Hi,
I am just setting up an Alphaserver 1000 with KZPSC PCI 3 channel raid
and have a couple of questions.
-----------------------------
When I boot for each Logical drive on which I have enabled Write back
cache I get the message
"WRITE BACK cache operation NOT SUPPORTED"
Why is this? I have 32Mbytes and battery backup installed and enabled?
The whole system will be run on an UPS with auto shutdown in case of
loss of power.
Any suggestions as to what I have done wrong?
Initializing xcr0. Please wait.
Initializing xcr0. Please wait.
Initializing xcr0. Please wait.
Initializing xcr0. Please wait.
Initializing xcr0. Please wait.
xcr0 at pci0 slot 13
re0 at xcr0 unit 0 (unit status =
_ONLINE, raid level = 5) (WRITE BACK
_cache operation NOT SUPPORTED)
re1 at xcr0 unit 1 (unit status =
_ONLINE, raid level = 5) (WRITE BACK
_cache operation NOT SUPPORTED)
re2 at xcr0 unit 2 (unit status =
_ONLINE, raid level = 5) (WRITE BACK
_cache operation NOT SUPPORTED)
re3 at xcr0 unit 3 (unit status =
_ONLINE, raid level = 1)
gpc0 at eisa0
dli: configured
-----------------------------
The Alphaserver 1000 was Dead On Arrival and it took DEC over a week
to find a replacement CPU module. If this had happened when the system
was in use it would have been a complete disaster.
I am thus looking for an in house fall back position.
Although not supported will the raid controller work in other PCI
based workstations? In particular I keep a 250 4/266 available for
emergencies - could I put the raid controller with its two external
Storageworks boxes and an FDDI card in this to keep us going?
As all disks are external this should give us full functionality with
the minimum of downtime and just leaving the raid controller as a
single point of failure -I will consider keeping a spare on the shelf.
I intend to give it a try in the next few days but am concerned about
power supply/overheating problems.
Tim
Tim Janes | e-mail : janes_at_signal.dra.hmg.gb
Defence Research Agency | tel : +44 1684 894100
Malvern Worcs | fax : +44 1684 895103
Gt Britain | #include <std/disclaim.h>
Received on Thu Apr 18 1996 - 01:12:09 NZST