Maint Status is the UTILIT maintenance operation status.
3.1.4.8 The DISKTEST Command
The DISKTEST command performs an exercise on the selected disk device. You
should run DISKTEST on all newly formatted and qualified devices. The device
to be exercised must first be selected with the SELECT command.
Command Syntax
The following is the syntax of the DISKTEST command:
DISKTEST device_name [/write]
The symbol
device_name
refers to a valid MSCP device label for a direct access
device. Disk drives are specified with the ‘‘DIA’’ prefix to the device label. The
/WRITE qualifier selects a write-read disktest operation.
Command Description
The DISKTEST command can run either read-only or write-read (using the
/WRITE qualifier) tests. The write-read DISKTEST operation consists of writing
to randomly selected logical blocks and verifying the data. This sequence repeats
until all logical blocks on the device have been written and read, then the test
begins again until the ABORT command is entered to terminate the DISKTEST.
You must perform a write-read disktest to write data to the disk before you
perform the read-only disktest.
You are prompted to confirm the DISKTEST operation on the selected drive.
Answering ‘‘N’’ or ‘‘NO’’ aborts the operation with no change to the data on the
device. Answering ‘‘Y’’ or ‘‘YES’’ to this prompt starts the DISKTEST on the
device.
Running the DISKTEST operation with the /WRITE qualifier replaces media
errors when encountered. If other types of errors occur, the test is stopped and
the error condition is displayed in the Maint Status field of the display.
Terminating the Test
The DISKTEST test operation runs until it is terminated with the ABORT
command or until the HSD05 array controller is powered off.
Example 3–8 shows a write-read qualification run.
Example 3–8 Write-Read Qualification Run Using the DISKTEST Command
UTILIT> DISKTEST /WRITE DIA220
Device
SID
Vendor
Model
Rev
Dev Stat
Maint Oper
Maint Status
-------------------------------------------------------------------------
DIA220
2-0
DEC
RZ28
435E
MAINT
IDLE
READY
DISKTEST will overwrite some or all data on this device.
Are you sure (Y/N)? YES
Initiating Disk Test
UTILIT>
Device is the MSCP device name.
SID is the SCSI ID (target/lun).
Vendor is the first seven characters of the manufacturer’s name.
3–10 Operating the HSD05 Array Controller
