Size of Root file

ROOT
1

Hello,

I will produce 400 Root files, 20 Mo each.
For my analyse I must merge all my Root files, procuding a 8Go Root file.
I am wondering if there is a size limitation for a Root File (is there
a software limitation or only a hardware one) ?

by advance
thank you
cheers
olivier

2

There are no limitations in size for ROOT files. You can merge them with
hadd -f result.root file1.root file2.root …
hadd -f result.root fil*.root

Rene

3

Hi,

…but there are of course limitations due to the file system you use. See e.g. en.wikipedia.org/wiki/Comparison_of_file_systems

Cheers, Axel.