Proposed Model for Disk Cross-Mounting

1. Any fsunXX and any fibmYY can do datarec FROM /data/farm05, /data/farm06 and recalledYY areas

2. Any fsunXX can produce datarec output TO own /datarec, served remotely by a sun diskserver.
   Two /datarec (/datarec11 and /datarec12) filesystems exist but only one is used by a given 
   fsunXX as reconstruction output.

3. Any fibmXX can produce datarec output TO own /data/farm/datarec, that is also named
   /datarec in the following by using a soft link

4. Any fsunXX and fibmYY can produce analysis output to /analysis1

5. Sun diskservers, fsun11 and fsun12, have only 2 CPUs that are used for disk serving. Therefore
   those nodes should not be used for datarec
6. Any user on fsun01 and fsun02 can access disk /kuser1 as Read-Write mode. On other machines /kuser1 can only be read.  


fsun11 (DISKs)
                  (before)          (now)
                 /kstor00          datarec
                 /kstor01          recalled
                 /kstor02          kuser1

   
fsun12  (DISKs)
                  (before)          (now)
                 /kstor03          datarec
                 /kstor04          recalled
                 /kstor05          analysis1



fibmXX  (XX=09-10)

        Filesystems    /data/farm  
                       /recalled

        Export NFS     /recalled  (RO TO all world RO = Read Only; RW TO fibm09-10 )       
                       /data/farm/datarec  (RO TO fibm09-10) 

Mount points

        fibmYY:/data/farm  /data/farmYY RO   (YY=04-10) 
        fibm09:/recalled   /recalled09 RW  only for fibm10
        fibm10:/recalled   /recalled10 RW  only for fibm09
        fsun11:/datarec    /datarec11  RO
        fsun12:/datarec    /datarec12  RO
        fsun11:/recalled   /recalled11 RW
        fsun12:/recalled   /recalled12 RW
        fsun11:/kuser1     /kuser1     RO 
        fsun12:/analysis1  /analysis1  RW

Soft links
        
        ln -s /data/farm/datarec   /datarec 
        ln -s /recalled            /recalled09   only for fibm09
        ln -s /recalled            /recalled10   only for fibm10
        ln -s /data/farmXX/datarec /datarecXX    (XX=04,07-10)
        ln -s /datarec             /datarec09   only for fibm09
        ln -s /datarec             /datarec10   only for fibm10




fibmXX  (XX=04,07--08)

Filesystems
  
        /data/farm  
            
Export NFS 
  
        /data/farm/datarec  TO  fibm09-10 RO

Mount points

        fibm05:/data/farm  /data/farm05 RO
        fibm06:/data/farm  /data/farm06 RO
        fibm09:/recalled   /recalled09 RO 
        fibm10:/recalled   /recalled10 RO
        fsun11:/recalled   /recalled11 RO
        fsun12:/recalled   /recalled12 RO
        fsun11:/kuser1     /kuser1     RO 
        fsun12:/analysis1  /analysis1  RW

Soft links

        ln -s /data/farm/datarec     /datarec



fsunXX (XX=01-10)

Mount points

        fibm05:/data/farm  /data/farm05 RO
        fibm06:/data/farm  /data/farm06 RO     
        fibm09:/recalled   /recalled09 RO
        fibm10:/recalled   /recalled10 RO
        fsun11:/datarec    /datarec  RW if XX=odd 
        fsun12:/datarec    /datarec  RW if XX=even 
        fsun11:/recalled   /recalled11 RO
        fsun12:/recalled   /recalled12 RO
        fsun11:/kuser1     /kuser1     RW/RO (RW for XX=01,02 RO otherwise)
        fsun12:/analysis1  /analysis1  RW

fsun11

Filesystems
        /datarec
        /recalled
        /kuser1

Export NFS   
        /datarec RW TO (fsunYY YY=odd)
        /recalled all world RO (RW fibm09 fibm10)
        /kuser1 all world RO (RW on fsun01, fsun02 and kloe01, kloe02) 

Mount points

        fibm05:/data/farm  /data/farm05 RO 
        fibm06:/data/farm  /data/farm06 RO   
        fibm09:/recalled   /recalled09 RO
        fibm10:/recalled   /recalled10 RO
        fsun12:/recalled   /recalled12 RO 
        fsun12:/analysis1  /analysis1  RW

Soft links
      
        ln -s /recalled              /recalled11 

fsun12

Filesystems
      
        /datarec
        /recalled
        /analysis1

Export NFS 
  
        /datarec RW TO (fsunYY YY=odd)
        /recalled all world RO (RW fibm09 fibm10)
        /analysis1 all world RW 

Mount points

        fibm05:/data/farm  /data/farm05 RO 
        fibm06:/data/farm  /data/farm06 RO   
        fibm09:/recalled   /recalled09 RO
        fibm10:/recalled   /recalled10 RO
        fsun11:/recalled   /recalled11 RO 
        fsun11:/kuser1     /kuser1  RO

Soft links
      
        ln -s /recalled              /recalled12