Specifications

Maintenance Network
4-2 Stratus ftServer V 100, V 200, and V 400 Systems: Site Planning Guide (R543)
If the U772 Ethernet and U773 fibre channel switches are present in your system, you
must connect:
 The U772 Ethernet switches to the ftServer system’s embedded Ethernet ports. If
your module has a network I/O enclosure you must disconnect it from the
embedded Ethernet ports and connect it to U575V or U577 Ethernet adapters.
 The RSN console server and UPS units to the U772 Ethernet switches.
You can also connect the PC console to a U772 Ethernet switch for management of
ftScalable Storage arrays.
Maintenance Network
The CAC or other authorized Stratus service representative uses the U772 Ethernet
switches as a private maintenance network for remote service and debug operations.
Do not connect any other network to the U772 Ethernet switches. Instead, connect the
site Ethernet ports, hubs, or switches (that you must supply) to unused Ethernet
adapter ports in your ftServer system.
NOTES
1. The U772 Ethernet switches are reserved for Stratus
support and maintenance operations only. You cannot
connect any other devices to them.
2. The U772 24-Port 10/100 Ethernet Switch is the only
supported Ethernet switch. You cannot use any other
type of hub or switch in the maintenance network.
Fibre Channel Connections
The following Fibre Channel devices can connect to the ftServer module.
 AA-T53300 and AA-T53400 tape-drive enclosures connect to U528 or U534V PCI
adapters.
 In a base ftServer module configuration (with no U772 Ethernet and U773 fibre
channel switches), D910 storage enclosures connect to U528 or U534V PCI
adapters.
 In an ftServer module configuration that includes U772 Ethernet and U773 fibre
channel switches, D910 storage enclosures and the optional ftScalable Storage
arrays connect to U773 12-Port Fibre Channel Switches. The switches connect to
U534V adapters. If ftScalable Storage arrays are not present, the switches may
connect to U528 PCI adapters.