More info on V4R5 to V5R2..Hardware

OK, I have gone thru the IBM Release Planning Info (phew!!!) and come up
with the following for my 720.
 
I understand that I WILL have to upgrade/change the Optical as it is
definitely not supported which from what I understand means it will
fail.
 
My question to the list is what is everyones experience with the "May
experience performance limitations" items.  Surely someone has some of
them still running on V4R5 or did everyone make the "suggested" IBM
replacements?
 
Again, thanks to the list and all its great emembers for the help so
far.
 
2468     M001-Sys Ctl Panel                             
2609     Comm Adaptor    Supported/May have perf limit   V5R1 and R2

2609     v.24 port       Supported/May have perf limit   V5R1 and R2

2609     v.24 port       Supported/May have perf limit   V5R1 and R2

2612     Comm Adaptor    Supported/May have perf limit   V5R1 and R2

2612     v.24 port enhanced      Supported/May have perf limit   V5R1
and R2          
2613     Comm Adaptor    Supported/May have perf limit   V5R1 and R2

2613     v.35 port       Supported/May have perf limit   V5R1 and R2

2621     Storage Controller      Supported/May have perf limit   V5R1
and R2   Optical Attached to it 
2621     Storage Controller      Supported/May have perf limit   V5R1
and R2   Reel Tape Attached to it       
2623     Comm Processor                         
2720     Comm Adaptor                           
2720     v.24 port                              
2729     Storage Controller                             
2741     Storage Controller                             
2809     Combined Function IOP                          
2838     Lan Adaptor                            
2838     Ethernet Port                          
3002     M000-128MB Mem                         
3002     M000-128MB Mem                         
3004     M000-256MB Mem                         
3004     M000-256MB Mem                         
3580     Ultrium LTO Tape                               
3995     C40-Optical     Not supported   V5R1 not mentioned in R2

6050     WS Proc         Supported/May have perf limit   V5R1 and R2

6050     WS Ctl  Supported/May have perf limit   V5R1 and R2     Console
only attached   
6390     8mm Tape                               
6512     Storage Controller      Supported/May have perf limit   V5R1
and R2   Disk   
6607     M074-Disk Storage Ctl                          
9164     Comb Func IOP                          
9164     Combined Function IOP                          
9164     M001-Svc Proc Card                             
9348     M002-Tape Controller                           
9348     Reel Tape                              
9406     Main Card                              
206A     M000-Sys Proc Card                             
266C     WS Ctl                         
 
Mark Allen
IS Manager
Wilkes Telephone & Electric
11 W. Court Street
Washington, GA 30673
Phone: (706) 678-9565
Fax: (706) 678-1000