I been trying to troubleshoot my volume crash myself but I am at the end of my wits here. I am hoping someone can shine some light on to what my issue is and how to fix it.
A couple weeks I started to receive email alerts stating, “Checksum mismatch on NAS. Please check Log Center for more details.” I hopped on my NAS WebUI and I did not really seem much in the logs. After checking my systems were still functioning properly and I could access my file, I figured something was wrong but was not a major issue…..how wrong I was.
That brings us up until today, where I notice my NAS was only in read only mode. Which I thought was really odd. I tried logging into the WebUI but after I entered my username and password, I was not getting the NAS’s dashboard.
I figured I would reboot the NAS, thinking it would fix the issue. I had problems with the WebUI being buggy in the past and a reboot seemed to always take care of it.
But after the reboot I received the dreaded email, “Volume 1 (SHR, btrfs) on NAS has crashed”. I am unable to access the WebUI. But luckily, I have SSH enabled and logged on to the server and that’s where we are now.
Some info about my system:
12 x 10TB Drives
Synology 6.1.X as a DS3617xs
1 SSD Cache
24 GBs of RAM
1 x XEON CPU
Here is the output of some of the commands I tried already: (Have to edit some of the outputs due to SPAM detection)
Looks like the RAID comes up as md2. Seems to have the 12 drives active, not 100% sure
Received an error when running the this command: GPT PMBR size mismatch (102399 != 60062499) will be corrected by w(rite). I think this might have to do something with the checksum errors I was getting before.
Device Boot Start End Sectors Size Id Type /dev/sda1 2048 500103449 500101402 238.5G fd Linux raid autodetect
GPT PMBR size mismatch (102399 != 60062499) will be corrected by w(rite).
Quote
ash-4.3# vgdisplay --- Volume group --- VG Name vg1000 System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 2 VG Access read/write VG Status resizable MAX LV 0 Cur LV 1 Open LV 1 Max PV 0 Cur PV 1 Act PV 1 VG Size 90.91 TiB PE Size 4.00 MiB Total PE 23832028 Alloc PE / Size 23832028 / 90.91 TiB Free PE / Size 0 / 0 VG UUID rc3DXE-ddO3-qaOp-7gLC-6wll-hesC-yC5YFE
Quote
ash-4.3# lvdisplay -v Using logical volume(s) on command line. --- Logical volume --- LV Path /dev/vg1000/lv LV Name lv VG Name vg1000 LV UUID NUab2g-gp1H-bmCu-Vie0-1qmK-ougT-uNop9i LV Write Access read/write LV Creation host, time , LV Status available # open 1 LV Size 90.91 TiB Current LE 23832028 Segments 1 Allocation inherit Read ahead sectors auto currently set to 2560 Block device 253:0
When I try to interact with the LV it says it couldn't open file system.
Quote
ash-4.3# btrfs check /dev/vg1000/lv Couldn't open file system
I tried to unmounted the LV and/or remount it, it gives me errors saying its not mounted, already mounted or busy.
Quote
ash-4.3# umount /dev/vg1000/lv umount: /dev/vg1000/lv: not mounted ash-4.3# mount -o recovery /dev/vg1000/lv /volume1 mount: /dev/vg1000/lv is already mounted or /volume1 busy
Can anyone comment on whether this is a possibility to recover the data? Am I going in the right direction?
Question
drcrow_
I been trying to troubleshoot my volume crash myself but I am at the end of my wits here. I am hoping someone can shine some light on to what my issue is and how to fix it.
A couple weeks I started to receive email alerts stating, “Checksum mismatch on NAS. Please check Log Center for more details.” I hopped on my NAS WebUI and I did not really seem much in the logs. After checking my systems were still functioning properly and I could access my file, I figured something was wrong but was not a major issue…..how wrong I was.
That brings us up until today, where I notice my NAS was only in read only mode. Which I thought was really odd. I tried logging into the WebUI but after I entered my username and password, I was not getting the NAS’s dashboard.
I figured I would reboot the NAS, thinking it would fix the issue. I had problems with the WebUI being buggy in the past and a reboot seemed to always take care of it.
But after the reboot I received the dreaded email, “Volume 1 (SHR, btrfs) on NAS has crashed”. I am unable to access the WebUI. But luckily, I have SSH enabled and logged on to the server and that’s where we are now.
Some info about my system:
12 x 10TB Drives
Synology 6.1.X as a DS3617xs
1 SSD Cache
24 GBs of RAM
1 x XEON CPU
Here is the output of some of the commands I tried already: (Have to edit some of the outputs due to SPAM detection)
Looks like the RAID comes up as md2. Seems to have the 12 drives active, not 100% sure
Received an error when running the this command: GPT PMBR size mismatch (102399 != 60062499) will be corrected by w(rite). I think this might have to do something with the checksum errors I was getting before.
When I try to interact with the LV it says it couldn't open file system.
I tried to unmounted the LV and/or remount it, it gives me errors saying its not mounted, already mounted or busy.
Can anyone comment on whether this is a possibility to recover the data? Am I going in the right direction?
Any help would be greatly appreciated!
Edited by PolanskimanCleaned html code.
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