Configuring Storage : Configuring Snapshots and Proxy Backup : Configuring Application-Consistent Snapshots for a LUN
  
Configuring Application-Consistent Snapshots for a LUN
When configuring the snapshot schedule of a specific LUN, you can configure hourly, daily, or weekly application-consistent snapshots.
The procedure varies slightly, depending on the client type (VMware or Windows).
Note: To configure application-consistent snapshots for the current LUN, you must specify either VMware or Windows for the client type.
To configure application-consistent snapshot settings
1. Choose Configure > Manage: LUNs to open the LUNs page.
2. From the list of configured LUNs, click the desired LUN to display controls and settings.
3. Select the Snapshots tab.
4. Within the Snapshots tab, select the Configuration tab.
5. In the General Settings panel, configure the settings using the controls in this table.
Control
Description
Add new Storage Array
Click to add a new storage array.
Handoff Host
Click to add a new handoff host.
Update Settings
Click to apply the modified settings.
Test Storage Array
Click to test the selected storage array to ensure that the specified credentials are correct and that the storage array is licensed for snapshots.
Client Type
Specify which kind of operating system mounts the LUN.
•  VMware - The LUN is mounted by the Microsoft Windows OS and is formatted using NTFS.
•  Windows - The LUN is mounted by the VMware ESXi OS and is formatted using VMFS.
•  Other - All other cases.
6. In the Application Consistent Snapshots panel, configure the settings using the controls in this table.
Note: Hints are available to help you specify regular expressions for VM names. To view the hints, hover over the phrase (regex) after the name field.
Control
Description
Enable
Select to enable application-consistent snapshots.
Branch Hostname
(VMware vCenter clients only)
From the drop-down menu, select one of the previously configured snapshot hosts. If no host has been configured, click Add New Host to access controls for doing so.
Data center Name
(VMware clients only)
Optionally, specify a data center for VMware-based application-consistent snapshots.
Include VMs
(VMware clients only)
Optionally, specify by regular expression the names of the virtual machines (VMs) to be included in the snapshot. For example:
•  To include VMs whose names begin with a specific prefix: ^2k3
•  To include VMs whose names end with a specific suffix: ova1$
•  To include VMs whose names start with a digit: ^\d
•  To include VMs with a specific name: 2k3vm_15g_ova1
•  To include VMs whose names have a particular format: 2k3v._15g*.ova
•  To include VMs whose names have a particular format: 2k3v.*ova
Exclude VMs
(VMware clients only)
Optionally, specify by regular expression the names of the VMs to be excluded from the snapshot. For example:
•  To exclude VMs whose names end with a specific suffix: ova1$
•  To exclude VMs that have a specific name: 2k3vm_15g_ova1
Quiesce Guest VM
(VMware clients only)
Enables or disables quiescing VMs in the application-consistent snapshots. This setting must be set to Yes for snapshots to be application consistent.
7. Click Update Settings to apply the modified settings.
8. Click Reset Settings to restore the previous settings.