Oracle Exalogic Elastic Cloud, Руководство пользователя

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Tip:
In an Exalogic machine full rack, compute nodes 1 to 15 (start from the bottom
of the rack) connect their InfiniBand port 1 to gateway switch1 and their
InfiniBand port2 to gateway switch 2. Similarly, compute nodes 16 to 30 are
connected to gateway switches 3 and 4.
16.3.3 Identify All InfiniBand Switches in the Fabric
To identify all InfiniBand switches (Sun Network InfiniBand Gateway Switch or Sun
Datacenter InfiniBand Switch 36) running master or standby instances of Subnet
Manager (SM) on the fabric, run the following command on any of the InfiniBand
switches:
# ibswitches
This command displays the GUID, name, LID, and LMC for each switch. The output
of the command is a mapping of GUID to LID for switches in the fabric.
16.3.4 Determine the SM Priority on an InfiniBand Switch
After identifying the InfiniBand switches and their IP addresses, you must log in to
each of the switches and run the following command to identify the InfiniBand switch
where the master Subnet Manager (SM) is running:
# getmaster
This command displays output, as shown in the following example:
Local SM enabled and running
20111122 08:45:02 Master SubnetManager on sm lid 11 sm guid 0x21283bad45c0a0 : SUN
IB QDR GW switch el01gw04 10.10.10.10
16.3.5 Log In to the InfiniBand Switch That Runs Master SM
After identifying the InfiniBand switch where master SM is running, log in to the
ILOM shell for the InfiniBand switch as the ILOM administrator (
ilom-admin
). After
logging in, run the
show /SYS/Fabric_Mgmt
command to log in to the restricted
Linux shell. To view a list of available commands, you can run the
help all
command.
16.4 Move from a Default Partition to a Custom Partition
Moving from a configuration that does not use InfiniBand partitions (that is, uses the
default partition only) to a configuration with partitions involves the following steps:
• Making all Exalogic compute nodes limited members of the default partition
Note:
By default, all Exalogic compute nodes are full members of the default
partition.
• Disabling IPoIB on the default partition
Move from a Default Partition to a Custom Partition
Use InfiniBand Partitions in Exalogic Physical Environments 16-5