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I'm working in a large enviroment where hundreds of datastores will be changed due to SAN units being replaced. After all VMs have been migrated to new datastores on the new SAN, is there any harm in just removing the zoning &nbsp;on the SAN switcheds and doing a rescan? These are HPDL380 series servers attached to EMC vmax. <br />
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I'm familiar with the KB below which talks about dismounting and detaching but I'm wondering if it' even necessary in my situation. We regularly change masking views on the storage for the purpose of migrating from one cluster to another and after, when the masking views are removed, there's no impact to the servers. <br />
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<a href="http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2004605" rel="ugc nofollow">http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2004605</a>
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I'm working in a large enviroment where hundreds of datastores will be changed due to SAN units being replaced. After all VMs have been migrated to new datastores on the new SAN, is there any harm in just removing the zoning  on the SAN switcheds and doing a rescan? These are HPDL380 series servers attached to EMC vmax. 

I'm familiar with the KB below which talks about dismounting and detaching but I'm wondering if it' even necessary in my situation. We regularly change masking views on the storage for the purpose of migrating from one cluster to another and after, when the masking views are removed, there's no impact to the servers. 

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2004605

Removing datastores from esx clusters

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.

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Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media used to retain digital data. In addition to local storage devices like CD and DVD readers, hard drives and flash drives, solid state drives can hold enormous amounts of data in a very small device. Cloud services and other new forms of remote storage also add to the capacity of devices and their ability to access more data without building additional data storage into a device.