- <para condition='l23'>LFSCK is an administrative tool introduced in Lustre
- software release 2.3 for checking and repair of the attributes specific to a
- mounted Lustre file system. It is similar in concept to an offline fsck repair
- tool for a local filesystem, but LFSCK is implemented to run as part of the
- Lustre file system while the file system is mounted and in use. This allows
- consistency of checking and repair by the Lustre software without unnecessary
- downtime, and can be run on the largest Lustre file systems with negligible
- disruption to normal operations.</para>
- <para condition='l23'>Since Lustre software release 2.3, LFSCK can verify
- and repair the Object Index (OI) table that is used internally to map
- Lustre File Identifiers (FIDs) to MDT internal ldiskfs inode numbers, in
- an internal table called the OI Table. An OI Scrub traverses the OI table
- and makes corrections where necessary. An OI Scrub is required after
- restoring from a file-level MDT backup (
- <xref linkend="dbdoclet.backup_device" />), or in case the OI Table is
- otherwise corrupted. Later phases of LFSCK will add further checks to the
- Lustre distributed file system state.</para>
+ <para>LFSCK is an administrative tool for checking and repair of the
+ attributes specific to a mounted Lustre file system. It is similar
+ in concept to an offline fsck repair tool for a local filesystem,
+ but LFSCK is implemented to run as part of the Lustre file system
+ while the file system is mounted and in use. This allows consistency
+ checking and repair of Lustre-specific metadata without unnecessary
+ downtime, and can be run on the largest Lustre file systems with
+ minimal impact to normal operations.</para>
+ <para>LFSCK can verify
+ and repair the Object Index (OI) table that is used internally to map
+ Lustre File Identifiers (FIDs) to MDT internal ldiskfs inode numbers, in
+ an internal table called the OI Table. An OI Scrub traverses the OI table
+ and makes corrections where necessary. An OI Scrub is required after
+ restoring from a file-level MDT backup (
+ <xref linkend="dbdoclet.backup_device" />), or in case the OI Table is
+ otherwise corrupted. Later phases of LFSCK will add further checks to the
+ Lustre distributed file system state.</para>