306
EMC Symmetrix DMX-3 Product Guide
Planning and Installation
Mainframe systems installations
Note: “Open systems installations” on page 301 contains open systems
installation requirements.
This section contains hardware and host checklists to be used when
connecting a Symmetrix DMX-3 to mainframe systems hosts. For the
most current information on the Symmetrix system and specific host
integration, contact your local EMC Sales Representative, or refer to
the EMC Powerlink website.
Symmetrix
hardware checklist
Make sure you discuss with and obtain the following site profile
information from the Customer Engineer or Systems Engineer. This
information is necessary for each Symmetrix system you are
installing (Table 59 on page 306).
Table 59 Symmetrix checklist for mainframe hosts
Symmetrix DMX-3 model ❏
Total number of physical drives to be configured on the Symmetrix system ❏
Physical drive type (size) ❏
Total amount of Symmetrix global memory ❏
Number of ESCON directors
a
❏
Number of FICON directors
a
❏
Host channel director models used ❏
Number of channels used per director
b
❏
Remote director (SRDF) type (RA-2, RA-4) and quantity ❏
a. If host mirroring is performed, configure an even number of channel directors.
b. From a performance perspective, it is better to spread channels across as many channel directors as possible.
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