* [linux-lvm] Lost lost logical volume on problematic LVM
@ 2015-10-23 18:47 Anton Bizzarri
0 siblings, 0 replies; only message in thread
From: Anton Bizzarri @ 2015-10-23 18:47 UTC (permalink / raw)
To: linux-lvm
[-- Attachment #1: Type: text/plain, Size: 7075 bytes --]
Hello, I am trying this list as I wasn't able to get much assistance on
another lace.
We had a LVM made up of 4 disks and lost a drive. I pulled the drive and
replaced it and then tried to repair but then when I tried to recover it,
it turned out it was a striped volume. (Its not my server! Never thought
they would put the data on a striped volume).
So I returned the original drive back into the same slot to see if there
was a way to recover the data.
This is lvm2 2.02.95-8
The drive that failed was /dev/sdc. When I put in back in it magically
started working. I want to see if its possible to try to recover the data
because all the drives are actually still in the exact same slots. The
main issue is it is not finding the logical volume anymore.
Any help appreciated.
AB
Below are my logs.
/# pvscan -v
Wiping cache of LVM-capable devices
Wiping internal VG cache
Walking through all physical volumes
PV /dev/sdb VG data lvm2 [465.76 GiB / 465.76 GiB free]
PV /dev/sdd VG data lvm2 [465.76 GiB / 465.76 GiB free]
PV /dev/sde VG data lvm2 [465.76 GiB / 465.76 GiB free]
PV /dev/sdf VG data lvm2 [465.76 GiB / 465.76 GiB free]
PV /dev/sdc VG data lvm2 [465.76 GiB / 465.76 GiB free]
Total: 5 [2.27 TiB] / in use: 5 [2.27 TiB] / in no VG: 0 [0 ]
:/# vgscan -v
Wiping cache of LVM-capable devices
Wiping internal VG cache
Reading all physical volumes. This may take a while...
Finding all volume groups
Finding volume group "data"
Found volume group "data" using metadata type lvm2
/# lvscan -v
Finding all logical volumes
I have a file in the archive folder /etc/lvm/archive that is from the
morning before I ran "vgreduce --removemissing --force data"
Is there any way to restore the metadata? Below is the contents of archive
file.
# Generated by LVM2 version 2.02.95(2) (2012-03-06): Thu Oct 22 09:44:12
2015
contents = "Text Format Volume Group"
version = 1
description = "Created *before* executing 'vgreduce --removemissing --force
data'"
creation_host = "" # Linux 3.2.0-4-amd64 #1 SMP Debian 3.2.68-1+deb7u5
x86_64
creation_time = 1445521452 # Thu Oct 22 09:44:12 2015
data {
id = "0UcXlh-1lXG-udrp-T6QJ-fqMt-G5mz-mgpLmN"
seqno = 6
format = "lvm2" # informational
status = ["RESIZEABLE", "READ", "WRITE"]
flags = []
extent_size = 8192 # 4 Megabytes
max_lv = 0
max_pv = 0
metadata_copies = 0
physical_volumes {
pv0 {
id = "mKQGfL-Fs0C-bRIv-rcKT-jbWs-7olM-R2VCCw"
device = "/dev/sdb" # Hint only
status = ["ALLOCATABLE"]
flags = []
dev_size = 976773168 # 465.762 Gigabytes
pe_start = 384
pe_count = 119234 # 465.758 Gigabytes
}
pv1 {
id = "KLL51K-SwV9-6VU6-9ulL-DOJy-L9uJ-T5k43a"
device = "unknown device" # Hint only
status = ["ALLOCATABLE"]
flags = ["MISSING"]
dev_size = 976773168 # 465.762 Gigabytes
pe_start = 384
pe_count = 119234 # 465.758 Gigabytes
}
pv2 {
id = "98S7nn-R4sG-OMBc-HR9Y-kHPM-Du8q-ZBNJ3c"
device = "/dev/sdd" # Hint only
dev_size = 976773168 # 465.762 Gigabytes
pe_start = 384
pe_count = 119234 # 465.758 Gigabytes
}
pv3 {
id = "d1CHzd-91uQ-7c0X-XA02-0Tlh-bBtv-rusTsj"
device = "/dev/sde" # Hint only
status = ["ALLOCATABLE"]
flags = []
dev_size = 976773168 # 465.762 Gigabytes
pe_start = 384
pe_count = 119234 # 465.758 Gigabytes
}
pv4 {
id = "vK0cGK-zz71-rpGC-IcP3-gsKU-EHjx-fY70SB"
device = "/dev/sdf" # Hint only
status = ["ALLOCATABLE"]
flags = []
dev_size = 976773168 # 465.762 Gigabytes
pe_start = 384
pe_count = 119234 # 465.758 Gigabytes
}
}
logical_volumes {
home {
id = "DM6HzG-mgeC-Hj4M-MyKk-k8UT-ZjHU-t74qTe"
status = ["READ", "WRITE", "VISIBLE"]
flags = []
segment_count = 5
segment1 {
start_extent = 0
extent_count = 119234 # 465.758 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv0", 0
]
}
segment2 {
start_extent = 119234
extent_count = 119234 # 465.758 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv1", 0
]
}
segment3 {
start_extent = 238468
extent_count = 119234 # 465.758 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv2", 0
]
}
segment4 {
start_extent = 357702
extent_count = 119234 # 465.758 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv3", 0
]
}
segment5 {
start_extent = 476936
extent_count = 118131 # 461.449 Gigabytes
type = "striped"
stripe_count = 1 # linear
stripes = [
"pv4", 0
]
}
}
}
}
---
[-- Attachment #2: Type: text/html, Size: 11322 bytes --]
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2015-10-23 18:48 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-10-23 18:47 [linux-lvm] Lost lost logical volume on problematic LVM Anton Bizzarri
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).