>4 full D40s, JBOD, for the database? Ouchie. There's my leading >candidate for performance problems.
>I suggest one VG with a bunch of non-raided disks in it, raw LVs one >or two to a spindle, with mirrors on separate spindles, for DB and >log. To be more clear. The 4 D40's are a mixture of database, logs and disk pools. One VG for database, one for mirrored database and one for data storage pools. Four full D40's just for a database would be quite unnecessary. No raid anywhere, all raw disk consisting of one LV per disk no matter if it is database, log or disk pool related. Mirrors are absolutely on separate spindles which are also on separate D40's. Thanks, Geoff Gill TSM Administrator PeopleSoft Sr. Systems Administrator SAIC M/S-G1b (858)826-4062 Email: <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED]