Understanding Serviceguard Package Dependencies, April 2009

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• Assign the highest priority to pkgB. If pkgB is the highest priority, the priorities assigned to
pkgA and pkgC do not matter.
• Set pkgB's priority to 10, pkgA's to 20 and pkgC's to 30.
4. You have three packages. PkgA requires that pkgB run on the same node
and pkgB requires that pkgC run on the same node. If pkgA fails, it should
not affect pkgB. If pkgB fails, it should not affect pkgC. Neither pkgA nor
pkgB should drag pkgC.
Note: This is the default behavior if you do not assign priority to packages with the same node up
dependencies.
• Solution 1:
– Set priority of all three packages to “no_priority”
• Solution 2:
– Assign the highest priority to pkgC. If pkgC is the highest priority, the priorities assigned to
pkgA and pkgB do not matter.
– Set pkgC's priority to 10, pkgA's to 20 and pkgB's to 30.