To expand these boxes simply involves putting a number of drives in another
box along with an IDEPlex. the SCSI from the IDEPlex is then brought out
to the back of the box where you simple connect it to the original server
using a standard external SCSI cable.
Just make sure you terminate the SCSI cable.
The best setup for this is to have tow connections on the back of the
box running into the case and connect one of these to the original box
and either daisy chain more devices onto the other connector or put a terminator
1. When you buy 54 hard-drives in total you will have a few drives which
simply won't work, but since I had bought a few spare to have in case of
failures I was able to work around the few failures.
2. Re-syncing the RAID5 arrays when they are first created takes almost
2 days, as far as I know this will also be about the time to rebuild a failed
3. Backups. Well backing up over a TB of data would require a
lot of tapes, and since one of the reasons we were going to be using these
boxes was to cut down on the number of tapes we would be using. The
only solution to this was to build another box and house it off-site. We
would also be doing monthly backups to tape.
About the author, Mark Kilmartin.