upgrading my virtual infrastructure vmware

Hi,

I currently have a vcenter server running 5.1 and 3 hosts running 5.1

they are in a cluster. I'm upgrading all today

I've already upgraded my vcenter server to 5.5

next step is to upgrade the hosts. I've had failures on my sd cards so I'm going to rebuild the hosts with new esxi 5.5 builds.

I'm going to do it one by one so there is no downtime.

1) Can I take a host down rebuild it and add it to the same cluster?

2) Do I configure the network and storage after or before adding it to the cluster?

3) will all my ha and other configurations stay as I've upgraded the vcenter rather than rebuild it?

Thanks
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Technical InformationAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
1) Can I take a host down rebuild it and add it to the same cluster?

Yes.

2) Do I configure the network and storage after or before adding it to the cluster?

You will need to configure networking on the host after rebuilding, configure storage, and also testing. before adding back to the cluster.

3) will all my ha and other configurations stay as I've upgraded the vcenter rather than rebuild it?

Any configuration which is specific to vCenter Server.

However, adding hosts back to a cluster will add the HA Agent back to them.
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Technical InformationAuthor Commented:
Thanks Andrew,

Do you now of any compatiblity issue with the P2000 G3 MSA and EXI 5.5

I cant see the datastores?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Is it on the HCL ?
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Technical InformationAuthor Commented:
resolved, it's because the Vaai driver was missing
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