Managing storage


Managing storage
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Configure the storage disks to save the application data.

VMware virtualization manages the application data by storing it on SAN LUNs (RDM file), or creating virtual disks on a local or networked storage attached to the ESX host using iSCSI, network, or Fibre Channel. The virtual disks reside on a datastore or a raw disk that exists on the storage disks used.

For more information, refer to the VMware documentation.

The application monitoring configuration in a VMware environment requires you to use the RDM or VMDK disk formats. During a failover, these disks can be deported from a system and imported to another system.

Consider the following to manage the storage disks:

Use a networked storage and create virtual disks on the datastores that are accessible to all the ESX servers that hosts the VCS cluster systems.
In case of virtual disks, create non-shared virtual disks (Thick Provision Lazy Zeroed).
Add the virtual disks to the virtual machine on which you want to start the configured application.
Create volumes on the virtual disks.

Note:

If your storage configuration involves NetApp filers that are directly connected to the systems using iSCSI initiator, you cannot configure application monitoring in a virtual environment with non-shared disks.

For more details on creating the volumes on the virtual disks, refer to the respective application configuration guide.

The following VCS storage agents are used to monitor the storage components involving non-shared storage:

If the storage is managed using SFW, the MountV, VMNSDg, and VMwareDisks agents are used.
If the storage is managed using LDM, the Mount, NativeDisks, and VMwareDisks agents are used.

Before configuring the storage, you can review the resource types and attribute definitions of these VCS storage agents. For details refer to the Symantec Cluster Server Bundled Agents Reference Guide.