Users Guide

• Storage controller — PERC

• Physical disks (SEDs) — 4

• Size of each physical disk — 1 TB

Create the following RAID configuration:

• Size of each virtual disk: 10 GB (10240 MB)

• Number of virtual disks — 10

• RAID level — 5

• Dedicated hot spare — 1

• Enable encryption on the controller and create a local key

To configure RAID:

1. Get the list of storage controllers attached to the system and their properties.

Verify and note down the status of following controller parameters for later use:

– Fully Qualified Device Descriptor (FQDD) of the controller

– Security Status

– Encryption Mode

– Key ID

2. Get the FQDDs and values of the physical disks attached to the controller.

3. Run the CreateVirtualDisk() method after setting the correct values in the following table.

Table 9. Values for the RAID Setup

Parameter Value

FQDD FQDD of the controller and the attached physical disks

RAID Level Set RAID level as 5.

RAID 5 stripes data across the physical disks, and uses parity information to maintain

redundant data. If a physical disk fails, the data is rebuilt using the parity information. RAID 5

offers good read performance and slower write performance with good data redundancy.

Span Depth Set the value as 1.

Span Length Set the value as 3.

The span length value refers to the number of physical disks included in each span. This is

calculated by dividing the number of physical disks by the span depth value.

Size Set 10240 MB for each virtual disk.

Starting LBA Calculate the starting LBA based on existing virtual disks. To calculate next StartingLBA in

512 byte blocks, use the following formulas:

NOTE: This is required only when there are sliced virtual disks.

– RAID0 — Previous StartingLBA + ((Size / # of Drives) / 512)

– RAID1 — Previous StartingLBA + (Size / 512)

– RAID5 — Previous StartingLBA + ((Size / (# of Drives - 1)) / 512)

– RAID6 — Previous StartingLBA + ((Size / (# of Drives - 2)) / 512)

– RAID10 — Previous StartingLBA + ((Size / 2) / 512)

– RAID50 — Previous StartingLBA + ((Size / (# of Drives per span - 1)) / 512)

– RAID60 — Previous StartingLBA + ((Size / (# of Drives per span - 2)) / 512)