* [linux-lvm] moving LVMs to another machine
@ 2011-01-14 19:25 Albert Everett
2011-01-14 19:41 ` Albert Everett
2011-01-14 19:54 ` [linux-lvm] " Ray Morris
0 siblings, 2 replies; 6+ messages in thread
From: Albert Everett @ 2011-01-14 19:25 UTC (permalink / raw)
To: linux-lvm
This is my first time trying to do this, so please forgive me if what I'm asking is trivial. I'm anxious not to loose data.
I have moved a Dell MD3000 with an MD1000 attached from one CentOS 4.5 x86_64 machine to another. I've installed Dell's drivers on the second machine and I see output below.
/dev/sdb and sdc are on the MD3000; /dev/sdd, sde and sdf are on the MD1000. Filesystem on both is ext3, and I only used LVM to concatenate <2TB volumes because the MD3000 firmware required it@the time.
I did not actively deactivate any volume groups or logical volumes before I made this move.
Q: What are my next steps after lvscan to bring the two logical volumes back online? OS, etc are all on /dev/sda; the logical volumes just have extra stuff.
Q: Am I right to assume that once lv0 and lv1 show as active, all I need to do is mount them somewhere, and that the filesystems they contain should be intact? I had no disk or controller failures that I know of.
Albert
[root@login-0-0 ~]# fdisk -l
Disk /dev/sda: 749.6 GB, 749606010880 bytes
255 heads, 63 sectors/track, 91134 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 3060 24579418+ 83 Linux
/dev/sda2 3061 6120 24579450 83 Linux
/dev/sda3 6121 8160 16386300 82 Linux swap
/dev/sda4 8161 91134 666488655 5 Extended
/dev/sda5 8161 91134 666488623+ 83 Linux
Disk /dev/sdb: 1796.7 GB, 1796776919040 bytes
255 heads, 63 sectors/track, 218445 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 218445 1754659431 8e Linux LVM
Disk /dev/sdc: 1796.7 GB, 1796776919040 bytes
255 heads, 63 sectors/track, 218445 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdc1 1 218445 1754659431 8e Linux LVM
Disk /dev/sdd: 2186.1 GB, 2186136256512 bytes
255 heads, 63 sectors/track, 265782 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdd1 1 265782 2134893883+ 8e Linux LVM
Disk /dev/sde: 2186.1 GB, 2186136256512 bytes
255 heads, 63 sectors/track, 265782 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sde1 1 265782 2134893883+ 8e Linux LVM
Disk /dev/sdf: 820.7 GB, 820745076736 bytes
255 heads, 63 sectors/track, 99783 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdf1 1 99783 801506916 8e Linux LVM
[root@login-0-0 ~]# pvscan
PV /dev/sdd1 VG vg1 lvm2 [1.99 TB / 0 free]
PV /dev/sde1 VG vg1 lvm2 [1.99 TB / 0 free]
PV /dev/sdf1 VG vg1 lvm2 [764.38 GB / 2.75 GB free]
PV /dev/sdb1 VG vg0 lvm2 [1.63 TB / 0 free]
PV /dev/sdc1 VG vg0 lvm2 [1.63 TB / 0 free]
Total: 5 [7.99 TB] / in use: 5 [7.99 TB] / in no VG: 0 [0 ]
[root@login-0-0 ~]# vgscan
Reading all physical volumes. This may take a while...
Found volume group "vg1" using metadata type lvm2
Found volume group "vg0" using metadata type lvm2
[root@login-0-0 ~]# lvscan
inactive '/dev/vg1/lv1' [4.72 TB] inherit
inactive '/dev/vg0/lv0' [3.27 TB] inherit
[root@login-0-0 ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sdd1
VG Name vg1
PV Size 8192.00 EB / not usable 8192.00 EB
Allocatable yes (but full)
PE Size (KByte) 131072
Total PE 16287
Free PE 0
Allocated PE 16287
PV UUID VSTyo3-r8rE-5lym-G6F7-683r-fdZm-Urm5af
--- Physical volume ---
PV Name /dev/sde1
VG Name vg1
PV Size 8192.00 EB / not usable 8192.00 EB
Allocatable yes (but full)
PE Size (KByte) 131072
Total PE 16287
Free PE 0
Allocated PE 16287
PV UUID eXd2Ee-L55A-bO43-ucXR-GnGM-n4fo-k0vOXP
--- Physical volume ---
PV Name /dev/sdf1
VG Name vg1
PV Size 764.38 GB / not usable 1.60 MB
Allocatable yes
PE Size (KByte) 131072
Total PE 6115
Free PE 22
Allocated PE 6093
PV UUID 4e0pIE-AoXc-2bb5-m6Q9-Eb2z-gmHW-Gu9Owl
--- Physical volume ---
PV Name /dev/sdb1
VG Name vg0
PV Size 8192.00 EB / not usable 8192.00 EB
Allocatable yes (but full)
PE Size (KByte) 131072
Total PE 13386
Free PE 0
Allocated PE 13386
PV UUID aX4eXc-5ADq-BTl2-sZzY-36kX-A0zx-bDKIQf
--- Physical volume ---
PV Name /dev/sdc1
VG Name vg0
PV Size 8192.00 EB / not usable 8192.00 EB
Allocatable yes (but full)
PE Size (KByte) 131072
Total PE 13386
Free PE 0
Allocated PE 13386
PV UUID fgu78M-yzS9-OPbV-2aXt-NgJP-A6dA-ZpQCkt
[root@login-0-0 ~]# vgdisplay
--- Volume group ---
VG Name vg1
System ID
Format lvm2
Metadata Areas 3
Metadata Sequence No 2
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 0
Max PV 0
Cur PV 3
Act PV 3
VG Size 4.72 TB
PE Size 128.00 MB
Total PE 38689
Alloc PE / Size 38667 / 4.72 TB
Free PE / Size 22 / 2.75 GB
VG UUID Qjb9Fq-o5Jy-MH1n-453l-gQqp-iqqN-49sUIS
--- Volume group ---
VG Name vg0
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 0
Max PV 0
Cur PV 2
Act PV 2
VG Size 3.27 TB
PE Size 128.00 MB
Total PE 26772
Alloc PE / Size 26772 / 3.27 TB
Free PE / Size 0 / 0
VG UUID DlYlrX-oFu7-S3rf-GVH0-5sVp-cuQh-0VGIdy
[root@login-0-0 ~]# lvdisplay
--- Logical volume ---
LV Name /dev/vg1/lv1
VG Name vg1
LV UUID SNdEg6-nshz-xtzf-ml4R-jraE-ukEZ-eqK6hE
LV Write Access read/write
LV Status NOT available
LV Size 4.72 TB
Current LE 38667
Segments 3
Allocation inherit
Read ahead sectors 0
--- Logical volume ---
LV Name /dev/vg0/lv0
VG Name vg0
LV UUID fOvYHo-jj3e-qoZK-nvU8-7yu3-z19U-siuqOP
LV Write Access read/write
LV Status NOT available
LV Size 3.27 TB
Current LE 26772
Segments 2
Allocation inherit
Read ahead sectors 0
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [linux-lvm] moving LVMs to another machine
2011-01-14 19:25 [linux-lvm] moving LVMs to another machine Albert Everett
@ 2011-01-14 19:41 ` Albert Everett
2011-01-14 19:56 ` Ray Morris
2011-01-14 19:54 ` [linux-lvm] " Ray Morris
1 sibling, 1 reply; 6+ messages in thread
From: Albert Everett @ 2011-01-14 19:41 UTC (permalink / raw)
To: linux-lvm
Also, found a backup of /etc/lvm from first machine.
Albert
[root@login-0-0 lvm]# ls -R
.:
archive backup lvm.conf
./archive:
vg0_00000.vg vg0_00001.vg vg0_00002.vg vg0_00003.vg vg1_00000.vg vg1_00001.vg
./backup:
vg0 vg1
[root@login-0-0 lvm]# cat backup/vg0
# Generated by LVM2: Tue Jan 20 12:42:14 2009
contents = "Text Format Volume Group"
version = 1
description = "Created *after* executing 'lvcreate -l 26772 -n lv0 /dev/vg0'"
creation_host = "whatever" # Linux whatever 2.6.9-55.0.2.ELsmp #1 SMP Tue Jun 26 14:14:47 EDT 2007 x86_64
creation_time = 1232476934 # Tue Jan 20 12:42:14 2009
vg0 {
id = "DlYlrX-oFu7-S3rf-GVH0-5sVp-cuQh-0VGIdy"
seqno = 4
status = ["RESIZEABLE", "READ", "WRITE"]
extent_size = 262144 # 128 Megabytes
max_lv = 0
max_pv = 0
physical_volumes {
pv0 {
id = "aX4eXc-5ADq-BTl2-sZzY-36kX-A0zx-bDKIQf"
device = "/dev/sdc1" # Hint only
status = ["ALLOCATABLE"]
dev_size = 18446744073709551615 # 8 (null)
pe_start = 384
pe_count = 13386 # 1.63403 Terabytes
}
pv1 {
id = "fgu78M-yzS9-OPbV-2aXt-NgJP-A6dA-ZpQCkt"
device = "/dev/sdd1" # Hint only
status = ["ALLOCATABLE"]
dev_size = 18446744073709551615 # 8 (null)
pe_start = 384
pe_count = 13386 # 1.63403 Terabytes
}
}
logical_volumes {
lv0 {
id = "fOvYHo-jj3e-qoZK-nvU8-7yu3-z19U-siuqOP"
status = ["READ", "WRITE", "VISIBLE"]
segment_count = 2
segment1 {
start_extent = 0
extent_count = 13386 # 1.63403 Terabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv0", 0
]
}
segment2 {
start_extent = 13386
extent_count = 13386 # 1.63403 Terabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv1", 0
]
}
}
}
}
[root@login-0-0 lvm]# cat backup/vg1
# Generated by LVM2: Fri Jan 16 11:30:34 2009
contents = "Text Format Volume Group"
version = 1
description = "Created *after* executing 'lvcreate -L 4.72T -n lv1 /dev/vg1'"
creation_host = "whatever" # Linux whatever 2.6.9-55.0.2.ELsmp #1 SMP Tue Jun 26 14:14:47 EDT 2007 x86_64
creation_time = 1232127034 # Fri Jan 16 11:30:34 2009
vg1 {
id = "Qjb9Fq-o5Jy-MH1n-453l-gQqp-iqqN-49sUIS"
seqno = 2
status = ["RESIZEABLE", "READ", "WRITE"]
extent_size = 262144 # 128 Megabytes
max_lv = 0
max_pv = 0
physical_volumes {
pv0 {
id = "VSTyo3-r8rE-5lym-G6F7-683r-fdZm-Urm5af"
device = "/dev/sde1" # Hint only
status = ["ALLOCATABLE"]
dev_size = 18446744073684372087 # 8 (null)
pe_start = 384
pe_count = 16287 # 1.98816 Terabytes
}
pv1 {
id = "eXd2Ee-L55A-bO43-ucXR-GnGM-n4fo-k0vOXP"
device = "/dev/sdf1" # Hint only
status = ["ALLOCATABLE"]
dev_size = 18446744073684372087 # 8 (null)
pe_start = 384
pe_count = 16287 # 1.98816 Terabytes
}
pv2 {
id = "4e0pIE-AoXc-2bb5-m6Q9-Eb2z-gmHW-Gu9Owl"
device = "/dev/sdg1" # Hint only
status = ["ALLOCATABLE"]
dev_size = 1603013832 # 764.377 Gigabytes
pe_start = 384
pe_count = 6115 # 764.375 Gigabytes
}
}
logical_volumes {
lv1 {
id = "SNdEg6-nshz-xtzf-ml4R-jraE-ukEZ-eqK6hE"
status = ["READ", "WRITE", "VISIBLE"]
segment_count = 3
segment1 {
start_extent = 0
extent_count = 16287 # 1.98816 Terabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv0", 0
]
}
segment2 {
start_extent = 16287
extent_count = 16287 # 1.98816 Terabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv1", 0
]
}
segment3 {
start_extent = 32574
extent_count = 6093 # 761.625 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv2", 0
]
}
}
}
}
Begin forwarded message:
> From: Albert Everett <aeeverett@ualr.edu>
> Date: January 14, 2011 1:25:24 PM CST
> To: linux-lvm@redhat.com
> Subject: moving LVMs to another machine
>
> This is my first time trying to do this, so please forgive me if what I'm asking is trivial. I'm anxious not to loose data.
>
> I have moved a Dell MD3000 with an MD1000 attached from one CentOS 4.5 x86_64 machine to another. I've installed Dell's drivers on the second machine and I see output below.
>
> /dev/sdb and sdc are on the MD3000; /dev/sdd, sde and sdf are on the MD1000. Filesystem on both is ext3, and I only used LVM to concatenate <2TB volumes because the MD3000 firmware required it@the time.
>
> I did not actively deactivate any volume groups or logical volumes before I made this move.
>
> Q: What are my next steps after lvscan to bring the two logical volumes back online? OS, etc are all on /dev/sda; the logical volumes just have extra stuff.
>
> Q: Am I right to assume that once lv0 and lv1 show as active, all I need to do is mount them somewhere, and that the filesystems they contain should be intact? I had no disk or controller failures that I know of.
>
> Albert
>
> [root@login-0-0 ~]# fdisk -l
>
> Disk /dev/sda: 749.6 GB, 749606010880 bytes
> 255 heads, 63 sectors/track, 91134 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sda1 * 1 3060 24579418+ 83 Linux
> /dev/sda2 3061 6120 24579450 83 Linux
> /dev/sda3 6121 8160 16386300 82 Linux swap
> /dev/sda4 8161 91134 666488655 5 Extended
> /dev/sda5 8161 91134 666488623+ 83 Linux
>
> Disk /dev/sdb: 1796.7 GB, 1796776919040 bytes
> 255 heads, 63 sectors/track, 218445 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sdb1 1 218445 1754659431 8e Linux LVM
>
> Disk /dev/sdc: 1796.7 GB, 1796776919040 bytes
> 255 heads, 63 sectors/track, 218445 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sdc1 1 218445 1754659431 8e Linux LVM
>
> Disk /dev/sdd: 2186.1 GB, 2186136256512 bytes
> 255 heads, 63 sectors/track, 265782 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sdd1 1 265782 2134893883+ 8e Linux LVM
>
> Disk /dev/sde: 2186.1 GB, 2186136256512 bytes
> 255 heads, 63 sectors/track, 265782 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sde1 1 265782 2134893883+ 8e Linux LVM
>
> Disk /dev/sdf: 820.7 GB, 820745076736 bytes
> 255 heads, 63 sectors/track, 99783 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sdf1 1 99783 801506916 8e Linux LVM
>
> [root@login-0-0 ~]# pvscan
> PV /dev/sdd1 VG vg1 lvm2 [1.99 TB / 0 free]
> PV /dev/sde1 VG vg1 lvm2 [1.99 TB / 0 free]
> PV /dev/sdf1 VG vg1 lvm2 [764.38 GB / 2.75 GB free]
> PV /dev/sdb1 VG vg0 lvm2 [1.63 TB / 0 free]
> PV /dev/sdc1 VG vg0 lvm2 [1.63 TB / 0 free]
> Total: 5 [7.99 TB] / in use: 5 [7.99 TB] / in no VG: 0 [0 ]
>
> [root@login-0-0 ~]# vgscan
> Reading all physical volumes. This may take a while...
> Found volume group "vg1" using metadata type lvm2
> Found volume group "vg0" using metadata type lvm2
>
> [root@login-0-0 ~]# lvscan
> inactive '/dev/vg1/lv1' [4.72 TB] inherit
> inactive '/dev/vg0/lv0' [3.27 TB] inherit
>
> [root@login-0-0 ~]# pvdisplay
> --- Physical volume ---
> PV Name /dev/sdd1
> VG Name vg1
> PV Size 8192.00 EB / not usable 8192.00 EB
> Allocatable yes (but full)
> PE Size (KByte) 131072
> Total PE 16287
> Free PE 0
> Allocated PE 16287
> PV UUID VSTyo3-r8rE-5lym-G6F7-683r-fdZm-Urm5af
>
> --- Physical volume ---
> PV Name /dev/sde1
> VG Name vg1
> PV Size 8192.00 EB / not usable 8192.00 EB
> Allocatable yes (but full)
> PE Size (KByte) 131072
> Total PE 16287
> Free PE 0
> Allocated PE 16287
> PV UUID eXd2Ee-L55A-bO43-ucXR-GnGM-n4fo-k0vOXP
>
> --- Physical volume ---
> PV Name /dev/sdf1
> VG Name vg1
> PV Size 764.38 GB / not usable 1.60 MB
> Allocatable yes
> PE Size (KByte) 131072
> Total PE 6115
> Free PE 22
> Allocated PE 6093
> PV UUID 4e0pIE-AoXc-2bb5-m6Q9-Eb2z-gmHW-Gu9Owl
>
> --- Physical volume ---
> PV Name /dev/sdb1
> VG Name vg0
> PV Size 8192.00 EB / not usable 8192.00 EB
> Allocatable yes (but full)
> PE Size (KByte) 131072
> Total PE 13386
> Free PE 0
> Allocated PE 13386
> PV UUID aX4eXc-5ADq-BTl2-sZzY-36kX-A0zx-bDKIQf
>
> --- Physical volume ---
> PV Name /dev/sdc1
> VG Name vg0
> PV Size 8192.00 EB / not usable 8192.00 EB
> Allocatable yes (but full)
> PE Size (KByte) 131072
> Total PE 13386
> Free PE 0
> Allocated PE 13386
> PV UUID fgu78M-yzS9-OPbV-2aXt-NgJP-A6dA-ZpQCkt
>
> [root@login-0-0 ~]# vgdisplay
> --- Volume group ---
> VG Name vg1
> System ID
> Format lvm2
> Metadata Areas 3
> Metadata Sequence No 2
> VG Access read/write
> VG Status resizable
> MAX LV 0
> Cur LV 1
> Open LV 0
> Max PV 0
> Cur PV 3
> Act PV 3
> VG Size 4.72 TB
> PE Size 128.00 MB
> Total PE 38689
> Alloc PE / Size 38667 / 4.72 TB
> Free PE / Size 22 / 2.75 GB
> VG UUID Qjb9Fq-o5Jy-MH1n-453l-gQqp-iqqN-49sUIS
>
> --- Volume group ---
> VG Name vg0
> System ID
> Format lvm2
> Metadata Areas 2
> Metadata Sequence No 4
> VG Access read/write
> VG Status resizable
> MAX LV 0
> Cur LV 1
> Open LV 0
> Max PV 0
> Cur PV 2
> Act PV 2
> VG Size 3.27 TB
> PE Size 128.00 MB
> Total PE 26772
> Alloc PE / Size 26772 / 3.27 TB
> Free PE / Size 0 / 0
> VG UUID DlYlrX-oFu7-S3rf-GVH0-5sVp-cuQh-0VGIdy
>
> [root@login-0-0 ~]# lvdisplay
> --- Logical volume ---
> LV Name /dev/vg1/lv1
> VG Name vg1
> LV UUID SNdEg6-nshz-xtzf-ml4R-jraE-ukEZ-eqK6hE
> LV Write Access read/write
> LV Status NOT available
> LV Size 4.72 TB
> Current LE 38667
> Segments 3
> Allocation inherit
> Read ahead sectors 0
>
> --- Logical volume ---
> LV Name /dev/vg0/lv0
> VG Name vg0
> LV UUID fOvYHo-jj3e-qoZK-nvU8-7yu3-z19U-siuqOP
> LV Write Access read/write
> LV Status NOT available
> LV Size 3.27 TB
> Current LE 26772
> Segments 2
> Allocation inherit
> Read ahead sectors 0
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [linux-lvm] moving LVMs to another machine
2011-01-14 19:25 [linux-lvm] moving LVMs to another machine Albert Everett
2011-01-14 19:41 ` Albert Everett
@ 2011-01-14 19:54 ` Ray Morris
2011-01-16 19:01 ` Ron Johnson
1 sibling, 1 reply; 6+ messages in thread
From: Ray Morris @ 2011-01-14 19:54 UTC (permalink / raw)
To: linux-lvm
> I did not actively deactivate any volume groups or logical volumes
> before I made this move.
> Q: What are my next steps after lvscan to bring the two logical
> volumes back online? OS, etc are all on /dev/sda; the logical volumes
> just have extra stuff.
Assuming that you powered down or somehow informed the OS that the
drives were leaving, you can just activate the volume groups with:
vgchange -ay
> Q: Am I right to assume that once lv0 and lv1 show as active, all I
> need to do is mount them somewhere, and that the filesystems they
> contain should be intact? I had no disk or controller failures that I
> know of.
Correct, assuming that they were unmounted before they were pulled
from their old homes. If they were pulled while mounted, you'd want
to fsck just as if the filesystem were on a raw disk or a partition.
Since you said you "did not actively deactivate any volume groups",
I'm assuming you did not use "vgexport" and therefore don't need to
use "vgimport".
--
Ray Morris
support@bettercgi.com
Strongbox - The next generation in site security:
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On Fri, 14 Jan 2011 13:25:24 -0600
Albert Everett <aeeverett@ualr.edu> wrote:
> This is my first time trying to do this, so please forgive me if what
> I'm asking is trivial. I'm anxious not to loose data.
>
> I have moved a Dell MD3000 with an MD1000 attached from one CentOS
> 4.5 x86_64 machine to another. I've installed Dell's drivers on the
> second machine and I see output below.
>
> /dev/sdb and sdc are on the MD3000; /dev/sdd, sde and sdf are on the
> MD1000. Filesystem on both is ext3, and I only used LVM to
> concatenate <2TB volumes because the MD3000 firmware required it at
> the time.
>
> I did not actively deactivate any volume groups or logical volumes
> before I made this move.
>
> Q: What are my next steps after lvscan to bring the two logical
> volumes back online? OS, etc are all on /dev/sda; the logical volumes
> just have extra stuff.
>
> Q: Am I right to assume that once lv0 and lv1 show as active, all I
> need to do is mount them somewhere, and that the filesystems they
> contain should be intact? I had no disk or controller failures that I
> know of.
>
> Albert
>
> [root@login-0-0 ~]# fdisk -l
>
> Disk /dev/sda: 749.6 GB, 749606010880 bytes
> 255 heads, 63 sectors/track, 91134 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sda1 * 1 3060 24579418+ 83 Linux
> /dev/sda2 3061 6120 24579450 83 Linux
> /dev/sda3 6121 8160 16386300 82 Linux swap
> /dev/sda4 8161 91134 666488655 5 Extended
> /dev/sda5 8161 91134 666488623+ 83 Linux
>
> Disk /dev/sdb: 1796.7 GB, 1796776919040 bytes
> 255 heads, 63 sectors/track, 218445 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sdb1 1 218445 1754659431 8e Linux LVM
>
> Disk /dev/sdc: 1796.7 GB, 1796776919040 bytes
> 255 heads, 63 sectors/track, 218445 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sdc1 1 218445 1754659431 8e Linux LVM
>
> Disk /dev/sdd: 2186.1 GB, 2186136256512 bytes
> 255 heads, 63 sectors/track, 265782 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sdd1 1 265782 2134893883+ 8e Linux LVM
>
> Disk /dev/sde: 2186.1 GB, 2186136256512 bytes
> 255 heads, 63 sectors/track, 265782 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sde1 1 265782 2134893883+ 8e Linux LVM
>
> Disk /dev/sdf: 820.7 GB, 820745076736 bytes
> 255 heads, 63 sectors/track, 99783 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/sdf1 1 99783 801506916 8e Linux LVM
>
> [root@login-0-0 ~]# pvscan
> PV /dev/sdd1 VG vg1 lvm2 [1.99 TB / 0 free]
> PV /dev/sde1 VG vg1 lvm2 [1.99 TB / 0 free]
> PV /dev/sdf1 VG vg1 lvm2 [764.38 GB / 2.75 GB free]
> PV /dev/sdb1 VG vg0 lvm2 [1.63 TB / 0 free]
> PV /dev/sdc1 VG vg0 lvm2 [1.63 TB / 0 free]
> Total: 5 [7.99 TB] / in use: 5 [7.99 TB] / in no VG: 0 [0 ]
>
> [root@login-0-0 ~]# vgscan
> Reading all physical volumes. This may take a while...
> Found volume group "vg1" using metadata type lvm2
> Found volume group "vg0" using metadata type lvm2
>
> [root@login-0-0 ~]# lvscan
> inactive '/dev/vg1/lv1' [4.72 TB] inherit
> inactive '/dev/vg0/lv0' [3.27 TB] inherit
>
> [root@login-0-0 ~]# pvdisplay
> --- Physical volume ---
> PV Name /dev/sdd1
> VG Name vg1
> PV Size 8192.00 EB / not usable 8192.00 EB
> Allocatable yes (but full)
> PE Size (KByte) 131072
> Total PE 16287
> Free PE 0
> Allocated PE 16287
> PV UUID VSTyo3-r8rE-5lym-G6F7-683r-fdZm-Urm5af
>
> --- Physical volume ---
> PV Name /dev/sde1
> VG Name vg1
> PV Size 8192.00 EB / not usable 8192.00 EB
> Allocatable yes (but full)
> PE Size (KByte) 131072
> Total PE 16287
> Free PE 0
> Allocated PE 16287
> PV UUID eXd2Ee-L55A-bO43-ucXR-GnGM-n4fo-k0vOXP
>
> --- Physical volume ---
> PV Name /dev/sdf1
> VG Name vg1
> PV Size 764.38 GB / not usable 1.60 MB
> Allocatable yes
> PE Size (KByte) 131072
> Total PE 6115
> Free PE 22
> Allocated PE 6093
> PV UUID 4e0pIE-AoXc-2bb5-m6Q9-Eb2z-gmHW-Gu9Owl
>
> --- Physical volume ---
> PV Name /dev/sdb1
> VG Name vg0
> PV Size 8192.00 EB / not usable 8192.00 EB
> Allocatable yes (but full)
> PE Size (KByte) 131072
> Total PE 13386
> Free PE 0
> Allocated PE 13386
> PV UUID aX4eXc-5ADq-BTl2-sZzY-36kX-A0zx-bDKIQf
>
> --- Physical volume ---
> PV Name /dev/sdc1
> VG Name vg0
> PV Size 8192.00 EB / not usable 8192.00 EB
> Allocatable yes (but full)
> PE Size (KByte) 131072
> Total PE 13386
> Free PE 0
> Allocated PE 13386
> PV UUID fgu78M-yzS9-OPbV-2aXt-NgJP-A6dA-ZpQCkt
>
> [root@login-0-0 ~]# vgdisplay
> --- Volume group ---
> VG Name vg1
> System ID
> Format lvm2
> Metadata Areas 3
> Metadata Sequence No 2
> VG Access read/write
> VG Status resizable
> MAX LV 0
> Cur LV 1
> Open LV 0
> Max PV 0
> Cur PV 3
> Act PV 3
> VG Size 4.72 TB
> PE Size 128.00 MB
> Total PE 38689
> Alloc PE / Size 38667 / 4.72 TB
> Free PE / Size 22 / 2.75 GB
> VG UUID Qjb9Fq-o5Jy-MH1n-453l-gQqp-iqqN-49sUIS
>
> --- Volume group ---
> VG Name vg0
> System ID
> Format lvm2
> Metadata Areas 2
> Metadata Sequence No 4
> VG Access read/write
> VG Status resizable
> MAX LV 0
> Cur LV 1
> Open LV 0
> Max PV 0
> Cur PV 2
> Act PV 2
> VG Size 3.27 TB
> PE Size 128.00 MB
> Total PE 26772
> Alloc PE / Size 26772 / 3.27 TB
> Free PE / Size 0 / 0
> VG UUID DlYlrX-oFu7-S3rf-GVH0-5sVp-cuQh-0VGIdy
>
> [root@login-0-0 ~]# lvdisplay
> --- Logical volume ---
> LV Name /dev/vg1/lv1
> VG Name vg1
> LV UUID SNdEg6-nshz-xtzf-ml4R-jraE-ukEZ-eqK6hE
> LV Write Access read/write
> LV Status NOT available
> LV Size 4.72 TB
> Current LE 38667
> Segments 3
> Allocation inherit
> Read ahead sectors 0
>
> --- Logical volume ---
> LV Name /dev/vg0/lv0
> VG Name vg0
> LV UUID fOvYHo-jj3e-qoZK-nvU8-7yu3-z19U-siuqOP
> LV Write Access read/write
> LV Status NOT available
> LV Size 3.27 TB
> Current LE 26772
> Segments 2
> Allocation inherit
> Read ahead sectors 0
>
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [linux-lvm] moving LVMs to another machine
2011-01-14 19:41 ` Albert Everett
@ 2011-01-14 19:56 ` Ray Morris
2011-01-14 20:22 ` [linux-lvm] SOLVED " Albert Everett
0 siblings, 1 reply; 6+ messages in thread
From: Ray Morris @ 2011-01-14 19:56 UTC (permalink / raw)
To: linux-lvm
> Also, found a backup of /etc/lvm from first machine.
That metadata is (by default) stored on every PV (disk),
so the backup is only needed if you accidentally change
something and need to put it back the way it was.
On Fri, 14 Jan 2011 13:41:17 -0600
Albert Everett <aeeverett@ualr.edu> wrote:
> Also, found a backup of /etc/lvm from first machine.
>
> Albert
>
> [root@login-0-0 lvm]# ls -R
> .:
> archive backup lvm.conf
>
> ./archive:
> vg0_00000.vg vg0_00001.vg vg0_00002.vg vg0_00003.vg vg1_00000.vg
> vg1_00001.vg
>
> ./backup:
> vg0 vg1
>
> [root@login-0-0 lvm]# cat backup/vg0
> # Generated by LVM2: Tue Jan 20 12:42:14 2009
>
> contents = "Text Format Volume Group"
> version = 1
>
> description = "Created *after* executing 'lvcreate -l 26772 -n
> lv0 /dev/vg0'"
>
> creation_host = "whatever" # Linux whatever 2.6.9-55.0.2.ELsmp
> #1 SMP Tue Jun 26 14:14:47 EDT 2007 x86_64 creation_time =
> 1232476934 # Tue Jan 20 12:42:14 2009
>
> vg0 {
> id = "DlYlrX-oFu7-S3rf-GVH0-5sVp-cuQh-0VGIdy"
> seqno = 4
> status = ["RESIZEABLE", "READ", "WRITE"]
> extent_size = 262144 # 128 Megabytes
> max_lv = 0
> max_pv = 0
>
> physical_volumes {
>
> pv0 {
> id = "aX4eXc-5ADq-BTl2-sZzY-36kX-A0zx-bDKIQf"
> device = "/dev/sdc1" # Hint only
>
> status = ["ALLOCATABLE"]
> dev_size = 18446744073709551615 # 8
> (null) pe_start = 384
> pe_count = 13386 # 1.63403 Terabytes
> }
>
> pv1 {
> id = "fgu78M-yzS9-OPbV-2aXt-NgJP-A6dA-ZpQCkt"
> device = "/dev/sdd1" # Hint only
>
> status = ["ALLOCATABLE"]
> dev_size = 18446744073709551615 # 8
> (null) pe_start = 384
> pe_count = 13386 # 1.63403 Terabytes
> }
> }
>
> logical_volumes {
>
> lv0 {
> id = "fOvYHo-jj3e-qoZK-nvU8-7yu3-z19U-siuqOP"
> status = ["READ", "WRITE", "VISIBLE"]
> segment_count = 2
>
> segment1 {
> start_extent = 0
> extent_count = 13386 # 1.63403
> Terabytes
>
> type = "striped"
> stripe_count = 1 # linear
>
> stripes = [
> "pv0", 0
> ]
> }
> segment2 {
> start_extent = 13386
> extent_count = 13386 # 1.63403
> Terabytes
>
> type = "striped"
> stripe_count = 1 # linear
>
> stripes = [
> "pv1", 0
> ]
> }
> }
> }
> }
>
> [root@login-0-0 lvm]# cat backup/vg1
> # Generated by LVM2: Fri Jan 16 11:30:34 2009
>
> contents = "Text Format Volume Group"
> version = 1
>
> description = "Created *after* executing 'lvcreate -L 4.72T -n
> lv1 /dev/vg1'"
>
> creation_host = "whatever" # Linux whatever 2.6.9-55.0.2.ELsmp
> #1 SMP Tue Jun 26 14:14:47 EDT 2007 x86_64 creation_time =
> 1232127034 # Fri Jan 16 11:30:34 2009
>
> vg1 {
> id = "Qjb9Fq-o5Jy-MH1n-453l-gQqp-iqqN-49sUIS"
> seqno = 2
> status = ["RESIZEABLE", "READ", "WRITE"]
> extent_size = 262144 # 128 Megabytes
> max_lv = 0
> max_pv = 0
>
> physical_volumes {
>
> pv0 {
> id = "VSTyo3-r8rE-5lym-G6F7-683r-fdZm-Urm5af"
> device = "/dev/sde1" # Hint only
>
> status = ["ALLOCATABLE"]
> dev_size = 18446744073684372087 # 8
> (null) pe_start = 384
> pe_count = 16287 # 1.98816 Terabytes
> }
>
> pv1 {
> id = "eXd2Ee-L55A-bO43-ucXR-GnGM-n4fo-k0vOXP"
> device = "/dev/sdf1" # Hint only
>
> status = ["ALLOCATABLE"]
> dev_size = 18446744073684372087 # 8
> (null) pe_start = 384
> pe_count = 16287 # 1.98816 Terabytes
> }
>
> pv2 {
> id = "4e0pIE-AoXc-2bb5-m6Q9-Eb2z-gmHW-Gu9Owl"
> device = "/dev/sdg1" # Hint only
>
> status = ["ALLOCATABLE"]
> dev_size = 1603013832 # 764.377
> Gigabytes pe_start = 384
> pe_count = 6115 # 764.375 Gigabytes
> }
> }
>
> logical_volumes {
>
> lv1 {
> id = "SNdEg6-nshz-xtzf-ml4R-jraE-ukEZ-eqK6hE"
> status = ["READ", "WRITE", "VISIBLE"]
> segment_count = 3
>
> segment1 {
> start_extent = 0
> extent_count = 16287 # 1.98816
> Terabytes
>
> type = "striped"
> stripe_count = 1 # linear
>
> stripes = [
> "pv0", 0
> ]
> }
> segment2 {
> start_extent = 16287
> extent_count = 16287 # 1.98816
> Terabytes
>
> type = "striped"
> stripe_count = 1 # linear
>
> stripes = [
> "pv1", 0
> ]
> }
> segment3 {
> start_extent = 32574
> extent_count = 6093 # 761.625
> Gigabytes
>
> type = "striped"
> stripe_count = 1 # linear
>
> stripes = [
> "pv2", 0
> ]
> }
> }
> }
> }
>
> Begin forwarded message:
>
> > From: Albert Everett <aeeverett@ualr.edu>
> > Date: January 14, 2011 1:25:24 PM CST
> > To: linux-lvm@redhat.com
> > Subject: moving LVMs to another machine
> >
> > This is my first time trying to do this, so please forgive me if
> > what I'm asking is trivial. I'm anxious not to loose data.
> >
> > I have moved a Dell MD3000 with an MD1000 attached from one CentOS
> > 4.5 x86_64 machine to another. I've installed Dell's drivers on the
> > second machine and I see output below.
> >
> > /dev/sdb and sdc are on the MD3000; /dev/sdd, sde and sdf are on
> > the MD1000. Filesystem on both is ext3, and I only used LVM to
> > concatenate <2TB volumes because the MD3000 firmware required it at
> > the time.
> >
> > I did not actively deactivate any volume groups or logical volumes
> > before I made this move.
> >
> > Q: What are my next steps after lvscan to bring the two logical
> > volumes back online? OS, etc are all on /dev/sda; the logical
> > volumes just have extra stuff.
> >
> > Q: Am I right to assume that once lv0 and lv1 show as active, all I
> > need to do is mount them somewhere, and that the filesystems they
> > contain should be intact? I had no disk or controller failures that
> > I know of.
> >
> > Albert
> >
> > [root@login-0-0 ~]# fdisk -l
> >
> > Disk /dev/sda: 749.6 GB, 749606010880 bytes
> > 255 heads, 63 sectors/track, 91134 cylinders
> > Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> > Device Boot Start End Blocks Id System
> > /dev/sda1 * 1 3060 24579418+ 83 Linux
> > /dev/sda2 3061 6120 24579450 83 Linux
> > /dev/sda3 6121 8160 16386300 82 Linux swap
> > /dev/sda4 8161 91134 666488655 5 Extended
> > /dev/sda5 8161 91134 666488623+ 83 Linux
> >
> > Disk /dev/sdb: 1796.7 GB, 1796776919040 bytes
> > 255 heads, 63 sectors/track, 218445 cylinders
> > Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> > Device Boot Start End Blocks Id System
> > /dev/sdb1 1 218445 1754659431 8e Linux LVM
> >
> > Disk /dev/sdc: 1796.7 GB, 1796776919040 bytes
> > 255 heads, 63 sectors/track, 218445 cylinders
> > Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> > Device Boot Start End Blocks Id System
> > /dev/sdc1 1 218445 1754659431 8e Linux LVM
> >
> > Disk /dev/sdd: 2186.1 GB, 2186136256512 bytes
> > 255 heads, 63 sectors/track, 265782 cylinders
> > Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> > Device Boot Start End Blocks Id System
> > /dev/sdd1 1 265782 2134893883+ 8e Linux LVM
> >
> > Disk /dev/sde: 2186.1 GB, 2186136256512 bytes
> > 255 heads, 63 sectors/track, 265782 cylinders
> > Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> > Device Boot Start End Blocks Id System
> > /dev/sde1 1 265782 2134893883+ 8e Linux LVM
> >
> > Disk /dev/sdf: 820.7 GB, 820745076736 bytes
> > 255 heads, 63 sectors/track, 99783 cylinders
> > Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> > Device Boot Start End Blocks Id System
> > /dev/sdf1 1 99783 801506916 8e Linux LVM
> >
> > [root@login-0-0 ~]# pvscan
> > PV /dev/sdd1 VG vg1 lvm2 [1.99 TB / 0 free]
> > PV /dev/sde1 VG vg1 lvm2 [1.99 TB / 0 free]
> > PV /dev/sdf1 VG vg1 lvm2 [764.38 GB / 2.75 GB free]
> > PV /dev/sdb1 VG vg0 lvm2 [1.63 TB / 0 free]
> > PV /dev/sdc1 VG vg0 lvm2 [1.63 TB / 0 free]
> > Total: 5 [7.99 TB] / in use: 5 [7.99 TB] / in no VG: 0 [0 ]
> >
> > [root@login-0-0 ~]# vgscan
> > Reading all physical volumes. This may take a while...
> > Found volume group "vg1" using metadata type lvm2
> > Found volume group "vg0" using metadata type lvm2
> >
> > [root@login-0-0 ~]# lvscan
> > inactive '/dev/vg1/lv1' [4.72 TB] inherit
> > inactive '/dev/vg0/lv0' [3.27 TB] inherit
> >
> > [root@login-0-0 ~]# pvdisplay
> > --- Physical volume ---
> > PV Name /dev/sdd1
> > VG Name vg1
> > PV Size 8192.00 EB / not usable 8192.00 EB
> > Allocatable yes (but full)
> > PE Size (KByte) 131072
> > Total PE 16287
> > Free PE 0
> > Allocated PE 16287
> > PV UUID VSTyo3-r8rE-5lym-G6F7-683r-fdZm-Urm5af
> >
> > --- Physical volume ---
> > PV Name /dev/sde1
> > VG Name vg1
> > PV Size 8192.00 EB / not usable 8192.00 EB
> > Allocatable yes (but full)
> > PE Size (KByte) 131072
> > Total PE 16287
> > Free PE 0
> > Allocated PE 16287
> > PV UUID eXd2Ee-L55A-bO43-ucXR-GnGM-n4fo-k0vOXP
> >
> > --- Physical volume ---
> > PV Name /dev/sdf1
> > VG Name vg1
> > PV Size 764.38 GB / not usable 1.60 MB
> > Allocatable yes
> > PE Size (KByte) 131072
> > Total PE 6115
> > Free PE 22
> > Allocated PE 6093
> > PV UUID 4e0pIE-AoXc-2bb5-m6Q9-Eb2z-gmHW-Gu9Owl
> >
> > --- Physical volume ---
> > PV Name /dev/sdb1
> > VG Name vg0
> > PV Size 8192.00 EB / not usable 8192.00 EB
> > Allocatable yes (but full)
> > PE Size (KByte) 131072
> > Total PE 13386
> > Free PE 0
> > Allocated PE 13386
> > PV UUID aX4eXc-5ADq-BTl2-sZzY-36kX-A0zx-bDKIQf
> >
> > --- Physical volume ---
> > PV Name /dev/sdc1
> > VG Name vg0
> > PV Size 8192.00 EB / not usable 8192.00 EB
> > Allocatable yes (but full)
> > PE Size (KByte) 131072
> > Total PE 13386
> > Free PE 0
> > Allocated PE 13386
> > PV UUID fgu78M-yzS9-OPbV-2aXt-NgJP-A6dA-ZpQCkt
> >
> > [root@login-0-0 ~]# vgdisplay
> > --- Volume group ---
> > VG Name vg1
> > System ID
> > Format lvm2
> > Metadata Areas 3
> > Metadata Sequence No 2
> > VG Access read/write
> > VG Status resizable
> > MAX LV 0
> > Cur LV 1
> > Open LV 0
> > Max PV 0
> > Cur PV 3
> > Act PV 3
> > VG Size 4.72 TB
> > PE Size 128.00 MB
> > Total PE 38689
> > Alloc PE / Size 38667 / 4.72 TB
> > Free PE / Size 22 / 2.75 GB
> > VG UUID Qjb9Fq-o5Jy-MH1n-453l-gQqp-iqqN-49sUIS
> >
> > --- Volume group ---
> > VG Name vg0
> > System ID
> > Format lvm2
> > Metadata Areas 2
> > Metadata Sequence No 4
> > VG Access read/write
> > VG Status resizable
> > MAX LV 0
> > Cur LV 1
> > Open LV 0
> > Max PV 0
> > Cur PV 2
> > Act PV 2
> > VG Size 3.27 TB
> > PE Size 128.00 MB
> > Total PE 26772
> > Alloc PE / Size 26772 / 3.27 TB
> > Free PE / Size 0 / 0
> > VG UUID DlYlrX-oFu7-S3rf-GVH0-5sVp-cuQh-0VGIdy
> >
> > [root@login-0-0 ~]# lvdisplay
> > --- Logical volume ---
> > LV Name /dev/vg1/lv1
> > VG Name vg1
> > LV UUID SNdEg6-nshz-xtzf-ml4R-jraE-ukEZ-eqK6hE
> > LV Write Access read/write
> > LV Status NOT available
> > LV Size 4.72 TB
> > Current LE 38667
> > Segments 3
> > Allocation inherit
> > Read ahead sectors 0
> >
> > --- Logical volume ---
> > LV Name /dev/vg0/lv0
> > VG Name vg0
> > LV UUID fOvYHo-jj3e-qoZK-nvU8-7yu3-z19U-siuqOP
> > LV Write Access read/write
> > LV Status NOT available
> > LV Size 3.27 TB
> > Current LE 26772
> > Segments 2
> > Allocation inherit
> > Read ahead sectors 0
> >
>
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
--
Ray Morris
support@bettercgi.com
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [linux-lvm] SOLVED Re: moving LVMs to another machine
2011-01-14 19:56 ` Ray Morris
@ 2011-01-14 20:22 ` Albert Everett
0 siblings, 0 replies; 6+ messages in thread
From: Albert Everett @ 2011-01-14 20:22 UTC (permalink / raw)
To: LVM general discussion and development
Ray -
Thanks VERY much for your replies.
I found after I sent my msgs to this list that the second machine automagically created its own /etc/lvm, and when I did
# vgchange -a y
everything came up great.
It's cool that the LVM config info is stored to the PVs. My compliments to the developers.
Albert
On Jan 14, 2011, at 1:56 PM, Ray Morris wrote:
>> Also, found a backup of /etc/lvm from first machine.
>
> That metadata is (by default) stored on every PV (disk),
> so the backup is only needed if you accidentally change
> something and need to put it back the way it was.
>
>
> On Fri, 14 Jan 2011 13:41:17 -0600
> Albert Everett <aeeverett@ualr.edu> wrote:
>
>> Also, found a backup of /etc/lvm from first machine.
>>
>> Albert
>>
>> [root@login-0-0 lvm]# ls -R
>> .:
>> archive backup lvm.conf
>>
>> ./archive:
>> vg0_00000.vg vg0_00001.vg vg0_00002.vg vg0_00003.vg vg1_00000.vg
>> vg1_00001.vg
>>
>> ./backup:
>> vg0 vg1
>>
>> [root@login-0-0 lvm]# cat backup/vg0
>> # Generated by LVM2: Tue Jan 20 12:42:14 2009
>>
>> contents = "Text Format Volume Group"
>> version = 1
>>
>> description = "Created *after* executing 'lvcreate -l 26772 -n
>> lv0 /dev/vg0'"
>>
>> creation_host = "whatever" # Linux whatever 2.6.9-55.0.2.ELsmp
>> #1 SMP Tue Jun 26 14:14:47 EDT 2007 x86_64 creation_time =
>> 1232476934 # Tue Jan 20 12:42:14 2009
>>
>> vg0 {
>> id = "DlYlrX-oFu7-S3rf-GVH0-5sVp-cuQh-0VGIdy"
>> seqno = 4
>> status = ["RESIZEABLE", "READ", "WRITE"]
>> extent_size = 262144 # 128 Megabytes
>> max_lv = 0
>> max_pv = 0
>>
>> physical_volumes {
>>
>> pv0 {
>> id = "aX4eXc-5ADq-BTl2-sZzY-36kX-A0zx-bDKIQf"
>> device = "/dev/sdc1" # Hint only
>>
>> status = ["ALLOCATABLE"]
>> dev_size = 18446744073709551615 # 8
>> (null) pe_start = 384
>> pe_count = 13386 # 1.63403 Terabytes
>> }
>>
>> pv1 {
>> id = "fgu78M-yzS9-OPbV-2aXt-NgJP-A6dA-ZpQCkt"
>> device = "/dev/sdd1" # Hint only
>>
>> status = ["ALLOCATABLE"]
>> dev_size = 18446744073709551615 # 8
>> (null) pe_start = 384
>> pe_count = 13386 # 1.63403 Terabytes
>> }
>> }
>>
>> logical_volumes {
>>
>> lv0 {
>> id = "fOvYHo-jj3e-qoZK-nvU8-7yu3-z19U-siuqOP"
>> status = ["READ", "WRITE", "VISIBLE"]
>> segment_count = 2
>>
>> segment1 {
>> start_extent = 0
>> extent_count = 13386 # 1.63403
>> Terabytes
>>
>> type = "striped"
>> stripe_count = 1 # linear
>>
>> stripes = [
>> "pv0", 0
>> ]
>> }
>> segment2 {
>> start_extent = 13386
>> extent_count = 13386 # 1.63403
>> Terabytes
>>
>> type = "striped"
>> stripe_count = 1 # linear
>>
>> stripes = [
>> "pv1", 0
>> ]
>> }
>> }
>> }
>> }
>>
>> [root@login-0-0 lvm]# cat backup/vg1
>> # Generated by LVM2: Fri Jan 16 11:30:34 2009
>>
>> contents = "Text Format Volume Group"
>> version = 1
>>
>> description = "Created *after* executing 'lvcreate -L 4.72T -n
>> lv1 /dev/vg1'"
>>
>> creation_host = "whatever" # Linux whatever 2.6.9-55.0.2.ELsmp
>> #1 SMP Tue Jun 26 14:14:47 EDT 2007 x86_64 creation_time =
>> 1232127034 # Fri Jan 16 11:30:34 2009
>>
>> vg1 {
>> id = "Qjb9Fq-o5Jy-MH1n-453l-gQqp-iqqN-49sUIS"
>> seqno = 2
>> status = ["RESIZEABLE", "READ", "WRITE"]
>> extent_size = 262144 # 128 Megabytes
>> max_lv = 0
>> max_pv = 0
>>
>> physical_volumes {
>>
>> pv0 {
>> id = "VSTyo3-r8rE-5lym-G6F7-683r-fdZm-Urm5af"
>> device = "/dev/sde1" # Hint only
>>
>> status = ["ALLOCATABLE"]
>> dev_size = 18446744073684372087 # 8
>> (null) pe_start = 384
>> pe_count = 16287 # 1.98816 Terabytes
>> }
>>
>> pv1 {
>> id = "eXd2Ee-L55A-bO43-ucXR-GnGM-n4fo-k0vOXP"
>> device = "/dev/sdf1" # Hint only
>>
>> status = ["ALLOCATABLE"]
>> dev_size = 18446744073684372087 # 8
>> (null) pe_start = 384
>> pe_count = 16287 # 1.98816 Terabytes
>> }
>>
>> pv2 {
>> id = "4e0pIE-AoXc-2bb5-m6Q9-Eb2z-gmHW-Gu9Owl"
>> device = "/dev/sdg1" # Hint only
>>
>> status = ["ALLOCATABLE"]
>> dev_size = 1603013832 # 764.377
>> Gigabytes pe_start = 384
>> pe_count = 6115 # 764.375 Gigabytes
>> }
>> }
>>
>> logical_volumes {
>>
>> lv1 {
>> id = "SNdEg6-nshz-xtzf-ml4R-jraE-ukEZ-eqK6hE"
>> status = ["READ", "WRITE", "VISIBLE"]
>> segment_count = 3
>>
>> segment1 {
>> start_extent = 0
>> extent_count = 16287 # 1.98816
>> Terabytes
>>
>> type = "striped"
>> stripe_count = 1 # linear
>>
>> stripes = [
>> "pv0", 0
>> ]
>> }
>> segment2 {
>> start_extent = 16287
>> extent_count = 16287 # 1.98816
>> Terabytes
>>
>> type = "striped"
>> stripe_count = 1 # linear
>>
>> stripes = [
>> "pv1", 0
>> ]
>> }
>> segment3 {
>> start_extent = 32574
>> extent_count = 6093 # 761.625
>> Gigabytes
>>
>> type = "striped"
>> stripe_count = 1 # linear
>>
>> stripes = [
>> "pv2", 0
>> ]
>> }
>> }
>> }
>> }
>>
>> Begin forwarded message:
>>
>>> From: Albert Everett <aeeverett@ualr.edu>
>>> Date: January 14, 2011 1:25:24 PM CST
>>> To: linux-lvm@redhat.com
>>> Subject: moving LVMs to another machine
>>>
>>> This is my first time trying to do this, so please forgive me if
>>> what I'm asking is trivial. I'm anxious not to loose data.
>>>
>>> I have moved a Dell MD3000 with an MD1000 attached from one CentOS
>>> 4.5 x86_64 machine to another. I've installed Dell's drivers on the
>>> second machine and I see output below.
>>>
>>> /dev/sdb and sdc are on the MD3000; /dev/sdd, sde and sdf are on
>>> the MD1000. Filesystem on both is ext3, and I only used LVM to
>>> concatenate <2TB volumes because the MD3000 firmware required it at
>>> the time.
>>>
>>> I did not actively deactivate any volume groups or logical volumes
>>> before I made this move.
>>>
>>> Q: What are my next steps after lvscan to bring the two logical
>>> volumes back online? OS, etc are all on /dev/sda; the logical
>>> volumes just have extra stuff.
>>>
>>> Q: Am I right to assume that once lv0 and lv1 show as active, all I
>>> need to do is mount them somewhere, and that the filesystems they
>>> contain should be intact? I had no disk or controller failures that
>>> I know of.
>>>
>>> Albert
>>>
>>> [root@login-0-0 ~]# fdisk -l
>>>
>>> Disk /dev/sda: 749.6 GB, 749606010880 bytes
>>> 255 heads, 63 sectors/track, 91134 cylinders
>>> Units = cylinders of 16065 * 512 = 8225280 bytes
>>>
>>> Device Boot Start End Blocks Id System
>>> /dev/sda1 * 1 3060 24579418+ 83 Linux
>>> /dev/sda2 3061 6120 24579450 83 Linux
>>> /dev/sda3 6121 8160 16386300 82 Linux swap
>>> /dev/sda4 8161 91134 666488655 5 Extended
>>> /dev/sda5 8161 91134 666488623+ 83 Linux
>>>
>>> Disk /dev/sdb: 1796.7 GB, 1796776919040 bytes
>>> 255 heads, 63 sectors/track, 218445 cylinders
>>> Units = cylinders of 16065 * 512 = 8225280 bytes
>>>
>>> Device Boot Start End Blocks Id System
>>> /dev/sdb1 1 218445 1754659431 8e Linux LVM
>>>
>>> Disk /dev/sdc: 1796.7 GB, 1796776919040 bytes
>>> 255 heads, 63 sectors/track, 218445 cylinders
>>> Units = cylinders of 16065 * 512 = 8225280 bytes
>>>
>>> Device Boot Start End Blocks Id System
>>> /dev/sdc1 1 218445 1754659431 8e Linux LVM
>>>
>>> Disk /dev/sdd: 2186.1 GB, 2186136256512 bytes
>>> 255 heads, 63 sectors/track, 265782 cylinders
>>> Units = cylinders of 16065 * 512 = 8225280 bytes
>>>
>>> Device Boot Start End Blocks Id System
>>> /dev/sdd1 1 265782 2134893883+ 8e Linux LVM
>>>
>>> Disk /dev/sde: 2186.1 GB, 2186136256512 bytes
>>> 255 heads, 63 sectors/track, 265782 cylinders
>>> Units = cylinders of 16065 * 512 = 8225280 bytes
>>>
>>> Device Boot Start End Blocks Id System
>>> /dev/sde1 1 265782 2134893883+ 8e Linux LVM
>>>
>>> Disk /dev/sdf: 820.7 GB, 820745076736 bytes
>>> 255 heads, 63 sectors/track, 99783 cylinders
>>> Units = cylinders of 16065 * 512 = 8225280 bytes
>>>
>>> Device Boot Start End Blocks Id System
>>> /dev/sdf1 1 99783 801506916 8e Linux LVM
>>>
>>> [root@login-0-0 ~]# pvscan
>>> PV /dev/sdd1 VG vg1 lvm2 [1.99 TB / 0 free]
>>> PV /dev/sde1 VG vg1 lvm2 [1.99 TB / 0 free]
>>> PV /dev/sdf1 VG vg1 lvm2 [764.38 GB / 2.75 GB free]
>>> PV /dev/sdb1 VG vg0 lvm2 [1.63 TB / 0 free]
>>> PV /dev/sdc1 VG vg0 lvm2 [1.63 TB / 0 free]
>>> Total: 5 [7.99 TB] / in use: 5 [7.99 TB] / in no VG: 0 [0 ]
>>>
>>> [root@login-0-0 ~]# vgscan
>>> Reading all physical volumes. This may take a while...
>>> Found volume group "vg1" using metadata type lvm2
>>> Found volume group "vg0" using metadata type lvm2
>>>
>>> [root@login-0-0 ~]# lvscan
>>> inactive '/dev/vg1/lv1' [4.72 TB] inherit
>>> inactive '/dev/vg0/lv0' [3.27 TB] inherit
>>>
>>> [root@login-0-0 ~]# pvdisplay
>>> --- Physical volume ---
>>> PV Name /dev/sdd1
>>> VG Name vg1
>>> PV Size 8192.00 EB / not usable 8192.00 EB
>>> Allocatable yes (but full)
>>> PE Size (KByte) 131072
>>> Total PE 16287
>>> Free PE 0
>>> Allocated PE 16287
>>> PV UUID VSTyo3-r8rE-5lym-G6F7-683r-fdZm-Urm5af
>>>
>>> --- Physical volume ---
>>> PV Name /dev/sde1
>>> VG Name vg1
>>> PV Size 8192.00 EB / not usable 8192.00 EB
>>> Allocatable yes (but full)
>>> PE Size (KByte) 131072
>>> Total PE 16287
>>> Free PE 0
>>> Allocated PE 16287
>>> PV UUID eXd2Ee-L55A-bO43-ucXR-GnGM-n4fo-k0vOXP
>>>
>>> --- Physical volume ---
>>> PV Name /dev/sdf1
>>> VG Name vg1
>>> PV Size 764.38 GB / not usable 1.60 MB
>>> Allocatable yes
>>> PE Size (KByte) 131072
>>> Total PE 6115
>>> Free PE 22
>>> Allocated PE 6093
>>> PV UUID 4e0pIE-AoXc-2bb5-m6Q9-Eb2z-gmHW-Gu9Owl
>>>
>>> --- Physical volume ---
>>> PV Name /dev/sdb1
>>> VG Name vg0
>>> PV Size 8192.00 EB / not usable 8192.00 EB
>>> Allocatable yes (but full)
>>> PE Size (KByte) 131072
>>> Total PE 13386
>>> Free PE 0
>>> Allocated PE 13386
>>> PV UUID aX4eXc-5ADq-BTl2-sZzY-36kX-A0zx-bDKIQf
>>>
>>> --- Physical volume ---
>>> PV Name /dev/sdc1
>>> VG Name vg0
>>> PV Size 8192.00 EB / not usable 8192.00 EB
>>> Allocatable yes (but full)
>>> PE Size (KByte) 131072
>>> Total PE 13386
>>> Free PE 0
>>> Allocated PE 13386
>>> PV UUID fgu78M-yzS9-OPbV-2aXt-NgJP-A6dA-ZpQCkt
>>>
>>> [root@login-0-0 ~]# vgdisplay
>>> --- Volume group ---
>>> VG Name vg1
>>> System ID
>>> Format lvm2
>>> Metadata Areas 3
>>> Metadata Sequence No 2
>>> VG Access read/write
>>> VG Status resizable
>>> MAX LV 0
>>> Cur LV 1
>>> Open LV 0
>>> Max PV 0
>>> Cur PV 3
>>> Act PV 3
>>> VG Size 4.72 TB
>>> PE Size 128.00 MB
>>> Total PE 38689
>>> Alloc PE / Size 38667 / 4.72 TB
>>> Free PE / Size 22 / 2.75 GB
>>> VG UUID Qjb9Fq-o5Jy-MH1n-453l-gQqp-iqqN-49sUIS
>>>
>>> --- Volume group ---
>>> VG Name vg0
>>> System ID
>>> Format lvm2
>>> Metadata Areas 2
>>> Metadata Sequence No 4
>>> VG Access read/write
>>> VG Status resizable
>>> MAX LV 0
>>> Cur LV 1
>>> Open LV 0
>>> Max PV 0
>>> Cur PV 2
>>> Act PV 2
>>> VG Size 3.27 TB
>>> PE Size 128.00 MB
>>> Total PE 26772
>>> Alloc PE / Size 26772 / 3.27 TB
>>> Free PE / Size 0 / 0
>>> VG UUID DlYlrX-oFu7-S3rf-GVH0-5sVp-cuQh-0VGIdy
>>>
>>> [root@login-0-0 ~]# lvdisplay
>>> --- Logical volume ---
>>> LV Name /dev/vg1/lv1
>>> VG Name vg1
>>> LV UUID SNdEg6-nshz-xtzf-ml4R-jraE-ukEZ-eqK6hE
>>> LV Write Access read/write
>>> LV Status NOT available
>>> LV Size 4.72 TB
>>> Current LE 38667
>>> Segments 3
>>> Allocation inherit
>>> Read ahead sectors 0
>>>
>>> --- Logical volume ---
>>> LV Name /dev/vg0/lv0
>>> VG Name vg0
>>> LV UUID fOvYHo-jj3e-qoZK-nvU8-7yu3-z19U-siuqOP
>>> LV Write Access read/write
>>> LV Status NOT available
>>> LV Size 3.27 TB
>>> Current LE 26772
>>> Segments 2
>>> Allocation inherit
>>> Read ahead sectors 0
>>>
>>
>>
>> _______________________________________________
>> linux-lvm mailing list
>> linux-lvm@redhat.com
>> https://www.redhat.com/mailman/listinfo/linux-lvm
>> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>>
>
>
>
> --
>
> Ray Morris
> support@bettercgi.com
>
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>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [linux-lvm] moving LVMs to another machine
2011-01-14 19:54 ` [linux-lvm] " Ray Morris
@ 2011-01-16 19:01 ` Ron Johnson
0 siblings, 0 replies; 6+ messages in thread
From: Ron Johnson @ 2011-01-16 19:01 UTC (permalink / raw)
To: linux-lvm
On 01/14/2011 01:54 PM, Ray Morris wrote:
>> I did not actively deactivate any volume groups or logical volumes
>> before I made this move.
>
[snip]
>
> Since you said you "did not actively deactivate any volume groups",
> I'm assuming you did not use "vgexport" and therefore don't need to
> use "vgimport".
I read that to mean that he did not do this on the old machine:
# lvchange -an foo/bar
# vgchange -an foo
--
Famous University Professor says...
"Of course 5 years from (1992) everyone will be running free GNU on
their 200 MIPS, 64M SPARCstation-5."
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-01-16 19:01 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-01-14 19:25 [linux-lvm] moving LVMs to another machine Albert Everett
2011-01-14 19:41 ` Albert Everett
2011-01-14 19:56 ` Ray Morris
2011-01-14 20:22 ` [linux-lvm] SOLVED " Albert Everett
2011-01-14 19:54 ` [linux-lvm] " Ray Morris
2011-01-16 19:01 ` Ron Johnson
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