This section describes some precautions on using migration as described below.
Information displayed in the "View and Create" window
Information displayed in "View and Create" is not automatically updated. Select the [View] - [Update] menu in the [View and Create] window to update the information during or after migration.
Information displayed in the "Copy Status Inquiry" window
When automatic-switch migration is started, the status may be "Automatic change(standby)" before completing the change of physical disks even when data copying to the migration destination physical disk is completed. Since the copy information is deleted immediately after completing the physical disk switch, update the information in "Copy Status Inquiry" after waiting a while.
Migration source and migration destination physical disk capacities
The capacity of the migration destination physical disk must be equal to or greater than that of the migration source physical disk. If the migration destination physical disk has greater capacity, a task is required to enable the server operating system and file system to recognize the difference in space. Therefore, the migration source physical disk and migration destination physical disk should have equal capacities.
If migration source physical disk and migration destination physical disk have unequal capacities, an error message is output to stop migration processing when automatic switching migration is performed.
Data consistency
In migration to hold migration backup disk (hereinafter called "backup disk"), if you want to ensure data consistency stored on backup disks, it is required to write data cached on the application server to the backup disks before migration cutover to ensure the consistency.
Copying encrypted volumes
When non-encrypted volumes are copied from the encrypted volumes, the level of security deteriorates.
