We have a requirement wherein we need to install ECC 6.0 EHP 6 Production system on Sybase and AIX 7.1 and using Power HA(earlier known as HACMP).
We are required to install database on let's say HOST A, and CI on HOST B. Both HOST A and HOST B are in a mutual fail over cluster,as prepared by hardware vendor.
Being new to High availability installations on SAP, we would initially want to know if for this type of installation we need to go for HA option in sapinst/SWPM or it should be the distributed system installation, on different hosts?
In HA installation we have an ERS (enqueue replication server) installation option which we do not want to install,so please let us know if in HA installation option, ERS is a mandatory installation.
Any suggestions for file systems(mount points,shares) in database host and CI would be highly appreciated.
Just to add that we have gone through installation guides and many other SCN and help.sap.com links, but could not find concrete information and got further confused.
Your help and guidance in this regard will be highly appreciated.