Sun Microsystems StorEdge D2, Installation, Operation And Service Manual

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Chapter 1 Sun StorEdge D2 Array Overview 1-3
The Sun StorEdge D2 array can be connected to a host in one of the two following
ways:
■
By means of a Sun PCI Dual Ultra3 SCSI host adapter (160 MB/second) installed
in a host or
■
By means of a single-ended, 40 MB/second SCSI port attachment.on-board a host
Sun StorEdge D2 arrays ship in one of two bus configurations:
■
In a single-bus configuration (with one ESM)
For details, see Section 1.8.1, “Single-Bus Configuration” on page 1-20.
■
In a split-bus configuration (with two ESMs)
For details, see” Section 1.8.2, “Split-Bus Configuration” on page 1-21.”
In a split-bus configuration, the Sun StorEdge D2 array can be configured either
as a high-availability storage subsystem or as two separate storage subsystems.
1.2 Mounting Options
You can mount Sun StorEdge D2 arrays in the following two ways:
■
On the desktop
Mounting on the desktop is described in “To Mount the Array on a Desktop or
Tabletop” on page 2-5.
■
As rack-mounted systems
The arrays can be installed in qualified Sun cabinets. Mounting in cabinets is
described in the
Sun StorEdge D2 Array Cabinet Installation Guide .
You can purchase the hardware needed to install a Sun StorEdge D2 tabletop array
in a qualified Sun cabinet by ordering the universal rackmount upgrade kit.