I reached the inode limit on my XFS partition. There are plenty of questions about this. Some suggest the answer is to increase the maximum percentage of space allocated for inodes. Or, as the
xfs_growfs manpage puts it:
-m Specify a new value for the maximum percentage of space in the filesystem that can be allocated as inodes.
I tried this, but I'm not sure what I'm seeing. The default was 25% when I hit the limit. That gave me 409,600,129 inodes on a 781GB disk image.
I increased it to 100%, and it now will allow me 1,566,536,296 inodes.
$ df -i Filesystem Inodes IUsed IFree IUse% Mounted on ... /dev/loop3 1566536040 409600129 1156935911 27% /mnt/tiles
I expect to write over 2 billion entries (mostly symlinks), so even at 100% it is not sufficient. It was my understanding that XFS can support much greater quantities of files, so I think I'm missing something.
I tried remounting with
-o inode64, but there was no difference. (This option should be default anyway).
$ sudo xfs_growfs -m 100 . meta-data=/dev/loop3 isize=512 agcount=4, agsize=51200000 blks = sectsz=512 attr=2, projid32bit=1 = crc=1 finobt=1 spinodes=0 rmapbt=0 = reflink=1 data = bsize=4096 blocks=204800000, imaxpct=100 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=1 log =internal bsize=4096 blocks=100000, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 inode max pct unchanged, skipping
Is the size of my drive insufficient? Or is there some other configuration or limitation I'm unaware of? Why is 100% allocation for inodes only equal to 1.5GB?