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14. When operating an L-Platform, use the cfmg_syncdiskinfo command to reflect the information for switched disks on the L-Platform
configuration information.
[Windows Manager]
>
Installation_folder
\RCXCFMG\bin\cfmg_syncdiskinfo <RETURN>
[Linux Manager]
# /opt/FJSVcfmg/bin/cfmg_syncdiskinfo <RETURN>
For details on the cfmg_syncdiskinfo command, refer to "12.7 cfmg_syncdiskinfo (disk information synchronization)" in the
"Reference Guide (Command/XML) CE".
When Using Dynamic LUN Mirroring
This document explains some changes and points to note when using dynamic LUN mirroring.
Prerequisites
Refer to "7.2 Storage Chassis High Availability Design" in the "Design Guide CE".
Replication of Storage Unit LUNs
If disk resources are automatically generated from virtual storage, replication may be automatically set depending on the settings in
the mirroring definition file. Replication settings use REC for CCM (machine-to-machine copying, transfer mode: Stack mode), so
copy groups or pairs are automatically generated. The name of the generated copy group will be the value entered in the mirroring
definition file.
Replication Definition Files
When replication using CCM is set, a replication definition file can be generated by executing the rcxrepdef command.
For details on the rcxrepdef command, refer to "5.22 rcxrepdef" in the "Reference Guide (Command/XML) CE".
When Performing Switchover from Operating to Standby (Failover)
The procedure for switchover is the same as that for when a LUN is created in the storage unit beforehand.
Note
The disk resources created using dynamic LUN mirroring are not deleted when failover to the standby node occurs.
Information
Start to copy using REC (transfer mode: Stack mode) for CCM for the dynamic LUN mirroring. Stop the replication function using
the procedure described in step 5. in the same way as follows:
1. Use the acec suspend command by specifying the -force option to forcibly suspend the REC session.
2. Use the acec change command to change the REC transfer mode to Through mode.
3. Suspend the REC session using the acec cancel command. In this case, do not specify the -force option.
When Performing Switchover from Standby to Operating (Failback)
The procedure for switchover is the same as that for when a LUN is created in the storage unit beforehand.
17.2 High Availability for Admin Servers
This section explains high availability of managers.
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