Product manual

CDA 7 5630 Product Manual
1-8 77 A1 69UP Rev00
1.3.2 Software Options
The following software options are used:
• Enterprise Storage Platform (ESP)
• Remote Data Facility (SRDF)
1.3.2.1 CDA 7 Enterprise Storage Platform (ESP)
CDA 7 ESP software enabler is a software option that allows simultaneous storage
and access of mainframe data and open systems data on the same CDA 7 system.
Data must reside on separate physical disks for each platform in the system. Data
from multiple system sources may also co-exist on the same CDA 7, both with
other open systems data and with mainframe data. Each homogenous operating
system environment stores its data on its own physical disks, separate from the
physical disks used for data storage by other operating systems.
To implement ESP in your environment, contact your Bull Sales Engineer.
For an example of HACMP in a Sagister/Escala environment, refer to the CDA/X
Product Manual.
NOTE:
Refer to the Symmetrix Enterprise Storage Platform Product Guide for more
information on CDA 7 ESP. For information on cluster systems, refer to the
Symmetrix High Availability Environment Product Guide.
1.3.2.2 CDA 7 Remote Data Facility (SRDF)
The CDA 7 SRDF option is a mechanism that maintains a mirror image of data at a
logical volume level in two CDA 7 subsystems that can be located in physically
separate sites.
Within the Bull DPS 7000/GCOS 7 environment, the SRDF for GCOS 7 solution is
aimed at providing a back-up solution in the situation where a production site is out
of work due to a major disaster event. Refer to § SRDF for GCOS 7.