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OneFS 9.7 introduces support for parallel restriping jobs, and hence the removal of the restriping exclusion set and its associated restraints. Instead, up to three restriping jobs can run simultaneously, if desired. This can allow services like SmartPools tiering to continue unabated, even in degraded cluster situations, such as during a FlexProtect drive rebuild.
The following example shows the FlexProtectLin, MediaScan, and SmartPools restriping jobs running concurrently:
# isi job jobs list
ID Type State Impact Policy Pri Phase Running Time
---------------------------------------------------------------------
2273 MediaScan Running Low LOW 8 1/8 7h 57m
2275 SmartPools Running Low LOW 6 1/2 9m 44s
2305 FlexProtectLin Running Medium MEDIUM 1 1/4 10s
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Total: 3
Currently only available via the OneFS CLI and platform API, the ‘isi job settings’ CLI command set can be used to control the behavior of parallel restriping, which can be one of:
Setting | Description |
Off | Default: Legacy restripe exclusion set behavior, with only one restripe job permitted. |
Partial | FlexProtect/FlexProtectLin runs alone, but all other restripers can be run together. |
All | No restripe job exclusions. |
For example, the following CLI command can be used to configure ‘Partial’ parallel restring support:
# isi job settings modify --parallel_restriper_mode=partial
Similarly, the Job Engine can be easily reverted to its default restripe exclusion set behavior, with only one restripe job permitted, as follows:
# isi job settings modify --parallel_restriper_mode=off
Note: A user account with the PRIV_JOB_ENGINE RBAC role is required to configure the parallel restripe settings.