Quantum DXi8500, User Manual

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Chapter 7: DXi8500 Status
Disk Usage
242 Quantum DXi8500 User’s Guide
Data before reduction is divided into the following categories:
• Incoming Replication - The amount of data stored on the DXi via
replication from another DXi. This does
not
include incoming data
from Directory/File or Cartridge Based Replication, or incoming data
from Failback replication.
• NFS Deduplicated Shares - The amount of data stored in
deduplicated shares configured in Network File System (NFS) format
for Linux systems. This includes incoming data from Directory/File
Based Replication, and incoming data from Failback replication.
• CIFS Deduplicated Shares - The amount of data stored in
deduplicated shares configured in Common Internet File System
(CIFS), also known as Server Message Block (SMB), format for
Windows systems. This includes incoming data from Directory/File
Based Replication, and incoming data from Failback replication.
• Deduplicated Partitions - 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 - The amount of data stored in deduplicated
OpenStorage (OST) storage servers. This includes incoming data for
OST and DXi 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:
•
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.