Contents
Figures
. . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Safety and environmental notices . . . . . . . . . . . . . . . . . xi
Product recycling . . . . . . . . . . . . . . . . . . . . . . . . xi
Disposing of products . . . . . . . . . . . . . . . . . . . . . . . xi
About this guide
. . . . . . . . . . . . . . . . . . . . . . . xiii
Who should use this guide
. . . . . . . . . . . . . . . . . . . . xiii
Frequently used terms . . . . . . . . . . . . . . . . . . . . . . xiii
Publications . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
The ESS product library
. . . . . . . . . . . . . . . . . . . . xvi
Ordering publications . . . . . . . . . . . . . . . . . . . . . xvii
Related publications. . . . . . . . . . . . . . . . . . . . . . xvii
Web sites . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
Summary of Changes
. . . . . . . . . . . . . . . . . . . . . xxi
Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . . 1
IBM Enterprise Storage Server overview . . . . . . . . . . . . . . . . 1
Host systems supported by the ESS
. . . . . . . . . . . . . . . . 2
Web interfaces . . . . . . . . . . . . . . . . . . . . . . . . 4
Service interface . . . . . . . . . . . . . . . . . . . . . . . . 9
Fibre-channel connection . . . . . . . . . . . . . . . . . . . . 10
Introducing the IBM Subsystem Device Driver
. . . . . . . . . . . . 12
IBM Enterprise Storage Server availability features
. . . . . . . . . . . 14
Redundant array of independent disks implementation . . . . . . . . . 14
Non-RAID disk group support
. . . . . . . . . . . . . . . . . . 15
Predictive failure analysis . . . . . . . . . . . . . . . . . . . . 15
Failover protection
. . . . . . . . . . . . . . . . . . . . . . 15
Sparing. . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Fibre-channel support . . . . . . . . . . . . . . . . . . . . . 15
Cache . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Nonvolatile storage . . . . . . . . . . . . . . . . . . . . . . 16
Concurrent maintenance . . . . . . . . . . . . . . . . . . . . 16
FlashCopy
. . . . . . . . . . . . . . . . . . . . . . . . . 16
Peer-to-Peer Remote Copy . . . . . . . . . . . . . . . . . . . 17
FlashCopy and PPRC restrictions for open system hosts . . . . . . . . 18
UNIX, Windows NT, and Windows 2000 availability features . . . . . . . 18
System/390 availability features. . . . . . . . . . . . . . . . . . 19
Descriptions and comparisons of the IBM Enterprise Storage Server models
20
Power differences between models
. . . . . . . . . . . . . . . . 21
Features . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Logical subsystems . . . . . . . . . . . . . . . . . . . . . . . 23
Chapter 2. Planning the physical configuration . . . . . . . . . . . . 25
United States-government orders . . . . . . . . . . . . . . . . . . 25
Power features . . . . . . . . . . . . . . . . . . . . . . . . . 25
Power outlets
. . . . . . . . . . . . . . . . . . . . . . . . 25
Uninterruptible power system. . . . . . . . . . . . . . . . . . . 26
Power supply input voltage
. . . . . . . . . . . . . . . . . . . 26
Power cables
. . . . . . . . . . . . . . . . . . . . . . . . 26
© Copyright IBM Corp. 1999, 2000
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