12.5 VTL Status
Category Description
Deduplicated Partitions (ETERNUS CS800 VTL and Multi-Protocol configurations
only) The amount of data stored in deduplicated
partitions. This includes incoming data from Cartridge
Based Replication, and incoming data from Failback
replication.
OST Storage Servers (ETERNUS CS800 NAS and Multi-Protocol configurations
only) The amount of data stored in deduplicated
OpenStorage (OST) storage servers. This includes
incoming data for OST and ETERNUS CS800 Accent.
Data After Reduction
The Data After Reduction value represents the final, reduced size of all data that has been
processed by the data deduplication and compression engines.
Data after reduction is divided into the following categories:
Category Description
Total Reduction Ratio The total reduction ratio of all data that has been
processed by the data deduplication and compression
engines (Data Before Reduction divided by Data After
Reduction).
Deduplication Ratio The deduplication ratio of all data that has been
processed by the data deduplication engine.
Compression Ratio The compression ratio of all data that has been processed
by the compression engine.
12.5 VTL Status
The VTL Status page allows you to view information about virtual tape library (VTL)
components, including tape drives, storage slots, and cartridges. You can view a physical
or logical representation of VTL components, or view VTL performance statistics.
For information about creating VTLs, see "Adding a VTL Partition" on page 206.
To access the VTL Status page, click the Status menu, and then click the VTL tab.
The VTL Status page contains the following tabs:
l "Physical View" on page 397
l "Logical View" on page 398
l "Performance View" on page 399
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