Re: Disappointing performance in db migrated from MS SQL Server

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От Vivek Khera
Тема Re: Disappointing performance in db migrated from MS SQL Server
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Msg-id x7fzde3agp.fsf@yertle.int.kciLink.com
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Ответ на Disappointing performance in db migrated from MS SQL Server  (Leon Out <leon-lists@comvision.com>)
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>>>>> "LO" == Leon Out <leon-lists@comvision.com> writes:

LO> Josh, the disks in the new system should be substantially faster than
LO> the old. Both are Ultra160 SCSI RAID 5 arrays, but the new system has
LO> 15k RPM disks, as opposed to the 10k RPM disks in the old system.

If you've got the time, try making your 5 disk array into a RAID10
plus one spare.  I found that with that few disks, RAID10 was a better
performer for an even mix of read/write to the DB.

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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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