disk is not responding

[Zulfikri]

Hi all,

I'm running 10.20 on HP900 K360 and recently I've been getting this error/message in syslog

Nov 13 09:49:39 echp2 last message repeated 3 times
Nov 13 09:51:39 echp2 vmunix: Disk at 10/4/12.5.0 is not responding. Check device, power, and cables.

I could not even run ioscan -fnC disk

Any ideas what is going on?

Many thanks in advance

rgds,

Zulfikri

[Patrick Wallek]

It is entirely possible, even probable, that this disk is going bad. I would look to get it replaced as soon as possible.

If you can't run ioscan, then that sounds like it may be an OS disk as well, which isn't good.

If you have a hardware support contract, call HP or whomever provides your service.

[Michael Steele_2 · Accepted solution]

K360, my fav.

Here's some things to try.

# ioscan -fnkC disk

Note the status should be CLAIMED. Report anything else. If 'NO_HW' then disk is bad or controller is bad.

# dd if=/dev/dsk/cXtYdZ of=/dev/null count=1000000
# Count to 6 or 7
# control c

Note 1: If the prompt hangs then disk is bad. If hot pluggable the pull out the disk to get back the prompt.

Note 2: Count has to be big, like 1000000, or you'll just get cache.

# diskinfo -v /dev/rdsk/cXtYdZ

Check product number, size, firmware version, etc.

Call HP if dead or replace yourself.

[Steven E. Protter]

Try the script I'm attaching, it will help you identify the dead disk if its dropped off ioscan.

SEP

[Zulfikri]

I think the error is on /dev/vglock. When I ran vgdisplay -v /dev/vglock, it gave the below:-

/>vgdisplay -v /dev/vglock
vgdisplay: Volume group not activated.
vgdisplay: Cannot display volume group "/dev/vglock".

[Michael Steele_2]

The vg is failing to activate because of a bad disk. (* Disks devices have to work before volume groups. *)

Attach :

# strings /etc/lvmtab

# vgcfgrestore -f /etc/lvmconf/vglock.conf -l

What disks in /dev/vglock? One disk? 10/4/12.5?

What's your cdrom HW path?

[Norman_21]

Micheal is right!
Try to enable the Volume group:

# vgchange -a y /dev/vglock
Aslo, as indicated by Micheal do a
# strings /etc/lvmtab
and post the results here.

[Zulfikri]

Hi,

What does vgcfgrestore -f /etc/lvmconf/vglock.conf -l and vgchange -a y /dev/vglock do? Any impact?
It's a prod machine and I'm kinda a newbie.

I ran ioscan -fnCk disk and attached is the output.

I'm not sure if it's one disk or not.

Many thanks in advance

rgds,

Zul

[Zulfikri]

Hi,

I ran #vgchange -a y /dev/vglock
vgchange: Warning: Couldn't attach to the volume group physical volume "/dev/dsk/c2t5d0":
The path of the physical volume refers to a device that does not
exist, or is not configured into the kernel.
vgchange: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
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: Couldn't activate volume group "/dev/vglock":
Quorum not present, or some physical volume(s) are missing.

Many thanks in advance

rgds,

Zul

[Zulfikri]

Hi,

#vgcfgrestore -f /etc/lvmconf/vglock.conf -l
Volume Group Configuration information in "/etc/lvmconf/vglock.conf"
VG Name /dev/vglock
---- Physical volumes : 1 ----
/dev/rdsk/c2t5d0 (Non-bootable)

Many thanks in advance

rgds,

Zul

[Michael Steele_2]

THIS IS A BAD DISK.

HAVE YOU RUN 'diskinfo -v /dev/rdsk/c2t5d0' yet?

IT SHOULD LOOK SOMETHING LIKE THIS:

(* note: This is incomplete *)

vendor: SEAGATE
product id: ST34573WC
type: direct access
size: 4096 Kbytes
bytes per sector: 0
rev level: HP05
blocks per disk: 0
ISO version: 0
ECMA version: 0
ANSI version: 2
removable media: no
response format: 2
(Additional inquiry bytes: (32)20 (33)20 (34)20 (35)20 (36)20 (37)20 (38)20 (
9)0 (40)0 (41)0 (42)0 (43)0 (44)0 (45)0 (46)0 (47)0 (48)0 (49)0 (50)0 (51)0 (52
0 (53)0 (54)0 (55)0 (56)0 (57)0 (58)0 (59)0 (60)0 (61)0 (62)0 (63)0 (64)0 (65)0
(66)0 (67)0 (68)0 (69)0 (70)0 (71)0 (72)0 (73)0 (74)0 (75)0 (76)0 (77)0 (78)0 (
9)0 (80)0 (81)0 (82)0 (83)0 (84)0 (85)0 (86)0 (87)0 (88)0 (89)0 (90)0 (91)0 (92
43 (93)6f (94)70 (95)79 (96)72 (97)69 (98)67 (99)68 (100)74 (101)20 (102)28 (10
)63 (104)29 (105)20 (106)31 (107)39 (108)39 (109)37 (110)20 (111)53 (112)65 (11
)61 (114)67 (115)61 (116)74 (117)65 (118)20 (119)41 (120)6c (121)6c (122)20 (12
)0 (124)0 (125)0 (126)0 (127)0 (128)0 (129)0 (130)0 (131)0 (132)0 (133)0 (134)0
(135)0 (136)0 (137)0 (138)0 )

[PVR]

Hi Zul,

Have u tried the dd command on c2t5d0 as suggested by Michael
It is the best to way to find out whether the disk is bad or not.

If it hangs disk in between u can confirm that the disk is bad. Controller might be Ok since other disks are also attached to the same controller.

[Norman_21]

What does vgcfgrestore -f /etc/lvmconf/vglock.conf -l and vgchange -a y /dev/vglock do? Any impact?

In response to your above questions.

vgcfgrestore is an LVM command to restore the Volume Group configurations!

vgchange is also a LVM command to activate/deactivate a Volume Group!

The OS saves the LVM configuration in the /etc/lvmconf/vglock but you can always run the following command to create a map file which will help to restore any vm quickly. Make sure you are in the single user mode and make sure you specify the -p option, without the -p option you'll wipe off
the volume group.
# vgexport -p -v -s -m /etc/lvlock.map /dev/lvlock

this is an example.You may repeat the same for each volume group..
Please get back to us with the
# diskinfo -v /dev/rdsk/c2t5d0

Good luck

[Zulfikri]

Hi all,

Thanks for the help.

My K360 crashed on Sunday and I did not see any vmunix:Disk at 10/4/12.5.0 error anymore.

I could do diskinfo and got the following output. Any other command to verify the disk?

diskinfo -v /dev/rdsk/c2t5d0
SCSI describe of /dev/rdsk/c2t5d0:
vendor: SEAGATE
product id: ST34573WC
type: direct access
size: 4194157 Kbytes
bytes per sector: 512
rev level: HP05
blocks per disk: 8388314
ISO version: 0
ECMA version: 0
ANSI version: 2
removable media: no
response format: 2
(Additional inquiry bytes: (32)4e (33)35 (34)36 (35)33 (36)35 (37)31 (38)31 (39)0 (40)0 (41)0 (42)0 (43)0 (44)0 (45)0 (46)0 (47)0 (48)0 (49)0 (50)0 (51)0 (52)0 (53)0 (54)0 (55)0 (56)0 (57)0 (58)0 (59)0 (60)0 (61)0 (62)0 (63)0 (64)0 (65)0 (66)0 (67)0 (68)0 (69)0 (70)0 (71)0 (72)0 (73)0 (74)0 (75)0 (76)0 (77)0 (78)0 (79)0 (80)0 (81)0 (82)0 (83)0 (84)0 (85)0 (86)0 (87)0 (88)0 (89)0 (90)0 (91)0 (92)43 (93)6f (94)70 (95)79 (96)72 (97)69 (98)67 (99)68 (100)74 (101)20 (102)28 (103)63 (104)29 (105)20 (106)31 (107)39 (108)39 (109)37 (110)20 (111)53 (112)65 (113)61 (114)67 (115)61 (116)74 (117)65 (118)20 (119)41 (120)6c (121)6c (122)20 (123)0 (124)7f (125)fe (126)da (127)0 (128)0 (129)2 (130)0 (131)0 (132)0 (133)0 (134)0 (135)0 (136)0 (137)0 (138)0 )

[malay boy]

well you could do a dd command to verify you disk are ok.Or you could use mstm to do a exercise on the disk..

dd command :

dd if= of=/dev/null

after a while interrupt the with control D and see whether the output.

or used mstm.

As a root type mstm .go to tool->exercise-> run

good luck...

p/s: are you from malaysia...

if yes,where are you working ???..

regards
mB

[Michael Steele_2]

Your server crashed. The 'q4' procedure is attached to this posting. Please post the results or email to HP directly. Also, please attach the LOGTOOL report in your next response:

STM > TOOLS > UTILITY > RUN > LOGTOOL > FILE > VIEW > RAW SUMMARY