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@danm66: We've had 49 and 67 with VMware Data Recovery, and VMware didn't know how, and why the VM had not failed!
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I don't understand, either, how the backup softwares can make calls that create more snaps than is allowed otherwise.
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I had a VM with 100 snapshots that I no longer have. &nbsp;How can you tell if the snapshots are no longer in use so they can be removed?
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I had a VM with 100 snapshots that I no longer have.  How can you tell if the snapshots are no longer in use so they can be removed?

VMWare ESX 4 snapshots

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.

VMware

Virtualization is the act of creating a virtual (rather than actual) version of something, including (but not limited to) a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Virtualization is usually the creation of a system that executes separate from the underlying hardware resources, or the creation of an entire desktop for systems located elsewhere, similar to thin clients.