Re: SCSI Controller Question

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 controller.

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.

-Derek


At 02:30 PM 10/30/2006, Wayne wrote:
Hey Guys,

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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