When you are using Veritas Dynamic Multipathing (VxDMP), you must perform some configuration tasks to enable multipathing.
There are several tunable parameters that you might need to set, depending on your version of Linux. These parameters might include:
- vxdmpadm start restore interval
- vxdmpadm settune dmp_lun_retry_timeout
- vxdmpadm settune dmp_path_age
In addition, if you are running either Red Hat Enterprise Linux 6 series, Red Hat Enterprise Linux 7 series, or SUSE Linux Enterprise Server 11 series, you must modify the /etc/udev/rules.d/40-rport.rules
You must have the Array Support Library (ASL) and the Array Policy Module (APM) that Symantec provides for NetApp storage systems installed. The amount of work you must do to set up the ASL and APM depends on your version of Veritas Storage Foundation.