Information Technology Reference
In-Depth Information
Storage DRS Maintenance Mode Doesn't Affect Templates and ISOs
When you enable SDRS maintenance mode for a datastore, recommendations are generated for
registered VMs. However, SDRS maintenance mode will not aff ect templates, unregistered VMs,
or ISOs stored on that datastore.
In addition to using the Add Storage dialog box we showed you earlier in this section, you
can use drag and drop to add a datastore to an existing datastore cluster. Note, however, that
drag and drop won't warn you that you're adding a datastore that doesn't have connections to
all the hosts that are currently connected to the datastore cluster, so we generally recommend
using the Move Datastores Into Datastore Cluster dialog box shown in Figure 12.30.
Let's now take a more in-depth look at coni guring SDRS to work with the datastore cluster(s)
that you've created.
Confi guring Storage DRS
All of the coni guration for SDRS is done from the Manage
➢
Settings pane. You'll open the set-
tings pane box by right-clicking a datastore cluster and selecting Settings or by clicking Settings
on the Manage tab of a datastore cluster. Both methods will give you the same result. Within
this pane, click the Edit button at the top right of the pane.
From the settings pane, you can accomplish the following tasks:
Enable or disable SDRS
◆
Coni gure the SDRS automation level
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Change or modify the SDRS runtime rules
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Coni gure or modify custom SDRS schedules
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Create SDRS rules to inl uence SDRS behavior
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Coni gure per-VM SDRS settings
◆
The following sections examine each of these areas in more detail.
Enabling or Disabling Storage DRS
From the Edit dialog box, you can easily enable or disable SDRS. Figure 12.32 shows this area of
the Edit dialog box. From here, you can enable SDRS by selecting Turn ON vSphere Storage DRS.
If Storage DRS is already enabled, you can deselect Turn ON vSphere Storage DRS to disable it.
If you disable SDRS, the SDRS settings are preserved. If SDRS is later reenabled, the coni gura-
tion is returned to the point where it was when it was disabled.
