first of all we can use the 110 counter MC8c to counter RACH success numbers for a cell. Alcatel don’t privide any counters for RACH request now. other producer either.
secondly it is Not applicable except you have TAC tools,it’s only for high level Alcatel Support.I am sorry I do not have it or I can send it to you.
for you third question , it is too complex for me to understand, so I try my best to explain.
in fact the omc system is a gateway that collect the stastical report from the BSC I/O system. so the report there are all fixed. and for the disk reason, you can not keep them for a long time. so if you have some special purpose you will have to download the file and put them in the database that developed by your self, the you can do the analysis as you like.
here I can show you a example, in my office, we also have the same problem like you, so we use the delphi to download all the file from the omc database, and then we put it into a sql server in a Pc, finally we use delphi to do some filter and logic to find out the necessary report like week peak and day peak and month peak as we like.
so if you have some computer science major colleague, you can ask them for help.
I will always happy to help, pleae do not hesitate to ask.