sam shows 11.0 boot disk "unused" after ignite tape recovery

[Paul Tibbitts]

We have an N class running 11.0. The boot disk failed and could not be seen in ioscan results run from boot media (it had been c1t6d0), and its mirror (c2t6d0) didn't "work" (could be seen in ioscan but wouldn't boot the system.) To make a long story short, we moved the c2t6d0 disk to the A slot such that it became the c1t6d0 disk, booted from our make_tape_recovery tape, and did an unattended recovery.

We also installed a new disk into the c2t6d0 slot.

We haven't reconfigured the mirroring yet, but booted from c1t6d0 after the recovery (it rebooted automatically) and the computer is running ok, except...

SAM says the c1t6d0 disk, which is now the root/boot disk running the system, is "unused" and not a member of any volume group. Pvdisplay (and related LMV *display command) results are as would be expected for a LVM disk.

We have recovered from make_recovery tapes before but never noticed this (might have happened, but we didn't notice.) Any information will be appreciated.

Paul

[Yang Qin_1 · Accepted solution]

Can you check /etc/lvmtab with "strings /etc/lvmtab" and see which disk is configured in vgoo in that file?

[Robert-Jan Goossens]

Paul,

Could you post the resuls from following commands

# echo "boot_string/S" |adb /stand/vmunix /dev/mem

# lvlnboot -v

# ioscan -fnCdisk

# swlist -l patch | grep -i sam

Regards,
Robert-Jan

[Rashid Hamid]

Hi Paul

make a copy of your /etc/lvmtab and run try run vgscan.

[Paul Tibbitts]

Below is output, edited to remove things like SAN disks. Thanks.

root@gserver:/> echo "boot_string/S" | adb /stand/vmunix /dev/mem
Error from elf64_getehdr(application core file)
Not an Elf file: No Elf header
boot_string:
boot_string: disk(0/0/2/0.6.0.0.0.0.0;0)/stand/vmunix
root@gserver:/> lvlnboot -v
lvlnboot: Couldn't query volume group "/dev/vg00".
Possible error in the Volume Group minor number; Please check and make sure the group minor number is unique.
root@gserver:/> ioscan -fnC disk
Class I H/W Path Driver S/W State H/W Type Description
================================================================================
disk 0 0/0/1/0.2.0 sdisk CLAIMED DEVICE HP DVD-ROM 6x/32x
/dev/dsk/c0t2d0 /dev/rdsk/c0t2d0
disk 1 0/0/2/0.6.0 sdisk CLAIMED DEVICE SEAGATE ST39102LC
/dev/dsk/c1t6d0 /dev/rdsk/c1t6d0
disk 2 0/0/2/1.6.0 sdisk CLAIMED DEVICE SEAGATE ST39102LC
/dev/dsk/c2t6d0 /dev/rdsk/c2t6d0
root@gserver:/> swlist -l patch |grep -i sam
# AudioDevKit.AUDIO-FILES B.11.00.01 Sample files
# CIFS-Server A.01.02 CIFS/9000 (Samba) File and Print Services
# CIFS-Server.CIFS-ADMIN A.01.02 CIFS/9000 (Samba) Web Administration Tool (SWAT)
# CIFS-Server.CIFS-DOC A.01.02 Samba Documentation (original)
# PHCO_19047 1.0 cumulative SAM/ObAM patch
# PHCO_19047.SAM 1.0 SystemAdmin.SAM committed
# PHCO_19047.SAM-HELP 1.0 SystemAdmin.SAM-HELP committed
# PHCO_21187 1.0 cumulative SAM/ObAM patch
# PHCO_21187.SAM 1.0 SystemAdmin.SAM committed
# PHCO_21187.SAM-HELP 1.0 SystemAdmin.SAM-HELP committed
# PHCO_28125 1.0 cumulative SAM/ObAM patch
# PHCO_28125.SAM 1.0 SystemAdmin.SAM committed
# PHCO_28125.SAM-ENG-A-MAN 1.0 SystemAdmin.SAM-ENG-A-MAN committed
# PHCO_28125.SAM-HELP 1.0 SystemAdmin.SAM-HELP committed
# PHSS_20149 1.0 SAM Kernel Tunable Parameter Sets
# PHSS_20149.SAM 1.0 fr=B.11.00 committed
# PHSS_20275.DDX-SAM 1.0 Xserver.DDX-SAM committed
# PHSS_20736 1.0 LIBISAMSTUB patch
# PHSS_21472.DDX-SAM 1.0 Xserver.DDX-SAM committed
# PHSS_31280.DDX-SAM B.11.00.27 Xserver.DDX-SAM committed
# SystemAdmin.SAM B.11.00 System Administration Manager
PHCO_19047.SAM 1.0 SystemAdmin.SAM committed
PHSS_20149.SAM 1.0 fr=B.11.00 committed
PHCO_21187.SAM 1.0 SystemAdmin.SAM committed
PHCO_28125.SAM 1.0 SystemAdmin.SAM committed
# SystemAdmin.SAM-ENG-A-MAN B.11.00 SAM-ENG-A-MAN
PHCO_28125.SAM-ENG-A-MAN 1.0 SystemAdmin.SAM-ENG-A-MAN committed
# SystemAdmin.SAM-HELP B.11.00 On-line Help for System Adminstration Manager
PHCO_19047.SAM-HELP 1.0 SystemAdmin.SAM-HELP committed
PHCO_21187.SAM-HELP 1.0 SystemAdmin.SAM-HELP committed
PHCO_28125.SAM-HELP 1.0 SystemAdmin.SAM-HELP committed
# Xserver.DDX-SAM B.11.00 X Server/SAM X0Screens Help Files
PHSS_20275.DDX-SAM 1.0 Xserver.DDX-SAM committed
PHSS_21472.DDX-SAM 1.0 Xserver.DDX-SAM committed
PHSS_31280.DDX-SAM B.11.00.27 Xserver.DDX-SAM committed
root@gserver:/> strings /etc/lvmtab
/dev/vg00
/dev/dsk/c1t6d0
/dev/dsk/c2t6d0
/dev/vg01
/dev/dsk/c8t0d0
/dev/dsk/c8t0d1
/dev/dsk/c8t0d2
/dev/dsk/c8t0d3
/dev/dsk/c8t0d4
/dev/dsk/c8t0d5
/dev/dsk/c8t0d6

root@gusher:/ms0101>

[Robert-Jan Goossens]

root@gserver:/> lvlnboot -v
lvlnboot: Couldn't query volume group "/dev/vg00".
Possible error in the Volume Group minor number; Please check and make sure the group minor number is unique.

# ll /dev/*/group

Robert-Jan

[Yang Qin_1]

run "vgcfgrestore -n /dev/vg00 /dev/rdsk/c2t6d0" If you succeed, then try "lvlnboot -v
", vgdisplay -v vg00|more, lvdisplay -v /dev/vg00/lvol1|more ...

[Paul Tibbitts]

I actually remade the group device files, just to be sure, but they were and now are:

crw-r--r-- ... 64 0x000000 /dev/vg00/group
crw-r--r-- ... 64 0x010000 /dev/vg01/group

[Paul Tibbitts]

Nothing I tried actually resolved the problem, but I appreciate the replies. During a maintenance window I redid the recovery from the ignite tape, put in the more recent updates from backup tapes, and now lvm is working properly.

Paul