Description
This item is from the PC Hardware
FAQ, by Willie Lim and Ralph Valentino with numerous
contributions by others. (v1.25).
3.13 Can I share SCSI devices between computers?
There are two ways to share SCSI devices. The first is removing the
device from one SCSI host adapter and placing it on a second. This
will always work if the power is off and will usually work with the
power on, but for it to be guaranteed to work with the power on, your
host adapter must be able to support "hot swaps" - the ability to
recover from any errors the removal/addition might cause on the SCSI
bus. This ability is most common in RAID systems.
The second way to share SCSI devices is by connecting two SCSI busses
together. This is theoretically possible, but difficult in practice,
especially when disk drives are on the same SCSI chain. There are a
number of resource reservation issues which must be resolved in the
OS, including disk caching. Don't expect it to 'just work'.
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pc, hardware, faq, frequently asked questions, repair, computer
