The default Mount Limit value is 20 and the maximum value for this parameter is 4096. This means that up to 4096 individual files can be opened at a single time.

References:

IBM Spectrum Protect for Linux Version 8.1.2, Administrator's Reference, page 231

A snapshot saves a read-only copy (called a snapshot) of a designated MTree at a specific time. You can use a snapshot as a restore point, and you can manage MTree snapshots and schedules and display information about the status of existing snapshots.

References:

Dell EMC Data Domain Operating System Version 6.1, Administration Guide, page 206

Data Domain Retention Lock Compliance Edition meets the strictest data retention requirements from regulatory standards such as SEC17a-4.