I received one answer to this question; but it was a helpful answer,
from alan_at_nabeth.cxo.dec.com:
As long as the shelf and any associated cabinetry can
move enough air to keep the 9 GB drives cool you should
be ok.
As for making the drives an array, the RAIDarray 200
software is just the software interface to a RAIDarray
200 backplane controller. This family of controller
comes in two flavors per model; single channel and
three channel. If you have the three channel version
you can connect one shelf to each channel.
We do have 3-channel KZEs.
To get the
best performance you'll want to spread the disk across
the shelves, so that each disk in an array is on a
different bus.
Original question:
We have inherited two 2100s, five external cabinets (BA360-KB, 7 slots
apiece), and an assortment of 2G, 4G, and 9G disks. These disks were put
in any old slot for shipping; they are not in a known working
configuration.
We would like to combine 9G and 2G disks in the same cabinet. Will this
work?
We are planning to RAID each cabinet with the RAID 200 software.
we're aware that the RAID 200 software has an upper limit of 32G for the
useable disk space on RAID-5, so we weren't planning on putting any more
than four 9G disks in a RAID-5 group (1 9G parity + 3 9G = 27G useable).
Should we put the 2G disks that're in the same shelf with 9G disks in
their own RAID group?
Hugh
Hugh Pritchard, M.Sc.
Mailto: Hugh.Pritchard_at_MCI.com
Washington, DC, area
Received on Thu Apr 16 1998 - 19:08:15 NZST