What is mean that error message?

[chae, jeong-seong]

Hi~
I doubt that the disk failure is correct or not correct.
you reply to me~


root@smp:/>vgchange -a y /dev/vg02
vgchange: Warning: Couldn't attach to the volume group physical volume "/dev/dsk/c4t2d0":
The path of the physical volume refers to a device that does not
exist, or is not configured into the kernel.
Activated volume group
vgchange: Couldn't re-synchronize stale partitions of the logical volume:
I/O error
Volume group "/dev/vg02" has been successfully changed.
root@smp:/>vgchange -a n /dev/vg02
vgchange: Warning: couldn't query physical volume "/dev/dsk/c4t2d0":
The specified path does not correspond to physical volume attached to
this volume group
vgchange: Warning: couldn't query all of the physical volumes.
vgchange: Warning: couldn't query physical volume "/dev/dsk/c4t2d0":
The specified path does not correspond to physical volume attached to
this volume group
vgchange: Warning: couldn't query all of the physical volumes.
Volume group "/dev/vg02" has been successfully change

Nothing is problem the command.
root@smp:/>ioscan -fnC disk
Class I H/W Path Driver S/W State H/W Type Description
======================================================================
disk 0 0/0/1/0.3.0 sdisk CLAIMED DEVICE HP DVD-ROM 305
/dev/dsk/c0t3d0 /dev/rdsk/c0t3d0
disk 1 0/0/1/1.15.0 sdisk CLAIMED DEVICE HP 36.4GMAN3367MC
/dev/dsk/c1t15d0 /dev/rdsk/c1t15d0
disk 2 0/0/2/1.15.0 sdisk CLAIMED DEVICE HP 36.4GMAN3367MC
/dev/dsk/c3t15d0 /dev/rdsk/c3t15d0
disk 3 0/6/2/0.0.0 sdisk CLAIMED DEVICE HP 36.4GST336706LC
/dev/dsk/c4t0d0 /dev/rdsk/c4t0d0
disk 4 0/6/2/0.1.0 sdisk CLAIMED DEVICE HP 36.4GST336706LC
/dev/dsk/c4t1d0 /dev/rdsk/c4t1d0
disk 5 0/6/2/0.2.0 sdisk CLAIMED DEVICE HP 36.4GST336706LC
/dev/dsk/c4t2d0 /dev/rdsk/c4t2d0
disk 6 0/6/2/0.3.0 sdisk CLAIMED DEVICE HP 36.4GST336706LC
/dev/dsk/c4t3d0 /dev/rdsk/c4t3d0
disk 7 0/6/2/0.4.0 sdisk CLAIMED DEVICE HP 36.4GMAN3367MC
/dev/dsk/c4t4d0 /dev/rdsk/c4t4d0
disk 8 0/6/2/0.5.0 sdisk CLAIMED DEVICE HP 36.4GST336706LC
/dev/dsk/c4t5d0 /dev/rdsk/c4t5d0
disk 9 0/6/2/0.12.0 sdisk CLAIMED DEVICE HP 36.4GST336706LC
/dev/dsk/c4t12d0 /dev/rdsk/c4t12d0
disk 10 0/6/2/0.13.0 sdisk CLAIMED DEVICE HP 36.4GATLAS10K3_36_SCA
/dev/dsk/c4t13d0 /dev/rdsk/c4t13d0

Thank you

[Zeev Schultz]

1) Check that you can see this disk in /etc/lvmtab:

"strings /etc/lvmtab | grep c4t2d0"

2) Check that you really have no I/O errors with this disk:

"dd if=/dev/rdsk/c4t2d0 of=/dev/null bs=1024k"

If both are ok, may be "vgcfgrestore" can help to restore LVM headers to this disk. By the way,its a mirror disk/ volumes?

[Steven E. Protter]

dmesg or a look at /var/adm/syslog/syslog.log will probably show a lbolt, or POWERFAIL indicating a bad disk.

It is possible there was a temporary failure or a timeout for disk response was exceeded.

SEP

[Bharat Katkar]

Hi,
The H/w path of your Disk "/dev/dsk/c4t2d0" might have been changed. Now the VG is looking for Disk "/dev/dsk/c4t2d0" but it may been changed to something else.
Did you moved/changed disk/controllers before this.

Regards,

[Devender Khatana]

Hi,

It seems the disk is faulty. Have the disk been replaced? The LE's are still marked stale on this disk confirm by "lvdisplay -v /dev/vg02/lvol*".

If the disk was replaced what and all the steps are followed after replacing the disk?

HTH,
Devender

[chae, jeong-seong]

syslog file is..

Aug 29 11:12:22 ktsmp1 vmunix: SCSI: Resetting SCSI -- lbolt: 18993, bus: 4
Aug 29 11:12:22 ktsmp1 vmunix: SCSI: Reset detected -- lbolt: 18993, bus: 4

strings /etc/lvmtab
root@smp:/>strings /etc/lvmtab
/dev/vg00
/dev/dsk/c1t15d0
/dev/dsk/c3t15d0
/dev/vg01
/dev/dsk/c4t0d0
/dev/dsk/c4t4d0
/dev/vg02
/dev/dsk/c4t2d0
/dev/dsk/c4t3d0
/dev/vg03
,>vu$
/dev/dsk/c4t1d0
/dev/dsk/c4t5d0
/dev/vg04
/dev/dsk/c4t12d0
/dev/vg05
/dev/dsk/c4t13d0

thank you~

[Zeev Schultz]

bus 4? These are c4tXd... disks? Can see with "ioscan -fnCext_bus" for "I" number 4 (second columnt from the left).

certainly you have some scsi resets on bus 4,but to confirm more check with "dd" as I wrote before.Or see in /var/adm/syslog/syslog.log for SCSI resets on specific disk and not the whole bus. I doubt its an HBA (scsi card) failure - there are another disks along this one.So more likely disk problem.If its a hot-swap disks array(jbod) could be that disk isn't seating well.

[chae, jeong-seong]

Thank you for reply..
The Arrary is DS2300 with SG.

root@smp:/>ioscan -fnCext_bus
Class I H/W Path Driver S/W State H/W Type Description
=================================================================
ext_bus 0 0/0/1/0 c720 CLAIMED INTERFACE SCSI C896 Ultra Wide Single-Ended
ext_bus 1 0/0/1/1 c720 CLAIMED INTERFACE SCSI C896 Ultra Wide Single-Ended
ext_bus 2 0/0/2/0 c720 CLAIMED INTERFACE SCSI C875 Ultra Wide Single-Ended
ext_bus 3 0/0/2/1 c720 CLAIMED INTERFACE SCSI C875 Ultra Wide Single-Ended
ext_bus 4 0/6/2/0 c720 CLAIMED INTERFACE SCSI C896 Ultra Wide LVD
ext_bus 5 0/6/2/1 c720 CLAIMED INTERFACE SCSI C896 Ultra Wide LVD

[Zeev Schultz]

did you run the dd test and if yes,was it ok?
there could have been a disk firmware issue but it would show itself in more than 'resetting scsi bus' messages in the syslog.so,again,most probably its a disk issue.you can swap it out of the ds2300 and put back,but if the disk is faulty it will come back sooner or later.

[Steven E. Protter]

If you had a temporary disk failure or pulled out a hot swap drive you would get this message, but it would clear next time you boot.

Perhaps you want to fire up mstm/cstm or xstm and test the hardware.

SEP