User's Guide

Installing HyperFabric
Installing HyperFabric Adapters
Chapter 3
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• If the necessary driver is not present and the driver is a dynamically loadable kernel
module (DLKM), it can be loaded manually. See the “Dynamically Loadable Kernel
Modules” section in “Interface Card OL* Support Guide” for more information.
• If the driver is static and not configured in the kernel, then the card cannot be added
online. The card could be physically inserted online, but no driver would claim it.
If there is any question about the driver’s presence, or if it is uncertain that the
replacement card is identical to the existing card, ioscan can be used together with rad
to investigate.
If more than one operational HyperFabric adapter is present when SMH requests the
suspend operation for all ports on the target adapter, HyperFabric will redirect the
target adapter’s traffic to a local backup adapter using local failover. Client applications
using the replaced adapter will not be interrupted in any way.
If the adapter being replacing is active and it is the only operational HyperFabric
adapter on the HP 9000 system, SMH displays the following warning message:
WARNING: You have 1 operational HyperFabric card. If you go ahead with this
operation you will lose network access via HyperFabric until the on-line
replaced HyperFabric card becomes operational.
You are asked if you want to continue. If you reply Yes, client applications are
suspended. Replace the adapter according to the procedure described in the Interface
Card OL* Support Guide.
When an adapter has been replaced, client application activity resumes unless the TCP
timers or the application timers have popped.
CAUTION Do not use the clic_start command or the clic_shutdown command, while an
installed adapter is suspended. Do not use SMH to start or stop HyperFabric while an
installed adapter is suspended. The operation will fail and an error message will be
displayed.
After a HyperFabric adapter has been replaced, SMH checks the replacement adapter to
make sure it is permitted according to the like-for-like rules. If the adapter is permitted,
SMH automatically activates it. If it is not permitted, SMH displays an error message.