[daip] NFS and SYSETUP

[Eric Greisen]

Grant Denn writes:
 > Eric,  That was indeed a problem. I added a space to the HOSTS.LIST
 > file.
 > SYSETUP ran, apparently. It didn't say anything after
 > 
 > >
 > >  >
 > >  > SYSETUP: Operating on       1 hosts: SAMMY
 > >  >
 > 
 > So NFS is working but I had to trick AIPS into seeing extra disks.
 > 
 > Now I have, for example, on JONO in the $AIPS_ROOT/DATA directory
 > symbolic links to data directories
 > JONO_1 -> /u1/jono_1
 > ...
 > 
 > JONO_7 -> /sammy/u1/sammy_1 which is an NFS link.
 > JONO_8 -> /sammy/u1/sammy_2 " ".
 > ...
 > 
 > and likewise on sammy:
 > SAMMY_1 -> /u1/sammy_1
 > ....
 > SAMMY_7 -> /jono/u1/jono_1
 > ....
 > 
 > I don't believe this is what the creator had in mind but it seems to
 > work.
 > Grant
 > 

It is not at all clear to me what you have done based on what it says
above.  Here we have a set of cross mounted links called

/DATA/hosti_n

where we have about 100 values of hosti and 1-10 values of n depending
on host.  The actual data areas for hosti are all on hosti - NFS is
abominably slow.

I cannot imagine that you want JONO disks to actually be on SAMMY.
The DADEVS.LIST should never require a disk and shgould use the host
name to select the desired host.  Then, if you want both, you say

   aips da=sammy (while running on JONO) or
   aips da=jono  (while running on sammy)

Eric