[Linux-cluster] any best practice for number of new GFS journal to add?

[Diamond Li]

hello everyone,

I feel a little bit confused about gfs_jadd. my understanding is we do
not have to add new journal after we extend file system size because
current size may be enough,  is it true ?

is there any best pratice for when should we add new journal, the
right number of new added journal, and journal size? for instance, if
my file system grows from 2G to 4G, what would be the right answer for
my questions, and it grows from 2T to 4T, etc.

best regards!