Set up the volume type for a device that is connected to the Storage Server.
The setting of the operation type is explained below. This involves:
Defining the volume to be backed up as a transaction volume.
Preparing backup volumes. Prepare the number of volumes shown below in accordance with the operation type, each volume having the same partition size as the transaction volume, and define them as backup volumes.
Backup | Number of required backup volumes |
|---|---|
Snapshot fast backup | Number of backup generations |
Synchronized high-speed backup | Number of backup generations + 1 |
This process can be carried out using GUI operations or commands. For information on the operation method using GUI, refer to "Define the Role of a Volume" in the "ETERNUS SF AdvancedCopy Manager GUI User's Guide".
For information on the operation method using commands, refer to swstdevinfoset (Device information setting command).
Note
A logical volume of LVM cannot be registered as transaction volume or backup volume. Register it in a volume group.
In order to use a volume group as a transaction volume, it is necessary to create a logical disk as follows:
Do not register two or more physical disks into one volume group.
Create a logical disk so that one logical disk does not span two or more physical disks.
In order to set up a volume as a transaction volume, there are some points which should be taken into consideration. For more details, see "10.1.1 General notes".
To change the configuration of a partition that has been registered as either a transaction volume or a backup volume, take the following steps:
Delete the registered configuration, and then change the configuration.
Attempt to 4.4.5 Fetching device information on a Storage Server.
Register the information by executing swstdevinfoset (device information command).
The backup volume must be the same size (have the same number of bytes) as the transaction volume.
Backup and backup volumes are not supported for the system partition or the partition where AdvancedCopy Manager is installed.
The mounted device cannot be set to backup volume but, it is possible to set it to the transaction volume.
When the registered contents are checked by the GUI client or by the command, the value displayed on the "Size" column is the physical disk size. When a volume group is registered, this column also displays the physical disk size of the volume group.
Point
You can check the volumes that have been registered as follows:
Using the GUI client to check volumes
Transaction volume information or back up volume information can be referred to from the GUI client. For details, refer to the "ETERNUS SF AdvancedCopy Manager GUI User's Guide."
Checking by executing a Command at the Command line.
You can view information for a registered transaction volume or backup volume. Refer to "swstdevdisp (Device usage status display command)"
