Hi all,
I was preparing to move data residing on a LV to a RAID5 array when the
cruel hand of irony slapped me, and one of the drives in my LV died. I have
not migrated any data off of the LV.
Here is my setup:
* Linear lvm: 80GB, 80GB, 40GB ( I think in this order also, but I"m not
100percent sure
* The 40GB died: doesn't power on, isn't detected by BIOS.
I've searched the archives, and there seems to be 2 solutions:
* Bottom up solution- get a replacement drive, do pvcreate, restore the vg
data onto the drive, run vgscan and hope
I tried this, but I can't find the UUID for the missing drive (because I
can't read off of it) so there's no way for me to assign the replacement
drive the correct UUID. I've tried using vgcfgbackup/restore (from LVM2
with -P flag) but it doesn't record the UUID for the missing drive.
* Top down solution -get device-mapper and LVM2, vgscan, vgchange -ay -P,
mount the filesystem and hope
I tried this, but the filesystem on the LV is reiserfs and it won't allow me
to mount the LV. I would try reiserfsck and other tools, but the VG is
incomplete and is only accessible read-only.
Below is the output of vgdisplay -v -P (from LVM2):
Thanks for any assistance,
Thien
-------------------------
Partial mode. Incomplete volume groups will be activated read-only.
Finding all volume groups
Finding volume group "vg_home"
2 PV(s) found for VG vg_home: expected 3
Logical volume (lv_home) contains an incomplete mapping table.
--- Volume group ---
VG Name vg_home
System ID lisa1026448546
Format lvm1
VG Access read
VG Status resizable
MAX LV 256
Cur LV 1
Open LV 0
Max PV 256
Cur PV 2
Act PV 2
VG Size 188.12 GB
PE Size 4.00 MB
Total PE 48160
Alloc PE / Size 48160 / 188.12 GB
Free PE / Size 0 / 0
VG UUID BHXFw1-6juI-h8jW-fxBQ-H7EW-ng14-6iGQX2
--- Logical volume ---
LV Name /dev/vg_home/lv_home
VG Name vg_home
LV UUID 000000-0000-0000-0000-0000-0000-000000
LV Write Access read/write
LV Status NOT available
LV Size 188.12 GB
Current LE 48160
Segments 9544
Allocation next free
Read ahead sectors 1024
--- Physical volumes ---
PV Name /dev/discs/disc1/disc
PV UUID OUcSLF-p0XM-5Qhc-qViC-hhZG-ALcl-pkdc00
PV Status allocatable
Total PE / Free PE 19540 / 0
PV Name /dev/discs/disc2/disc
PV UUID 24IIKM-aegb-RuxL-27ro-AMLZ-bU9K-XFsHGS
PV Status allocatable
Total PE / Free PE 19078 / 0
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