svanderclock wrote:

> Hello,
>
> as i heard, when the page size is 8192 it's better to have the disk allocaton unit size to 8192 (it's make sense). but i m suspicious to know if every firebird page of 8192 will go EXACTLY in one disk allocation unit size of 8192 ? because the system don't know where in our GDB the pagesize are to put every of them on one cluster ...
>
> for exemple when we manually copy the database on the hard drive, how to be sure that every page will fit one disk allocation unit size ? same when we do a backup and restore ...

I can't speak for copying database files, but the engine always
writes page sized blocks which should cause the file system to
align them.


Cheers,

Ann