topic Re: check harddisk in Operating System - HP-UX

check harddisk

hangyu — Thu, 21 Sep 2006 01:14:52 GMT

is there any unix command can check the harddisk bad sector and whether it is properly work or not ? thx.

Re: check harddisk

RAC_1 — Thu, 21 Sep 2006 01:25:02 GMT

You can check it with STM, with diskinfo and dd command.

Re: check harddisk

sudhapage — Thu, 21 Sep 2006 01:30:32 GMT

You may check through following command, it will show you whether harddisk are claimed or not..

If your disk is claimed status, one point of view your disk is ok. But you also have to check through dd, diskinfo, fsck etc..

ioscan -fnC disk

Regards,
Sudhakaran.K

Re: check harddisk

Bill Hassell — Thu, 21 Sep 2006 09:47:12 GMT

For a simple read-every-sector test, you can use this command:

DSK=/dev/rdsk/c0t0d0 <---change to match your disk
dd if=$DSK of=/dev/null bs=256k

This checks the ability to read every sector. Any errors will be reported as: I/O error.

Now this is by no means a detailed test. It simply reads the disk. It cannot test random access, writing, etc. The best way to see if the disk is working is to look at /var/adm/syslog/syslog.log regularly.