MrKevbo Posted July 15, 2020 Share Posted July 15, 2020 I restarted Unraid today to find that it could no longer boot from my USB. I don't have a copy of my drive configuration. I'm at the part of this guide that says to make a post. I'm fairly certain I had CA Apps taking a back-up of my flash drive, but it saved them to the raid which is no longer accessible (...hindsight...). I've been trying to find a way to access my unraid disks from my Windows PC to see if I can find my CA Backup (praying it actually exists), no luck so far though. Anyone know of any programs to view XFS or BTRFS file systems in Windows? I think my back-ups are on my cache drive, so btrfs. Can anyone help me in either finding out what my old drive mappings were or with retrieving my Flash back-up from one of the disks? I have over 40TBs of data I'm really hoping I can restore. Thanks in advance Quote Link to comment
JonathanM Posted July 15, 2020 Share Posted July 15, 2020 Do you have a general idea of which drives were array and which were cache? Quote Link to comment
MrKevbo Posted July 15, 2020 Author Share Posted July 15, 2020 I 100% know my cache drive. And I know my parity drives (but don't know if which was parity #1 and parity #2). I have 9 other drives, no clue their order. Quote Link to comment
JonathanM Posted July 15, 2020 Share Posted July 15, 2020 How confident are you in the health of your data drives? Easiest way forward would be to set up a new Unraid USB stick, and assign all the data drives and cache drive. Leave both parity slots empty for the moment, and you should be able to access all your data. If you don't write anything to the drives, and you can find a current backup, you should be able to get everything back the way it was. As long as you don't assign anything to the parity slots, nothing should get overwritten. If at any point it asks you to format anything, DON'T. Post back with diagnostics and a screenshot of the Main GUI page. If you at all suspect you may have a failing data drive, we need to approach things a little differently. Quote Link to comment
MrKevbo Posted July 15, 2020 Author Share Posted July 15, 2020 (edited) I just found a program called UFS Explorer Raid Recovery. It allowed me to take an unraid drive, plug it into windows and view the contents. After parsing through 8 drives, I finally found DISK_ASSIGNMENTS.txt. So I now have a 100% accurate listing of my drive mappings. Should I still use your method and mount everything except the parity drives? Or should I include them now that I know what they are? What's the best way to take the back-up in the USB Backup folder and recreate my USB boot (do I just zip the folder and load it into the USB flash creator)? Disk Assignments Disk: parity Device: HGST_HUH721010ALE600_7PGM8HBG Status: DISK_OK Disk: disk1 Device: WDC_WD80EMZZ-00TBGA0_VJGWS3AX Status: DISK_OK Disk: disk2 Device: WDC_WD80EMAZ-00WJTA0_7SGUH5UC Status: DISK_OK Disk: disk3 Device: WDC_WD80EFZX-68UW8N0_VK0VA0KY Status: DISK_OK Disk: disk4 Device: WDC_WD80EFZX-68UW8N0_VK0VBXKY Status: DISK_OK Disk: disk5 Device: WDC_WD100EMAZ-00WJTA0_JEKYAD6Z Status: DISK_OK Disk: disk6 Device: WDC_WD60EFRX-68MYMN1_WD-WXA1D65E3S7T Status: DISK_OK Disk: disk7 Device: WDC_WD100EMAZ-00WJTA0_JEKZ9Y5Z Status: DISK_OK Disk: disk8 Device: WDC_WD60EFRX-68MYMN1_WD-WXA1D65E3PJY Status: DISK_OK Disk: disk9 Device: Status: DISK_NP Disk: disk10 Device: Status: DISK_NP Disk: disk11 Device: Status: DISK_NP Disk: disk12 Device: Status: DISK_NP Disk: disk13 Device: Status: DISK_NP Disk: disk14 Device: Status: DISK_NP Disk: disk15 Device: Status: DISK_NP Disk: disk16 Device: Status: DISK_NP Disk: disk17 Device: Status: DISK_NP Disk: disk18 Device: Status: DISK_NP Disk: disk19 Device: Status: DISK_NP Disk: disk20 Device: Status: DISK_NP Disk: disk21 Device: Status: DISK_NP Disk: disk22 Device: Status: DISK_NP Disk: parity2 Device: HGST_HUH721010ALE600_7PGR685C Status: DISK_OK Disk: cache Device: WDC_WDS100T2B0A-00SM50_180715800164 Status: DISK_OK Disk: flash Device: Flash_Voyager Status: DISK_OK Edited July 15, 2020 by MrKevbo Quote Link to comment
MrKevbo Posted July 15, 2020 Author Share Posted July 15, 2020 I got impatient and grew my confidence by ready more articles. I mapped all the drives according to the list above. Then started the array with the "parity is valid box" checked. My shares loaded right up. I then navigated to my CA USB backup and created a zip of all the contents. I then used the Unraid USB flash creator and reimaged my flash drive with the zip. Booted with the newly flashed drive, then once again remapped all my drives according list above. Now 100% back in business with all dockers and VMs loading straight up. Thanks for your help!! 2 Quote Link to comment
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