Mastering Proxmox - Third Edition

Multilevel data tiering

Data tiering is a concept where different files can be stored on different storage pools based on their performance requirements. For example, a virtual file server can provide very fast service if its VM is stored in an SSD storage pool, whereas a virtual backup server can be stored on slower HDD storage since backup files are not frequently accessed and thus do not require very fast I/O. Tiering can be set up using different shared storage nodes with different performance levels. It can also be set up on the same node by assigning volumes or pools to specific sets of drives.