NonStop S-Series System Expansion and Reduction Guide

Planning System Reduction
HP NonStop S-Series System Expansion and Reduction Guide—522465-009
3-2
Considerations
Considerations
Before you remove any enclosures, answer the following questions about the donor
system:
Are Both ServerNet Fabrics Up?
For online reduction to succeed, both ServerNet fabrics in the system must be fully
operational. If any ServerNet alarms have been generated, you must correct these
problems before you reduce the system online.
Can an Enclosure Be Removed Easily?
To be easily removed, an enclosure should be either in a single-high stack or on the
top of a double-high stack.
Removing an enclosure from the bottom of a double-high stack requires extra people
and clearance space to:
•
Lift the top enclosure far enough that the bottom enclosure can be rolled out from
beneath it
•
Ensure that, as the enclosures are rolled apart, no cables or cords are twisted,
crushed, or detached
•
Lower the top enclosure safely to the floor, onto another base enclosure, or onto a
frame base
The number of extra people and clearance space you need depends on the hardware
components in the donor system and on the site layout:
Topic Page
Are Both ServerNet Fabrics Up?
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Can an Enclosure Be Removed Easily? 3-2
Remove All Enclosures at Once or One at a Time? 3-3
Is the Enclosure Providing Critical Resources? 3-4
Is the Enclosure an IOAM Enclosure? 3-5
Caution. Enclosures are not customer-replaceable units (CRUs). Removing enclosures
should be done only by service providers trained by HP.
For Information About See
Procedures for removing enclosures NonStop S-Series Service Provider Supplement
(available to service providers)