Re: Why database is corrupted after re-booting

On Wed, 2005-10-26 at 18:27 +0300, Andrus wrote:
> Yesterday computer running Postgres re-boots suddenly. After that,
>
> select * from firma1.klient
>
> returns
>
> ERROR: invalid page header in block 739 of relation "klient"
>
> I have Quantum Fireball IDE drive, write caching is turned OFF.
> I have Windows XP with FAT32 file system.
> I'm using PostgreSQL 8.0.2 on i686-pc-mingw32, compiled by GCC gcc.exe (GCC)
> 3.4.2 (mingw-special)
>
> Why the corruption occurs ?

Most likely because the IDE was caching the information. IDE drives
sometimes lie about having caching turned on or off.

> How to avoid data corruption?

You could also have a bad drive.

> Will NTFS file system prevent all corruptions ?

No.

Sincerely,

Joshua D. Drake

> If yes, how to convert FAT32
> to NTFS without losing data in drive ?
>
> Andrus.
>
>
>
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