Subject Re: [ib-support] Re: WRONG PAGE TYPE IB6 ODS10
Author Helen Borrie
At 08:54 PM 08-09-02 +0000, you wrote:

>I am intrested though why moving a GDB should be an issue as I
>understand it a GDB is extremely portable and infact I often have to
>move the physical location of GDB's on sites.

GDB files are not designed to be portable, nor to be backed up by
filesystem copy programs. GBK files (backups created by the GBAK program)
are highly portable.

> > Have you being doing regular backups and restores over this last
>Yes the Client has been doing backups. However against my advice
>they have not been using backup software that has an IB Agent.

What do you mean by "an IB agent"?

>result has been that the actual backups have not been good. Yes and
>the Client does now except that the should be checking their backups.

If a filesystem copy backup program is used whilst a database is running,
you risk corruption - there are very few ways you can corrupt a FB/IB
database and this is one of them. It's not just that the backed up file
will be inconsistent (because it will have changed before the copy is
complete) but Windows file-copying mechanisms actually lock sectors of the
disk during the copy, preventing the database engine from completing its

Moreover, if your customer is never using gbak, then there is important
periodic housecleaning that will never get done.

All that said, where does the error in the thread's title come in - "WRONG
PAGE TYPE IB6 ODS10" ? With IB 6 you can't open a database that was
created on a lower IB version...Firebird, however, will open, read from and
write to a 5.x database with a smile on its face.