I tried to add alias names to CAP.
Get-ClusterResource "MyClusterName" | Set-ClusterParameter Aliases "15charactername,17characternameXX"
It seems to accept names longer than 15 characters too, which is great. We've had Win2003 clusters over 10 years and we're using FQDN names (CNAME or A record) when we're accessing the clustered shares. I'd like to upgrade to Win2012 cluster, because it supports aliasnames so we could keep the old naming convention which is tied to hundreds of applications.
1. \\15charactername\fileshare
2. \\15charactername.domain.local\fileshare
3. \\17characternameXX\fileshare
4. \\17characternameXX.domain.local\fileshare
First three work OK, but with the fourth I got "Network name not found"
I tried to access admin shares on the cluster with the above names and all of these work fine.
1. \\15charactername\e$
2. \\15charactername.domain.local\e$
3. \\17characternameXX\e$
4. \\17characternameXX.domain.local\e$
Sounds like a bug to me. Using FQDN's has been the recommended way as long as I remember.