[Linux-cluster] GFS 2Tb limit

Ken Preslan kpreslan at redhat.com
Wed Sep 1 18:42:19 UTC 2004

On Wed, Sep 01, 2004 at 12:31:41PM +0100, Stephen Willey wrote:
> There was a post a while back asking about 2Tb limits and the consensus 
> was that with 2.6 you should be able to exceed the 2Tb limit with GFS.  
> I've been trying several ways to get GFS working including using 
> software raidtabs and LVM (seperately :) ) and everytime I try to use 
> mkfs.gfs on a block device larger than 2Tb I get the following:
> Command: mkfs.gfs -p lock_dlm -t cluster1:gfs1 -j 8 /dev/md0
> Result: mkfs.gfs: can't determine size of /dev/md0: File too large

I just found and removed a safety check that made sure gfs_mkfs didn't
try to make a filesystem bigger than 2TB (which was useful on 2.4).
The check is after the place generating your error, though.

WLI's suggestion of getting a strace of the process is a good one.

Ken Preslan <kpreslan at redhat.com>

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