After a troubleshooting session with support:
The inspection is complete. As previously suspected, the issue is related to the SSD Hyper Cache. We have identified the cause of the problem and are currently discussing relevant countermeasures.
Scheduled Auto Shutdown a graceful one?
Re: Scheduled Auto Shutdown a graceful one?
F6-424 & F4-425 Plus at 7.0.0777
F4-424 Pro also at 7.0.0777
D4-320
F4-424 Pro also at 7.0.0777
D4-320
- magnus4ever
- Posts: 21
- Joined: 15 Jan 2025, 00:44

Re: Scheduled Auto Shutdown a graceful one?
I'm seeing the same issue, can someone elaborate what "issue is related to SSD Cache" means?
Is there some immeadiate measure available to avoid this?
Is there some immeadiate measure available to avoid this?
Re: Scheduled Auto Shutdown a graceful one?
I would say turn off ssd cache. Not many users really need it anyway. It might have been ok if it remained as the original option of read-only or read-write, but I noticed a post some time ago that said the read-only option had been removed.magnus4ever wrote: ↑11 Mar 2025, 22:28 I'm seeing the same issue, can someone elaborate what "issue is related to SSD Cache" means?
Is there some immeadiate measure available to avoid this?
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
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
Re: Scheduled Auto Shutdown a graceful one?
This issue has been resolved in TOS 6.0.648. If any customer continues to experience this problem, we recommend contacting our technical support email for a thorough remote inspection.
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)
Technical team: support(at)terra-master.com (for technical support)
Service team: service(at)terra-master.com (for purchasing, return, replacement, RMA service)
Re: Scheduled Auto Shutdown a graceful one?
Short answer: yes, issue is resolved. It did take on both of my boxes, to delete the hyper cache and recreate it after updating to 650.
F6-424 & F4-425 Plus at 7.0.0777
F4-424 Pro also at 7.0.0777
D4-320
F4-424 Pro also at 7.0.0777
D4-320
- magnus4ever
- Posts: 21
- Joined: 15 Jan 2025, 00:44

Re: Scheduled Auto Shutdown a graceful one?
Thanks for Answering, will do the same. After updating to 650, what type of Cache did you choose? Just read or Read/Write? I've read on this forum that the second option was canned?
Re: Scheduled Auto Shutdown a graceful one?
Balanced Mode.magnus4ever wrote: ↑12 Mar 2025, 18:03Thanks for Answering, will do the same. After updating to 650, what type of Cache did you choose? Just read or Read/Write? I've read on this forum that the second option was canned?
Wish there was some stats to verify what it is actually doing.
F6-424 & F4-425 Plus at 7.0.0777
F4-424 Pro also at 7.0.0777
D4-320
F4-424 Pro also at 7.0.0777
D4-320
- magnus4ever
- Posts: 21
- Joined: 15 Jan 2025, 00:44

Re: Scheduled Auto Shutdown a graceful one?
Does someone have advice how to safely delete the Hypercache? Tried to.delete it and update to version 650, but after restart, system is updated but Hypercache is still there.
I think it's creating some issues, especially with sync tasks.
I think it's creating some issues, especially with sync tasks.
- crisisacting
- Silver Member
- Posts: 499
- Joined: 20 Jan 2022, 16:42
Re: Scheduled Auto Shutdown a graceful one?
All file services need to be disabled prior to attempting, for deletion to be successful.

