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Hello,
I expanded our Thecus in Raid 5 from 4 to 5 Disks and what happened was that all new Diskspace waas assigned to the Snapshot Capacity. I found a Descritption on the net how to solve the issue, but i dont know how to SSH.
Maybe there is an easier way?
In answer to slowbot and anyone else that is looking for a step by step process, here is what I did (again the hard stuff came from ner02 so the credit should go to him). Anything between quotes is what should be entered at the command prompt:
1. ssh to your Thecus and log in.
2. "cd /app"
3. "vi nohup.sh"
4. "i" – Allows you to insert text in the file
5. Copy and paste the nohup.sh code from ner02's message above.
6. hit the esc key – This moves you out of Insert mode
7. ":wq" – this writes the file and quits from vi. If you really screw up in vi and want to quit without saving the changes to the file you can ":q!" instead. To go back into the file just "vi nohup.sh" to open it back up.
8. "ps | grep sshd" – This will give you the process id of the ssh daemon
9. "vi add_raid.sh"
10. "i" – Allows you to insert text in the file
11. Copy and paste the add_raid.sh code from ner02's message above.
12. hit the esc key – This moves you out of Insert mode
13. "/12644" – searches the script for 12644. The first one it finds is in the comment.
14. "n" – skips to the next 12644 which is the kill 12644 line and the one we want to change.
15. "xxxxx" – deletes the 12644.
16. "i" then hit the space bar – goes into Insert mode and puts a space after the word kill
17. Enter the PID that came back for the sshd process from step 8 above
18. hit the esc key – This moves you out of Insert mode
19. "/200G" - searches the script for 200G. The first one it finds is in the comment.
20. "n" – skips to the next 200G which is the lvresize ${datadisk} -L +200G line and the one we want to change.
21. "xxx" – deletes the 200.
22. "i" – Allows you to insert text in the file
23. Enter the size of the available space of the new drive. Mine happened to be 464 for a 500 gig drive but as can be seen above this was determined through trial and error.
24. hit the esc key – This moves you out of Insert mode
25. ":wq" – this writes the file and quits from vi. If you really screw up in vi and want to quit without saving the changes to the file you can ":q!" instead. To go back into the file just "vi add_raid.sh" to open it back up.
26. ls -l | grep .sh – This will show you the permissions on the files that were just created. They probably only have -rw-r--r— permissions.
27. "chmod 755 nohup.sh" – Gives read and execute permissions to everyone and read, write and execute to the owner.
28. "chmod 755 add_raid.sh" - Gives read and execute permissions to everyone and read, write and execute to the owner.
29. ls -l | grep .sh – This will show you the permissions on the files that were just created. They should now have -rwxr-xr-x permissions.
30. "./nohup.sh ./add_raid.sh" – runs the scripts that were just created. If everything goes well you should lose your shh session and in the HTTP GUI you should see your RAID and Snapshot capacity as N/A. After a couple of hours the resized quantities will come back and you can use "pvdisplay" and "lvdisplay" to verify everything is as it should be. I don't know everything that can go wrong but for me my first couple of attempts were unsuccessful because I used the wrong resize value. The way I found this issue was to vi the /app/nohup.out file and search for the value I used.
I don't know if this will be helpful to anyone or was even necessary but I hope it will help someone. Please let me know if there are any issues with this instruction list and I will update the post.
And for the normal disclaimer, I felt comfortable enough with the process and the thought of losing my data to go through this procedure. Please don't think that by me writing this and being successful with it that I am saying you should do this or you will not lose all of your data. Use this information at your own risk.
