Sun Microsystems Sun HPC 3.0, Руководство пользователя

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(Continuation)
HOST 1 = host2
HOST 2 = _%host3
HOST 3 = _%host4
A caveat to keep in mind when running sm_config in stand-
alone mode is that, sm_config cannot guarantee the coherency
of the /etc/sma.config generated during the different invo-
cations (for eg. in the above case - /etc/sma.config on
host2 versus the ones on host1, host3 and host4) if the user
were to supply inconsistent input data for the two cases.
3. Number of Switches section - Accepts input for the total
no. of switches in the cluster.
However, if the cluster being configured has some unused SCI
adapters
meant for use in the future, then the cluster
should be configured as it would look in the future, when
all the adapters are fully connected. For instance, a 1-
switch cluster containing 4 hosts with 2 adapters on each
(second set of adapters idle), which will later evolve into
a 2-switch cluster should be configured as a 2-switch clus-
ter.
This ensures that when the cluster evolves to its final form
in future, new communication channels (SMA sessions) will be
created on the new links (say, through a new switch) on the
fly. This eliminates having to run sm_config later and
rebooting the machine. A detailed example of this is given
in the input template file.
A sample template for this section -
Number of Switches in cluster = 2
4. Number of Direct Links section - Accepts input for the
total no. of direct SCI links in the cluster. A sample tem-
plate for this section -
Number of Direct Links in cluster = 2
5. Allow Rings section - Whether the cluster supports confi-
gurations
with multiple hosts connected to the same port of
the same switch. A sample template for this section -
Allow Rings in cluster (Y/N)? = N
6. Adapter information section - Accepts detailed informa-
tion for each adapter on each host. A sample template for
this section is -
host 0 :: adp 0 is connected to = switch 0 :: port 0
host 0 :: adp 1 is connected to = link 1 :: endpt 0
7. Network IP address section - Accepts the first 3 octets
(network) of the IP address for a particular switch or link.
A sample template for this section -
Network IP address for Switch 0 = 204.152.65
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