One of the following platforms is required. You must use the same platform at the main site and the remote site.

• Red Hat Enterprise Linux AS 4 (AMD64 & Intel EM64T)
• Red Hat Enterprise Linux ES 4 (AMD64 & Intel EM64T)
• Linux 5 (AMD/Intel 64)

To use Real Time SAN Replication, Hitachi disk array system series products are required. The table below shows the required products. These prerequisite products must be installed at both the main site and the remote site.

Table 1-6 Prerequisite products

Device name of Hitachi disk array system	Real Time SAN Replication processing method			Required Hitachi disk array system
	All synchronous method	All asynchronous method	Hybrid method
9500V	Y#1	N	N	Hitachi TrueCopy basic RAID Manager
9900V	Y	Y	Y	Hitachi TrueCopy Hitachi TrueCopy Asynchronous#2 RAID Manager
Adaptable Modular Storage (AMS)	Y	N	N	TrueCopy remote replication RAID Manager
Network Storage Controller (NSC)	Y	Y	Y	TrueCopy TrueCopy Asynchronous#2 RAID Manager
Universal Storage Platform (USP)	Y	Y	Y	TrueCopy TrueCopy Asynchronous#2 RAID Manager
Virtual Storage Platform (VSP)	Y	Y	Y	TrueCopy Universal Replicator RAID Manager

Legend:

Y: Can be used

N: Cannot be used

#1

Cannot be used with 9530V.

#2

Required if you use the all asynchronous or hybrid method.