Case 1: Investigation shows that HA Lab systems and HA Production systems all backup to the same NFS location which is not the one currently configured in /etc/vfstab on the Secondary Lab system.
From mount location:
CMSADM-r16.3eg.f-150131231410-PrimaryCMSLab
CMSADM-r16.3eg.f-150131232650-SecondaryCMSLab
CMSADM-r16.3eg.f-150131234834-PrimaryCMSProduction
CMSADM-r16.3eg.f-150201000204-SecondaryCMSProduction
()-(Primary)=#Y.Y.Y.Y:/vol/v_wag2_bsas_1344_Avaya - /NS_backup_dir nfs - yes rw,bg,soft,
intr,retry=10,vers=3
()-(Secondary)=#X.X.X.X:/vol/v_wag2_bsas_1344_Avaya - /NS_backup_dir nfs - yes rw,bg,soft,
intr,retry=10,vers=3
The rpcbind package was removed from CMS R18.0.2.0. This means that only connections to NFSv4 servers will work.