Here's a tip:
If you are recapturing large disk images, you'll get much better performance if you turn off (lowest setting) shifted-quanta analysis in the archive's settings. This will greatly improve recapture performance.
Disk images are an array of immovable blocks. Data doesn't "shift" in a disk image the way it can in a file. So searching for shifted data wastes a great deal of resources.
James,
I know this is an cold "Beta" thread, but do you have any new recommendations regarding archiving large virtual disk images in Parallels?
My virtual machine (.pvm) and its associated virtual hard disk (.hdd) currently reside on my BootApps partition on a PCIe SSD which is backed up by cloning. I am considering moving the .pvm to a "Master" or "Docs" partition on a RAID to free up space on my boot partition. That "Master" and "Docs" partitions (about 350 GB each) are archived by QRecall. Archives are performed daily only @ 0300h or perhaps manually if substantial new files are added to my Mac. The Virtual machine is run only 1-2 times/month; the associated ".hdd" file is currently 45 GB.
In the "Help" file on "Shifted Quanta Detection" you indicate that "Many files (log files, disk images, virtual machine files, and so on) do not benefit at all from shifted quanta detection."
My question therefore related to how QRecall will handle the relatively infrequent changes in my "Virtual" hard drive (.hdd). If I enable "Shifted Quanta Detection" in the archive preferences, will that add hours to the nightly backups? Is it of any benefit?
Parallels apparently has an option to split the ".hdd" into 2 GB files: would that avoid archiving the entire 45 GB ".hdd" file every time it's changed? (The archive is on a 4 TB, USB-3 volume).
Thanks,
Jon