Specifications

Escala Tower PL & S, E, T System Hardware
Chapter 3: External Storage and SAN Subsystems 22/116
9es3s1c3.doc
Rev 5.9
02/12/2003
2.1.5.2. Packaging
The DPE is proposed in a 20-disk cabinet, which includes a DPE (single or dual SP), a DAE enclosure
and, optionally, Standby Power Supplies (SPS).
2.1.5.3. Host connectivity and management
The DPE offers two fibre channel connectors per Storage Processor for servers, hubs, switches,
converters, and other fibre channel devices connection. The two ports correspond to a single fibre
channel loop. When connecting to a switch, a single connector must be used. In other circumstances,
both connectors are usable. The typical usage is the direct connection of two servers on a single SP.
The use of the two connectors to chain multiple devices (servers, SPs or other disk subsystems, …) is
not recommended.
The type of connector depends on the SP considered.
4500 5700
Interface t
y
pe
Short Wave Len
g
th laser
for multimode fibers
dual SC connectors
Active copper (30 m
cables)
DB9 connectors
MIA support n/a with MIA
The DPE can be managed in-band, (i.e. through the host fibre channel interfaces), from any server
connected to the DPE, using the Navisphere software.
A RS232 serial line is also available. Appropriate converters to obtain a DB25M interface and a
RS232 6m DB25F/DB25F cable are shipped with each DPE.