Users Guide
Table Of Contents
- Dell EMC PowerStore Virtualization Infrastructure Guide
- Contents
- Additional Resources
- Introduction
- Overview of the PowerStore Virtualization Infrastructure
- Virtualization configuration in PowerStore appliances
- Managing virtualization components in the PowerStore Manager
- Configure a vCenter Server connection
- Updating internal ESXi hosts on PowerStore X model appliances
- Adding an external ESXi host to a PowerStore X model vSphere cluster
- Using an external ESXi host with a PowerStore cluster
- Additional VMware software and configuration
- VMware NSX-V
- Best practices and limitations
VMware snapshot limitations
vSphere allows a maximum snapshot tree depth of 31 for a VM. Scheduled and manual snapshots interact with this limit in
different ways.
Scheduled snapshots
When you create a VM snapshot schedule as a part of a protection policy, you can set a retention policy specifying how long
to keep snapshots. Snapshots older than the age that the retention policy specifies are deleted. This policy helps keep the total
number of snapshots below the limit.
If the maximum number of snapshots is reached, the oldest snapshot is automatically deleted when the protection policy
creates the next snapshot. Although manual snapshots count towards this limit, they are never deleted automatically unless the
expiration date is reached.
Manual snapshots
Manual snapshots that are created with PowerStore Manager or vSphere cannot have a retention policy and are never deleted
without user action. If the maximum number of snapshots is reached, no more can be created unless you delete snapshots to
make room.
32 Best practices and limitations