Administrator Guide

Field Description
Snapshot reserve Amount of space reserved for snapshots. If data reduction has been enabled on this
container, snapshot reserve is permanently removed from this NAS container, and this
value is not applicable.
Used by snapshots Amount of NAS container space used by snapshots
Free snapshot reserve Amount of snapshot reserve not used by snapshots. If data reduction has been enabled on
this container, snapshot reserve is permanently removed from this NAS container, and this
value is not applicable.
Table 394. Data Reduction Information
Field Description
Container Name of the NAS container
Total capacity Total capacity of the container
Data reduction Status of data reduction on the container. Possible values are:
• Enabled — Data reduction is currently enabled on the container. Select the Enable
data reduction checkbox to activate the Modify policy button. Enabling data
reduction permanently removes the snapshot reserve functionality from the NAS
container.
• Disabled — Data reduction has never been enabled on the container.
• Was Enabled — Data reduction was previously enabled, but is not currently enabled on
the container. Select the Enable data reduction checkbox to activate the Modify
policy button. Enabling data reduction permanently removes the snapshot reserve
functionality from the NAS container.
Data reduction space savings Amount of space saved through data reduction
Compression Whether or not compression is congured for this container. Possible values are:
• True — Compression is enabled on the container. Use compression with text les to
increase storage space eciency. Compression does not increase storage space
eciency with binary les, such as audio and video les.
• False — Compression is not enabled.
Access time lter Minimum time since the last access time before les on this container qualify for data
reduction.
The access time is the minimum number of days that must pass since the le was last
accessed before the le can be data reduced. This value must be in the range of 5 to 365,
inclusive. By default, this value is 30 days. The status of the lter is listed as File
filters…disabled if the ignore-lters option was set through the CLI. If the status is
File filters…disabled, any lters that have been congured through the GUI (or
CLI) for Access Time or Modify Time have been disabled and all les are candidates for
data reduction. Specifying the ignore-filters ag enables data reduction on a
container with archive data without waiting for the minimum Access Time/Modify Time
data-reduction policy. Dell recommends that you not use this setting on containers with live
data. That is, you should use this setting only on containers with archive data.
Modify time lter Minimum time since the last modify time before les on this container qualify for data
reduction.
The modify time is the minimum number of days that must pass since the le was last
modied before the le can be data reduced. This value must be in the range of 5 to 365,
inclusive. By default, this value is 30 days. The status of the lter is listed as File
filters….disabled if the ignore-lters option was set through the CLI. If the status is
File filters…disabled, any lters that have been congured through the GUI (or
512
Reference: GUI Panels, Wizards, and Dialog Boxes