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You high water and low water marks have nothing to do with what data
gets duped to tape.

Netbackup can, will, and should dupe ALL data on the DSSU to tape, as
soon as it possibly can (check the staging frequency in your DSSU
config....mine are set to every 2 hours 5am - 6pm Sunday-Friday,)

Being duped to tape does not mean it is moved off of DSSU.

If your low water mark is 80% and your high water mark is 95%, backups
will be written to DSSU untill it hits 95% full....at that time it will
purge the oldest images already written to tape, untill it gets down to
less than 80% full, then continue writing more backups.....

If images are not written to tape, they will not be purged from the
DSSU, regardless of reaching the high water mark...... so if images are
not getting duped to tape, your DSSU will fill to 100% and backups will
fail.

Paul



--=20


> -----Original Message-----
> From: veritas-bu-admin AT mailman.eng.auburn DOT edu=20
> [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Clooney
> Sent: May 15, 2006 4:32 AM
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: [Veritas-bu] Duplication NBU 6.0 MP1
>=20
>=20
> Hi all
>=20
> Seem to be having an issue with duplication.
>=20
> The disk staging unit has a low water mark level of 80%. We=20
> are trying to keep
> as much data on disk as possible with the idea that the disk=20
> is kept at an 80%
> capacity , when data increases over this point duplication=20
> kicks in a fire's
> off to tape to bring the DSSU back to 80%.
>=20
> What is actually happening is that everything on the DSSU is=20
> getting duplicated
> of to tape. Is there something I am missing?
>=20
> Appreciated
>=20
> Dave
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La version fran=C3=A7aise suit le texte anglais.

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