I'm hoping that someone can give me ideas on the cause of recurring database
corruption on a Firebird 1.5.2 database. We've used Interbase, and later,
Firebird for over 10 years, and it has been a stable, dependable system.

Within the last three months, I've had more problems with database
corruption than in the previous 10 years. "What's different?" I ask myself.
There are two new programmers hitting the database via PHP. That's the only
significant difference that I'm aware of. The errors after validation
tonight are:

Summary of validation errors

Number of index page errors : 6
Number of database page errors : 3

reported from IBExpert. The database validated with no errors less than 5
days ago.

I've checked the disk at a software level (this happens to be on a WinNT
system, but we also use Linux) and everything checks out, so I'm assuming
that there is some other problem, perhaps related tto the PHP stuff, which I
don't control.

I've never had these kinds of problems before, and now I'm having to rebuild
the database weekly. The hardware is relatively modern, even if the O/S is
not. Any ideas would be greatly appreciated.