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added zpool list -v output

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Markus Ressel 2021-01-06 21:01:57 +01:00 committed by GitHub
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@ -31,9 +31,31 @@ Since file attributes are fully retained, it is not possible to verify if an ind
To check the current balance of a pool use:
```
zpool list -v
> zpool list -v
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
bpool 1.88G 113M 1.76G - - 2% 5% 1.00x ONLINE -
mirror 1.88G 113M 1.76G - - 2% 5.88% - ONLINE
ata-Samsung_SSD_860_EVO_500GB_J0NBL-part2 - - - - - - - - ONLINE
ata-Samsung_SSD_860_EVO_500GB_S4XB-part2 - - - - - - - - ONLINE
rpool 460G 3.66G 456G - - 0% 0% 1.00x ONLINE -
mirror 460G 3.66G 456G - - 0% 0.79% - ONLINE
ata-Samsung_SSD_860_EVO_500GB_S4BB-part3 - - - - - - - - ONLINE
ata-Samsung_SSD_860_EVO_500GB_S4XB-part3 - - - - - - - - ONLINE
vol1 9.06T 3.77T 5.29T - - 13% 41% 1.00x ONLINE -
mirror 3.62T 1.93T 1.70T - - 25% 53.1% - ONLINE
ata-WDC_WD40EFRX-68N32N0_WD-WCC - - - - - - - - ONLINE
ata-ST4000VN008-2DR166_ZM4-part2 - - - - - - - - ONLINE
mirror 3.62T 1.84T 1.78T - - 8% 50.9% - ONLINE
ata-ST4000VN008-2DR166_ZM4-part2 - - - - - - - - ONLINE
ata-WDC_WD40EFRX-68N32N0_WD-WCC-part2 - - - - - - - - ONLINE
mirror 1.81T 484K 1.81T - - 0% 0.00% - ONLINE
ata-WDC_WD20EARX-00PASB0_WD-WMA-part2 - - - - - - - - ONLINE
ata-ST2000DM001-1CH164_Z1E-part2 - - - - - - - - ONLINE
```
and have a look at difference of the `CAP` value (`SIZE`/`FREE` vs `ALLOC` ratio) between vdevs.
### No Deduplication
Due to the working principle of this script, which essentially creates a duplicate file on purpose, deduplication will most definitely prevent it from working as intended. If you use deduplication you probably have to resort to a more expensive rebalancing method that involves additional drives.