November 4, 2010

15TB Storage question and problem

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Hi, I'm new in the community, but I have some experience in the tux world... I have a question, it is possible to attach a 10-disk array (1,5 TB each one) to a 32-bit linux platform? I'd try to mount them, but the kernel boot messages show this:

sd 1:0:1:0: [sdc] Write Protect is off
sd 1:0:1:0: [sdc] Mode Sense: 9f 00 00 08
sd 1:0:1:0: [sdc] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
sd 1:0:1:1: [sdd] 0 512-byte logical blocks: (0 B/0 B)
sd 1:0:1:1: [sdd] 32768-byte physical blocks
sd 1:0:1:0: [sdc] Unsupported sector size 32768.
sd 1:0:1:1: [sdd] Write Protect is off
sd 1:0:1:1: [sdd] Mode Sense: 9f 00 00 08
sd 1:0:1:1: [sdd] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
sd 1:0:1:0: [sdc] Attached SCSI disk
sd 1:0:1:1: [sdd] Unsupported sector size 32768.
sd 1:0:1:1: [sdd] Attached SCSI disk

There are 2 volumes, one of 4096 GB (sdc) an other of 9404 GB (sdd), both with 32KB physical sector-size. The question is: it is possible? there are a way to tune the kernel to accept this really big physical sector-size?

I'd try this in a 2.60MHz Xeon single-core machine with Debian lenny 5.0 distro with a v2.6.33 custom compiled kernel.

I would appreciate any answer.