Acer SmartRAID V Manuel d'utilisateur télécharger pdf (Page 155)

6-43

Storage Manager

Background Task Priority

You can run rebuild and verification operations without taking an array

offline. These functions are performed as background tasks on the

SmartRAID V controller and are transparent to the host operating system.

However, the controller interleaves I/O from the operating system with I/O

from the background task and this can affect system performance. The

relative priority given to I/O from the operating system and the

background task can be controlled by selecting Options–Background

Task Priority.

The Task Priority section of the dialog assigns the background task

priority for all DPT controllers in the host computer. Set the Priority by

using the arrow buttons to move the indicator . The indicator moves

between Background and Foreground in ten increments.

If the indicator is closer to Background, background tasks are processed

only when there is no disk I/O from the host for a period of at least 250

milliseconds. As the indicator is moved toward Foreground, more of the

controller resources are allocated to background tasks. All of the

resources are allocated to background tasks during periods when there is

no disk I/O from the host system.

1 2 ... 150 151 152 153 154 155 156 157 158 159 160 ... 255 256

Pas de commentaire

Acer SmartRAID V Manuel d'utilisateur Page 155