User`s guide

RS16 FS – Manual v.6.1A
- 38 -
#Snapshot
Number of snapshot(s) that Virtual disk is taken.
RG name
The Virtual disk is related to the RG name
• VD operations description:
Extend
Extend a Virtual disk capacity.
Scrub
Scrub a Virtual disk. It’s a parity regeneration. It
supports RAID 3 / 5 / 6 / 30 / 50 / 60 only.
Delete
Delete a Virtual disk.
Set property
Change the VD name, right, priority and bg rate.
Right options:
“WT” Æ Write Through.
“WB” Æ Write Back.
“RO” Æ Read Only.
Priority options:
“HI” Æ HIgh priority.
“MD” Æ MiD priority.
“LO” Æ LOw priority.
Bg rate options:
“4 / 3 / 2 / 1 / 0” Æ Default value is 4. The higher
number the background priority of a VD has, the
more background I/O will be scheduled to
execute.
Attach LUN
Attach to a LUN.
Detach LUN
Detach to a LUN.
List LUN
List attached LUN(s).
Set snapshot
space
Set snapshot space for executing snapshot. Please
refer to next chapter for more detail.
Cleanup
snapshot
Clean all snapshot VD related to the Virtual disk and
release snapshot space.