Re: mirroring data on different drives?

Someone please please help me!!!! :-(

Steve

Steve wrote:
> Hi,
>
> I've been running postgres on my server for over a year now and the
> tables have become huge. I have 3 tables that have data over 10GB each
> and these tables are read very very frequently. In fact, heavy searches
> on these tables are expected every 2 to 3 minutes. This unfortunately
> gives a very poor response time to the end user and so I'm looking at
> other alternatives now.
>
> Currently, the postgresql installation is on a single disk and so all
> the tables have their data read from a single disk. Searching on
> different tables by multiple users at the same time results in very slow
> searches, as it's mainly dependant on the spindle speed. I recently
> gained access to another server which has 3 SCSI disks. I know there is
> a way to mirror the tables across the three different disks but I'm not
> sure if it's as easy as symlinking the files (WAL files only?) across.
> Can anyone please tell me what to do here and how to harness the power
> of the three SCSI drives that I have. Which files in the data directory
> need to be moved? Is this safe? Can backups etc be easily done? Any
> information will be greatly appreciated. Thank you,
>
> Steve
>
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