Size limit of a ROOT file

[Crisps]

Dear experts,

I want to create (not merge by hadd) a root file which may be larger than 3TB, I wonder if there is a size limit of ROOT file? In my TTree every entry will less than 1GB.

[dastudillo]

https://root-forum.cern.ch/search?q=root%20file%20size%20limit

Root file size limitation

Dear ROOT users, Is there a file size limitation for the root file? I am using ROOT 6.18/04 with gjm to merge many root output files from clusters. The total file size is around 31 G while the gjm always switched the merging file from the first one to the new one when the first merged file hit 17 G. Is there any other way to re-merge the two 17 G files together? Any reply will be highly appreciated! _ROOT Version: 6.18/04 _Platform:_Centos 7 Best, Xinjie

https://root.cern/doc/master/classTTree.html#a3ab4006402ddbc3950e1ddab5e3aadd6

[Crisps]

Thank you!