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[linux-lvm] LVM and MD disagree about PV size



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Kernel: 2.4.20, stock lvm, debian system with xfs patches.

MD shows the right size of around 80G, LVM thinks the PV is much
larger ().

1) How can I fix this without destroying the data?
2) How can I avoid this in the future.

I still have a spare 45G drive in the system, so I can add it as a PV,
pvmove the data, destroy md6, recreate it, pvmove the data back and
see that all is ok.

In fact, I think I'll just go ahead and do so...

mdadm --detail /dev/md/6:

/dev/md/6:
        Version : 00.90.00
  Creation Time : Sun Dec 28 17:33:02 2003
     Raid Level : raid1
     Array Size : 80003584 (76.30 GiB 81.92 GB)
    Device Size : 80003584 (76.30 GiB 81.92 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 6
    Persistence : Superblock is persistent

    Update Time : Sun Dec 28 17:33:02 2003
          State : dirty, no-errors
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0


    Number   Major   Minor   RaidDevice State
       0      33        3        0      active sync   /dev/ide/host2/bus0/target0/lun0/part3
       1      57        3        1      active sync   /dev/ide/host4/bus1/target0/lun0/part3
           UUID : 8c24286e:6f758b5a:8d6c9575:d22731fa
         Events : 0.1


pvdisplay /dev/md/6:

- --- Physical volume ---
PV Name               /dev/md/6
VG Name               shaktivg
PV Size               148.80 GB [312062464 secs] / NOT usable 4.31 MB [LVM: 272 KB]
PV#                   3
PV Status             available
Allocatable           yes
Cur LV                10
PE Size (KByte)       4096
Total PE              38092
Free PE               28645
Allocated PE          9447
PV UUID               jeVyqI-g2RE-xHF6-Nfo5-rT40-rGYK-65iJZp

- -- 
- -rupa

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