Details
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Improvement
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Resolution: Fixed
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Minor
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None
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10514
Description
It would be valuable to programmatically discover the number of OSTs that are available. An llapi_* function would be a suitable place for this call.
Use Case
When writing HDF5 files one typically configures the number of writers as a fraction of the number of OSTs for best performance.
Currently this information is only available by writing a file with stripe count set to -1 and then counting the number of stripes present. A programmatic interface to the OST count would simplify this task.
Attachments
Issue Links
Activity
Fix Version/s | New: Lustre 2.17.0 [ 16192 ] | |
Resolution | New: Fixed [ 1 ] | |
Status | Original: Open [ 1 ] | New: Resolved [ 5 ] |
Labels | Original: llnl | New: lfs llapi llnl usability |
Summary | Original: Add llapi_* function to return the striping info for a path. | New: Add llapi_* function to return the OST/MDT count for a path. |
Assignee | Original: Richard Henwood [ rhenwood ] | New: WC Triage [ wc-triage ] |
Fix Version/s | Original: Lustre 2.7.0 [ 10631 ] |
Fix Version/s | New: Lustre 2.7.0 [ 10631 ] |
Labels | New: llnl |