Hi all, In our research group at MIT, we use AFS for different purposes, such as: students' home directories, thesis repositories, etc. So far it is working without major problems. Our current setup is:
* AFS version 1.4.11 * Both server and clients are running Fedora 11 x86_64, which basically means kernels 2.6.29.x We installed OpenAFS using the 64bit rpms provided from http://openafs.org/release/1.4.11/index-fedora-11.html , the installation was very easy with no major incidents. Lately, we are exploring the option of using AFS to manage our research data, which consist of large datasets of patient information from different hospital archives. I read that since version 1.4.8 , AFS supports partitions larger that 2TB, so I think that solves part of our problems. The issue comes when I want to use volumes larger that 2TB, there are many reasons that prevent me to split a given volume into smaller volumes of ~2TB max. As an example: let's assume the name of my cell is "cell_name" and one of the volumes that I want to create will be mounted under "hospital1/waveformdb/icu". The following odd scenarios occur: Setting the volume quota to 1TB with a command similar to: $ fs setquota -path /afs/cell_name/hospital1/waveformdb/icu -max 1073741824 gives me the correct results, I can check that with: $ fs examine /afs/cell_name/hospital1/waveformdb/icu *** Current disk quota is 1073741824 *** The problem starts when I set the quota limit to 2TB, it gives me an incorrect "negative" quota size: Current disk quota is -2147483648 When I set the quota limit to 3TB, it gives me: Current disk quota is -1073741824 And when I set the quota limit to 4TB, it gives me: Current disk quota is unlimited If I want to set the max quota limit to 6TB, it gives me : Current disk quota is -2147483648 What is the limit for a volume?. I read online that one possible source of the limitation comes from some data structure that are using 32bits "ints" and changing them would mean changing the AFS communication protocol?, if this is the case, is there a plan to increase it? Best, Mauro
