SCSI Controller Question
derek at computinginnovations.com
Tue Oct 31 18:41:20 UTC 2006
If you are using the drives as just SCSI drives and get another controller
in the same Manufacturer's "Family" you should be able to just replace the
If you use a different manufacturer's controller, you may have to re-format
the drives after you do a dump on the old controller. The reason is that
there are no "standards" for drive geometry translation. SCSI drives are
made to appear to the OS as a series of logical blocks by the
controller. The way the controller translates the actual geometry to the
logical blocks can differ on different manufacturer's controllers.
At 02:30 PM 10/30/2006, Wayne wrote:
>Not entirely FreeBSD specific, but I was hoping someone could help with a
>question about SCSI controllers.
>One FreeBSD system here is running drives on an old Adaptec 2940
>controller. I would like to upgrade the controller, as the drives are
>actually Ultra 160 capable. Can you normally just swap SCSI drives onto a
>different controller, and still access all the data? (like with IDE) Or
>will I need to dump & restore, also?
> -Thanks, Wayne
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