Function Specification List
The ETERNUS AF provides various functions to ensure data integrity, enhance security, reduce cost, and optimize
the overall performance of the system.
These functions enable users to respond to problems from various situations.
Table 4
Basic Functions
Overview
Function
Supported model
AF150 S3
AF250 S3
AF650 S3
Data protection
Functions that ensure data integrity to
improve data reliability.
It is possible to detect and fix drive
failures early.
"Copyback/Copybackless" (page 37)
"Protection (Shield)" (page 39)
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Operations optimization
(Deduplication/Compression)
A function that eliminates duplicated
data and compresses the data to
reduce the amount of written data.
"Deduplication/Compression" (page 42)
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Resource utilization (virtualization/
Automated Storage Tiering)
Functions that deliver effective resource
utilization.
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Data capacity expansion
Functions that expand or relocate a
RAID group or a volume in order to
flexibly meet any increases in the
amount of data.
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Guarantee of performance
Functions that create a volume that
is striped in multiple RAID groups in
order to improve performance.
"Logical Device Expansion" (page 65)
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Security measures (data encryption)
Functions that encrypt data in the drive
media to prevent the data from being
fraudulently decoded.
"Encryption with Self Encrypting Drive (SED)"
(page 70)
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"Firmware Data Encryption" (page 71)
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"Key Management Server Linkage" (page
72)
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Security measures (user access
management)
Functions to prevent information
leakage that is caused by a malicious
access.
"Account Management" (page 75)
"User Authentication" (page 77)
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Security measures (unauthorized
access prevention)
Functions that prevent unintentional
storage access.
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1. Overview
Function Specification List
19
Design Guide
Summary of Contents for ETERNUS AF S3 Series
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