IBM N Series Hardware Manual page 285

Support for NFS environments
Table 20-1 shows the major and minor upgrades that have NDU support in an NFS
environment.
Table 20-1 NDU support for NFS environments
Source Data ONTAP version
7.1, 7.1.1
7.1.2 (and later)
7.2, 7.2.1, 7.2.2
7.2.3 (and later)
7.3 (and later)
8.0 (and later)
8.1 (and later)
a. Customers upgrading from Data ONTAP 7.3.2 can do major version NDU to Data ONTAP 8.0
and 8.1 releases. This is an exception to the guidelines for major version NDU. Customers
running Data ONTAP 7.3 or 7.3.1 must do a minor version NDU to 7.3.2 before upgrading
directly to 8.1.
Support for CIFS environments
System NDU is not currently supported for CIFS, NDMP, FTP, or any other protocol that does
not have state recovery mechanisms.
Support for FC and iSCSI environments
Table 20-2 shows the major and minor upgrades that have NDU support in a block storage
(Fibre Channel or iSCSI) environment.
Table 20-2 NDU support for block storage environments
Source Data ONTAP version
7.1, 7.1.1
7.1.2 (and later)
7.2, 7.2.1, 7.2.2
7.2.3 (and later)
7.3 (and later)
8.0 (and later)
8.1 (and later)
Minor version NDU
supported
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Minor version NDU
supported
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Chapter 20. Designing for nondisruptive upgrades
Major version NDU
supported
No
Yes
No
Yes
a
Yes
Yes
Yes
Major version NDU
supported
No
Yes
No
Yes
Yes
Yes
Yes
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