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HP UX FILE SYSTEM GONE ???

Hello ,

I am using the Hp 9000/735 , os version Hp ux 9.01 . One day after a sudden power fail i am unable to get the filesystems . Out of three filesystems
1) /dev/dsk/c201d6s0 ( / root filesystem is working properly )
2) /dev/dsk/c201d4s0
3) /dev/dsk/c201d5s0
Only root is mounted , i have booted the system in single user , also upon the normal booting only / is mounted . when doing the fsck on 2 & 3 filesystems it gives :can't open
/dev/dsk/c201d4s0
fsck :
** /dev/dsk/c201d4s0 ( NO WRITE )
CANNOT READ : BLK 8
continue ? no
program terminated .
It don't even asks anything from me .
Also diskinfo gives : can't open /dev/dsk/c201d4s0 ; DEvice busy
Also when i mount the filesystems it says DEVICE BUSY .
Also when i unmount them it says already not mounted .

PLEASE HELP I AM CONFUSED WHAT TO DO , my famous tool fsck is also failing

ASKER CERTIFIED SOLUTION

Julian Parker

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raghvendra

ASKER

Hello ,
It didn't stop for the continue , it automatically says no . Yes i am having the 3 physical hard disks.

***** Here in the file /etc/mnttab *********

/dev/dsk/c201d6s0 / hfs defaults 0 1 995868306 1
/dev/dsk/c201d4s0 /user2 hfs defaults 0 2 995868329 1

***** Here is the file /etc/checklist ***********

# System /etc/checklist file. Static information about the file systems
# See checklist(4) and sam(1M) for further details on configuring devices.
/dev/dsk/c201d6s0 / hfs defaults 0 1 # Root device entry
/dev/dsk/c201d4s0 /user2 hfs rw,suid 0 2 0
/dev/dsk/c201d5s0 /user1 hfs rw,suid,quota 0 2 0

****** Here is the output from 'ioscan -f ' *******

Class H/W Path Driver H/W Status S/W Status
=======================================================
graphics 1.0.0 graph3 ok(0x577) ok
scsi 2.0.1 c700 ok(0x7071) ok
tape_drive 2.0.1.3.0 scsitape ok(0x1800202) ok
disk 2.0.1.4.0 scsi ok(0x202) ok
disk 2.0.1.5.0 scsi ok(0x202) ok
disk 2.0.1.6.0 scsi ok(0x202) ok
lan 2.0.2 lan01 ok(0x7072) ok
hil 2.0.3 hil ok(0x7073) ok
serial 2.0.4 asio0 ok(0x7075) ok
serial 2.0.5 asio0 ok(0x7075) ok
parallel 2.0.6 parallel ok(0x7074) ok
scsi 2.0.7 c700 ok(0x707c) ok
audio 2.0.8 audio ok(0x7f) ok

Julian Parker

ioscan looks OK but this can be misleading.

It's been a long time so 9.01 is a distant memory at the moment.

Can you boot single user and modify the /etc/fstab (/etc/mnttab) file just to mount root so you can get to multi user.

I don't suppose you have the support tape anywhere? you can boot of this to run more diags.

I'll have a look around to see if I can find any information.

JP

raghvendra

ASKER

Hello jools ,
Thanks a lot for your help , you was right that it was system hardware failure , we replaced the
power supplies of the disks , auctually power supplies were
working but some how there must be problem in voltages.

then they start working .

Julian Parker

glad it got fixed.