Re: Reliability recommendations
| От | Mark Kirkwood |
|---|---|
| Тема | Re: Reliability recommendations |
| Дата | |
| Msg-id | 43FFA503.5070700@paradise.net.nz обсуждение исходный текст |
| Ответ на | Re: Reliability recommendations ("Luke Lonergan" <llonergan@greenplum.com>) |
| Ответы |
Re: Reliability recommendations
|
| Список | pgsql-performance |
Luke Lonergan wrote: > > I'd be more shocked if this weren't also true of nearly all SCSI HW RAID > adapters of this era. If you had ordered an HP DL380 server you'd get about > the same performance. > > BTW - I don't think there's anything reasonable about 50-55 MB/s from 6 > disks, I'd put the minimum for this era machine at 5 x 30 = 150MB/s. > He was quoting for 6 disk RAID 10 - I'm thinking 3 x 30MB/s = 90MB/s is probably more correct? Having aid that, your point is still completely correct - the performance @55MB/s is poor (e.g. my *ata* system with 2 disk RAID0 does reads @110MB/s). cheers Mark
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