Guidelines for Downgrading SDV

As of MDS NX-OS Release 4.1(1a), SDV supports failover and fallback attribute configuration. Downgrading to an earlier release requires you to remove the attribute configurations before downgrading.

As of SAN-OS Release 3.1(3), SDV supports virtual initiators and LUN zoning. Consequently, in SAN-OS Releases 3.1(3) and later, if virtual initiators are configured or SDV devices are configured as LUN-based members of a zone, a configuration check will indicate that downgrading to SAN-OS Release 3.1(2) may be disruptive and is therefore not recommended.

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