HARD DISK FAILED

[shridhar_1]

please provide valuable suggestions

any user is not allowed to login except root

bdf, vmstat, swpinfo outputs are ok

OS : HP UX 10.20

# tail /var/adm/syslog/syslog.log
Dec 25 22:23:44 vmunix:
Dec 25 22:23:44 vmunix: SCSI: Unexpected Disconnect -- lbolt: 504689, de
v: 1f002000, io_id: 57836
Dec 25 22:23:44 vmunix: LVM: vg[5]: pvnum=0 (dev_t=0x1f002000) is POWERF
AILED
Dec 25 22:23:44 vmunix: LVM: PV 0 has been returned to vg[5].


# dd if=/dev/dsk/c0t2d0 of=/dev/null bs=1024
8886762+0 records in
8886762+0 records out

thanks

shri

[Yogeeraj_1]

hi,

does the output of:

ioscan -fnC disk


look ok?

kind regards
yogeeraj

[Shameer.V.A]

check with ioscan & diskinfo that whether the disk is still active. You may change or refix the connections of your hard disk , which is having problem.
Please post the output of dmesg, ioscan -fnC disk, diskinfo

shameer

[shridhar_1]

I m able to take tar backup of the whole disk yesterday at the same time ie Dec 25 22:15 to 23:45

ioscan output shows the disk is claimed

thanks

shridhar

[Devender Khatana · Accepted solution]

Hi,

This are the initial symptoms of a disk failure ? Removing the disk mentioned shall remove the I/O problems and shall rectofy the problem. There will not be any problem in backup if the disk is mirrored.

It is time to replace the disk and if not mirrored restore backup after replacing disk.

Best Regards,
Devender

[shridhar_1]

thanks to all

I am planning to change the
harddisk

please tell me why my users were
not able to login the system

regards

shri

[Henk Geurts]

it looks like the machine is in " single user mode" .(only root has access)
you can see it with command:
who -r
which will show run level.

regards..

[shridhar_1]

server is not in single user mode

this problem is intermitant

user sometimes not able to login

thanks


shri

[Arunvijai_4]

Hello Shri, Start inetd in logging mode #inetd -l and check /var/adm/syslog/syslog.log for more details about what telnetd did during a user tried to logon to the system.

-Arun

[Devender Khatana]

Hi,

Apart from disk these could be related to the cable /Termination as well. Try fixing the cables / connectors to the disk device mentioned. If the problem still persists I would recomend to check the whole disk for read atleast using dd. That will be the best way to verify the disk. The problem could be intermediant as the problem occurs only when accessing a particular portion of disk.

HTH,
Devender

[shridhar_1]

THANKS

shri