| From: | Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com> |
|---|---|
| To: | Jesper Krogh <jesper(at)krogh(dot)cc> |
| Cc: | Greg Smith <greg(at)2ndquadrant(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: 3ware vs. MegaRAID |
| Date: | 2010-04-09 19:12:13 |
| Message-ID: | o2sdcc563d11004091212q6da59676yd9af7585130dddd1@mail.gmail.com |
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| Lists: | pgsql-performance |
On Fri, Apr 9, 2010 at 1:02 PM, Jesper Krogh <jesper(at)krogh(dot)cc> wrote:
> It would be nice if there was an easy way to test and confirm that it
> actually was robust to power-outtake..
Sadly, the only real test is pulling the power plug. And it can't
prove the setup is good, only that it's bad or most likely good.
> .. just having a disk-array with build-in-battery for the SSDs would
> solve the problem.
Even a giant Cap to initiate writeout on poweroff would likely be
plenty since they only pull 150mW or so.
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