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The mirror management console is provided only for the individual mirror resources managed by MCCS.
The mirror management console operates independently from the engine logic of MCCS, so during operation, it can collide with MCCS.
The mirror management console informs users of the mirror volume status and the capacity of the mirror in use. You can change the bandwidth and the mirror network addresses in it.

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Screen configuration

Mirror management screen

The following mirror management screen is used.

...

[Figure]  Mirror management screen

 

Mirror set configuration

 The mirror resource configured in MCCS is expressed as a single mirror set.

 

Figure

Description

Volume

Image Modified 

The volume condition is Source.
Displays the capacity in use on the right side of the volume. 

The volume condition is Target.

Status

 

The volume condition is Mirroring.

Image Modified

The volume condition is Resyncing.
Displays the progress bar for resyncing.
Image ModifiedThe volume condition is Pause.
Image ModifiedThere is a dirtybit in the volume.
 Image ModifiedSplit brain occurred.

 

 

Mirror management command descriptions

Right click with your mouse button on the mirror set volume to see the descriptions of the mirror management commands that can be selected.

 

Menu

Description

Source

Pause copying

If you use the pause copying command, the volume condition will be changed to PAUSE and copying will be paused. 

Forceful syncIf you use the forceful sync command, the status will be changed to RESYNCING and the full synchronization will be done forcefully.
Resume copyingContinue to copy the mirror volume that was paused. Resynchronization will take place if there is data change during temporary pause. 

Target

Lock

Lock the volume to prevent access anymore.

Unlock

When you unlock the target volume, you can see the content of the file. 
Warning

When you unlock the target volume, you can see the content of the file. It can cause a negative effect to the mirror.
Even if you unlock it, you cannot write to the file. If you want to "write" to the file, you must manually change the readOnly attributes in the registry.

Descriptions of properties setting

Image Modified

[Figure] Mirror Management Screen


Attribute name

Description

JOB ID

JOB ID is displayed.

Bit MapIt is the directory containing the intent log.

Compression level

It represents the compression level for a specific copy set. The setting range is from 0 to 9.
‘0’ means no compression. The greater the value is, the smaller bandwidth is used to transmit greater data. But also, it uses more of the CPU resources.
Thus, by properly balancing the system CPU usage and the network bandwidth, select the proper compression level that can maximize the efficiency.

Empty async queue

Even if a driver receives a request for deleting a queue, this function can be used to prevent deletion of queues on a specific volume.
Bandwidth 

It is the max network bandwidth (kbps/sec) that can be used by a copy set.
‘0’ means that the given bandwidth will be used with maximum efficiency.

Mirror network address Copy the volume to the set IP address.