lfs-mirror-copy(1) — Chainguard OS Manuals

LFS-MIRROR-COPY(1)

Lustre User Utilities

LFS-MIRROR-COPY(1)

NAME

lfs-mirror-copy - copy a mirror's content to other mirror(s) of a mirrored file

SYNOPSIS

lfs mirror copy --read-mirror|-i SRC_ID0 --write-mirror|-o TGT_ID1[,TGT_ID2,...] MIRRORED_FILE

DESCRIPTION

This command copies a mirror's content to other mirror(s) of a mirrored file, the file is specified by the path name MIRRORED_FILE, the mirrors are specified by their mirror ID.

OPTIONS

-i, --read-mirrorSRC_ID0: This option indicates the content of which mirror specified by SRC_ID0 needs to be read. The SRC_ID0 is the numerical unique identifier for a mirror.
-o, --write-mirrorTGT_ID1[,TGT_ID2,...]: This option indicates the content of which mirror(s) specified by mirror IDs needs to be written. The mirror IDs are separated with comma. If the mirror id -1 is used here, it means that all mirrors other than the read mirror are to be written.

NOTES

Be ware that the written mirror(s) will be marked as non-stale mirror(s), be careful that after using this command, you could get a file with non-stale mirrors while containing different contents.

EXAMPLES

Copy the content of mirror with mirror ID 1 to the mirrors with mirror ID 2 and mirror ID 3 in /mnt/lustre/file1:

# lfs mirror copy -i1 -o2,3 /mnt/lustre/file1

Copy the content of mirror with mirror ID 1 to all other mirrors in /mnt/lustre/file1:

# lfs mirror copy -i1 -o-1 /mnt/lustre/file1

AVAILABILITY

The lfs mirror copy command is part of the lustre(7) filesystem package since release 2.13.0