Avago Technologies MegaRAID Fast Path Software - Manual (Page 152)

Page 152 LSI Corporation Confidential | July 2011
MegaRAID SAS Software User Guide Chapter 4: WebBIOS Configuration Utility | Viewing and Changing Device Properties
 Select Enclosure Affinity so drive failures are present on a split backplane
configuration, then the hot spare will be used first on the backplane side in which it
resides.
 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
power save mode because it also involves flagging the drive as ready to remove.
Therefore, if you choose to prepare a drive for removal, selecting Ready to Remove
displays in the device tree for that drive, instead of Powersave.
 Select Stop Locate to stop the LED flash on the drive. This works only if the drive is
installed in a drive enclosure.
 Select Drive Erase to securely erase data on non self-encrypting drives (Non-SED),
which are normal HDDs.
4.8.4 Shield State Physical devices in MegaRAID firmware transit between different states. If the firmware
detects a problem or a communication loss for a physical drive, the firmware transitions
the drive to a bad (FAILED or UNCONF BAD) state. To avoid transient failures, an interim
state called the shield state is introduced before marking the drive as being in a bad
state.
The shield state is an interim state of a physical drive for diagnostic operations. The
results of the diagnostic tests determine if the physical drive is good or bad. If any of
the diagnostic tests fail, the physical drive transitions to a bad state (FAILED or UNCONF
BAD).
4.8.4.1 Shield State Physical
View
Follow these steps to check if a physical drive is in a Shield state in the Physical view.
1. Click Physical View in the main dialog.
The physical drive that is in a shield state is marked as Shielded.