Theoretically, the cluster distributes all SCAN VIP across all nodes evenly according to some algorithm, but sometimes you would like to relocate their host node.… Read More »How to Relocate SCAN and SCAN_LISTENER
PRCR-1065 CRS-2974 When we tried to stop SCAN for some reason, we got errors like this: [grid@primary01 ~]$ srvctl stop scan PRCR-1065 : Failed to… Read More »How to Resolve PRCR-1065 and CRS-2974
You cannot stop SCAN before stopping SCAN_LISTENER, so if you want to restart SCAN, you have to consider how to handle SCAN_LISTENER. Soft Restart We… Read More »How to Restart SCAN
In grid infrastructure installation, OUI expects that SCAN VIP is returned in a round-robin fashion through nslookup the DNS. Without DNS, it can only depend… Read More »Can we Setup SCAN VIP without DNS
Oracle recommends that you allocate 3 or above SCAN VIP to load balance incoming connections. The more SCAN VIP, the more clients and connections they… Read More »Can we Setup Only One SCAN VIP
Servers that have multiple network interfaces may offload the traffic by adding another subnet to grid infra. In this post, I demonstrate how I add… Read More »How to Add a Subnet to Grid