Secondary storage is recommended for backup data to ensure backups do not reside on primary storage. The consolidated cluster uses vSAN for primary storage, and VMware recommends the use of secondary storage for backup.

The consolidated cluster uses vSAN for primary storage. Use secondary storage for backup.

Table 1. Secondary Storage Design Decisions

Decision ID

Design Decision

Design Justification

Design Implication


Use a secondary storage solution for management and workload backup data.

Separate primary virtual machine storage from backup data in case of primary storage failure.

Secondary storage is required.


Set up the secondary storage with enough size and I/O for the backup operations during the scheduled backup window.

The backup and restore process is I/O intensive.

The backup retention process is a storage-constrained operation.

The secondary storage solution has an impact on the backup and restore SLA.