Lustre 1.6 Operations Manual

25.3 lfs setstripe – Setting File Layouts
Use the lfs setstripe command to create new files with a specific file layout
(stripe pattern) configuration.
lfs setstripe [--size|-s stripe-size] [--count|-c stripe-cnt]
[--index|-i start-ost]
stripe-size
If you pass a stripe-size of 0, the filesystem’s default stripe size is used. Otherwise,
the stripe-size must be a multiple of 64 KB.
stripe-start
If you pass a starting-ost of -1, a random first OST is chosen. Otherwise, the file
starts on the specified OST index, starting at zero (0).
stripe-count
If you pass a stripe-count of 0, the filesystem’s default number of OSTs is used. A
stripe-count of -1 means that all available OSTs should be used.
Note – If you pass a starting-ost of 0 and a stripe-count of 1, all files are written to
OST #0, until space is exhausted. This is probably not what you meant to do. If you
only want to adjust the stripe-count and keep the other parameters at their default
settings, do not specify any of the other parameters:
lfs setstripe -c
25-6 Lustre 1.6 Operations Manual • September 2008