46 | Dell EMC VxRail Appliance Operations Guide
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Disabling deduplication and compression
Deduplication and compression are typically enabled for the cluster at the time of install and
remains enabled. If you need to disable this data services, consider the following:
When deduplication and compression are disabled, the size of the used capacity in the
cluster expands based on the deduplication ratio. Before you disable deduplication and
compression, verify that the cluster has enough capacity to handle the size of the expanded
data.
When disabling deduplication and compression, vSAN changes disk format on each disk
group of the cluster. To accomplish this change, vSAN evacuates data from the disk group,
removes the disk group, and recreates it without deduplication and compression. This adds
workload overhead to the system. The time required for this operation depends on the
number of hosts in the cluster and amount of data. You can monitor the progress on the
vCenter Tasks and Events tab.
Procedure
1. Navigate to the vSAN host cluster in the vSphere Web Client and click the
Configure
tab.
2. Under vSAN, select
General
.
3. In the vSAN is turned ON pane, click the
Edit
button.
4. Set the disk claiming mode to
Manual
.
5. Set deduplication and compression to
Disabled
.
6. Click
OK
to save your configuration changes.
Monitoring deduplication and compression
You can monitor the efficiency of deduplication and compression from the storage view within
the vCenter web client. This view shows the total capacity used both before and after
compression and after compression as well as a breakdown of how the used capacity is
consumed.
Summary of Contents for VxRail Appliance
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