I've have an ageing Linux server running on Dell PowerEdge hardware, with a SAS 5IR RAID controller. It has a pair of SAS 146Gb disks in a RAID 1 configuration that has the OS and other software. I have a need to add a large chunk of storage to the server. The data going on the disk isn't important, and with budget being limited for this, I've decided to add a large 2TB SATA disk to the unused SATA interface that is on board. The system sees the disk, but
scsi 5:0:1:0: Direct-Access ATA WDC WD2002FAEX-0 05.0 PQ: 0 ANSI: 5 sd 5:0:1:0: [sdb] Very big device. Trying to use READ CAPACITY(16). sd 5:0:1:0: [sdb] 18446744073321613488 512-byte hardware sectors (9444732965540666 MB) sd 5:0:1:0: [sdb] Write Protect is off sd 5:0:1:0: [sdb] Mode Sense: 00 3a 00 00 sd 5:0:1:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
As you can see above, the size is reported incorrectly. I suspect it might be a limitation of the kernel I'm running, but I can't find anything to support this theory. Can anybody confirm if this is likely to be the case?
The OS is Ubuntu 7.10 (Server, x64 IIRC, no GUI), running kernel 2.6.22-14-server.
BTW: Yes, I know it's a non LTS version of Ubuntu, and it is very out of date. This isn't a security risk in the scenario it is being used in. I'm hoping to not have to update the kernel or OS if it can be avoided, but am prepared to do so, if I'm sure it will resolve the problem.