Lenovo ThinkServer RD330 MegaRAID SAS Software User Guide - Page 133

Enclosure Affinity, Prepare for Removal, Ready to Remove, Powersave, Controller Properties, Battery

Page 133 highlights

MegaRAID SAS Software User Guide Chapter 4: WebBIOS Configuration Utility | Viewing and Changing Device Properties 4.8.4 Viewing and Changing Battery Backup Unit Information WebBIOS displays the global hot spare as Global and the dedicated hot spare as Ded. The icon for the dedicated hot spare displays under its associated virtual drive. The drive number, drive state, drive capacity, and drive manufacturer display.  Select Enclosure Affinity so if there are drive failures present on a split backplane configuration, then the hot spare will be used first on the backplane side that it resides in.  Select Prepare for Removal to prepare the drive for removal from the enclosure. The Prepare for Removal feature is different from spinning a drive down into powersave mode because it also involves flagging the drive as ready to remove. Therefore, if you choose to prepare a drive for removal, Ready to Remove displays in the device tree for that drive, instead of Powersave. If your SAS controller has a battery backup unit (BBU), you can view information about it and change some settings. To do this, follow these steps: 1. Click Controller Properties on the WebBIOS CU main menu screen. The first Controller Information screen appears, as shown in Figure 87. Figure 87: First Controller Properties Screen 2. Click Next to view the second Controller Properties screen. The second Controller Properties screen appears, as shown in Figure 88. The Battery Backup field at the top left of the screen indicates whether the iBBU is present. Page 133

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Page 133
MegaRAID SAS Software User Guide
Chapter 4: WebBIOS Configuration Utility
|
Viewing and Changing Device Properties
WebBIOS displays the global hot spare as
Global
and the dedicated hot spare as
Ded
. The icon for the dedicated hot spare displays under its associated virtual drive.
The drive number, drive state, drive capacity, and drive manufacturer display.
Select
Enclosure Affinity
so if there are drive failures present on a split backplane
configuration, then the hot spare will be used first on the backplane side that it
resides in.
Select
Prepare for Removal
to prepare the drive for removal from the enclosure.
The
Prepare for Removal
feature is different from spinning a drive down into
powersave mode because it also involves flagging the drive as ready to remove.
Therefore, if you choose to prepare a drive for removal,
Ready to Remove
displays
in the device tree for that drive, instead of
Powersave
.
4.8.4
Viewing and Changing Battery
Backup Unit Information
If your SAS controller has a battery backup unit (BBU), you can view information about
it and change some settings. To do this, follow these steps:
1.
Click
Controller Properties
on the WebBIOS CU main menu screen.
The first Controller Information screen appears, as shown in
Figure 87
.
Figure 87:
First Controller Properties Screen
2.
Click
Next
to view the second Controller Properties screen.
The second Controller Properties screen appears, as shown in
Figure 88
. The
Battery Backup
field at the top left of the screen indicates whether the iBBU is
present.