# Feature History for SME Disk Management

Table 1-14 lists the release history for this feature.

Table 1-18 Feature History for SME Disk Configuration

Feature Name | Releases | Feature Information
Master Key Rekeying | 5.2(6) | A master key is used to wrap the disk keys in the cluster.
Signature and Non-signature Mode Clusters | 5.2(6) | Two modes to configure clusters.
SME disk configuration | 5.2(1) | SME disk is a new feature that is introduced in Release 5.2(1).

Note RSA Key Manager is not supported for SME Disk. It is only applicable for SME Tape.