| From: | Scott Marlowe <smarlowe(at)g2switchworks(dot)com> |
|---|---|
| To: | Franz(dot)Rasper(at)izb(dot)de |
| Cc: | teolupus(at)gmail(dot)com, pgsql general <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: RAID + PostgreSQL? |
| Date: | 2006-06-27 15:45:17 |
| Message-ID: | 1151423117.4215.66.camel@state.g2switchworks.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
On Tue, 2006-06-27 at 08:05, Franz(dot)Rasper(at)izb(dot)de wrote:
> I have here HP DL 380 G3 und HP DL 380 G4. (here Smart Array 5i and Smart
> Array 6i)
> Maybe there are problems with old linux kernel (but as far as i know >
> 2.4.27)
> I dont know about such performance problems, maybe the conrollers are faster
> under windows.
>
> The battery backup write cache are very import for inserts.
>
> You should use for performance test with dd under linux larger blocksizes,
> but you should compare postgresql under linux and windows (selects, update,
> inserts, etc.)
Note that having the latest driver usually helps a lot too.
The LSI megaraid was solid but a mediocre performer with the older 1.18
driver, but the 2.x series driver was much faster when I tested it.
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