[Help] Filesystem Snapshot

TerraMaster Snapshot is a disaster recovery tool developed based on the BTRFS file system.
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Gremlin
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Joined: 02 Dec 2022, 22:31
Great Britain

Re: [Help] Filesystem Snapshot

Post by Gremlin »

FYI; today is day 7 of my new 7 day schedule and I have seven completed snapshots (Filesystem, not app) on each Volume. I guess the trick will be if I have a new, seventh snapshot tomorrow night. ;)
F5-221 TOS7.0.0777 - 4x4TB (Ironwolf) Traid
F2-424 TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (HGST) Traid
F2-221 TOS7.0.0777 - 1x3TB Ext4, 1x4TB Btrfs
F2-425+ TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (EXOS) Traid
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rfbjr
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Joined: 16 May 2024, 23:43
United States of America

Re: [Help] Filesystem Snapshot

Post by rfbjr »

Image

So today's snap did not run on either NAS. So I manually deleted the 21st&22nd snaps on both NAS.
Tomorrow I'll see if the March 1st snap is created.
Seems to me that once a day is skipped the purge oldest (in my case 3) fails to run and the new snap isn't created/run.
F6-424 & F4-425 Plus at 7.0.0777
F4-424 Pro also at 7.0.0777
D4-320
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Gremlin
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Great Britain

Re: [Help] Filesystem Snapshot

Post by Gremlin »

Day 8: I only have the same seven snapshots as last night. The oldest has not been deleted and today's snapshots did not run (apparently). There seems to be an issue...... I have manually deleted the oldest snapshots (one per Volume) and will also wait for tomorrow night.
F5-221 TOS7.0.0777 - 4x4TB (Ironwolf) Traid
F2-424 TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (HGST) Traid
F2-221 TOS7.0.0777 - 1x3TB Ext4, 1x4TB Btrfs
F2-425+ TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (EXOS) Traid
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Felix
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Joined: 28 Jan 2026, 15:24
China

Re: [Help] Filesystem Snapshot

Post by Felix »

rfbjr wrote: 27 Feb 2026, 22:16 More fun facts, neither created a snapshot at the scheduled time. Even running manually. What I did this time was just delete the oldest of the 3 snapshots (number to keep is 3) and then run manually, it worked. So tomorrow I'll see if runs as scheduled and delete the next oldest.
Thank you for your feedback. Please share any updated results with us. We will forward this information to our laboratory for verification and root cause analysis.
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rfbjr
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Re: [Help] Filesystem Snapshot

Post by rfbjr »

Thought I posted this, yesterday I manually deleted the two oldest. So, before today's run, there was only one snapshot in the list.
So, todays run was fine, both NAS created the March 1st snapshot. The March 2nd should run tomorrow w/o issue. The March 3rd run will be the test.
F6-424 & F4-425 Plus at 7.0.0777
F4-424 Pro also at 7.0.0777
D4-320
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Gremlin
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Posts: 1628
Joined: 02 Dec 2022, 22:31
Great Britain

Re: [Help] Filesystem Snapshot

Post by Gremlin »

With only six snapshots in the list, today's ran OK. Will check again tomorrow.
F5-221 TOS7.0.0777 - 4x4TB (Ironwolf) Traid
F2-424 TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (HGST) Traid
F2-221 TOS7.0.0777 - 1x3TB Ext4, 1x4TB Btrfs
F2-425+ TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (EXOS) Traid
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Gremlin
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Posts: 1628
Joined: 02 Dec 2022, 22:31
Great Britain

Re: [Help] Filesystem Snapshot

Post by Gremlin »

Again, with a full set |(seven in this case), the oldest snapshot did not delete and no new snapshot has been generated.
:arrow: :?: Tos7 Filesystem Snapshot algorithm is flawed. :?:
:idea: Maybe it is just executing the 'STOP' action (the only other option). :idea:
I think I am done with testing this.
@TMSupport - Any thoughts?

{email to pm(at)Terra-master.com sent}
F5-221 TOS7.0.0777 - 4x4TB (Ironwolf) Traid
F2-424 TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (HGST) Traid
F2-221 TOS7.0.0777 - 1x3TB Ext4, 1x4TB Btrfs
F2-425+ TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (EXOS) Traid
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Gremlin
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Posts: 1628
Joined: 02 Dec 2022, 22:31
Great Britain

Re: [Help] Filesystem Snapshot

Post by Gremlin »

FYI: email reply from Beta Test desk has confirmed our issue:
Hi, we have confirmed with the lab that this is indeed a defect, and we will fix it as soon as possible.
Thank you very much for your feedback and support.
I will inform the after-sales technical support team about this issue.

[email protected]
F5-221 TOS7.0.0777 - 4x4TB (Ironwolf) Traid
F2-424 TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (HGST) Traid
F2-221 TOS7.0.0777 - 1x3TB Ext4, 1x4TB Btrfs
F2-425+ TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (EXOS) Traid
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MikeZhang
TM Support
Posts: 381
Joined: 05 Sep 2023, 22:21

Re: [Help] Filesystem Snapshot

Post by MikeZhang »

Gremlin wrote: 03 Mar 2026, 09:05
1. It is recommended to refresh the current snapshot task to ensure it obtains the latest data status.

2. If refreshing does not effectively resolve the issue, consider deleting the existing snapshot task and creating a new one.

3. If the above methods fail to resolve the issue, uninstall the snapshot, reinstall and deploy it, and then create a new snapshot task.
To contact our team, please send email to following addresses, remember to replace (at) with @

Technical team: support(at)terra-master.com(for technical support)
Service team: service(at)terra-master.com(for purchasing, return, replacement, RMA service)
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Gremlin
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Posts: 1628
Joined: 02 Dec 2022, 22:31
Great Britain

Re: [Help] Filesystem Snapshot

Post by Gremlin »

MikeZhang wrote: 03 Mar 2026, 18:25
I think we have done all that. I'll wait for the development team to fix the KNOWN ISSUE! {see previous}

ps how would you uninstall "Filesystem Snapshot" :?:
F5-221 TOS7.0.0777 - 4x4TB (Ironwolf) Traid
F2-424 TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (HGST) Traid
F2-221 TOS7.0.0777 - 1x3TB Ext4, 1x4TB Btrfs
F2-425+ TOS7.0.0777 - 2x500GB nvme (P3) Traid, 2x6TB HDD (EXOS) Traid
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