HP XP Racks - Manual (Page 11)

2 System implementation planning and system requirements
Understanding the system planning process and the various requirements of ESAM enables you
to plan a system that functions properly and can be configured to meet your business needs over
time.
The workflow for planning External Storage Access Manager
implementation
The process for planning your ESAM implementation involves these two main tasks:
•
Plan and configure the volume pairs, data path configurations, bandwidth sizing, RAID
configuration.
For more information, see the HP XP P9000 Continuous Access Synchronous User Guide.
•
Follow all of the ESAM requirements and recommendations.
There are major differences between ESAM and Continuous Access Synchronous. For example,
use of the quorum disk and multipath software on the host are specific to ESAM.
NOTE: HP strongly recommends that you contact Global Solutions Services for assistance in the
planning and configuration of your HP system.
Required hardware
The following hardware is required for an ESAM system:
•
Storage systems must be installed on the primary and secondary sites.
•
ESAM pairs can be set up between the following HP systems. Note the required microcode
versions.
◦ Two P9500s, on the primary and secondary sites (70-01-62-XX/XX or later)
◦
A P9500 (70-03-0X-XX/XX or later) and XP24000 (60-05-0x or later). Either storage
system can be on the primary or secondary site.
•
A host must be connected to both primary and secondary storage systems.
•
An external storage system for the quorum disk.
•
External storage system for data storage (optional).
•
Data path connections between primary and secondary storage systems.
•
A physical path connection between the primary storage system and the external system
hosting the quorum disk.
•
A physical path connection between the secondary storage system and the external system
hosting the quorum disk.
•
Path connections from host to primary and secondary storage systems. Multipath software
must be installed on each host server for this purpose.
•
If necessary, physical path connections between external storage and primary and/or
secondary storage systems.
The workflow for planning External Storage Access Manager implementation 11