User manual

iSCSI GbE to SAS/SATA II RAID Subsystem
User Manual
75
Delete Delete a Virtual disk.
Set property Change the VD name, right, priority, bg rate and read
ahead.
Right:
 “WT”  Write Through.
 “WB”  Write Back. (Default)
 “RO”  Read Only.
Priority:
 “HI”  HIgh priority. (Default)
 “MD”  MiDdle priority.
 “LO”  LOw priority.
Bg rate:
 “4 / 3 / 2 / 1 / 0”  Default value is 4. The
higher number the background priority of a VD is,
the more background I/O will be scheduled to
execute.
Read ahead:
 “Enabled”  Enable disk read ahead. (Default)
 “Disabled”  Disable disk read ahead.
AV-media mode:
 “Enabled”  Enable AV-media mode for optimizing
video editing.
 “Disabled” 
Disable AV-media mode. (Default)
Type:
 “RAID”  the virtual disk is normal. (Default)
 “Backup”  the virtual disk is for clone usage.
Attach LUN Attach to a LUN.
Detach LUN Detach to a LUN.
List LUN List attached LUN(s).
Set Clone Set the target virtual disk for clone.
Clear Clone Clear clone function.
Start Clone Start clone function.
Stop Clone Stop clone function.
Schedule Clone Set clone function by schedule.
Set snapshot
space
Set snapshot space for executing snapshot. Please refer
to next chapter for more detail.