Dell S100 Appendix a, Controller Specifications, Read, Write, and Cache Policy, S300 adapter

A

Appendix A

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.

Appendix A

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