Dell PowerVault NX1950 - Manual (Page 46)

46 Detailed End-to-End iSCSI Setup
3 After making necessary changes, click OK.
NOTICE: Although you do not change the default settings, go to Volume→
Properties→ Shadow Copies→ Settings and click OK. Perform this action especially
in a PowerVault NX1950 cluster solution to ensure proper Snapshot recovery in the
event of cluster node failure. Active snapshots may be lost on account of a cluster
node failure, if you do not have enough space or if you have not configured the
Snapshots properly. When the Snapshot size exceeds the maximum size of the
storage area, the oldest snapshot is deleted.
NOTE: Each volume can have up to 512 snapshots for iSCSI Virtual Disks,
irrespective of the number of Virtual Disks created in the volume. Snapshots are
space efficient because they are differential copies.
Scheduling Snapshots
To Schedule Snapshots for iSCSI Virtual Disks, perform the following steps:
1 Go to PowerVault NX 1950 Management Console→ Microsoft iSCSI
Software Target.
2 Go to the Snapshots tab, right-click Schedules and select Create
Schedule.
3 The Welcome to the Schedule Snapshot Wizard screen is displayed.
Click Next.
4 The Schedule Actions screen is displayed and the following options are
available:
Take snapshots of the Virtual Disks (default)
Take snapshots of the Virtual Disks and mount the
snapshots locally
Select one option and click Next.
5 In a PowerVault NX1950 cluster solution, the Resource Group screen is
displayed. Select the Resource Group as Cluster Group from the
drop-down menu. If your system is configured with 3.1 iSCSI Target, select
the Resource Group as iSCSI HA instance from drop-down menu.
6 In the Name screen, enter a Schedule name and click Next.