Specifications

Table 6. Host system limitations (continued)
Host System
LUN
assignments
and limitations
per target Configuration notes
Data General 0 - 7 None
Hewlett Packard 9000 0 - 7 None
IBM AS/400. See note 1.
0-7
The target SCSI ID is always 6.
Sixteen LUNs are supported for
each feature code 6501. For ESS,
the two ports on the feature code
6501 each support 8 drives at full
capacity for RAID. Real 9337s
running RAID-5 must account for
parity. Therefore, the 8 drives
provide the equivalent of a 7-drive
capacity.
IBM iSeries (fibre-channel) See
note 2.
0 - 32 There is one target per AS/400 and
iSeries adapter.
IBM NUMA-Q (UNIX) 0 - 7 Use a minimum operating system
level of DYNIX/ptx V4.4.7
IBM Personal Computer Server 0 - 7 None
IBM RS/6000 and pSeries 0 - 31 AIX 4.3.3 supports 64 LUNs per
target.
Novell NetWare 0 - 31 None
Sun Ultra A 0 - 7 None
Sun Ultra B 0 - 31 Use Solaris 2.6, 7, or 8. (Solaris
2.6 and 7 require a Solaris patch to
enable 32 LUNs per target.)
Windows NT 4.0 0 - 7 None
Windows 2000 0 - 7 None
Notes:
1. The naming convention for the AS/400 defines a machine connected through a 6501
bus using SCSI cables.
2. You can use the Model 270 and 8xx for a fibre-channel connection.
General information about attaching to an open-systems hosts with
fibre-channel adapters
This section provides information about attaching an ESS to host systems with fibre
channel-adapters.
Fibre channel is a 100-MBps, full-duplex, serial communications technology to
interconnect I/O devices and host systems that are separated by tens of kilometers.
Fibre channel transfers information between the sources and the users of the
information. This information can include commands, controls, files, graphics, video,
and sound. Fibre-channel connections are established between fibre-channel ports
that reside in I/O devices, host systems, and the network that interconnects them.
The network consists of elements like switches, hubs, bridges, and repeaters that
12 ESS Host Systems Attachment Guide