Create Virtual Devices With Perccli; Verify The Storage And Disk Controller Status - Dell EMC VxFlex Ready Node 14G Manual

Preparing Disks

Create virtual devices with PERCCLI

Verify the storage and disk controller status

Hardware Configuration and Operating System Installation Guide - ESXi Servers
56
Create virtual devices (VDs) on disks using the PERCCLI utility. You need to perform
this step before adding disks to a VxFlex OS SDS server in the VxFlex Ready Node
system.
Note
If the server contains the HBA330 controller, skip this step.
When creating virtual devices, note the following:
You create one virtual device for each kind of disk, HDD or SSD.
l
The VDs for HDD are configured with Direct IO, write-back, and read-ahead
l
enabled (abbreviated in PERCCLI as RWBD).
The VDs for SSD are configured with Direct IO and write-through, but read-ahead
l
is not enabled. (Abbreviated in PERCCLI as NRWTD.)
In the PERCCLI commands that follow, the controller ID is assumed to be 0,
designated by /c0. In some cases, the controller ID may be different, which will cause
a Controller 0 not found error to be displayed. If this occurs, determine your
controller ID by running the following command:
cd /opt/lsi/perccli/; ./perccli show
The controller ID is displayed in the System Overview section of the output, in the
Ctl column.
The following table lists different disk configurations on a VxFlex Ready Node server:
Node contains
HDD for storage
Mix of HDD and SSD for storage
Mix of HDD and SSD, where some
HDDs or SSDs are for storage and
others provide acceleration
Before creating VDs, you must gather some information on the disks/devices on each
node.
Before creating virtual devices (VDs), verify the storage and disk controller status.
Before you begin
Before using PERCCLI, ensure that your working directory is /opt/lsi/perccli/.
If it is not, run:
cd /opt/lsi/perccli/
In this task, use the PERCCLI utility to perform the following tasks:
Verifying that all the disks are in UGood (unconfigured, but good) status
l
Caching options
NA
Caching not used
RFcache