Splitblank

[mhpx]

Added feature to specify a separate location for the blankspace partition file in the control/etc/workspace-control/images.conf "blankspacedir" left the default value in conf to be secureimages Feature requested from user due to disk performance/space issues on cluster where large amounts of blankspace were needed and the local filesystem only had space for the image files, and using a networked filesystem for both blankspace and instance caused poor IO on the network filesystem.

[igable]

This will be extremely useful for our CANFAR users and their overtaxed GPFS filesystem. Mike you tested this right?

[mhpx]

Tested both with having the blankspacedir the same as securelocaldir and having it as a different location Edit* also tested with having a lustreFS as the blankspacedir

[oldpatricka]

This looks good. We probably can't integrate it into 2.9 (We're on the second release candidate, but it should work fine with a 2.9 service.

Maybe one 2.9 comes out, CANFAR can run that, and then later we can look at a point release?