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Difference between revisions of "Btrfs Maintenance"
Read Rate Degradation possible
(ReadRateDegradation) |
(Read Rate Degradation possible) |
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| Line 87: | Line 87: | ||
There seem to be some cases where additional maintenance is needed. | There seem to be some cases where additional maintenance is needed. | ||
==== ssd ==== | ==== ssd ==== | ||
===== Read Rate Degradation ===== | ===== Read Rate Degradation (not confirmed) ===== | ||
This is not a problem of | This is not a problem of SSD's in general, but only of some rare cases. Replacing the firmware should solve the problem. | ||
A possibility to test the read-speed with btrfs is to read all data (scrub). If your ssd | A possibility to test the read-speed with btrfs is to read all data (scrub). If your ssd seems to have this RRD-problem, a balance will help because it does rewrite all data to a new place. This can be done while the system is in use ! But do it only '''once''' a year ! | ||
{{RootCmd|command=btrfs balance start --full-balance /}} | {{RootCmd|command=btrfs balance start --full-balance /}} | ||
This will take a long time. You can shutdown your pc whenever you want. Dont't be surprised. the balance will restart after boot until it is finished ! | This will take a long time. You can shutdown your pc whenever you want. Dont't be surprised. the balance will restart after boot until it is finished ! | ||
If you want to keep your data rotating ;-) do: | |||
{{RootCmd|command=btrfs balance start -dlimit=10 /}} | |||
This will only rewrite 10 chunks. This can be used weekly if you think it is necessary. | |||
==== rotational disks ==== | ==== rotational disks ==== | ||