I just inherited a client that uses a Netapp FAS960 fibre attached to an AIX TSM server for the DB/LOG and stgpool space. Using the "sanlun show lun" command I see that there are 4 paths listed to each LUN going over FCS2 and FCS23. I also appears that the multi-pathing software was not installed. Looking at the hdisk's assigned to my VG (lsvg -p) shows that the hdisks defined to the VG's are evenly split across the FCS2/3 adapters. When I run nmon I only see traffic going down FCS3 and the activity I see on the hdisks are not the ones that are defined to the VG.
Unfortunately Netapp doesn't allow you very much access to their support site unless you are a customer and the doc's I've been able to read aren't very helpful. I'm just curious if the NetappLUN drive is somehow redirecting the I/O down a "primary" path. I read in the SANPath gude that each path is either primary or seconday. I'm trying to find out if the multipathing software was licensed and just not installed, but what I'm seeing is very confusing. Anyone out there with some experience with Netapp's and AIX care to share some insight?? Bill Boyer "Growing old is mandatory, growing up is optional" - ??
