ketsak <member44158@dbforums.com> wrote in message news:<3570048.1068167946@dbforums.com>...
> Hi all,
>
> My tape drive supports data compression.
>
>
>
> 1) Do I really need to use -p flag with mksysb command ?

No, you don't need to. However, if your tape drive is doing hardware
compression then you should do. Using the mksysb -p flag should make
mksysb's faster (since no CPU cycles are being spent doing software
compression) and also may make the image size smaller (as compressing
a compressed file can often increase its size).

>
> 2) Will restoration of mksysb tape fail if -p flag is not used while
> taking backup ?
>
No. It makes no difference to restoring.

> 3) How much critical -p flag is ? Does it really matters ?
>
It isn't critical either way. It does matter, but only for
performance and space; not for the actual functionality of mksysb.

Iain.