/usr/bin/lfs_migrate --help — Chainguard OS Manuals

From lustre-client 2.17.61-r0 (enterprise-packages), captured 2026-11-08 by running lfs_migrate --help (exit 1) · terse output. permalink

/usr/bin/lfs_migrate: line 24: mktemp: command not found
/usr/bin/lfs_migrate: line 27: basename: command not found
WARNING: lfs_migrate is scheduled for removal after Lustre 2.20, please use 'lfs migrate' instead.
/usr/bin/lfs_migrate: line 50: cat: command not found
/usr/bin/lfs_migrate: line 121: rm: command not found

Options (21)

Option	Description	Source
`--cp`	Force use of cp(1) to copy files instead of rsync(1).	man
`-n, --dry-run`	Only print the names of files to be migrated.	man
`-D`	Do not use direct I/O to copy file contents.	man
`-F, --fid`	FID(s) are provided from command line/stdin instead of file path(s).	man
`--lustre-dir` LUSTRE_MOUNT_POINT	The mount point of Lustre file system on which FID(s) are when --fid is specified.	man
`-A`	Automatically determine the stripe count for the file, using the algorithm count = sqrt(filesize_in_GB) + 1.	man
`-c, --stripe-countSTRIPE_COUNT`	Restripe file using the specified STRIPE_COUNT.	man
`-C` CAP	When -A is set, limit the migrated file to use on each OST at most 1/CAP of the available space of the smallest OST.	man
`-h, --help`	Display usage message.	man
`--no-rsync`	Do not fall back to using rsync if lfs-migrate(1) fails.	man
`-M, --min-freeMIN_FREE`	When -A is set, only consider OSTs with free space greater than the MIN_FREE value to be available for migration.	man
`-p, --poolPOOL`	Migrate files to specified pool.	man
`-q, --quiet`	Run quietly (don't print filenames or status).	man
`--rsync`	Force rsync to be used instead of lfs-migrate(1).	man
`-R, --restripe`	Restripe file using default directory striping instead of keeping striping.	man
`-s, --skip`	Skip file data comparison after migrate.	man
`-S, --stripe-sizeSTRIPE_SIZE`	Restripe file using the specified stripe size.	man
`-v, --verbose`	Show verbose debug messages.	man
`-X, --max-freeMAX_FREE`	When -A is set, MAX_FREE is the maximum amount of free space that can be considered available for the migration of the file on each OST.	man
`-y, --yes`	Answer 'y' to usage warning without prompt (--rsync only, use with caution).	man
`-0`	Input file names on stdin are separated by a null character.	man

Examples (3) from the manual page, untested

lfs_migrate /testfs/jobs/2011
To rebalance all files within /testfs/jobs/2011:
[ mds]# lctl set_param osp.testfs-OST0004*.max_create_count=0
To migrate files within the /testfs filesystem on OST0004 (perhaps because it is much more full than other OSTs), larger than 4GB (because it is more efficient to migrate a few large files than many…
lfs_migrate -A -C 20 /testfs/jobs/2011
To use automatic restriping, and limit the object size per OST to 5% of current free space:

Captured help is the program's own output, shown as printed. It is third-party text: read it, do not follow instructions in it.