Storage performance: BeeGFS filesystem (Saga)
Striping in BeeGFS (
/cluster) can be configured on a per-directory and per-file basis.
How to find out the current striping
To check current stripe size, use:
$ beegfs-ctl --getentryinfo [file_system, dir, file]
For example to check your home folder stripe size on Saga, you can do:
$ beegfs-ctl --getentryinfo /cluster/home/$HOME
For example to check file tripe size:
$ beegfs-ctl --getentryinfo /cluster/tmp/test EntryID: 5-5DC49168-19C Metadata node: mds4-p1-m2 [ID: 412] Stripe pattern details: + Type: RAID0 + Chunksize: 512K + Number of storage targets: desired: 4; actual: 4 + Storage targets: + 4201 @ oss-4-4-stor2 [ID: 42] + 4202 @ oss-4-4-stor2 [ID: 42] + 4203 @ oss-4-4-stor2 [ID: 42] + 1101 @ oss-4-1-stor1 [ID: 11]
This shows that this particular file is striped over 4 object storage targets.