Summary
Agentless backups fail with I/O Exception after upgrading to DPX 4.4. or later versions.
Symptoms
Agentless Job reports show messages similar to the following:
X.X.X.X. SNBSVH_658E Task 2 encountered error. Error message There has been some problem while running VM Restore task, reason (java.lang.Exception: IO exception)
X.X.X.X SNBSVH_940W There was a problem running volume deduplication. Exception:IO exception
Resolution
For all DPX backup and restore operations using DPX 4.4 and later versions, TLS must be enabled on the NetApp Storage device.
Data ONTAP supports TLSv1, SSLv3, and SSLv2. TLSv1 is a protocol version higher than SSLv3, and SSLv3 is a protocol version higher than SSLv2. A negotiation process is built into the TLS and the SSL protocols to use the highest protocol version that is supported by both the client and the server for communication. For TLS to be used for communication, both the client requesting connection and the storage system must support TLS.
Steps:
To enable or disable TLS, enter the following command:
options tls.enable {on|off}
Use on to enable TLS.
For TLS to take effect on HTTPS, ensure that the httpd.admin.ssl.enable option is also set to on.
For more information about these options, see the na_options(1) man page.
For more information about FTPS and LDAP, see the Data ONTAP File Access and Protocols Management Guide for 7-Mode.
Use off (the default) to disable TLS.
When TLS is disabled, SSL is used for communication if SSL has previously been set up and enabled.