The partition of my hard disk is as follows
root ->1.5 GB

/usr ->4.5 GB

/home -> 32 GB [ Grow ]

swap 512

The hard disk is seagate

When I run bad block check [command badblock -nsv /dev/hda1 ,etc] on this partition [unmounted partition]

I dont get any error in /
But found three bad blocks in /usr and one in /home

This problem I tried in 6 harddisks and got the same result

The badblock its indicating is exactly near the end of the partitions

I ran seagate tool and found no badblocks on the harddisks

Linux ditro -> Redhar 7.2

Any suggestions would be very helpful since all are commercial PC`s waitin to be shipped

Regards
Z

For each partition you found errors in, try "dd if=/dev/<whatever> of=/dev/null" (where <whatever> is the partition's name, such as hda1 or sda1). If you get a read error, then you can know badblock was correct. If you don't get an error, this doesn't necessarily mean badblock was wrong though.

You also may or may not be able to check a whole drive (all partitions) at once with something like "dd if=/dev/hda of=/dev/null"... I'm not sure if that's allowed or not.

dd is not meant for doing these kinds of checks, so if you don't get errors, it doesn't necessarily mean the drive is OK (actual bad block checkers usually test each sector more than once just to be sure), but if you do get errors, it's a pretty good indicator that there is a problem.

I have 3 servers with 4 hdds running on mandrake pro 9.2, in all of them and all of the partitions I have 2-3 badblocks reported at exact end of the partition, other test methods didn’t show any problem.

IS Badblock utility reliable?
I don’t know but for me the badblocks tool is not working..

Yeah but now i tried passing a different argument to badblock check.

Just try it out

The option is -b 4096

Thus i defined a block size of 4096 for the utility to check at a time.
This test showed no bad blocks and i am using this now.


Cheers
Z