Users Guide

Simple Target and LUN Naming
The VDS provider implements the simple target configuration. When you use Storage Manager for SANs to create a LUN, the
VDS provider automatically creates an iSCSI target and associates that target with the LUN. When you delete a LUN, VDS
deletes the associated iSCSI target. You cannot independently manage LUNs and targets.
A target’s iSCSI name and friendly name is based on the LUN name for ease of use. Because the LUN name is not specified at
LUN creation time, the VDS provider delays setting these target names to allow the creator to first set a more descriptive LUN
name. Dell recommends that VDS clients set the friendly name before querying the target properties so that the desired friendly
name can be used in the target name. When a VDS client has queried the properties of the associated target, the iSCSI name
cannot be changed even if the LUN name is updated. The target’s friendly name will continue to be updated on LUN name
changes so the two values match.
When using Storage Manager for SANs or diskraid to create a LUN, the LUN-friendly name is correctly set before the target is
created. If you use Storage Manager for SANs to create multiple LUNs, wait until each LUN is created and displayed before
creating any additional LUNs. This waiting avoids a situation in which two LUNs are created and renamed simultaneously, which
can result in the target name on the second LUN being created before the LUN name is set.
Import VSS Snapshots
To import VSS snapshots of a volume that you created by using Storage Manager for SANs, the computer must present access
credentials. The credentials must match an access control record that you configured in the PS Series group for all snapshots
related to the volume:
1. Configure an access control record in the PS Series group that applies to the target volume’s snapshots.
2. (Optional) Configure a local CHAP account in the PS Series group only if you protected access to snapshots by using CHAP,
select one of the following methods:
● Specify the same CHAP user name and password that you specified when you created the volume.
● Specify different credentials.
3. Specify the CHAP user name and password when prompted, or use ASM/ME to specify the user name and password in the
Properties Password dialog box.
This user name and password now applies to all VSS snapshots created in the group and accessed from the computer.
Adjustments After Access Control Modifications
If you change access controls related to Microsoft service access to the PS Series group, or computer access to VSS
snapshots, be sure to make the necessary changes on both the computer and the group as follows:
● For volumes created by using Storage Manager for SANs, use the same method to change the access controls on both the
computer and the group.
● For VSS snapshots of volumes created with Storage Manager for SANs:
○ Use the Group Manager GUI or CLI to modify the snapshot access control records and CHAP accounts, if CHAP is used.
○ On the computer, use the ASM/ME Properties Password dialog box to specify the CHAP user name and password.
● For Microsoft service access to the group:
○ Use the Remote Setup Wizard to modify the computer configuration.
○ In the group, use the Group Manager GUI or CLI to modify VSS/VDS access control records and CHAP accounts, if
CHAP is used.
Create a Volume Using Storage Manager for SANs
To use Storage Manager for SANs to create a volume in a PS Series group, configure the group and install the VDS provider.
Volumes created with Storage Manager for SANs use the default groupwide volume snapshot settings for snapshot space,
warning level, and action to take when snapshot space is exceeded. You can use the Group Manager GUI or CLI to change the
snapshot settings.
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Use the VDS Provider