Re: disk performance benchmarks

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От Vivek Khera
Тема Re: disk performance benchmarks
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Msg-id x77jqvcted.fsf@yertle.int.kciLink.com
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Ответ на disk performance benchmarks  ("Shane Wright" <shiversraa@gmail.com>)
Список pgsql-general
>>>>> "GS" == Greg Stark <gsstark@mit.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@kciLink.com       Rockville, MD  +1-301-869-4449 x806
AIM: vivekkhera Y!: vivek_khera   http://www.khera.org/~vivek/

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