IO Error

ns30966:~# NOTICE: Executing SQL: update tblPrintjobs set
ApplicationType = 1 where ApplicationType is null and
upper(DocumentName) like '%.DOC'

ns30966:~# NOTICE: Executing SQL: update tblPrintjobs set
ApplicationType = 1 where ApplicationType is null and
upper(DocumentName) like 'DOCUMENT%'

ns30966:~#
ns30966:~# ERROR: could not read block 3231 of relation
1663/165707259/173511769: Input/output error
CONTEXT: SQL statement "update tblPrintjobs set ApplicationType = 1
where ApplicationType is null and upper(DocumentName) like
'DOCUMENT%'"
PL/pgSQL function "fnapplicationtype" line 30 at execute statement

[1]+ Exit 1 psql -d kpmg -c "select
fnApplicationType()"

I get this error. Is this hardware related or could it be something
with the postgresql.conf settings.
I changed them for performance reasons. (More memory, more wal
buffers).
There are 2 databases. One got the error yesterday, I dropped it (was
brand new), recreated it and the error was gone.
Now the error is there again on another database.

Personally, I think it's a HD error.

Met vriendelijke groeten,
Bien à vous,
Kind regards,

Yves Vindevogel
Implements