Digital Equipment StorageWorks UltraSCSI DS-BA370 Series, User Manual

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Assembling an UltraSCSI RAID Enclosure
B–2 UltraSCSI RAID Enclosure
Installation Sequence
The basic installation sequence is the same for all UltraSCSI RAID
subsystems, whether they use one, two, or three DS–BA370 enclosures. To
reduce the possibility of multiple, interacting problems the preferred
assembly sequence is as follows:
1. Assemble and test the master enclosure.
2. Assemble the first expansion enclosure.
3. Connect the first expansion enclosure to the master enclosure and test
the subsystem operation.
4. Assemble the second expansion enclosure.
5. Connect the second expansion enclosure to the master enclosure and
test the subsystem operation.
The assembly procedures for an enclosure are almost identical to those
described elsewhere in this publication. Therefore, rather than repeating the
procedures, the following sections primarily address special assembly
considerations. The recommended sequence for assembling an UltraSCSI
RAID enclosure is as follows:
1. Mount UltraSCSI RAID enclosure in the data center cabinet or the
departmental server cabinet.
2. Install the power system.
3. Install the EMU.
4. Install the PVA.
5. Install the disk drive SBBs.
6. Cable and install the I/O modules.
7. Install the array controllers and cache modules.
8. Install the ECBs.
9. Configure the subsystem as described in Chapter 2, “Configuring an
UltraSCSI RAID Subsystem.”