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Before you can use the disk drive again, you must clear its metadata.
6.1.2, "Clearing Metadata from a Disk Drive", on page
6.1.8 Testing a Disk Drive
This function issues a Test Unit Ready (TUR) command to the selected disk drive. This just tells you that
the disk drive can respond, but it still may not be functioning properly.
To test a disk drive:
1
From SAM, select Manage X24 Subsystem > Utilities > Disk Drive Utilities >Test Unit Ready.
The Test Unit Ready page displays listing all devices.
2
Select the disk drive you want to test.
3
Click Test Unit Ready.
If the TUR was successful, Test Unit Ready STATUS OK displays.
If the TUR was not successful, a failure message displays.
6.2 Managing Enclosures
An enclosure management processor (EMP) is a device in the enclosure from which the X24 Subsystem
can inquire about the enclosure's environmental conditions such as temperature, power supply and fan
status, and the presence or absence of disk drives. The X24 Subsystem can also tell the EMP about RAID
activities such as disk drive rebuilds and failed disk drives.
If you have only one EMP, the configuration settings are automatically enabled when the X24 Subsystem
is installed. No changes are required to the default configuration settings to support the EMP.
If you have more than one EMP, you must set up the EMP LUNs as described in the next section.
You can control the following functions for EMPs:
• EMP LUN (see
• Additional EMP setting (see
– Polling interval
6.2.1 Setting the EMP LUN
If you have only one EMP, the configuration settings are automatically enabled when the X24 Subsystem
is installed.
If you have more than one EMP, you must set up the EMP LUNs as described in this section.
The X24 Subsystem allows in-band access to the EMP in the disk enclosure under the X24 Subsystem's
target ID using direct EMP commands. You can set an EMP LUN to any value between 0 and 63, except
where it would conflict with a previously assigned LUN (EMP, partition, or management). You can also
page
57)
page
58):
Drive & Eclosure Management
SeeAppendix F
54.
section
57
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Table of Contents
Troubleshooting
