Non-Disruptive Storage Migration; Figure 78 Non-Disruptive Storage Migration; Table 44 Specifications For Paths And Volumes Between The Local Storage System And The External Storage System - Fujitsu ETERNUS DX500 S4/DX600 S4 Design Manual

3. SAN 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 vol-
umes 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 mi-
gration destination storage system (local storage system) is only the FC cable. In addition, the direct connection
and switch connection topologies are supported.

Figure 78 Non-disruptive Storage Migration

Migration source
storage system
(external storage system)
Importing the migration target volume from the external storage system
Table 44 Specifications for Paths and Volumes between the Local Storage System and the External Storage Sys-
tem
Item
The maximum number of multipath connections between the local storage
system and the external storage system (per external storage system)
The maximum number of ports in the external storage system that can be
connected from the local storage system (per FC-Initiator port)
The maximum number of migration target volumes that can be imported to
the local storage system (*1)
The 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 local storage system ETERNUS DX using FC cables. After the connec-
tion is established, add multipath connections between the local storage system and the business server to pre-
pare for the data migration.
After disconnecting the multipath connection between the external storage system and the business server, use
RAID Migration to read data from the migration target volume in the external storage system and write data to
the migration destination volume in the local storage system.
FUJITSU Storage ETERNUS DX500 S4/DX600 S4, ETERNUS DX500 S3/DX600 S3 Hybrid Storage Systems Design Guide (Basic)
Business server
Migration destination
storage system
(local storage system)
FC cable
130
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Quantity
8 paths
32 ports
8,192
512
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