Re: What's the best way to use a Solid State HDD?

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
effectivenessof 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
whatI'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