Users Guide

ManualsBrandsDell ManualsActive System ManagerOpenManage Server Administrator Version 8.1

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NOTE: For RAID 10 creation, PERC 9 firmware suggests the layout (number of array disks) with

uneven span (spans with unequal number of array disks), though in a span the number of disks

remains even. For example, for 32 disks, RAID 10 gets created with all the disks in one span and for

34 disks, RAID 10 gets created with 16 disks in one span and 18 disks in the other span.

Example Syntax:

You can create a RAID-5 virtual disk of 500 MB with a stripe size of 16 KB on a PERC 3/QC controller. The

name of the virtual disk is vd1 and it resides on connector 0 of controller 1. Because the virtual disk is a

RAID-5, it requires at least three physical disks. In this example, you specify four physical disks. These are

physical disks 0 through 3. The virtual disk has read-ahead, write–through caching, and cache I/O

policies.

To create a virtual disk:

omconfig storage controller action=createvdisk controller=1 raid=r5 size=500m

pdisk= 0:0,0:1,0:2,0:3 stripesize=16kb cachepolicy=c readpolicy=ra

writepolicy=wt

The only parameters that require specification are for the controller, RAID level, virtual disk size, and

physical disk selection. Storage Management supplies default values for all other unspecified parameters.

For more information on read, write, and cache policies that are supported by the controller, see the Dell

OpenManage Online Help.

Parameter specification for creating and reconfiguring virtual disk

The following table displays how to specify the omconfig storage controller action=createvdisk

parameters:

Table 88. Parameters And Types

Parameters Type

controller=id Required

raid=<c | r0 | r1 | r1c | r5 | r6 | r10 | r50 | r60> Required

size=<number | max | min> Required

pdisk=<connector:targetID,connector:targetID,.....

Required

[stripesize=<2k b| 4kb | 8kb | 16kb | 32kb | 64kb |

128kb>]

Optional

[cachepolicy=<d | c>] Optional

[readpolicy=<ra | nra | ara | rc | nrc>] Optional

[writepolicy=<wb | wt | wc | nwc | fwb>] Optional

[name=<string>] Optional

[spanlength=<n>] parameter Optional

controller=id parameter

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