Archive for March, 2009

Data ONTAP and Space Management – Part 7

Mar 18th 2009Uncategorized

With the combination of Data ONTAP 7.2 and flexible volumes we have some new options for managing space in volumes that contain LUNs.  Obviously, we still have to provide a free block when the host wants to write, but now we have a new block pool in the aggregate we can pull from.  We also [...]

Space Management and Data ONTAP– Part 6

Mar 3rd 2009Uncategorized

We have been looking at snapshot space management primarily from a NAS perspective.  From this perspective the primary technique used to deal with storage tied to the snapshots is the mechanism of the snapshot reserve.  And we have seen that all the snapshot reserve really does is set aside some space when the volume is [...]