Drives - Fujitsu ETERNUS DX60 S4 Design Manual

3. Hardware Configurations
Optional Product Installation Conditions

Drives

This section explains the installation conditions for drives.
■
Types of Drives
The following drive types can be installed in the ETERNUS DX.
SAS disks
•
• Nearline SAS disks
SSDs
•
2.5" and 3.5" drive sizes are available.
Since 2.5" drives are lighter and require less power than 3.5" drives, the total weight and power consumption
when 2.5" drives are installed is less than when the same number of 3.5" drives is installed.
When the data I/O count is compared based on the number of drives in an enclosure (2.5" drives: 24, 3.5" drives:
12), the Input Output Per Second (IOPS) performance for each enclosure in a 2.5" drive configuration is superior
to a 3.5" drive configuration since more 2.5" drives can be installed in an enclosure than 3.5" drives.
●
SAS Disks
SAS disks are high-performance and high-reliability disks. They are used to store high performance databases
and other frequently accessed data.
• The following disks are Advanced Format (512e) disks.
1.8TB SAS disks
-
2.4TB SAS disks
-
When using Advanced Format (512e) disks, make sure that Advanced Format (512e) is supported by the
•
server OS and the applications. If the server OS and applications do not support Advanced Format (512e),
random write performance may be reduced.
●
Nearline SAS Disks
Nearline SAS disks are high capacity cost effective disks for data backup and archive use. Nearline SAS disks can
store information that requires a low access rate at a reasonable speed more cost effectively than SAS disks.
FUJITSU Storage ETERNUS DX60 S4, ETERNUS DX60 S3 Hybrid Storage Systems Design Guide (Basic)
131
Copyright 2019 FUJITSU LIMITED
P3AM-8992-14ENZ0