Do I need make LUN number the same when mount luns into vmware cluster

I need add one more host to an existing vmware cluster.  there are bunch of luns mounted on both existing hosts. Their number are irregular. Some of them on a host are even the same. I would like to know if I want to mount those same luns to the new host to achieve vmotion in the future, do I need make those lun numbers the same as they are on those two existing hosts?

Please see the attachment.

Thank you.
Lun-number-doubt.png
Jason YuAsked:
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Paul SolovyovskyConnect With a Mentor Senior IT AdvisorCommented:
The LUN numbers don't need to be unique as ESXi hosts and vCenter don't use them.  If you want to use VMware Site Recovery Manager then you'll need to make the LUNs unique as SRM uses LUN #s for replication purposes.
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Jason YuAuthor Commented:
thanks for update. where I can get the site recovery manager module, is it a separated product or just a module?

thanks.
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Paul SolovyovskySenior IT AdvisorCommented:
It's a separate VMware product.  If you're not using it you will not have an issue.
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