MSA Storage

Problem of snap pool on MSA 2000 G3 FC

Sylvain Dubois
Occasional Contributor

Problem of snap pool on MSA 2000 G3 FC



Sorry for my bad english.


I use the snapshot technology of a MSA 2000 G3 FC on a LUN of 2 TB (raid 6). I make a snap pool of 100 GB on another vdisk (raid 5). I mount the snapshot on the backup exec server and backup all the data of the snapshot (Bakcup exec 2010 with the last update).


My problem is the snap pool filed very quick at every backup and it isn't enough free space to finish the backup. But the backup is doing during the night and there isn't a lot of write during this period. I have another snapshot on the same server but with a CX300 and all work fine with them for the backup. I don't understand why the snapshot fil so quick and why the unique data of the snapshot is not equal to the size of the snap pool less the free space.