From: | Gaetano Mendola <mendola(at)bigfoot(dot)com> |
---|---|
To: | Chris Gamache <cgg007(at)yahoo(dot)com> |
Subject: | Re: What's the best way to use a Solid State HDD? |
Date: | 2004-08-17 15:21:59 |
Message-ID: | 41222297.50208@bigfoot.com |
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Lists: | pgsql-admin |
Chris Gamache wrote:
> I'm using a TiGiJet 2GB Solid State drive.
How much it cost ?
> My thought was to place the WAL on it to speed up writes. I don't know of any
> tools that exist to determine the effectiveness of this except for anecdotal
> analysis (This type of query took 3 minutes yesterday, and 1 minute today) ...
> Sar gives me machine-wide stats, but we do more than PostgreSQL here. I can
> enable stats, but will that tell me what I'm looking for?
>
> Vmstat reports no swapping of pages of ram to disk, so I don't think it would
> make sense to make it a Linux Swap drive.
>
> I suppose I could move some actual tables and indexes to the device.
> Tablespaces might make this easy. I'm still using 7.4.3. If I had to pick
> between tables and indexes, which would make more sense to put on the
> solid-state device?
>
> What would you do if you had a solid state hdd to use and you wanted to speed
> up PostgreSQL?
Depend what do you want obtain.
Do you want speed up writes ?
Are you annoyed by a full scan table that you can not avoid ?
or what ?
Regards
Gaetano Mendola
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