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Admin team, We are upgrading from Postgres 7.4.5 to 8.2.5 in mid January. We
are also adding new disks As we go. I am investigating using the new tablespace facility to
move our biggest and most accessed Table to the new disk. Here are the statistics. We are
running RAID 10 Current database size ------------- 63 GIG Heavy accessed table to move: Table -----------------------
7.4 GIG 2 indexes
------------------- 3 GIG apiece 2 other
indexes ------------- 2.5 GIG apiece Current database disk configuration TOTAL space --------------
404 GIG TOTAL
spindles ----------- 3 TOTAL
mirrors ------------ 3 New additional disk configuration
TOTAL space ------------ 290 GIG TOTAL
spindles ----------- 2 TOTAL mirrors
----------- 2 The choices we see are: 1. Adding the two new spindles to the other three making
one huge logical partition And all 350+ tables and 400+
indexes continue to reside there 2. Keeping the two new spindles separate and
dedicating the heavy access table And its 4 indexes to it. 3. Keeping the two new spindles separate and dedicating
the heavy access table To it, but
keeping the 4 indexes on the old partition. I know that maintaining almost 700 GIG of total disk space being utilized
by a 63 GIG Database looks like disk-space overkill but we do expect massive
growth over the Next 2 – 3 years. Any thoughts / comments would be appreciated. Also are there tools out there that monitor disk I/O and disk speed? Thanks for your time, Mark Steben Senior Database Administrator msteben@autorevenue.com IMPORTANT: The information contained in
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