| From: | Vivek Khera <khera(at)kcilink(dot)com> |
|---|---|
| To: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: disk performance benchmarks |
| Date: | 2004-09-15 17:51:38 |
| Message-ID: | x77jqvcted.fsf@yertle.int.kciLink.com |
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| Lists: | pgsql-general pgsql-performance |
>>>>> "GS" == Greg Stark <gsstark(at)mit(dot)edu> writes:
GS> For write heavy application I would expect RAID5 to be a lose on
GS> any software-raid based solution. Only with good hardware raid
GS> systems with very large battery-backed cache would it begin to be
GS> effective.
Who in their right mind would run a 14 spindle RAID in software? :-)
Battery backed write-back cache is definitely mandatory for performance.
--
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Vivek Khera, Ph.D. Khera Communications, Inc.
Internet: khera(at)kciLink(dot)com Rockville, MD +1-301-869-4449 x806
AIM: vivekkhera Y!: vivek_khera http://www.khera.org/~vivek/
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