Specifications

42 MDR User Guide
select-current-recording
Syntax:
select-current-recording <RecordingName>
Description: Set the recording as current.
The
<RecordingName> parameter specifies the name (or number) of the recording to
select as current.
Examples:
select-current-recording Recording_1
select-current-recording 2
selftest
Syntax:
selftest [<Device>[:<DeviceSpecificParameters>]]
Description: Test data integrity of an MDR device.
This command performs a data integrity test of an MDR device. The MDR device is
specified using the <Device> argument. The possible values for this argument are Disks
(test the MDR Disk Subsystem) and
Tape (test the MDR Tape Subsystem).
The
<DeviceSpecificParameters> argument specifies the parameters relative to a test
for a specific device.
No specific parameters are required for the MDR Tape Subsystem test:
selftest Tape
While testing the MDR Disk Subsystem, this command can be used with or without
arguments:
• Without any arguments, the MDR will tests only the first stripe of all the disks. This
command is used in that case to test the disk accesses (not the entire surface of the
disks),
• With the argument
Disks only, the MDR will test the same area as described above,
• With the argument Disks:<StartBlock>-<LastBlock>, where <StartBlock>
represents the block where the test begins and <LastBlock> the block where the test
ends. For example, to test the blocks from 0 to 8192 use the following command:
selftest Disks:0-8192
• With the arguments /Safe, the MDR disk test is non-destructive. For instance, to
test the first 8192 blocks use the following command:
selftest Disks:0-8192/Safe
• With the arguments /Unsafe, the MDR disk test is destructive. For instance, to test
the first 8192 blocks use the following command:
selftest Disks:0-8192/Unsafe
The selected blocks on the MDR disk subsystem will be checked according to the
following sequence:
1. Save the data blocks on the disk to be checked if Safe was selected,
2. Write a pattern (random counting pattern) on these blocks,
3. Read back these blocks,
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