Hi,
I have an alphastation 5 500/300 with a KZPSC-BA SWXCR 3-channel RAID controller
to which I have recently added a shelf of 7x18GB drives (in addition to 2
shelves of 7x4.3 GB drives). In the standalone configuration program,
I created a single RAID 5 drive group for the 7x18GB drives, and then went
to create a logical drive on that drive group. It then asks for the size
of the logical drive, defaulting to 104190 MB (the full 7x18GB - 18GB for
parity), but to my surprise it will not accept anything more than 32k MB.
I cannot find this limit mentioned anywhere in the documentation, and I was
wondering if anyone knew where it came from or any ways to increase it. Is
it a HW limitation of the SWXCR, is it a software limitation (using V3.3 of
the standalone software)? Does that limit depend on the amount of memory in
the card (currently only a meager 4MB), or the stripe size (currently the
max, 64kB, so this won't increase it), or on something I haven;t thought of.
My original intent was to create one large logical drive, then partition into
5-6 smaller pieces, which would be formatted UFS and used for AFS. I can
live with 5-6 logical drives instead. Unfortunately, I was hoping for a
40-50 MB partition/logical drive for one of them, which seems to be ruled out.
BTW, is anyone aware of any limits imposed by DU 4.0D on re devices in the
30 - 100 GB range?
Thanks. Email replies to me will be summarized.
Tom Payerle
Dept of Physics payerle_at_physics.umd.edu
University of Maryland (301) 405-6973
College Park, MD 20742-4111 Fax: (301) 314-9525
Received on Thu Sep 23 1999 - 15:02:33 NZST