12 Introduction
Advanced Features
Advanced features for the PowerVault MD3600f and MD3620f RAID storage
systems include:
•
Snapshot Virtual Disk
—Captures point-in-time images of a virtual disk
for backup, testing, or data processing without affecting the contents of
the source virtual disk.
•
Virtual Disk Copy
—Generates a full copy of data from the source virtual
disk to the target virtual disk in a storage array. You can use Virtual Disk
Copy to back up data, copy data from disk groups that use smaller-capacity
physical disks to disk groups using greater capacity physical disks, or restore
snapshot virtual disk data to the source virtual disk.
•
Upgrading to High-Performance Tier
—Increases the performance of the
system beyond that of a MD36
x
0f series array operating at the standard
performance level.
•
Remote Replication
—Enables real-time replication of data between two
storage arrays in separate locations.
NOTE: For more information on deploying the correct options in the cluster
environment, see "Using Advanced (Premium) PowerVault Modular Disk
Storage Manager Features" on page 63.
Supported Cluster Configurations
The following sections describe the supported cluster configurations.
Direct-Attached Cluster
In a direct-attached cluster, all the nodes of the cluster are directly attached
to a single storage system. In this configuration, the RAID controllers on the
storage system are connected by cables directly to the Fibre Channel HBA
ports in the nodes.
Figure 1-1 shows a basic direct-attached, single-cluster configuration.
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