Table 67
Estimated System Memory Capacity of Each Storage System (ETERNUS AF650 S3 with the
Deduplication/Compression Function Enabled)
Drive capacity
System memory capacity (with the Deduplication/Compression function enabled)
Up to 112,639GB
768GB
112,640GB or more 1,536GB
■
ETERNUS AF650 S3 Installation Order
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).
Host Interface
This section describes the installation conditions and standard installation rules for host interfaces.
■
Types of Host Interfaces
The following types of host interfaces are available:
Table 68
Types of Host Interfaces
Host interface
AF150 S3/AF250 S3
AF650 S3
FC 32Gbit/s
¡
¡
FC 16Gbit/s
¡
¡
iSCSI 10Gbit/s (10GBASE-SR / 10GBASE-CR)
¡
(*1)
¡
iSCSI 10Gbit/s (10GBASE-T)
¡
´
¡
: Supported
´
: Not supported
*1:
iSCSI 10Gbit/s (10GBASE-SR) host interfaces on the ETERNUS AF150 S3 do not have SFP+ modules. The SFP+ modules are required to
connect the FC cables.
●
FC
Fibre Channel (FC) enables high speed data transfer over long distances by using optical fibers and coaxial
cables. FC is used for database servers where enhanced scalability and high performance are required.
●
iSCSI
iSCSI is a communication protocol that transfers SCSI commands by encapsulating them in IP packets over
Ethernet.
Since iSCSI can be installed at a lower cost and the network configuration is easier to change than FC, iSCSI is
commonly used by divisions of large companies and by small and medium-sized companies where
scalability and cost-effectiveness are valued over performance.
■
Number of Installable Host Interfaces
In the ETERNUS AF150 S3/AF250 S3, two host interfaces can be installed in the controller. Each storage system
can be installed with four host interfaces.
In the ETERNUS AF650 S3, four host interfaces can be installed in the controller. Each storage system can be
installed with eight host interfaces.
Different types of host interfaces can exist together in the same ETERNUS AF.
4. Hardware Configurations
Installation Conditions and Installation Rules
175
Design Guide
Содержание ETERNUS AF S3 Series
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