topic How to detect slot for a disk in Operating System - Linux

How to detect slot for a disk

Andreas Bechtle_1 — Thu, 13 Oct 2005 08:55:28 GMT

Hello,

I've several D380 with Hardwareraid and Redhat 2.1. There are 6 internal disk, each with a mirror so in the OS I see my 3 disks.

My question: How can I detect in which slot a disk is?
I.E. I want to remove /dev/cciss/c0d1 (after umount etc), how do I know which 2 disks to pull out off the server? I need a command which says "/dev/cciss/c0d1 are in Slot X and Y". Any ideas?

Best Regards

Andreas

df
Filesystem 1k-blocks Used Available Use% Mounted on
/dev/cciss/c0d0p7 61700020 2358200 56207568 5% /
/dev/cciss/c0d0p1 51342 20015 28676 42% /boot
none 4194304 145668 4048636 4% /dev/shm
/dev/cciss/c0d1p1 70009904 51750452 14703124 78% /disk1
/dev/cciss/c0d2p1 70009904 11416172 55037404 18% /disk2

Re: How to detect slot for a disk

Ivan Ferreira — Thu, 13 Oct 2005 10:00:57 GMT

You could use dd to generate read activity for the disks, so, use dd and check the led activity, like this:

dd if=/dev/cciss/c0d0 of=/dev/null
dd if=/dev/cciss/c0d1 of=/dev/null
dd if=/dev/cciss/c0d2 of=/dev/null

Re: How to detect slot for a disk

Andreas Bechtle_1 — Sun, 16 Oct 2005 14:58:12 GMT

Hi,

I knew this trick but I did not trust the results. Just did not want to believe the OS is on a RAID5, but it is true. =8-O

However, you got the points for the correct answer ;)
I also found another way: With Insightmanager you can get this information. So there must be a way to get this online.

Have a nice day

Andreas