A vendor is configuring a system for us. We are getting a rackmounted
2100/275 server. For data fault tolerance, we are getting two BA350 enclosures
each having three rz28s and there will be two storage controllers. The three
disks will be striped and each striped set of disks will be mirrored (the disks
in one enclosure mirror the other enclosure's disks).
The vendor is saying that we need Logical Storage Manager (which will stripe
and mirror the disks) and we need raid controllers. I'm not an expert (they
are),
buy I think that is redundant. I pertain that all we need is LSM and two
KZPAA controllers (which much less expensive) because the LSM is hardware
independent
in doing the stripig and mirroring. The LSM license is free for us (due to the
CSLG educational program we subscribe to) as is the Advanced File System
Utilities I would use instead of ufs filesystems.
Whose right? Can't we stripe and mirror via LSM over two PCI (not RAID) storage
controllers and save money? Are there other considerations, like performance,
that should affect the controller type decision?
Thanks for your help.
Bob Berrigan
Kent School District
Kent, WA
Received on Wed Apr 19 1995 - 17:45:19 NZST