HP Access Control Software Manual de usuario descargar pdf (Pagina 16)

August 2017

FS4 devices with HP AC versions prior to 15.3.1

9 NLB considerations for order of upgrade 15

9 NLB considerations for order of

upgrade

When upgrading HP AC running on a Network Load Balancer (NLB) node, that node needs to first be brought

off-line in the NLB manager so it will not be used.

When the first node has been updated and brought back online in the NLB manager, the remaining nodes

should be brought off-line until they are also updated. Using this process will avoid having mixed HP AC

versions within a single NLB cluster.

With more than 2 nodes you may consider the following strategy:

• For three nodes:

o Take node 1 offline and upgrade HP AC on it

o Bring node 1 back online

o Take nodes 2 and 3 offline upgrade HP AC on them

o Bring nodes 2 and 3 online again

• For four or more nodes:

o Take half of all nodes offline and upgrade HP AC on them

o Bring the upgraded nodes online

o Take the remaining nodes offline and upgrade HP AC on them

o Bring all the nodes online again

Non-clustered HP AC 15.2.x servers and 15.3.x servers can operate in the same environment while

upgrades are completed although it is recommended that the migration strategy be discussed and planned

to validate proper functionality.

10 Multi-domain

If upgrading HP AC to take advantage of Multi-Domain support in version in 15.3 the Domain field in the IRM

Authentication database will need to be updated via SQL script. Consult with HP for recommendations on

this environment architecture change.

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HP Access Control Software Manual de usuario Pagina 16