topic Re: Disk read Error in Operating System - HP-UX

Disk read Error

zenari — Wed, 27 May 2009 07:22:58 GMT

Hi,

The cstm info command returns the following error log on my SCSI disk.
Please could you tell me wether the read and write errors are critical.

Product Id: ST336607LC Vendor: HP 36.4G
Device Type: SCSI Disk Firmware Rev: HPC4
Device Qualifier: HP36.4GST336607LC Logical Unit: 0
Serial Number: 3JA722LH000074297A4L
Capacity (M Byte): 34732.89
Block Size: 512
Max Block Address: 71132959
Smart Enabled: TRUE
Error Logs
Read Errors: 44
Buffer Overruns: N/A
Read Reverse Errors: N/A
Buffer Underruns: N/A
Write Errors: 128
Non-Medium Errors: 0
Verify Errors: 0

regards,
olivier

Re: Disk read Error

Michal Kapalka (mikap) — Wed, 27 May 2009 07:29:36 GMT

Hi,

in my opinion, i will relace the HDD immediately.

this are a errors on HW level ( Smart Errors )

mikap

Re: Disk read Error

avizen9 — Wed, 27 May 2009 07:32:31 GMT

Hello Looks hardware error,

if this Hdd use for critical business server should replace it Immediately, thanks,

Re: Disk read Error

Ganesan R — Wed, 27 May 2009 07:32:39 GMT

Hi,

Do you get any i/o errors from the disk anywhere other than cstm info?

You can use dd to verify the disk integrity

#dd if=/dev/rdsk/c1t5d0 of=/dev/null bs=1024k

The above command will read the entire disk and produce the output. It will give error if any bad sectors are there.

Re: Disk read Error

Jozef_Novak — Wed, 27 May 2009 07:33:31 GMT

This may be an early indication of disk failure. It is always better to plan for a disk replacement before it becomes completely dead.

J.

Re: Disk read Error

zenari — Wed, 27 May 2009 07:45:31 GMT

Thanks all,

I plan the HDD replacement

Olivier

Re: Disk read Error

avizen9 — Wed, 27 May 2009 07:56:40 GMT

hello,
you may try below suggested by ganeshan before change the disk,

#dd if=/dev/rdsk/c1t5d0 of=/dev/null bs=1024k

Re: Disk read Error

Hakki Aydin Ucar — Wed, 27 May 2009 08:32:23 GMT

apart from read error ,in terms of a write error I believe there is nothing so much except replace HDD.

Re: Disk read Error

Suraj K Sankari — Wed, 27 May 2009 09:25:23 GMT

Hi,

As Ganesan said run the below command
#dd if=/dev/rdsk/c1t5d0 of=/dev/null bs=1024k

What is the output of this command.
Did you see any errors ?

Suraj