Re: Intel 710 pgbench write latencies
| От | Yeb Havinga |
|---|---|
| Тема | Re: Intel 710 pgbench write latencies |
| Дата | |
| Msg-id | 4EB15BFE.9000309@gmail.com обсуждение исходный текст |
| Ответ на | Re: Intel 710 pgbench write latencies ("Kevin Grittner" <Kevin.Grittner@wicourts.gov>) |
| Ответы |
Re: Intel 710 pgbench write latencies
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| Список | pgsql-performance |
On 2011-11-02 15:06, Kevin Grittner wrote: > Yeb Havinga<yebhavinga@gmail.com> wrote: > >> I'm now contemplating not using the 710 at all. Why should I not >> buy two 6Gbps SSDs without supercap (e.g. Intel 510 and OCZ Vertex >> 3 Max IOPS) with a IO controller+BBU? > > Wouldn't the data be subject to loss between the time the IO > controller writes to the SSD and the time it makes it from buffers > to flash RAM? Good question. My guess would be no, if the raid controller does 'write-throughs' on the attached disks, and the SSD's don't lie about when they've written to RAM. I'll put this on my to test list for the new setup. -- Yeb
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