Information Technology Reference
In-Depth Information
8.
If you didn't want to use or couldn't use all of the free space on the underlying LUN, you
could change the capacity from Maximize Available Space to Custom Space Setting and
specify the amount. Generally, you will leave the default of Maximize Available Space
selected. Click Next.
9.
Review the summary information, and if everything is correct, click Finish.
If you added an extent to the datastore, the datastore properties pane in Datastores And
Datastore Clusters view will rel ect the fact that the datastore now has at least two extents. This
is also shown in the Datastore Properties dialog box, as you can see in Figure 6.38.
Figure 6.38
h is 20 GB data-
store actually com-
prises two 10 GB
extents.
Regardless of the procedure used to expand the datastore, it is nondisruptive—there is no
need to evacuate VMs or incur downtime.
Another nondisruptive task is upgrading a datastore from VMFS-3 to VMFS-5, a procedure
that we describe in the following section.
Upgrading a Datastore from VMFS- to VMFS-
As we described in “Examining the vSphere Virtual Machine File System,” vSphere 5.0 intro-
duced a new version of VMFS called VMFS-5. VMFS-5 offers a number of new features. To take
advantage of these new features, you'll need to upgrade your VMFS datastores from VMFS-3 to
VMFS-5. Keep in mind that upgrading your datastores to VMFS-5 is required only if you need
to take advantage of the features available in VMFS-5.
To help vSphere administrators keep clear about which datastores are VMFS-3 and which
datastores are VMFS-5, VMware added that information in multiple places through the vSphere
Web Client. Figure 6.39 shows the Coni guration tab for an ESXi host; note that the datastore
listing in the Storage section includes a column for VMFS version.
Figure 6.39
h e columns in the
Datastores list can
be rearranged and
reordered, and they
include a column
for VMFS version.
