Re: New server setup
От | Mark Kirkwood |
---|---|
Тема | Re: New server setup |
Дата | |
Msg-id | 514A6FBF.2010700@catalyst.net.nz обсуждение исходный текст |
Ответ на | Re: New server setup (David Rees <drees76@gmail.com>) |
Список | pgsql-performance |
On 21/03/13 13:44, David Rees wrote: > On Thu, Mar 14, 2013 at 4:37 PM, David Boreham <david_list@boreham.org> wrote: >> You might want to evaluate the performance you can achieve with a single-SSD >> (use several for capacity by all means) before considering a RAID card + SSD >> solution. >> Again I bet it depends on the application but our experience with the older >> Intel 710 series is that their performance out-runs the CPU, at least under >> our PG workload. > > How many people are using a single enterprise grade SSD for production > without RAID? I've had a few consumer grade SSDs brick themselves - > but are the enterprise grade SSDs, like the new Intel S3700 which you > can get in sizes up to 800GB, reliable enough to run as a single drive > without RAID1? The performance of one is definitely good enough for > most medium sized workloads without the complexity of a BBU RAID and > multiple spinning disks... > If you are using Intel S3700 or 710's you can certainly use a pair setup in software RAID1 (so avoiding the need for RAID cards and BBU etc). I'd certainly feel happier with 2 drives :-) . However, a setup using replication with a number of hosts - each with a single SSD is going to be ok. Regards Mark
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