Non-Disruptive Storage Migration; Figure 68 Non-Disruptive Storage Migration; Table 45 Specifications For Paths And Volumes Between The Local Storage System And The External Storage System - Fujitsu ETERNUS AF S3 Series Design Manual

2. Basic Functions

Non-disruptive Storage Migration

Non-disruptive Storage Migration
Non-disruptive Storage Migration is a function that migrates the volume data from an old storage system to
volumes in a new storage system without stopping a business server in cases such as when replacing a storage
system.
The connection interface between the migration source storage system (external storage system) and the
migration destination storage system (local storage system) is only FC. In addition, the direct connection and
switch connection topologies are supported.
Figure 68 Non-disruptive Storage Migration
Migration source
storage system
(external storage system)
Importing the migration target volume from the external storage system
Table 45 Specifications for Paths and Volumes between the Local Storage System and the External Storage
System
Item
Maximum number of multipath connections between the local storage
system and the external storage system (per external storage system)
Maximum number of ports in the external storage system that can be
connected from the local storage system (per FC-Initiator port)
Maximum number of migration target volumes that can be imported to
the local storage system (*1)
Maximum number of migration target volumes in the external storage
system that can be imported simultaneously to the local storage system
*1: The number of migration target volumes that are imported to the local storage system is added to the number of volumes in the local
storage system.
Connect the external storage system to the ETERNUS AF (local storage system) directly or via a switch. After a
connection is established, prepare for the data migration.
Create External Drives in the local storage system. Create External RAID Groups using the External Drives and
then create volumes in the External RAID Groups. The volumes are called External Volumes in the local storage
Business server
Migration destination
storage system
(local storage system)
FC cable
117
Quantity
8 paths
32 ports
2,048 (ETERNUS AF150 S3)
4,096 (ETERNUS AF250 S3)
8,192 (ETERNUS AF650 S3)
512
Design Guide