I have a TS-419P II, Firmware 4.2.0 Build 20160130, with 4 discs.
Before disaster striked I had a working Raid 5 system with 3 active discs (Drive 1-3) and 1 global spare disk (Drive 4) .
When storage capacity became low, I took the spare disc and changed it to a free disc and expanded the Raid 5 from 3 to 4 discs.
The NAS system started to rebuild.
After a week the front LEDs were still blinking red/green, but there was no noise from the discs.
I pressed the Power button. It did not shut down orderly.
I am pretty sure that the Raid 5 expansion did not finish.
I took out all discs and gave back power.
Short beep and then a long beep. So Hardware is OK.
Then beginning with disc 1, I gave all discs back into the NAS while it was running.
After several minutes the web interface is looking totally different. NAS is on another IP address, gave me two options, to destroy my data or to rebuilt. The later I decided.
Now I ended up with a Raid only consisting of Drive 1 and 3. Disk 2 is shown as Single Disk. And disk 4 is not shown under Logical Volume at all.
LED light blinking red
Is there anything I can do to mount Drive 2 and 4 to get back my data???
Any help appreciated!
Thx,
Christian
Data Loss after Crash during Raid5 Expansion from 3 to 4 discs
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zebramusiker
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- Joined: Sat Mar 12, 2016 4:23 am
Data Loss after Crash during Raid5 Expansion from 3 to 4 discs
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MrVideo
- Experience counts
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- Joined: Fri May 03, 2013 2:26 pm
Re: Data Loss after Crash during Raid5 Expansion from 3 to 4 discs
I do hope that you have external backups of your data. Open a helpdesk ticket with QNAP and hopefully they'll be able to resolve your problem.
QTS MANUALS
Submit QNAP Support Ticket - QNAP Tutorials, FAQs, Downloads, Wiki - Product Support Status - Moogle's QNAP FAQ help V2
Asking a question, include the following (Thanks to Toxic17)
QNAP md_checker nasreport (release 20210309)
===============================
Model: TS-869L -- RAM: 3G -- FW: QTS 4.1.4 Build 20150522 (used for data storage)
WD60EFRX-68L0BN1(x1)/68MYMN1(x7) Red HDDs -- RAID6: 8x6TB -- Cold spare: 1x6TB
Entware
===============================
Model: TS-451A -- RAM: 2G -- FW: QTS 4.5.2 Build 20210202 (used as a video server)
WL3000GSA6472(x3) White label NAS HDDs -- RAID5: 3x3TB
Entware -- MyKodi 17.3 (default is Kodi 16)
===============================
My 2017 Total Solar Eclipse Photos | My 2019 N. Ireland Game of Thrones tour
Submit QNAP Support Ticket - QNAP Tutorials, FAQs, Downloads, Wiki - Product Support Status - Moogle's QNAP FAQ help V2
Asking a question, include the following (Thanks to Toxic17)
QNAP md_checker nasreport (release 20210309)
===============================
Model: TS-869L -- RAM: 3G -- FW: QTS 4.1.4 Build 20150522 (used for data storage)
WD60EFRX-68L0BN1(x1)/68MYMN1(x7) Red HDDs -- RAID6: 8x6TB -- Cold spare: 1x6TB
Entware
===============================
Model: TS-451A -- RAM: 2G -- FW: QTS 4.5.2 Build 20210202 (used as a video server)
WL3000GSA6472(x3) White label NAS HDDs -- RAID5: 3x3TB
Entware -- MyKodi 17.3 (default is Kodi 16)
===============================
My 2017 Total Solar Eclipse Photos | My 2019 N. Ireland Game of Thrones tour
-
zebramusiker
- New here
- Posts: 2
- Joined: Sat Mar 12, 2016 4:23 am
Re: Data Loss after Crash during Raid5 Expansion from 3 to 4 discs
Data restored! 
Here is what I did.
Since the NAS crashed during Raid 5 Expansion from 3 to 4 discs I started with the following assumption:
Some data might be still available on
-Discs #1, #2 and #3 in a Raid 5 config with 3 disc
-Discs #1, #2, #3 and #4 in a Raid 5 config with 4 discs
Sucessful was the second trial; the 4 discs Raid 5 config but I mounted only discs #1, #3 and #4 in a PC since #2 had been "unmounted" in the NAS.
Besides that I worked through this procedure starting with chapter 6 https://community.spiceworks.com/how_to ... esktop-pcs
The free ReclaiMe Free RAID Recovery software delivers all necessary instructions how the data can be restored with R-Studio (http://www.r-studio.com).
The R-Studio software costs $ 80.-
Took 6 days in total. Got all files back with all folder names and correct file names.
Learned a lot. Backup your data!!!!
Here is what I did.
Since the NAS crashed during Raid 5 Expansion from 3 to 4 discs I started with the following assumption:
Some data might be still available on
-Discs #1, #2 and #3 in a Raid 5 config with 3 disc
-Discs #1, #2, #3 and #4 in a Raid 5 config with 4 discs
Sucessful was the second trial; the 4 discs Raid 5 config but I mounted only discs #1, #3 and #4 in a PC since #2 had been "unmounted" in the NAS.
Besides that I worked through this procedure starting with chapter 6 https://community.spiceworks.com/how_to ... esktop-pcs
The free ReclaiMe Free RAID Recovery software delivers all necessary instructions how the data can be restored with R-Studio (http://www.r-studio.com).
The R-Studio software costs $ 80.-
Took 6 days in total. Got all files back with all folder names and correct file names.
Learned a lot. Backup your data!!!!