On Feb 13, 2007 10:36 -0700, Daniel Leaberry wrote: > Normal df -i gives me ~940 million inodes (I used --mkfsoptions='-i > 1024' /dev/sdb) > > [EMAIL PROTECTED] ~]# df -i > Filesystem Inodes IUsed IFree IUse% Mounted on > /dev/sdb 943652864 35 943652829 1% /var/mnt/lustre1-mds > > > lfs df -i gives me ~117 million inodes (which corresponds to the inode > count with the normal mkfsoptions of -i 4096.
That is because "df" and "df -i" are necessary amalgamations of the MDS and OST block and inode counts. The actual number of files you can create is at least 90M, but could be as high as 117M depending on a number of factors. The same is true with free blocks. We thought it best to report the minimum amount of free inodes instead of the maximum. > [EMAIL PROTECTED] lustre01.iarchives.com]# lfs df -i > UUID Inodes IUsed IFree IUse% Mounted on > lustre1-MDT0000_UUID 117768997 36 117768961 0% > /mnt/lustre01.iarchives.com[MDT:0] > lustre1-OST0000_UUID 244195328 121 244195207 0% > /mnt/lustre01.iarchives.com[OST:0] > lustre1-OST0001_UUID 244195328 57 244195271 0% > /mnt/lustre01.iarchives.com[OST:1] > lustre1-OST0002_UUID 244195328 57 244195271 0% > /mnt/lustre01.iarchives.com[OST:2] > lustre1-OST0003_UUID 244195328 57 244195271 0% > /mnt/lustre01.iarchives.com[OST:3] > lustre1-OST0004_UUID 244195328 57 244195271 0% > /mnt/lustre01.iarchives.com[OST:4] > lustre1-OST0005_UUID 244195328 57 244195271 0% > /mnt/lustre01.iarchives.com[OST:5] > > filesystem summary: 117768997 36 117768961 0% > /mnt/lustre01.iarchives.com That's why we have "lfs df" so that you can see the per-device info instead of the munged "df" output. Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc. _______________________________________________ Lustre-discuss mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
