IBM Enterprise Storage Server 2105 E10, Introduction And Planning Manual

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Power differences between models
Table 1 shows the power differences between the ESS models.
Table 1. Power differences between ESS models
Attribute Models E10 and F10 Models E20 and F20
Dual power cords Yes Yes
Power Single phase (50/60 A) Three phase (50/60 A)
DDM support 16 - 64 16 - 128
Features
Table 2 compares the ESS features that are available for hosts that have small
computer system interface (SCSI) interfaces with hosts that have Enterprise
Systems Connection (ESCON) interfaces.
Table 2. IBM Enterprise Storage Server feature comparison
Feature Host Systems with SCSI or
Fibre-Channel Interfaces Host Systems with ESCON
Interfaces
Attachment Parallel attachment, SCSI
v
1 - 15 targets per bus
v
1 - 64 logical units per target
128 fibre-channel attached hosts per
fibre port (see “Fibre-channel host
adapters” on page 30 for information
on loop topology)
ESCON attachment
v
1 - 16 controller images
v
1 - 256 devices per control unit
image
Host systems supported
v
IBM AS/400
v
IBM RS/6000 and RS/6000 SP
v
HP 9000
v
Sun
v
Compaq AlphaServer
v
Data General
v
IBM Netfinity and Intel-based PCs
v
IBM NUMA-Q
v
IBM ES/9000
v
IBM 3090
v
IBM S/390 Models 7060, 9672, and
2003
Control unit emulation No
v
3990 Model 3, Model 3 transaction
processing facility (TPF), and
Model 6
v
Models E10, F10, E20, and F20
Host adapters, 2 - 16 (See Note 1.)
v
Ultra-SCSI, dual port (for attaching
host systems with SCSI-2 or
SCSI-3 adapters)
v
Fibre channel, single port (for
attaching host systems with
fibre-channel adapters)
ESCON
Software device drivers
v
AS/400 hosts
– 9337 Models 580, 590
v
UNIX , Window NT and Windows
2000 hosts
– Models E10, E20, F10, and F20
MVS, VM, VSE, TPF
Chapter 1. Introduction
21