What would be the procedure for upgrading XFS filesystems from 32-bit to 64-bit? What damage or issues would arise from accessing XFS fs that was formatted on a 32-bit OS with a 64-bit OS?
To recap, I had some issues with NFS to a fileserver that was recently upgraded. Part of the upgrade was to move to a 64-bit OS. The problems with apps hanging on file access over NFS also occurred on the local machine. At this point I noticed the partition was XFS. Somewhere I recall that XFS is not portable between 32-bit and 64-bit systems. Is this correct?
A run of xfs_check showed nothing wrong and xfs_repair ran successfully.
Update:
Found the following on the Ubuntu wiki:
"The journal is currently not 32-bit / 64-bit portable. Before mounting a xfs prevously used on 32-bit linux in 64-bit linux (or different arch) the journal has to be emptied using xfs_repair." — https://wiki.ubuntu.com/XFS
There is no date on this page.
Leaves me wondering why the system behaves strangely, though.
Best Answer
I'm assuming you're referring to XFS running on Linux... You shouldn't have any conversion issues going from a 32-bit system to a 64-bit system on XFS. The filesystem won't need to be modified.