Jochen,

The 89 GB is what is currently being reserved. The reason it is a lot less than 330 GB is because your actual exchange database is probably only about 89 GB. NetApp is sparse in nature, meaning even if you create a 330 GB lun it does not actually go and create a file 330 GB large.

Derek

-----Original Message----- From: owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf Of Willeke, Jochen Sent: Monday, February 13, 2006 5:24 AM To: toasters@mathworks.com Subject: Snap Manger / Space reserve

Hi everybody,

i am new to the whole netapp topic and right now i'm a little bit confused. Currently we run a FAS920 with a LUN for our exchange database. We use snapdrive and snapmanager to take snapshots of this system and here is my problem. As i was told LUN's do not need a "Snap reserve" in the traditional way so i changed this setting to 0%.

What i am wondering now is the output of df -hr total used avail reserved /vol/exchdata 700GB 428GB 271GB 89GB

The Lun is currently at 330 GB so i expected the reserved space to be 330 GB too, because i learned with LUN's it is the default and recommend setting to have it like that.

Can anybody help? Where does this 89 GB come from and is there a command to see how much space is currently reserved for this LUN?

Rgds and thanks in advance

Jochen