USB drive is not available for hyper backup

[Mouse]

Hi,

Recently I have migrated from DS218+ to a new DS923+....then the problems started.
On the DS218 I had an external Samsung T7 1Tb SSD connected to USB for hyper backup, everything worked fine.
After migration, I plugged the T7 into the DS923+ and for whatever reason it became read only. I could not do anything, I have formatted with various file systems, but every time i started to setup a new backup schedule it was running to failure: Exception occurred while backing up data."

Today I have purchased a WD 4Tb USB drive, selected from synology compatibility list, but this drive is not showing up on possible destinations for backup. I have also tried to format with various file system, but no luck. I have tried to check access right, for my eye everything seems OK, but still the USB disk is not available.

The official synology forum seems not too active and responsive and thought it may worth to post here my question.

Would you have any idea what to look, where to look? Any idea would be highly appreciated as I am already out of them.

Thanks!

It is listed under shared folder, but without any indication of storage space:

When I edit the shared folder, I can see my own admin accoun has read/write access. The default admin and guest accounts are anyway disabled:

Under system internal users HyperBackup has read/write access:

Also, when I check under User & Group the permissions. All group and user listed with No Access to usbshare1....

 

[Rusty]

Welcome to the forum!

I have migrated from DS218+ to a new DS923+

How have you done this exactly?

I have also tried to format with various file system

So what have you done in this regard, and what exact format are you using? I'm guessing you have used DSM to format the drive, correct?

 

[Mouse]

1) I have followed Synology guide for migration between different models.
How do I migrate data between Synology NAS via HDD migration (DSM 6.0 and later)? - Synology Knowledge Center

2) I had my Samsung T7 in my previous DS218+, that always run to error and corruption. I have tried that to format with NAS, but that failed always.....so I have purchased WD 4TB from compatibility list and that one i have formatted via DSM to exfat now. Tried ext4 as well, no difference.

yesteday somehow T7 was working for single backuo, but extreme slow speed, about 200kbps, so eventually i have cancelled.
I start to think the NAS USB controller maybe deffective...no ide.

 

[Rusty]

1) I have followed Synology guide for migration between different models.
How do I migrate data between Synology NAS via HDD migration (DSM 6.0 and later)? - Synology Knowledge Center

2) I had my Samsung T7 in my previous DS218+, that always run to error and corruption. I have tried that to format with NAS, but that failed always.....so I have purchased WD 4TB from compatibility list and that one i have formatted via DSM to exfat now. Tried ext4 as well, no difference.

yesteday somehow T7 was working for single backuo, but extreme slow speed, about 200kbps, so eventually i have cancelled.
I start to think the NAS USB controller maybe deffective...no ide.

Ok so you did a drive migration, and can you verify that the T7 and the WD drives work when you connect them to another device and not the NAS?

 

[Mouse]

yes, both of them are working on windows and on macos as well.

when i plug the T7 to the NAS, then it shows i have read/write access, even though it is extreme slow, but for the WD as showed in my first post, no access to any of the users

 

[Rusty]

I have tried that to format with NAS, but that failed always

This is very odd indeed. What error is the DSM reporting when you try and format them?

 

[Mouse]

if i remember it was hanging for about 15-20 minutes saying formatting...then reported drive crashed.
the same T7 works totally fine with mac and windows and also was working totally fine with DS218.

T7 now I can somehow make it work if i format it on macbook, but as wrote it seems extreme slow, so practically unusable

 

[Mouse]

Problem is solved with the help of synology support.

My administrator is part of group "http" where access to "usbshare1" was prohibited.
Group policy is overruling individual user policy and that is the reason, when i even assigned access to my administrator account it was overruled by group policy.
Other important point is: administrator is always part of "users" group as well and stricter policy is applied. It is best not to assign any policy to "users" group, but rather to individual users.

 

[Telos]

My administrator is part of group "http"

Why was that done? Typically, the administrator need not belong to any group (apart from administration). Doing so causes odd issues like this.

 

[Mouse]

that is a good question...i do not remember
maybe when i was experimenting 2-3 years ago i assigned this group as well and as it was not causing till now any issues I was not paying attention.
Be careful, administrator is always part of "users" group, so that policy also applies and more strict is applied.