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HP UX FILE SYSTEM GONE ???

Posted on 2001-07-19
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Last Modified: 2013-12-16
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
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Question by:raghvendra
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Accepted Solution

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jools earned 120 total points
ID: 6301302
This could well be a hardware failure!!

What does ioscan -fnCdisk produce? shoud be OK but good to check.

Pls post your /etc/fstab file if possible so we can see what filesystems are on the other disks.

Have you tried "continue ? yes"

fuser may show what process is using the disk (if any)
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Author Comment

by:raghvendra
ID: 6308009
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
                                                   
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LVL 19

Expert Comment

by:jools
ID: 6308887
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
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Author Comment

by:raghvendra
ID: 6311228
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 .
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LVL 19

Expert Comment

by:jools
ID: 6311250
glad it got fixed.

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