Re: BBU still needed with SSD?
От | Andy |
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Тема | Re: BBU still needed with SSD? |
Дата | |
Msg-id | 1311039230.79437.YahooMailClassic@web111310.mail.gq1.yahoo.com обсуждение исходный текст |
Ответ на | Re: BBU still needed with SSD? (David Rees <drees76@gmail.com>) |
Ответы |
Re: BBU still needed with SSD?
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Список | pgsql-performance |
--- On Mon, 7/18/11, David Rees <drees76@gmail.com> wrote: > >> In this case is BBU still needed? If I put 2 SSD > in software RAID 1, would > >> that be any slower than 2 SSD in HW RAID 1 with > BBU? What are the pros and > >> cons? > > What will perform better will vary greatly depending on the > exact > SSDs, rotating disks, RAID BBU controller and > application. But > certainly a couple of Intel 320s in RAID1 seem to be an > inexpensive > way of getting very good performance while maintaining > reliability. I'm not comparing SSD in SW RAID with rotating disks in HW RAID with BBU though. I'm just comparing SSDs with or withoutBBU. I'm going to get a couple of Intel 320s, just want to know if BBU makes sense for them.
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