Re: RAID controller + disklabel = out of bounds

[Jon Simola <jon_(_at_)_abccomm_(_dot_)_com>]

On 10/24/05, dick_(_at_)_uchicago_(_dot_)_edu <dick_(_at_)_uchicago_(_dot_)_edu> wrote:

> i got an LSI MegaRAID SATA 300-8X a couple weeks ago and i
> noticed it was not quite "behaving".

I've not had any problems with mine, yet.

> ami0: out of bounds 390,716,864 - 1 >= 388,671,488
>
> so apparently the controller did not grok the last little
> portion of the disk i had attached, but the machine i had
> installed the 3.8 snapshot from had done so just fine.

Probably because the SATA drive configured as an array (and then
exported as a SCSI device) on the ami card has different geometry than
when natively plugged into a SATA controller. And the fact that the
card gobbles up a little bit of space on each drive to store the array
config.

> to work around this i've made sure to only allocate less than
> the 388,671,488 sectors that the controller is seeing. now
> things are running fine.

Wipe and recreate the partition/slice/disklabel from scratch. The
on-disk configuration doesn't match what the controller thinks it
should be.

--
Jon Simola
Systems Administrator
ABC Communications