[linux-lvm] lvm raid failure

["Null EXE" <nullexe@gmail.com>]

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Hi everyone,


I have been running an Edgy fileserver for about 6 months now. When I came
home from work last week I found my files all inaccessible. After
investigation I found issues with my PV. I would like to recover my data and
replace the drives if possible any help is greatly appreciated!

I have one system drive and 6 storage drive, all raid1. The storage layout
is
2x160GB /dev/md0
2x250GB /dev/md1
2x250GB /dev/md2
After investigation I found problems with my lvm. pvdisplay showed:
Couldn't find device with uuid 'xjWU5M-G3WB-tZjB-Tyrk-Q7rN-Yide-1FEVh3'.

I ran the command:
sudo pvcreate --uuid "xjWU5M-G3WB-tZjB-Tyrk-Q7rN-Yide-1FEVh3" --restorefile
/etc/lvm/archive/fileserver_00006.vg /dev/md2

This seemed to recover /dev/md2. I re-ran pvdisplay and got
Couldn't find device with uuid '1ATm8s-oxKG-nz0p-z1QA-a0s4-od9T-AMZRoo'.

I figured I could run the same command on md1,
sudo pvcreate --uuid "1ATm8s-oxKG-nz0p-z1QA-a0s4-od9T-AMZRoo" --restorefile
/etc/lvm/archive/fileserver_00006.vg /dev/md1

and got the message:
Couldn't find device with uuid '1ATm8s-oxKG-nz0p-z1QA-a0s4-od9T-AMZRoo'.
Device /dev/md1 not found (or ignored by filtering).

After re-executing the above command with -vvv at the bottom of the output I
get the following message:
#device/dev-io.c:439         Opened /dev/md1 RO
#device/dev-io.c:264       /dev/md1: size is 0 sectors
#filters/filter.c:106         /dev/md1: Skipping: Too small to hold a PV
#device/dev-io.c:485         Closed /dev/md1
#pvcreate.c:81   Device /dev/md1 not found (or ignored by filtering).

Here is my pvdisplay. Again, any help is Greatly appreciated
***START***

Couldn't find device with uuid '1ATm8s-oxKG-nz0p-z1QA-a0s4-od9T-AMZRoo'.
Couldn't find device with uuid '1ATm8s-oxKG-nz0p-z1QA-a0s4-od9T-AMZRoo'.
--- Physical volume ---
PV Name /dev/md0
VG Name fileserver
PV Size 149.05 GB / not usable 0
Allocatable yes
PE Size (KByte) 4096
Total PE 38156
Free PE 9996
Allocated PE 28160
PV UUID pZV1Ff-Y7fu-S8m1-tVFn-fOMJ-VRls-fLFEov

--- Physical volume ---
PV Name unknown device
VG Name fileserver
PV Size 232.88 GB / not usable 0
Allocatable yes (but full)
PE Size (KByte) 4096
Total PE 59618
Free PE 0
Allocated PE 59618
PV UUID 1ATm8s-oxKG-nz0p-z1QA-a0s4-od9T-AMZRoo

--- Physical volume ---
PV Name /dev/md2
VG Name fileserver
PV Size 232.88 GB / not usable 0
Allocatable yes
PE Size (KByte) 4096
Total PE 59618
Free PE 9156
Allocated PE 50462
PV UUID xjWU5M-G3WB-tZjB-Tyrk-Q7rN-Yide-1FEVh3

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