I recently set up a new DG Aviion for a customer using a 7-disk
Clariion disk array with a read cache.
We elected for 2 disks mirrored, with redo on the mirrored disks for
fast access, and the rest of the database on a 5-disk raid-5 array.
This database has a steady write access, not performance-critical
(order entry etc.) , but a high read performance need - accessing
detail stats over 2 years deliveries etc., and appears to work o.k.
As a precaution, I set up 5 file systems (/disk1 , /disk2 etc.) and
allocated tablespaces and tables to them as if I were using single
disks, so if there is a problem, I can switch to separate disks with
one disk backup/restore.
Received on Sun Nov 17 1996 - 00:00:00 CST
