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--- home_server:home_server_setup:other_services:snapraid [2023-05-28 Sun wk21 09:13] – created baumkp
+++ home_server:home_server_setup:other_services:snapraid [2024-02-16 Fri wk07 22:11] (current) – [snapraid] baumkp
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+{{tag>snapraid linux}}
 ======snapraid======
+I have been using snapraid the past 8 years or so for my main first past redundancy.  I have a second home server used as a backup server that weekly backs up using [[home_server:home_server_setup:other_services:back-up_server#restic]].
+The main snapraid commands I use are:
+''sudo snapraid sync'' to sync the files that have changes since last sync.  I usually do this weekly, manually.
+''sudo snapraid scrub'' to check the parity of the array, usually the oldest files first.  I usually do this weekly, manually.
+''sudo snapraid status'' to check the status of the array.  I usually do this weekly, manually.
+''sudo snapraid touch'' to add sub-second time granularity to the files that improves snapraid usage.  I usually do this weekly, if reported as requried by status, manually.
+''sudo snapraid smart'' to check the smart status of the array drives (does not report on nvme drives).  I usually do this weekly, manually. Really for information only.
-<- home_server:home_server_setup:disk_check|Prev ^ home_server:home_server_setup:other_services|Start page ^ home_server:home_server_setup:other_services:timedate|Next ->
+Snapraid allows files and directories that have been deleted since the last sync to be recovered.
+  *''snapraid diff --test-fmt path''
+  *''snapraid diff --test-fmt disk'' This will let you know the data disk from snapraids array perspective
+Snapraid does not expect you to provide the absolute file system path when fixing files.
+  *''snapraid fix -m'' This will recreate any deleted file in the entire array
+  *''snapraid fix -m -d d1'' This will recreate any deleted file on data disk d1
+  *''snapraid fix -m -f Example/'' This will recreate the contents of any folder named Example anywhere in the array
+  *''snapraid check -m -f Example/ -v'' If you are unsure what will happen you can replace fix with check above and add -v with this. Snapraid will then tell you that there is a problem with each of the files matching the filter or that they are ok.
+The main snapraid configuration file ''/etc/snapraid.conf''
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