iscsi Config Lost

RAID, Volume, storage pool, hard drive, USB, SSD cache and iSCSI LUN
Post Reply
User avatar
basherw
Posts: 3
Joined: 15 Nov 2025, 10:00
United States of America

iscsi Config Lost

Post by basherw »

I recently setup a F4-212(running TOS 5.1) server with 4 4TB HDs. I created an iscsi LUN and Target for my VMWare farm. It took some tinkering to get it running.
First I wasn't able to get both my esxi servers to connect to the target at the same time. I ended up deleting the target/lun recreating it with CHAP enabled and that did the trick.
Once I got it running, I was able to transfer my VMs from my old server to the new Terramaster. I verified VMs could switch from esxi to esxi without issue using the new storage.
However, I logged onto the config page for the F4-212 and it didn't show the iscsi config. THe service was still installed, but thewre was no config. I logged back onto the esxi servers and they still had a valid target and was able to add/remove vms so the F4 still "knew" it was hosting my iscsi store.
I rebooted my F4 today and when it came back up, the iscsi config was gone. The esxi servers no longer see it as a valid target and all my VMs are gone.
I tried to recreate the target/lun in TOS, but it only errors out on me.

I am hoping the old iscsi config and my lun is still on the system, but I have no idea how to find it now.
User avatar
RyanYang
TM Support
Posts: 1141
Joined: 01 Dec 2020, 11:50
China

Re: iscsi Config Lost

Post by RyanYang »

You can try restarting the application and TOS, and then you can use the following command to view the information:

Code: Select all

 ll /Volume1/@iSCSIStoragePool/

Code: Select all

 ll /Volume1/\@apps/iSCSIManager/configs/iSCSI.conf
You can make an appointment for a remote technical support through the online customer service on our official website. Our technical support team will check the cause of the abnormality for you.
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)
User avatar
basherw
Posts: 3
Joined: 15 Nov 2025, 10:00
United States of America

Re: iscsi Config Lost

Post by basherw »

If I am reading this right, it looks like the LUN is there, but the config files are not there.

[basherw@NASY1 ~]# ll /Volume1/@iSCSIStoragePool/
total 233G
drwxr-xr-x 2 basherw basherw 4.0K Nov 12 08:23 .
drwxr-xr-x 12 basherw basherw 4.0K Nov 15 2025 ..
-rw-r--r-- 1 basherw basherw 2.9T Nov 15 09:25 iscsi-spare-vdisk-thin1762907010
[basherw@NASY1 ~]# ll /Volume1/\@apps/iSCSIManager/configs/iSCSI.conf
/bin/ls: cannot access '/Volume1/@apps/iSCSIManager/configs/iSCSI.conf': No such file or directory
User avatar
RyanYang
TM Support
Posts: 1141
Joined: 01 Dec 2020, 11:50
China

Re: iscsi Config Lost

Post by RyanYang »

It seems that an engineer is needed to check and fix this issue for you. You can choose a suitable time to make an appointment with us for remote assistance.
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)
User avatar
basherw
Posts: 3
Joined: 15 Nov 2025, 10:00
United States of America

Re: iscsi Config Lost

Post by basherw »

After tinkering around by myself I got it working again.
The iSCSI.conf file in /etc/iscsi was corrupted. (Basically blank and incorrectly formatted).
Using my other F4-212 I created a new iSCSI config there, then copied the new iSCSI.conf file to my local system.
The old iSCSI lun was in /Volume1/@iSCSIStoragePool/ as stated above.
I simply altered the "filename" from the 2nd F4-212 to reflect the location/filename from the original F4-212. Then uploaded that.
One reboot later and tada, Bob's your uncle.
Little clean up in VMWare to recongize the LUN and VMs was all that's left.
I will be using a different storage solution for my iSCSI needs in the future.
Post Reply

Return to “Storage”