[Linux-cluster] GFS Journal Size

Andrew A. Neuschwander andrew at ntsg.umt.edu
Thu Nov 5 22:30:45 UTC 2009

Is there a good way to determine what size journals are needed on a gfs? Is there anyway to tell if 
a journal gets full? I have a vary large file system (20TB) shared by three hosts with 48GB RAM 
each. With the default journal size, applications would become unresponsive under heavy sequential 
writes. I increased the journal size to 1GB (from the default 128M) and this alleviated the problem.

Searching hasn't turned up any discussions on journal size.

Andrew A. Neuschwander, RHCE
Manager, Systems Engineer
Science Compute Services
College of Forestry and Conservation
The University of Montana
andrew at ntsg.umt.edu - 406.243.6310

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