User Guide

User Guide
Appendix A: Dell PowerEdge RAID Controller (PERC) S100, PERC S300 User's Guide

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Appendix A

Dell PowerEdge RAID Controller (PERC) S100, PERC S300 User's Guide

  Controller Specifications

  Controller Tasks

  Physical Disk Tasks

  Virtual Disk Tasks

  Supported RAID Levels

  Virtual Disk Specifications



Controller Specifications

This section contains information about the Dell PowerEdge RAID Controller (PERC) S100 and S300 adapter specifications:

  • Read, write, and cache policy

  • Physical and virtual disk tasks

  • Virtual disk specifications

  • Supported RAID levels

Read, Write, and Cache Policy

Table A-1 indicates the read, write, and cache policies that are supported/not supported by the PERC S100 Adapter and PERC S300 adapter.

Table A-1. Read, Write, and Cache Policy for the PERC S100 adapter and
PERC S300 adapter

Category

Supported by PERC S100 Adapter, PERC S300 adapter

Cache Settings

Yes

Read/Write

Yes

Read Only

Yes

None (Read/Write)

Yes

CAUTION: The current default for Write-Cache mode enablement is
Write Through, Non Read Ahead (WT, NRA). To enable Write Back (WB), a UPS is recommended.

Controller Tasks

Table A-2 indicates the tasks that are supported or not supported by the PERC S100 Adapter and PERC S300 adapter.

Table A-2. PERC S100 Adapter and PERC S300 Adapter Tasks

PERC S100 adapter or
PERC S300 adapterTask Name

Supported by PERC S100 adapter,
PERC S300 adapter

Enable alarm

No

Disable alarm

No

Quiet alarm

No

Test alarm

No

Set check consistency rate

No

Rescan controller

No

Create virtual disk

Yes


Physical Disk Tasks

Table A-3 indicates the physical disk tasks that are supported/not supported by the controllers at the PERC Virtual Disk Management utility.

NOTE: Unless mentioned otherwise, the term PERC Virtual Disk Management utility refers to both the PERC S100 Virtual Disk Management utility and the PERC S300 Virtual Disk Management utility.

Table A-3. Physical Disk Tasks

Physical Disk Task Name

Supported by PERC S100 adapter, PERC S300 adapter

Blink/Unblink

Only with a system that has a
PERC S300 adapter and a backplane

Assign and unassign global hot spare

Yes


Virtual Disk Tasks

Table A-4 indicates the virtual disk tasks that are supported/not supported by the controllers.

Table A-4. Virtual Disk Tasks 

Virtual Disk Task Name

Supported by PERC S100 adapter, PERC S300 adapter

Assign and unassign dedicated hot spare

Yes

Create virtual disk

Yes

Reconfigure

Yes

Delete (any) virtual disk

Yes

Start a check consistency

Yes

Cancel check consistency

Yes

Initialize virtual disk

No (if using the PERC Virtual Disk Management utility)

Yes (if doing a BGI in Storage Management)


Supported RAID Levels

Table A-5 indicates the RAID levels that are supported by the PERC S100 Adapter and PERC S300 adapter.

Table A-5. Supported RAID Levels for the PERC S100 adapter and
PERC S300 adapter

RAID Level

Supported by PERC S100 adapter,
PERC S300 adapter

Volume

Yes (only when using the PERC Virtual Disk Management utility)

RAID 0

Yes

RAID 1

Yes

RAID 5

Yes

RAID 10

Yes


Virtual Disk Specifications

Table A-6 indicates the virtual disk specifications that apply to the
PERC S100 Adapter and PERC S300 adapter.

Table A-6. Virtual Disk Specifications for the PERC S100 adapter and
PERC S300 adapter

Virtual Disk Specification

Value

Maximum number of virtual disks per controller

8

Minimum virtual disk size

102 MB

Maximum virtual disk size

No maximum size; there may operating system size limitations

Maximum number of physical disks per virtual disk

8

Maximum number of virtual disks per physical disk

8

Maximum number of physical disks that can be concatenated

N/A

Maximum number of physical disks in a Volume

1

Maximum number of physical disks in a RAID 0

8

Maximum number of physical disks in a RAID 1

2

Maximum number of physical disks in a RAID 5

8

Maximum number of physical disks in a RAID 10

8

Minimum number of physical disks that can be concatenated

N/A

Minimum number of physical disks in a Volume

1

Minimum number of physical disks in a RAID 0

2

Minimum number of physical disks in a RAID 1

2

Minimum number of physical disks in a RAID 5

3

Minimum number of physical disks in a RAID 10

4


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