Extreme Cache; Table 105 Estimated System Memory Capacity Of Each Controller Enclosure - Fujitsu ETERNUS DX S5 Series Design Manual

6. Hardware Configurations
Installation Conditions and Installation Rules
Table 105
the Compression Function Enabled)
Drive capacity
Up to 112,639GB
112,640GB or more
To enable the Compression function in the ETERNUS DX900 S5, a system memory capacity of 768GB or
more is required for each CE.
●
Recommended System Memory Capacity
To use the functions described below with the ETERNUS DX200 S5, installing 128GB (64GB per CM) of system
memory in the ETERNUS DX is recommended.
Deduplication/Compression function
•
• Unified License
■
System Memory Installation Order
●
ETERNUS DX200 S5
Install the same type of system memory for all the slots.
The configuration is the same for Controller 0 (CM#0) and Controller 1 (CM#1).
●
ETERNUS DX500 S5/DX600 S5
Install the same type of system memory for all the slots.
The configuration is the same for Controller 0 (CM#0) and Controller 1 (CM#1).
●
ETERNUS DX900 S5
When multiple controller enclosures are installed, install the same type of system memory using the same
layout for each controller slot.

Extreme Cache

This section describes the installation conditions and installation rules for PCIe Flash Modules (PFMs).
A PFM is a module that is installed to operate the Extreme Cache function.
Note
• PFMs with different capacities can be installed in a controller enclosure.
• The PFM capacity of each controller enclosure can be different.
■
Types of PFMs
The following types of options are available for the Extreme Cache.
1.6TB (1.6TB ´ 1)
•
3.2TB (3.2TB ´ 1)
•
■
Number of Installable PFMs
Up to eight PFMs can be installed in the controller enclosure.
PFMs with different capacity sizes can exist in the same ETERNUS DX.
Estimated System Memory Capacity of Each Controller Enclosure (ETERNUS DX900 S5 with
System memory capacity (with the Compression function enabled)
768GB
1,536GB
282 Design Guide