ServerNet Nomadic Disk User's Guide

Operational Considerations for Remote Mirroring
ServerNet Nomadic Disk User’s Guide—425485-001
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Powering On and Off a Remote I/O Enclosure
Powering On and Off a Remote I/O Enclosure
Managing a remote I/O enclosure and remote external disk drives is similar to managing
any I/O enclosure or disk drives, but power-on cables cannot be used. This affects the
power on and power off procedures.
Powering On a System With a Remote I/O Enclosure
1. At the remote site:
a. Locate the power-on push button above the handle on the remote I/O enclosure.
b. Press and hold down the power-on push button for at least one second.
c. Check fan activity for the I/O enclosure by placing your hand near the outlet
grill located above slots 51 through 54 on the service side of the enclosure. If the
fans do not start turning a few seconds after you power on the I/O enclosure,
check that the AC power cord for the I/O enclosure is properly connected. If the
green LED lights are lit but the fans are not turning, power off the I/O enclosure
immediately and contact your service provider. If you cannot determine the
cause of the problem, contact your service provider.
2. At the local site:
a. Locate the power-on push button above the handle on either processor
multifunction (PMF) customer-replaceable unit (CRU) in group 01 (the group
containing processors 0 and 1).
b. Press and hold down the power-on push button for at least one second.
c. For each enclosure, check fan activity by placing your hand near the outlet grill
located above slots 51 through 54 on the service side of the enclosure.
d. For each component in the system enclosures, make sure that the green LEDs
are lit and that none of amber LEDs are lit.
e. For troubleshooting information, refer to the Himalaya S-Series Operations
Guide.
3. At the remote site:
a. If you know AC power is being supplied to the I/O enclosure, but it still does
not appear to be powered on, the system might be running internal tests. Wait
several minutes; it can take as long as 10 minutes for the POSTs to finish.
b. If the green LED is not lit after POSTs finish, repeat the power-on procedure. If
one green LED still does not light, a system component might have failed its
POST.
4. At the local site, you can now start your system as described in the Himalaya
S-Series Operations Guide.