LSI 3ware SAS 9750-8i Guia do Utilizador descarregar pdf (Página 132)

Configuring Units

120 3ware SATA+SAS RAID Controller Card Software User Guide, Version 10.0

Using write journaling helps protect your data, however it can have an

impact on performance.

The Protection profile always enables write journaling and the

Performance profile always disables write journaling, regardless of the

presence of a BBU. The Balanced Profile disables write journaling if no

BBU is present, and enables write journaling if a BBU is present.

If write journaling is disabled and a BBU is present, then it is as if the

BBU was disabled for that unit.

•

Write cache disabled on degrade. In the event that a unit degrades, the

use of write cache can be disabled until the unit is rebuilt. Once the unit is

rebuilt, the write cache will automatically be re-enabled.

The Protection profile enables this feature, so that write cache is disabled

in the event a unit degrades; the Performance and Balanced profiles

disable this feature, so that write cache continues to be enabled.

Setting the StorSave Profile through 3DM 2

In 3DM 2, the StorSave Profile is a unit policy that can be set on the

Controller Settings page.

To set the StorSave profile through 3DM 2

1 Choose

Management > Controller Settings from the menu bar in

3DM 2.

2In the

Unit Policies section of the Controller Settings page, select the

profile you want to use from the drop-down list in the StorSave column.

The page refreshes, and a message at the top confirms the change you

have made.

Setting the StorSave Profile through 3BM

In 3BM, the StorSave Profile is set on the Configure Disk Array screen.

To set the StorSave Profile through 3BM

1 At the main 3BM screen, select the unit by highlighting it and pressing

Enter.

An asterisk appears in the left-most column to indicate that it is selected.

2Tab to the

Maintain Unit button and press Enter.

3 On the pop-up menu, select

Configure and press Enter.

4In the

Configure Disk Array screen, Tab to the field StorSave Profile.

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LSI 3ware SAS 9750-8i Guia do Utilizador Página 132

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