Dell PowerVault NX1950 - Manual (Page 49)

Detailed End-to-End iSCSI Setup 49
• Rollback—Use this option to rollback an iSCSI Virtual Disk to a previous
Snapshot. This operation uses the temp directory located at
C:\Windows\Temp. Ensure that the temp directory contains sufficient
space to store the differential data. The rollback fails if enough space. is
not available.
a Right-click on the snapshot and select Rollback to Snapshot. In the
pop-up message, select Yes.
b To check the status of rollback, go to the Devices tab. The rollback
progress is displayed in % (percentage) in the Virtual Disk section of
the middle-pane.
c You can also abort a rollback operation. Abort a rollback, if you can
rollback to a different snapshot. Otherwise it is highly recommended
that you allow the rollback to complete.
NOTE: If you rollback, all data on the current Virtual Disk is lost. Disconnect
all iSCSI Targets from initiator that are using this Virtual Disk. If the Virtual Disk
mounted as a read/write disk, dismount the Virtual Disk before the rollback.
Disconnecting/Cleaning Up iSCSI Devices
This section describes the procedure for cleanup operations to be performed
on iSCSI devices. You must perform the procedure cleanup operations on
both iSCSI Target and ISCSI Initiator.
From Initiator
Disconnect an active connection with Target by stopping the iSCSI
I/O operations that are running on that Target device by performing the
following steps:
1 Go to Start→ All Programs→ Microsoft iSCSI Initiator→ iSCSI
Initiator Properties→ Targets tab.
2 Select the Target that is Connected and select Details.
3 The Target Properties screen appears. In the Sessions tab, select the check
box beside the Identifier and click Logoff. The connection is disconnected.
4 In the iSCSI Initiator Properties screen, go to Persistent Targets tab and
remove entries of persistent Targets.