Greg -
I've been staying away from Adaptec adapters because so many problems
were reported with the Linux device drivers. Even after the
manufacturer started working with the kernel hackers, I heard that
there were always a few adapters that would not work. Fixing the
software for them would break it for someone else. I have not checked
recently so maybe things have improved. At any rate, I suggest
working with the latest kernel.
For ease of testing, I suppose you know about these (documented in the
source, drivers/scsi/scsi.c):
* Usage: echo "scsi add-single-device 0 1 2 3" >/proc/scsi/scsi
* with "0 1 2 3" replaced by your "Host Channel Id Lun".
* Consider this feature BETA.
* CAUTION: This is not for hotplugging your peripherals. As
* SCSI was not designed for this you could damage your
* hardware !
* However perhaps it is legal to switch on an
* already connected device. It is perhaps not
* guaranteed this device doesn't corrupt an ongoing data transfer.
...
* Usage: echo "scsi remove-single-device 0 1 2 3" >/proc/scsi/scsi
* with "0 1 2 3" replaced by your "Host Channel Id Lun".
*
* Consider this feature pre-BETA.
*
* CAUTION: This is not for hotplugging your peripherals. As
* SCSI was not designed for this you could damage your
* hardware and thoroughly confuse the SCSI subsystem.
*
...which are handy if you can power your disks up independently.
- Jim Van Zandt
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