| What: /sys/fs/lustre/version |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Shows current running lustre version. |
| |
| What: /sys/fs/lustre/pinger |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Shows if the lustre module has pinger support. |
| "on" means yes and "off" means no. |
| |
| What: /sys/fs/lustre/health |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Shows whenever current system state believed to be "healthy", |
| "NOT HEALTHY", or "LBUG" whenever lustre has experienced |
| an internal assertion failure |
| |
| What: /sys/fs/lustre/jobid_name |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Currently running job "name" for this node to be transferred |
| to Lustre servers for purposes of QoS and statistics gathering. |
| Writing into this file will change the name, reading outputs |
| currently set value. |
| |
| What: /sys/fs/lustre/jobid_var |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Control file for lustre "jobstats" functionality, write new |
| value from the list below to change the mode: |
| disable - disable job name reporting to the servers (default) |
| procname_uid - form the job name as the current running |
| command name and pid with a dot in between |
| e.g. dd.1253 |
| nodelocal - use jobid_name value from above. |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/blocksize |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Biggest blocksize on object storage server for this filesystem. |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/kbytestotal |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Shows total number of kilobytes of space on this filesystem |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/kbytesfree |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Shows total number of free kilobytes of space on this filesystem |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/kbytesavail |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Shows total number of free kilobytes of space on this filesystem |
| actually available for use (taking into account per-client |
| grants and filesystem reservations). |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/filestotal |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Shows total number of inodes on the filesystem. |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/filesfree |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Shows estimated number of free inodes on the filesystem |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/client_type |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Shows whenever this filesystem considers this client to be |
| compute cluster-local or remote. Remote clients have |
| additional uid/gid convrting logic applied. |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/fstype |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Shows filesystem type of the filesystem |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/uuid |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Shows this filesystem superblock uuid |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/max_read_ahead_mb |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Sets maximum number of megabytes in system memory to be |
| given to read-ahead cache. |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/max_read_ahead_per_file_mb |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Sets maximum number of megabytes to read-ahead for a single file |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/max_read_ahead_whole_mb |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| For small reads, how many megabytes to actually request from |
| the server as initial read-ahead. |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/checksum_pages |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Enables or disables per-page checksum at llite layer, before |
| the pages are actually given to lower level for network transfer |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/stats_track_pid |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Limit Lustre vfs operations gathering to just a single pid. |
| 0 to track everything. |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/stats_track_ppid |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Limit Lustre vfs operations gathering to just a single ppid. |
| 0 to track everything. |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/stats_track_gid |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Limit Lustre vfs operations gathering to just a single gid. |
| 0 to track everything. |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/statahead_max |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Controls maximum number of statahead requests to send when |
| sequential readdir+stat pattern is detected. |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/statahead_agl |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Controls if AGL (async glimpse ahead - obtain object information |
| from OSTs in parallel with MDS during statahead) should be |
| enabled or disabled. |
| 0 to disable, 1 to enable. |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/lazystatfs |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Controls statfs(2) behaviour in the face of down servers. |
| If 0, always wait for all servers to come online, |
| if 1, ignote inactive servers. |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/max_easize |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Shows maximum number of bytes file striping data could be |
| in current configuration of storage. |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/default_easize |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Shows maximum observed file striping data seen by this |
| filesystem client instance. |
| |
| What: /sys/fs/lustre/llite/<fsname>-<uuid>/xattr_cache |
| Date: May 2015 |
| Contact: "Oleg Drokin" <oleg.drokin@intel.com> |
| Description: |
| Controls extended attributes client-side cache. |
| 1 to enable, 0 to disable. |