12.4 Disk Usage
Used
Used space is the area that already holds data. The Used value is displayed as an amount
and as a percentage of the total capacity in the system.
Used space is divided into the following categories:
Category Description
Deduplicated Data The amount of data that has been deduplicated.
Data Not Intended For
Deduplication
The amount of data that will not be deduplicated (data
on shares or partitions that do not have deduplication
enabled).
System Metadata The amount of disk space used for internal operations of
the ETERNUS CS800, including system configuration files
as well as temporary files created during replication,
space reclamation, and healthchecks.
Data Before Reduction
The Data Before Reduction value represents the original, native size of all data that has
been processed by the data deduplication and compression engines.
Data before reduction is divided into the following categories:
Category Description
Incoming Replication The amount of data stored on the ETERNUS CS800 via
replication from another ETERNUS CS800. This does not
include incoming data from Directory/File or Cartridge
Based Replication, or incoming data from Failback
replication.
NFS Deduplicated Shares (ETERNUS CS800 NAS and Multi-Protocol configurations
only) 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/SMB Deduplicated Shares (ETERNUS CS800 NAS and Multi-Protocol configurations
only). The amount of data stored in deduplicated shares
configured in Common Internet File System (CIFS/SMB),
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.
ETERNUS CS800 395
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