[lustre-discuss] inodes distribution

Ihsan Ur Rahman ihsanurr67 at gmail.com
Mon Nov 10 03:26:47 PST 2025


Hello lustre folks,

In the Lustre file system who is responsible for giving inodes. As per my
understanding, it is MDS/MGS who is giving inodes.
Below is the output of the inodes distribution in our lustre file system.
Is this correct? Because the ost is also giving the inodes and most of the
used more than 40%.

 lfs df -ih /mnt/lust-das
UUID                      Inodes       IUsed       IFree IUse% Mounted on
lust-das-MDT0000_UUID      745.2M      156.7M      588.5M  22%
/mnt/lust-das[MDT:0]
lust-das-MDT0001_UUID      745.2M      127.7M      617.6M  18%
/mnt/lust-das[MDT:1]
lust-das-OST0000_UUID       30.4M       12.5M       17.9M  42%
/mnt/lust-das[OST:0]
lust-das-OST0001_UUID       29.1M       12.5M       16.6M  43%
/mnt/lust-das[OST:1]
lust-das-OST0002_UUID       30.2M       12.5M       17.7M  42%
/mnt/lust-das[OST:2]
lust-das-OST0003_UUID       30.7M       12.5M       18.2M  41%
/mnt/lust-das[OST:3]
lust-das-OST0004_UUID       29.7M       12.5M       17.3M  42%
/mnt/lust-das[OST:4]
lust-das-OST0005_UUID       29.8M       12.5M       17.3M  42%
/mnt/lust-das[OST:5]
lust-das-OST0006_UUID       29.9M       12.5M       17.4M  42%
/mnt/lust-das[OST:6]
lust-das-OST0007_UUID       29.8M       12.5M       17.3M  42%
/mnt/lust-das[OST:7]
lust-das-OST0008_UUID       28.8M       12.5M       16.4M  44%
/mnt/lust-das[OST:8]
lust-das-OST0009_UUID       30.0M       12.5M       17.5M  42%
/mnt/lust-das[OST:9]

filesystem_summary:       458.1M      284.4M      173.7M  63% /mnt/lust-das


Regards,

Ihsan
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