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 the FC cable. In addi-
tion, the direct connection and switch connection topologies are supported.
Figure 75 Non-disruptive Storage Migration
Business server
Migration source
storage system
(external storage system)
Migration destination
storage system
(local storage system)
FC cable
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 Quantity
The maximum number of multipath connections between the local
storage system and the external storage system (per external stor-
age system)
8 paths
The maximum number of ports in the external storage system that
can be connected from the local storage system (per FC-Initiator
port)
32 ports
The maximum number of migration target volumes that can be im-
ported to the local storage system (*1)
2,048 (DX100 S4/DX100 S3)
4,096 (DX200 S4/DX200 S3)
The maximum number of migration target volumes in the external
storage system that can be imported simultaneously to the local
storage system
512
*1: The number of migration target volumes that are imported to the local storage system is add-
ed to the number of volumes in the local storage system.
Connect the external storage system to the local storage system ETERNUS DX using FC cables. Af-
ter the connection is established, add multipath connections between the local storage system and
the business server to prepare for the data migration.
3. SAN Functions
Non-disruptive Storage Migration
131
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems
Design Guide (Basic)
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