[Novalug] Strange Disk Problem

Jason Kohles jkohles@palantir.com
Fri Sep 10 15:36:28 EDT 2010


What do you get if you 'cat /sys/block/*/device/model'?  My first guess would be that one of them is the internal dvd drive or DRAC virtual media...


On Sep 10, 2010, at 3:16 PM, Greg F wrote:

Guys,
I'm stumped on this one and google doesn't seem to be helping.

I'm using Ubuntu Server 10.04.1 on a Dell PowerEdge 2950 III with a Sun StorageTek PCI Express card and a Sun j4200 disk array with 12x 1TB disks.

After performing a clean install the system shows 13 1TB disks attached.  How can this be?  Only 12 are connected???  I'm going to be setting up mdadm and LVM but was planning RAID 1 which requires an even number of disks.

Fdisk -l shows 13 disks (/dev/sdb through /dev/sdn)
cat /var/log/messages shows 13 disks (/dev/sdb through /dev/sdn)
fstab file looks fine

If i look in the BIOS for the StorageTek card it shows 12 disks and 1 storage enclosure connected.

This box used to have Windows on it which showed 12 disks, also used to have OpenSolaris which showed 12 disks so I'm inclined to think it's not a hardware problem.

Has anyone ever seen this behavior before?  Seems like it might be a bug.
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_________________________________________________________
Jason Kohles, RHCA
Palantir Technologies | Forward Deployed Engineer
jkohles@palantir.com<mailto:jkohles@palantir.com> | 703.957.5784
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