[HowTo] SnapRAID in OMV

I've run into an output I don't understand using the snapraid script often linked to here: RE: [HowTo] SnapRAID in OMV

I didn't change anything other than user variables such as my email, name of my containers, and action thresholds. But I get this output at the beginning when it runs and I couldn't figure out what a "filename argument" would be in this case.

root@openmediavault:/usr/bin# snapraidscript.sh
/usr/sbin/snapraidscript.sh: line 2: .: filename argument required
.: usage: . filename [arguments]
Setting up service array
SnapRAID Script Job started

Thanks for any help

Quote from ryecoaaron

Do you have the testing repo enabled and installed the version of the snapraid plugin that supports multiple arrays? This will break the snapraid script.

I have openmediavault-snapraid 6.1 installed through the Open Media Vault plugin page. I didn't see anything in setting abut enabling testing repo or the multiple array version. I'm calling the script as "snapraidscript.sh" and put it in /usr/sbin upon advice from another threat if thats an issue.

Quote from ryecoaaron

That isn't a plugin issue then. Don't know about that script.

I was trying to get that script working since it would disable things like Sonarr and Radarr downloading while sync and scrub is running. I can replicate a lot of the scheduling and "don't run if more than x many files are deleted" through OMV interface of Services/Snapraid/Settings but I can't find a definitive answer if downloading during a sync is bad.

Quote from savathuntechquestion

.......but I can't find a definitive answer if downloading during a sync is bad.

If you add files to an array member during a sync you are likely to get warnings from SnapRAID about this. I can't speak authoritatively, but it is my impression that those newly files are probably not protected by SnapRAID. The suggestion provided with the warning is to run the sync again, which seems to imply that my impression is correct.

I avoid this problem by having my torrent client download to a directory that is excluded by a rule in SnapRAID. The downloaded files are moved to where they belong later when SnapRAID is not syncing.

Hi, guys!

Question from newbie with Snapraid: Is really necessary to use some scripts such as https://github.com/auanasgheps/snapraid-aio-script (which doesn`t work and I didn`t figure out why) or it is enough to use 5 commands in any your custom sh file:

snapraid smart;  
snapraid status;

snapraid touch;  
snapraid sync; 

snapraid smart;  
snapraid status;

snapraid scrub; 

Or just spend time and write my own script which will be checking if there is error - run scrub/fix etc?

If any script you are using doesn't work, find out why or try another - there are plenty of them out there.

Quote from gderf

If any script you are using doesn't work, find out why or try another - there are plenty of them out there.

What is wrong with using just 5 commands?

The raw commands you list offer no flexibility as they run the defaults for the commands. So you should consider reading the SnapRaid manual to see if any of the options make sense to you and adjust accordingly. Also you don't get an emailed report that shows what was done or reports any problems encountered.

Quote from gderf

The raw commands you list offer no flexibility as they run the defaults for the commands. So you should consider reading the SnapRaid manual to see if any of the options make sense to you and adjust accordingly. Also you don't get an emailed report that shows what was done or reports any problems encountered.

For notification I can use Schedule job and all output will be in letter and in telegram. Honestly, you can`t explain what is wrong with simple commands, but you continue to using it, nice!

d13m I'm the author of the script, tell me what's not working.

Quote from auanasgheps

d13m I'm the author of the script, tell me what's not working.

Hi, thanks!

in script-config.sh I just changed:

EMAIL_ADDRESS="myAddress"
FROM_EMAIL_ADDRESS="address_I_use_as_notification_in_OMV6"

TELEGRAM=1
TELEGRAM_TOKEN="my-token-here"
TELEGRAM_CHAT_ID="my-chat-id-here"
SPINDOWN=1
SNAP_STATUS=1
SNAPRAID_BIN="/home/snapraid/"

And after execution snapraid-aio-script.sh

root@omv6:~# "/home/snapraid/snapraid-aio-script.sh"
SnapRAID Script Job started [Sun 18 Dec 2022 08:57:30 PM EET]
Running SnapRAID version 12.2
SnapRAID AIO Script version 3.1.DEV9
----------------------------------------
## Preprocessing
Telegram notification is enabled.
Configuration file found.
Checking if all parity and content files are present.
All parity files found.
All content files found.
----------------------------------------
## Processing
### SnapRAID TOUCH [Sun 18 Dec 2022 08:57:30 PM EET]
Checking for zero sub-second files.
/home/snapraid/snapraid-aio-script.sh: line 510: /home/snapraid: Is a directory
No zero sub-second timestamp files found.
TOUCH finished [Sun 18 Dec 2022 08:57:30 PM EET]
### SnapRAID DIFF [Sun 18 Dec 2022 08:57:30 PM EET]
```
/home/snapraid/snapraid-aio-script.sh: line 148: /home/snapraid: Is a directory
```
DIFF finished [Sun 18 Dec 2022 08:57:30 PM EET]
**ERROR** - Failed to get one or more count values. Unable to continue.
Exiting script. [Sun 18 Dec 2022 08:57:30 PM EET]
Email address is set. Sending email report to **myAddress** [Sun 18 Dec 2022 08:57:30 PM EET]

Found, that was my mistake, according to description I decided that

SNAPRAID_BIN="/home/snapraid/"

Should be my folder where scripts placed, so changed to

SNAPRAID_BIN="/usr/bin/snapraid"

And script successfully started working.

But I have a questions:

1. Is it possible to have more details in telegram? I mean status and smart info?

Just create one more job and all output received by telegram.

2. I see one error

spinning down /dev/sda
/home/snapraid/snapraid-aio-script.sh: line 310: hd-idle: command not found

I did not install hd-idle, probably it is the reason?

Installed recommended hd-idle and it helped.

d13m nice to see some progress. So everything is working now?

Quote from auanasgheps

d13m nice to see some progress. So everything is working now?

Yes, thanks a lot, just more carefully read description on github 😉

May I ask here when I got message

Quote

[WARNING] Deleted files (78807) / (500) violation (SnapRAID on omv6)

If I understood correctly - That means that sync was not started, because maybe I want to recover this data?
And for example tomorrow I will delete another 10 000 files and day after tomorrow... so my question - if I am sure that I deleted what I don`t need, it was not incidental, I have to run once one of force sync commands?

If yes - which of them?

Quote from d13m

If I understood correctly - That means that sync was not started

By default the script will not sync if the threshold is breached. The email will tell Sync is not authorized or something similar.

The goal is to protect from unwanted massive deletions (delete protection) and ransomware (update protection). Not a backup, but still some form of protection.

To go beyond this protection, you have two ways:

- Increase thresholds to a value that fits your daily usage

- Change SYNC_WARN_THRESHOLD setting to 0 - a sync will ALWAYS be forced. Be careful. This is the option I use, because emails/notifications will still alert that the threshold was breached.

Quote from auanasgheps

By default the script will not sync if the threshold is breached. The email will tell Sync is not authorized or something similar.

The goal is to protect from unwanted massive deletions (delete protection) and ransomware (update protection). Not a backup, but still some form of protection.

To go beyond this protection, you have two ways:

- Increase thresholds to a value that fits your daily usage

- Change SYNC_WARN_THRESHOLD setting to 0 - a sync will ALWAYS be forced. Be careful. This is the option I use, because emails/notifications will still alert that the threshold was breached.

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If I don`t want to change your config and don`t know how many files I will delete tomorrow can I just make touch + sync from time to time?

Quote from d13m

If I don`t want to change your config and don`t know how many files I will delete tomorrow can I just make touch + sync from time to time?

Sure, but it's a manual process.

You also set how many times you'll be warned before forcing a sync.

Example: If you set SYNC_WARN_THRESHOLD=2, there will be no sync for 2 runs, and finally the third will force a sync.

Alternatively, there's a new option - not yet relased - called Added to Deleted Ratio. It will authorize a sync even if the delete threshold has been breached, but only if the ratio of added to deleted files is greater than the value set.

Quote from auanasgheps

Sure, but it's a manual process.

You also set how many times you'll be warned before forcing a sync.

Example: If you set SYNC_WARN_THRESHOLD=2, there will be no sync for 2 runs, and finally the third will force a sync.

Oh, with this "counter" it is the best option I think, because I can unpack my old git project there are 1000+ files, play around with it and remove and don`t know how many deleted/updated files I will have.

Grazie for you work and help 😉

Quote from d13m

Oh, with this "counter" it is the best option I think, because I can unpack my old git project there are 1000+ files, play around with it and remove and don`t know how many deleted/updated files I will have.

Grazie for you work and help 😉

You can also exclude folders where you know you'll unpack temporary files, and will be excluded by the parity.

This is managed by SnapRAID itself and can be achieved via OMV SnapRAID Settings.