Re: S36 to AS400 migration

[rob@xxxxxxxxx]

Jerry,

That won't work.  The OS alone on an i5 will take up more space than the 
biggest S/36 made.  Pick an i5 that you have access to and run
RTVDSKINF (run in batch and give it hours.  I submit both commands to a 
single string job queue)
followed by
PRTDSKINF *SYS

Simply add up the following alone:
QSYS
Other IBM libraries
Licensed Internal Code
System internal objects

Now, add in some of the User directories (because IBM stores some OS in 
the IFS which is what User Directories is).  My example below would not be 
applicable to a machine coming from S/36 because I put a LOT in IFS.  Like 
11 Domino partitions, 9 ixs cards and one big freaking Linux lpar.  We got 
more free space than "User Libraries" which is the space where all your 
application data and programs in a traditional environment is.

Your load in "Other IBM libraries" may vary due to what LPP's you have 
loaded.

                                                 % of         Size in 
 Description                                     Disk     1,000,000 bytes
 User libraries                                 14.22          702382.66 
 User directories                               68.76         3396539.88 
 Folders and documents                            .01             715.65 
 QSYS                                             .13            6280.90 
 Other IBM libraries                              .52           25727.21 
 Licensed Internal Code                           .09            4449.78 
 Temporary space                                 1.08           53170.17 
 Unused space                                   15.04          742750.50 
 System internal objects                          .12            5933.03 
 Objects not in a library                         .00              11.55 
 TOTAL                                          99.97         4937961.33 

Depending on the pain tolerance I'd throw in no less than 4 drives and the 
necessary hardware to start RAID5.  Don't even think of starting RAID5 on 
less than 4 drives.  It can be done with 3 but the performance will be 
abysmal.  Although, it's been pointed out that "abysmal" is relative. 
Compared to a new i5 with bigger raid sets it is abysmal.  However 
compared to a 5360 it might be smoking fast.

Rob Berendt