Revision 877d0386 hbal.1

b/hbal.1
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.BI "[-m " cluster "]"
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.BI "[-n " nodes-file " ]"
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.BI "[-i " instances-file "]"
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.BI "[--max-cpu " cpu-ratio "]"
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.BI "[--min-disk " disk-ratio "]"
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.B hbal
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.B --version
......
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\(em
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percentage of instances living (either as primary or secondary) on
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offline nodes
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.TP
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\(em
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coefficent of variance of the ratio of virtual-to-physical cpus (for
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primary instaces of the node)
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.RE
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The free memory and free disk values help ensure that all nodes are
......
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.RS 4
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.TP 3
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\(em
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CPU usage of instances, combined with VCPU versus PCPU count
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CPU usage of instances
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.TP
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\(em
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Disk IO usage
......
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.B f_dsk
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free disk
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.TP
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.B pcpu
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the number of physical cpus on the node
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.TP
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.B vcpu
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the number of virtual cpus allocated to primary instances
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.TP
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.B pri
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number of primary instances
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.TP
......
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.TP
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.B p_fdsk
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percent of free disk
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.TP
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.B r_cpu
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ratio of virtual to physical cpus
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.RE
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.TP
......
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automate the execution of the balancing.
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.TP
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.BI "--max-cpu " cpu-ratio
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The maximum virtual-to-physical cpu ratio, as a floating point number
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between zero and one. For example, specifying \fIcpu-ratio\fR as
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\fB2.5\fR means that, for a 4-cpu machine, a maximum of 10 virtual
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cpus should be allowed to be in use for primary instances. A value of
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one doesn't make sense though, as that means no disk space can be used
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on it.
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.TP
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.BI "--min-disk " disk-ratio
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The minimum amount of free disk space remaining, as a floating point
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number. For example, specifying \fIdisk-ratio\fR as \fB0.25\fR means
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that at least one quarter of disk space should be left free on nodes.
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.TP
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.B -v, --verbose
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Increase the output verbosity. Each usage of this option will increase
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the verbosity (currently more than 2 doesn't make sense) from the

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