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8-66 HSZ70 Solutions Software V7.7 for Novell NetWare - PCI
Compaq Confidential – Need to Know Required
Writer: Robert Young Project: HSZ70 Solutions Software V7.7 for Novell NetWare - PCI Comments:
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Installing SBBs
This section describes the procedures for installing Storage Building Blocks
(SBBs) into an ESA10000. The SBBs consist of disk drives, power supplies,
and the external cache battery.
Installing and Verifying SBB Disk Drives
Additional SBB disk drives may be installed into the BA370 rack-mountable
enclosure that resides in your ESA10000. You may install controller
compatible 16-bit (-VW suffix) SBB disk drives. Figure A-44 shows how
additional SBB disk drives would be installed, in accordance with the
guidelines given here.
The recommended guidelines for installing SBB disk drives is as follows:
■ Divide the SBB disk drives (by capacity) between the number of
subsystems in the order. That is, each subsystem should receive equal
quantities of 9GB, 4GB, and 2GB disks, respectively.
■
The BA370 that contains the HSZ controllers is populated first, the
expander cabinet with PVA address set to two (2) is populated next,
followed by the expander cabinet with PVA address set to three (3), last.
■
BA370s are populated with the largest capacity disks first, in a bottom
to top, left to right manner. This gives the 9GB disks a higher priority
because SCSI IDs 0-7 are still the highest priority on USCSI. Since
those addresses exist on the main cabinet, installing all the 9GB disk
SBBs first (using this procedure) will give them the highest priority.
This procedure also ensures that the disks are evenly distributed (by
capacity) across the SCSI ports of the controller.
■
BA370s are populated from bottom to top (as viewed from the front of
the enclosure); that is, the lowest BA370 shelf is fully populated first,
etc. SBB disk drives are installed in each shelf starting on the left and
filling to the right.
■
Install 9GB drives first, followed by 4GB drives. Install 2GB drives last.
■
Shelves should be fully populated before SBB disk drives are inserted
into the shelves above.
Installing the SBB disk drives in above sequence distributes the SBB disk
drives evenly among the SCSI ports of the ESA10000.