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[Figure] Mirroring Configuration

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Mirror Mode

Replication option Mirror mode employs both asynchronous and synchronous mirroring schemes. Understanding the advantages and disadvantages between synchronous and asynchronous mirroring is essential to the correct operation of this.

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Attribute

Desctiption

TypeDefaultEditNote
AutoResolveSplitBrain

If it is set to 'true', it will automatically resolve the split brain issues.

BOOLEANtrueO 
ChkDsk

When the volume is mounted, according to the 'ChkdskArg', disk is tested for errors.
If it is set to true, and if dirty bits are set to the online volume, the ChkdskArg option will be used to run checkdisk.
Before running checkdisk, the mirror copying will be automatically stopped and resynchronization will be performed after finished..

BOOLEANfalseO 
ChkdskArg

When the Chkdsk option is set to true, the check disk command option is activated.

STRING/FO 
DirtyBit

It means that dirty bits are set to the target mirror volume.
In general, if you need to check the integrity of the target volume, the system will set this.

BOOLEANfalseX 
DomainMemberServer

If the node to configure the mirror resource is a member server of the Windows domain, you must set it to "true".
Now, the Windows service account to start the DK service should be set as Administrator for the local node.

BOOLEANfalseO 

DriveLetter

The mirror volume is assigned to the drive character.
It should be configured to obtain the same value at the source and the target systems.

STRING X 
MirrorIP

The IP address used to copy the volume.

STRING X 
MirrorRoleThe mirror role of the mirror volume.
It is renewed from an event log.		STRING X 
MirrorState

The mirror status of the mirror volume.
It is renewed from an event log.

STRING X 
MirrorTimeout

This is the time limit for mirror role or status updates in the process of volume failovers or switching.
If the status or role is not renewed within this time period, a time out error will occur.

INTEGER120 secO 
MirrorTypeDetermine the mirror synchronization mode. Set it to A or S.
( A - async mode, S - sync mode)
* If it is set to asynch mode, data loss can occur.		STRINGAX 
Password

It is the password for the designated user account.
Unless you set it otherwise before, now, enter the password for the 'Administrator' account.

PASSWORD O 
ResyncNeedIt represents the total sum of the blocks requiring resynchronization.INTEGER0X 
ResyncTotalIt is the total sum of the resynchronization blocks.INTEGER0X 
TimeAquiredSourceRoleIt is the time when the node's mirror roles are changed to the sourceSourceProrityLevel

It indicates SourceRole Level of each node in a cluster.

Higher value of node takes Source Role.

STRING X 
TotalSpaceIt represents the total size of the target mirror volume.INTEGER X 
UsedSpaceIt represents the available size of the target mirror volume.INTEGER X 
User

The user account to run the mirror related commands.
Unless you set it otherwise before, now, the 'Administrator' account will be used.

STRINGAdministratorO 

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