Re: Cannot start Postgres- FATAL: invalid cache id: 19

On Wednesday, December 01, 2010 1:27 PM Vick Khera wrote:
> Just how big is the table and how many transactions per second do you
push
> through it?  Perhaps your I/O bandwidth is just insufficient for your
load
> level.
>

The entire database is about 700 GB. In the database I've got
approximately 1200 tables, most in the 300-500 mb range (254 columns,
500k to 1000k rows). When a table is being accessed it has approximately
5-7 transactions/sec. Usually 10-12 tables are being accessed at a time.
Each table is hit 2-3 times a day for about 10 minutes each time.

I know I/O is an issue, but I didn't expect the database to fail, and
then be what I presume to be unrecoverable. Is there a way to recover
data if I can't get Postgres to start up? Is there a way to vacuum the
table if Postgres won't start up in hopes to get it to restart? I had
the database replicated, but the copy won't start up for the same
reason.