Retention policy

DR Storage Only

  1. All backups are stored on NSS.
  2. Nothing is copied to LTS.
  3. Retention policy is applied on NSS.
  4. Retention is configured in terms of hourly snapshots, one snapshot per each daily, weekly and monthly bucket.

Long Term Storage Only

  1. Initially, backups are stored on NSS and managed by NSS.
  2. DR retention policy is NOT applied to the NSS.


For clarity of the article, we will define two terms: “backup type” and “backup sets”.