IBM System Storage DS3000, Programming Manual

Page: 467 / 652

create enhancedGlobalMirrorGroup userLabel="enhancedGlobalMirrorGroupName"
(remoteStoragesubsystemName="storagesubsystemName" | remoteStoragesubsystemWwn="wwID")
interfaceType=(FC | iSCSI)
[remotePassword="password"
syncInterval=integer (minutes | hours | days)
warningSyncThreshold=integer (minutes | hours | days)
warningRecoveryThreshold=integer (minutes | hours | days)
warningThresholdPercent=percentValue
autoResync=(TRUE | FALSE)]
When you run this command you create a new, empty Enhanced Global Mirror Group on both the local
storage subsystem and the remote storage subsystem.
This example shows how to create an Enhanced Global Mirror Group on a Windows command prompt:
c:\...\smX\client>smcli 123.45.67.88 123.45.67.89
-c “create enhancedGlobalMirrorGroup userLabel="\EngDevData\"
remoteStoragesubsystemName="\Eng_Backup\"
interfaceType=iSCSI
remotePassword="\xxxxx\"
syncInterval=8 hours
warningSyncThreshold=1 hours
warningRecoveryThreshold=2 hours
warningThresholdPercent=80
autoResync=TRUE]
The command in this example creates a new Enhanced Global Mirror Group with a repository logical
drive on a remote storage subsystem that already has the name "Eng_Backup." The interface between the
local storage subsystem and the remote storage subsystem is iSCSI. The remote storage subsystem is
password protected and the password must be used to create the Enhanced Global Mirror Group. The
synchronization between the local storage subsystem and the remote storage subsystem automatically
takes place once every eight hours. If the synchronization cannot be completed successfully the
administrator receives a message one hour after the synchronization did not work. When the repository
logical drive has reached 80 percent of capacity, a warning alert is sent to the administrator.
This example shows how to use the command in a script file:
create enhancedGlobalMirrorGroup userLabel="EngDevData"
remoteStoragesubsystemName="Eng_Backup"
interfaceType=iSCSI
remotePassword="xxxxx"
syncInterval=8 hours
warningSyncThreshold=1 hours
warningRecoveryThreshold=2 hours
warningThresholdPercent=80
autoResync=TRUE]
After you create the Enhanced Global Mirror Group, you can create the Enhanced Global Mirrored Pair to
start performing Enhanced Remote Mirroring operations.
Creating the Enhanced Global Mirroring pair
After you have created the Enhanced Global Mirror Group you can create the mirrored pairs that you
want in the Enhanced Global Mirror Group. Creating a mirrored pair involves these steps:
1. Determining if you have a candidate secondary mirror logical drive on the remote storage subsystem.
2.
Adding a primary logical drive that allows you to mirror to the Enhanced Global Mirror Group on
the local storage subsystem.
3. Enabling the relationship between the primary logical drive on the local storage subsystem and the
repository logical drive on the remote storage subsystem.
Chapter 7. About Enhanced Global Mirroring premium feature
7-7