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| 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 either LVM logical volumes or VxVM volumes.
Mount the volumes on the mount point.
The following VCS storage agents are used to monitor the storage components involving non-shared storage:
If the storage is managed using LVM, the LVMVolumeGroup and LVMLogicalVolume agents are used.
If the storage is managed using VxVM, the DiskGroup and Volume 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 Cluster Server Bundled Agents Reference Guide.