Dell PowerEdge RAID Controller S100 Uživatelský manuál stáhnout pdf (Strana 77)

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.

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.

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

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Dell PowerEdge RAID Controller S100 Uživatelský manuál Strana 77