Installation guide

Table 3–2: DSSI Installation

Location Single-Host Conﬁguration

DSSI VAXcluster

Cable Installation

ISE in VAX 6000 No change. All cables are fac-

tory installed.

Attach cables from SF7x to ad-

ditional host systems. †

ISE in SF2xx

storage array cabinet

Attach cables from host system to SF2xx cabinet.

Bus Termination

Host I/O bulkhead Install termination on each unused connector as neces-

sary.

SF7X Enclosure Box Install termination on eachunused connector on rearpanel, as nec-

essary.

Node ID Settings

KFMSA No change. Leave at factory set-

ting of node ID 7.

Set second host node ID to 6

and third host to 5.

ISEs No change. Should be correctly set at factory.

Tapes are set to node ID 0; through-bus SF7x boxes are

node IDs 1 to 4. split-bus SF7x boxes (for single- and dual-

host) are node IDs 5 and 6.

ISE Parameter Changes

ISEs See KFMSA Module Installation and User Manual for explicit di-

rections on changing parameters.

Adding Hosts to Existing DSSI Subsystems

New and original hosts Reconﬁgure DSSI storage bus, setting node IDs, termina-

tion, and possibly changing split-bus.

Assumes a new installation only; does not apply to add-on conﬁgurations.

See the SF2xx Installation Manual for complete cabling instructions.

See the KFMSA Module Installation and User Manual for changing node IDs.

†These callouts refer to the manuals listed in Table 3–1.

Connecting to a DSSI Subsystem 3–3