Information Technology Reference
In-Depth Information
Figure 12.34
Storage DRS pres-
ents a list of initial
placement recom-
mendations when-
ever a new virtual
disk is created.
Recommendations for storage migrations are noted in two different ways. First, an alarm
is generated to note that an SDRS recommendation is present. You can view this alarm on the
Monitor
➢
Issues tab of the datastore cluster in Storage view. The alarm is shown in Figure 12.35.
Figure 12.35
h is alarm on the
datastore cluster
indicates that an
SDRS recommenda-
tion is present.
➢
Storage DRS tab of the datastore cluster (visible in Storage view, as
shown in Figure 12.36) will list the current SDRS recommendations and give you the option to
apply those recommendations—that is, initiate the suggested Storage vMotion migrations.
When SDRS is coni gured for Fully Automated mode, it will automatically initiate Storage
vMotion migrations instead of generating recommendations for the administrator to approve. In
this instance, you can use the Monitor
In addition, the Monitor
➢
Storage DRS tab of the datastore cluster to view the his-
tory of SDRS actions by selecting the History button at the top of the Storage DRS tab. Figure 12.37
shows the SDRS history for the selected datastore cluster.
To modify how aggressive SDRS is when running in Fully Automated mode, expand the
rules section of the Edit dialog box, described in the next section.
Modifying the Storage DRS Runtime Behavior
In the SDRS Edit dialog box, you have several options for modifying the behavior of SDRS.
First, if you'd like to tell SDRS to operate only on the basis of space utilization and not I/O
utilization, simply deselect Enable I/O Metric For SDRS Recommendations. This will tell SDRS
