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manual abstract
SCSI Fibre Channel Fabric Router
SCSI-Fibre Channel Router/
Extender Defined
When a customer needs to connect the HP e3000 to a native
Fibre Channel mass storage disk array, the SCSI-FC Fabric
To the host, the SCSI-FC Router is transparent and the device on
Router (A5814A-003) is used. Only one SCSI-FC Router is
the Fibre Channel loop appears as a SCSI device. Since the
required between the host server and the mass storage device.
SCSI-FC Router appears to the host as a parallel SCSI device, its
The SCSI-FC Router converts from SCSI-2 at the host to Fibre
usage and installation are very simple. The SCSI-FC Router
Channel Arbitrated-loop for connection to Fibre Channel mass
attaches directly to the SCSI host adapter. The SCSI-FC Router is
storage devices.
supplied in a self-contained 3” (height) x 4.25” (width) x 1 1”
(depth) enclosure that can either be installed on a desktop or
The fabric routers can be connected to a hub or FC switch, such
four-abreast in the 19” rackmountable Hub Enclosure.
as the Brocade 2400 or 2800 Silkworm switch, when consoli-
dating port connections as shown in diagram 1.
There are two SCSI-FC Routers in a single Fibre Channel loop.
To prevent confusion, diagram 2 defines the various SCSI-FC
Performance (SCSI-FC Bridges)
Routers by their positions within the loop. The SCSI-FC Router
directly attached to the host or the server is the “host router” and
the SCSI-FC Router directly connected to the SCSI devices (disk
The HP e3000 does not support a native fibre channel solution
or tape drives) is the “device router”.
today. HVD SCSI-2 Ultra has a maximum throughput of about 40
megabytes per second while HVD SCSI-2 Fast is about 20
The SCSI-Fibre Channel Router (SCSI-FC Router) is a simple to
megabytes per second. It is highly recommended that no more
maintain stand-alone SCSI extender. By converting SCSI to
than 8 LUNS be configured on a single HBA. The HP e3000 is
Fibre Channel, it can provide lengths of 30m (98 ft) to 500m
a high performance OLTP platform and one HBA and SCSI-FC
(1500 ft) depending on the fiber optic cable used.
Router will not handle the total throughput of a large disk array,
like an XP512 using FC as it’s connection medium. To support
Note: 5814A SCSI-Fibre Channel extender uses microcode revi-
more than 8 LUNS on a FC disk array, multiple SCSI-FC Routers
sion 7.60 or later. A5814A-003 SCSI-Fibre Channel Fabric
can be connected in parallel. However, the Host end of each
Router configuration uses microcode revision 8.01.0A or later.
SCSI-FC Router must be connected to a separate SCSI HBA in
the HP e3000, as shown in diagram 1. SCSI-FC Routers con-
The A5814A SCSI-Fibre Channel Extender is not field upgrade-
nected in parallel allows the I/O to be spread over multiple
able to the A5814A-003 SCSI-Fibre Channel Fabric Router.
HBAs in the host server.
multiple scsi-fc routers each attached
to its own HBA in the hp e3000
scsi cables
fibre channel cable to
XP512, XP48 or VA7100
Hub or FC switch
(Brocade 2400 or 2800)
A5814A-003
Fabric Diagram 1
host/server
jbod
fibre channel
host router
device router
optic cable
A5814A
A5814A
attached
scsi devices
Extender Diagram 2
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