Avago Technologies MegaRAID Fast Path Software - Manual (Page 320)

Page 320 LSI Corporation Confidential | July 2011
MegaRAID SAS Software User Guide Chapter 7: MegaRAID Storage Manager Window and Menus | MegaRAID Storage Manager Main Menu
NOTE: The size units displayed are as follows:
If the size is less than 1 MB (1024 KB), the size is displayed in KB. If the size is greater than
or equal to 1 MB but less than 1 GB (1024 MB), the size is displayed in MB. If the size is
greater than or equal to 1 GB, but less than 1 TB (1024 GB), the size is displayed in GB.
7.2.8 Emergency HotSpare Support When a drive within a redundant virtual drive fails or is removed, the MegaRAID
firmware automatically rebuilds the redundancy of the virtual drive by providing an
Emergency Hotspare (EHSP) drive, even if no commissionable dedicated or global
hot spare drive is present.
7.2.8.1 Emergency Hotspare for
Physical Drives
The Emergency Hotspare property determines whether a particular drive is capable of
becoming an Emergency Hotspare. This property is displayed under the controller
properties only if the Global Hotspare for Emergency, and the Unconfigured Good for
Emergency controller properties are enabled.
Follow these steps to view the Emergency Hotspare property.
1. In the Logical view or the Physical view, click the drive that you want to view hot
spare properties.
2. The Emergency Hotspare is displayed under general properties. This property
denotes whether a particular drive is capable of becoming a Hotspare, as shown in
the following figure.
Figure 187: Emergency Hot Spare – Physical Drive Properties
7.2.8.2 Emergency Hotspare
Property for Controllers
The Emergency Hotspare properties under the controller properties are configured
based on enabling or disabling the following properties:
 Global Hotspare for Emergency
 Unconfigured Good for Emergency
 Emergency for SMARTer