disk missing or F.S. corrupted

[NDO]

Hi,

I am having a problem with a certain file system. I am running hp-ux 11.23 on rx4640, and after a reboot, a file system cannot be mounted. This is what I get when I try to check:

#mount /dev/vg01/lvol7  /data7
vxfs mount: /dev/vg01/lvol7 is corrupted. needs checking

when I do fsck:

fsck -F vxfs -o full -y /dev/vg01/lvol7
file system is larger than device
vxfs fsck: cannot initialize aggregate
file system check failure, aborting ...

But when I do vgdisplay, the output tells me that I have one disk missing from Cur PV and Act PV.

--- Volume groups ---
VG Name                     /dev/vg01
VG Write Access             read/write
VG Status                   available
Max LV                      250
Cur LV                      7
Open LV                     7
Max PV                      16
Cur PV                      9
Act PV                      8
Max PE per PV               63999
VGDA                        16
PE Size (Mbytes)            16

But when I do ioscan -fnC disk, I dont see any UNCLAIMED or NO_HW problem.

Please can somebody help?

F.R.

[rariasn]

Hi:

# vgdsiplay -v vg01

Look for "Physical volumes" information.

rgs,

[NDO]

Hi!

Sorry I dont know what you mean:

vgdisplay -v /dev/vg01
--- Volume groups ---
VG Name                     /dev/vg01
VG Write Access             read/write
VG Status                   available
Max LV                      250
Cur LV                      7
Open LV                     7
Max PV                      16
Cur PV                      9
Act PV                      8
Max PE per PV               63999
VGDA                        16
PE Size (Mbytes)            16
Total PE                    271455
Alloc PE                    213847
Free PE                     57608
Total PVG                   2
Total Spare PVs             0
Total Spare PVs in use      0

   --- Logical volumes ---
   LV Name                     /dev/vg01/lvol1
   LV Status                   available/syncd
   LV Size (Mbytes)            372000
   Current LE                  23250
   Allocated PE                23250
   Used PV                     2

   LV Name                     /dev/vg01/lvol2
   LV Status                   available/syncd
   LV Size (Mbytes)            381952
   Current LE                  23872
   Allocated PE                23872
   Used PV                     3

   LV Name                     /dev/vg01/lvol3
   LV Status                   available/syncd
   LV Size (Mbytes)            372000
   Current LE                  23250
   Allocated PE                23250
   Used PV                     2

   LV Name                     /dev/vg01/lvol4
   LV Status                   available/syncd
   LV Size (Mbytes)            400000
   Current LE                  25000
   Allocated PE                25000
   Used PV                     2

   LV Name                     /dev/vg01/lvol15
   LV Status                   available/syncd
   LV Size (Mbytes)            381952
   Current LE                  23872
   Allocated PE                23872
   Used PV                     4

   LV Name                     /dev/vg01/lvol6
   LV Status                   available/syncd
   LV Size (Mbytes)            921600
   Current LE                  57600
   Allocated PE                57600
   Used PV                     2

   LV Name                     /dev/vg01/lvol7
   LV Status                   available/syncd
   LV Size (Mbytes)            995280
   Current LE                  62205
   Allocated PE                62205
   Used PV                     4

   --- Physical volumes ---
   PV Name                     /dev/dsk/c4t0d1
   PV Name                     /dev/dsk/c9t0d1  Alternate Link
   PV Name                     /dev/dsk/c13t0d1 Alternate Link
   PV Name                     /dev/dsk/c18t0d1 Alternate Link
   PV Status                   available
   Total PE                    63991
   Free PE                     0
   Autoswitch                  On

   PV Name                     /dev/dsk/c4t0d2
   PV Name                     /dev/dsk/c9t0d2  Alternate Link
   PV Name                     /dev/dsk/c13t0d2 Alternate Link
   PV Name                     /dev/dsk/c18t0d2 Alternate Link
   PV Status                   available
   Total PE                    25596
   Free PE                     0
   Autoswitch                  On

   PV Name                     /dev/dsk/c43t0d2
   PV Name                     /dev/dsk/c42t0d2 Alternate Link
   PV Status                   available
   Total PE                    45434
   Free PE                     0
   Autoswitch                  On

   PV Name                     /dev/dsk/c42t0d1
   PV Status                   available
   Total PE                    45434
   Free PE                     0
   Autoswitch                  On

   PV Name                     /dev/dsk/c4t0d3
   PV Name                     /dev/dsk/c9t0d3  Alternate Link
   PV Name                     /dev/dsk/c13t0d3 Alternate Link
   PV Name                     /dev/dsk/c18t0d3 Alternate Link
   PV Status                   available
   Total PE                    28795
   Free PE                     0
   Autoswitch                  On

   PV Name                     /dev/dsk/c4t0d4
   PV Status                   available
   Total PE                    2559
   Free PE                     0
   Autoswitch                  On

   PV Name                     /dev/dsk/c4t0d5
   PV Status                   available
   Total PE                    2047
   Free PE                     9
   Autoswitch                  On

   PV Name                     /dev/dsk/c43t0d5
   PV Status                   available
   Total PE                    57599
   Free PE                     57599
   Autoswitch                  On

   --- Physical volume groups ---
   PVG Name                    PVG0
   PV Name                     /dev/dsk/c4t0d1
   PV Name                     /dev/dsk/c9t0d1
   PV Name                     /dev/dsk/c13t0d1
   PV Name                     /dev/dsk/c18t0d1
   PV Name                     /dev/dsk/c4t0d2
   PV Name                     /dev/dsk/c9t0d2
   PV Name                     /dev/dsk/c13t0d2
   PV Name                     /dev/dsk/c18t0d2

   PVG Name                    NETAPP
   PV Name                     /dev/dsk/c43t0d2

F.R.

[rariasn]

Hi F.R.:

Verify /etc/lvmpvg file.

# man lvmpvg

Rgs,

[NDO]

Hi

There are 8 disks in /etc/lvmpvg under vg01, as opposed to the output of vgdisplay -v /dev/vg01 that shows 9. So are you saying that I should edit this file and add one more disk?

 #more /etc/lvmpvg
VG      /dev/vg01
PVG     PVG0
/dev/dsk/c4t0d1
/dev/dsk/c9t0d1
/dev/dsk/c13t0d1
/dev/dsk/c18t0d1
/dev/dsk/c4t0d2
/dev/dsk/c9t0d2
/dev/dsk/c13t0d2
/dev/dsk/c18t0d2
PVG     NETAPP
/dev/dsk/c43t0d2
VG      /dev/vg00
PVG     NETAPP
/dev/dsk/c43t0d0
/dev/dsk/c42t0d0

F.R. (Fernando)

[NDO]

And the missing disk in /etc/lvmpvg which is /dev/dsk/c43t0d5, is empty according to:

#pvdisplay -v /dev/dsk/c43t0d5 | more
--- Physical volumes ---
PV Name                     /dev/dsk/c43t0d5
VG Name                     /dev/vg01
PV Status                   available
Allocatable                 yes
VGDA                        2
Cur LV                      0
PE Size (Mbytes)            16
Total PE                    57599
Free PE                     57599
Allocated PE                0
Stale PE                    0
IO Timeout (Seconds)        default
Autoswitch                  On

   --- Physical extents ---
   PE    Status   LV                 LE
   00000 free                        00000
   00001 free                        00000
   00002 free                        00000
   00003 free                        00000
   00004 free                        00000
   00005 free                        00000

So, will I be able to recover?

F.R.

[rariasn]

Hi Fernando: Verify disk vg00 in /etc/lvmtab # strings /etc/lvmtab Verify /dev/vg01/lvol7 disks # lvdisplay -v /dev/g01/lvol7 rgs,

[rariasn]

Hi Fernando: Verify disks vg00 in /etc/lvmtab # strings /etc/lvmtab Verify /dev/vg01/lvol7 disks # lvdisplay -v /dev/g01/lvol7 rgs,

[NDO]

Hi

This is the output of strings /etc/lvmtab:

#strings /etc/lvmtab
/dev/vg00
/dev/dsk/c2t1d0s2
/dev/dsk/c43t0d0
/dev/dsk/c42t0d0
/dev/vg01
/dev/dsk/c4t0d1
/dev/dsk/c9t0d1
/dev/dsk/c13t0d1
/dev/dsk/c18t0d1
/dev/dsk/c4t0d2
/dev/dsk/c9t0d2
/dev/dsk/c13t0d2
/dev/dsk/c18t0d2
/dev/dsk/c43t0d2
/dev/dsk/c42t0d2
/dev/dsk/c42t0d1
/dev/dsk/c4t0d3
/dev/dsk/c9t0d3
/dev/dsk/c13t0d3
/dev/dsk/c18t0d3
/dev/dsk/c4t0d4
/dev/dsk/c4t0d5
/dev/dsk/c43t0d5
/dev/vg02
/dev/dsk/c43t0d3
/dev/dsk/c42t0d3

I am worried that disk /dev/dsk/c43t0d5 is empty from the output of pvdisplay.....

regards

Fernando

[rariasn]

Hi Fernando:

# lvdisplay -v /dev/vg01/lvol7 

/dev/dsk/c43t0d5 show "0" lvols

rgs,