> I'm trying to update a set of volumes on a PE1800 from 500gb disks to
> 1.5tb disks, and my CERC controller won't let the drives show up to
> the linux kernel (Centos 5.3).


Most likely a 2TB limitation (48bit lba) on a volume set on the host
controller. This is valid for most older lsi and adaptec controllers of
the era.

Try making a mirror and see if that works for you. Might be able to use
software raid to create a stripe of mirrors. That or LVM.

I have a LSI 300-8x that can't do > 2TB volumes. I suppose that provides a
strategy to market new controllers.

Pretty much all controllers have a 48bit lba limitation on the physical
disks. Not sure if there are already controllers that support physical
disks with 64bit lbas

Regards,

Seth

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