Dell EMC ScaleIO Ready Node 14G Manual page 62

Preparing Disks to add to a ScaleIO SDS
Hardware Configuration and Operating System Installation Guide - ESXi Servers
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3. Verify that all the devices have a virtual device created on them.
In the Drive Information output, the device state displayed as "Onln" in the
State column shows that the device has a virtual device created on it.
4. Display device group (DG) and virtual device (VD) information:
/opt/lsi/perccli/perccli /c0/vall show
Output similar to the following is displayed:
Note
In the above example, DAS Cache is not used.
5. Verify that all the VDs are configured correctly.
The following values should appear in the display:
Cache = NRWTD (for SSDs)
l
Cache = RWBD (for HDDs, no DAS Cache)
l
or