Stratus ftServer 4500 - Page 68

Removing and Replacing a CPU-I/O Enclosure
5-12 Stratus ftServer 2600, 4500, and 6300 Systems: Operation and Maintenance Guide (R639)
NOTES
1. The replacement enclosure will contain the same
CPU and memory configuration as the enclosure you
are replacing. Do not remove processors or memory
modules from the enclosure when you return it to
Stratus or a vendor.
2. Before you remove the disk drives from the old
enclosure, label the drives on the bezel of each drive
to ensure that you can replace them in the proper
order. The numerical slot designation for each disk is
noted on the front of the drive bay.
When you are finished removing components from the old CPU- I ⁄ O enclosure, set it
aside for repacking. See “Repacking CRUs” on page 4-3.
Replacing a CPU-I/O Enclosure
NOTES
1. If replacing both CPU-I/O enclosures, be aware that
the first CPU- I ⁄ O enclosure to complete power up is
the
primary (boot) or active enclosure: its PRIMARY
LED will be lit.
2. Each CPU- I ⁄ O enclosure is identical (except
possibly for the single tape controller that may be
installed) and may occupy either of the two enclosure
slots.
WARNING
!
To avoid personal injury or damage to the system, two
persons are required to replace an enclosure.
1. With one person supporting the enclosure on each side, align the rear end of the
enclosure with the appropriate rails on both sides (Figure 5-6). Keep the enclosure
level.