In article <36170F95.16BD_at_gpu.srv.ualberta.ca>, by2_at_gpu.srv.ualberta.ca
says...
> I was told by a DBA that the disk where the redo log resides should not
> be configured as RAID. Is it true and why? Thank you in advance!
>
> Brian
>
RAID 5 performance is only good when the percent writes is under 25. Redo
logs are written to much much more often than read. RAID 0+1 is very
appropriate for redo logs as it gives both speed and redundancy.
Liz
--
My real address is L R E E N a t P E R R I E R G R O U P d o t C O M
Received on Tue Oct 06 1998 - 11:31:06 CDT
