Changing The Node Description And Ip Address Of An Ioa Cluster - Cisco MDS 9000 series Configuration Manual

Chapter 4 Configuring IOA Using the CLI
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Changing the Node Description and IP Address of an IOA Cluster

To perform any of the following tasks, follow the steps defined in the
Description and IP Address of an IOA Cluster, page
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OL-20708-01, Cisco MDS NX-OS Release 5.0(1a)
Command
sjc-sw2# config t
sjc-sw2(config)# ioa cluster
tape_vault
sjc-sw2(config-ioa-cl)# tune
timer rscn-suppression seconds
sjc-sw2(config-ioa-cl)# tune
timer load-balance target
seconds
sjc-sw2(config-ioa-cl)# tune
timer load-balance global
seconds
sjc-sw2(config-ioa-cl)# tune
ta-buffer-size KB
sjc-sw2(config-ioa-cl)# tune
wa-buffer-size MB
sjc-sw2(config-ioa-cl)# tune
wa-max-table-size KB
Change the node-description (IP address) and node IP-address of a cluster.
Change node-description(DNS name) of a cluster.
Change the node-description from IP address to DNS name and vice versa.
Purpose
Enters configuration mode.
Enters the cluster configuration mode.
Specifies the IOA RSCN suppression timer value. It is
the amount of time the IOA process waits before it
queries FCNS (name server) after learning about
changes in the network. This helps alleviate the
amount of duplicate or repeating query in case of
rapid network changes. The value can vary from 1 to
10 seconds. 5 seconds is the default.
Specifies a IOA target load-balance timer value. It is
the amount of time the IOA process waits before it
attempts to load balance all IT Nexuses of a certain
target port after a change in connectivity has been
detected. The value can vary from 2 to 30 seconds. 2
seconds is the default.
Specifies a global IOA load-balance timer value. It is
the amount of time the IOA process waits before it
attempts to load balance all IT Nexuses configured in
a cluster after a change in connectivity has been
detected. The value can vary from 5 to 30 seconds. 5
seconds is the default.
Specifies the tape acceleration buffer size in KB. It is
the amount of buffering allowed for flow control
during tape acceleration. The value can vary from 64
to 12288 KB or Auto. Auto is the default. Auto option
takes WAN latencies and speed of the tape device into
account to provide optimum performance.
Specifies the write acceleration buffer size in MB. It
is the amount of buffering allowed for flow control
during write acceleration. The value can vary from 50
to 100 MB. 70 MB is the default.
Specifies the Write Max Table size in KB. It is the
maximum number of active exchanges supported on
an IOA flow. The value can vary from 4 to 64 KB. 4
KB is the default.
Guidelines for Changing the Node
4-18.
Cisco MDS 9000 Family I/O Accelerator Configuration Guide
Additional Configurations
4-17