Hi to all! I’ve got to the place, where I feel, I miss something important. It would be very helpful, if somebody could point me in right direction, or at least explain, why this is happening and what are my chances.
My old FreeNAS 9.x system died due to USB boot failure. I built new system, installed FreeNAS 11.2-U6. After main config and access setup to web ui, I further added 4 2TB WD RED drives from old NAS into new one. Drives were visible by BSD and in UI, SMART gives no errors, thus theoretically I assume, data are intact. But I cannot import pool via Web UI - no pool is listed in drop down.
Turning to CLI for troubleshooting, do not help eather. zpool import gives nothing, not even error. Gpart displays all drives correctly, including 2G swap partition as first, and remaining disk volume as freebsd-zfs partition. Gptid/ folder is populated with drive serials and seems to be correct. But it cannot read labels. I’ve tried zpool import -a and zpool import -d /dev/gptid - no output at all, no pool found. zdb -l /dev/ada0 gives out the following
From other output, zfs is on adaXp2 partition, but I cannot access it, nor read labels. If I understand situation correctly, if ZFS is not able to read labels, it cannot reconstruct correct zpool. Is this right? How could I read additional information from single drive, regarding former zfs configuration?
Unfortunately, I do not have any notes, nor even remember zpool or volume names from old system, as it died almost a year ago. But I feel, that data are intact, and probably there is a way to recover it, or at least reconstruct manually.
Is there a way to find out names of zpools and zvols from HDD? Or other way, to reconstruct data from these 4x drives?
If it will be so, I’m ready to loose data on these drives. But thought, that this would be the good case, to try and test out, how I could use and learn zfs. But I’m currently stuck with this, and still try to not execute any code, that would kill data on drives completely.
Some knowledge of yours or point to direction of documentation would be very helpful, if this would be the case, to recover data without almost 0 knowedge of former zfs configuration from drives coming from old FreeNAS system, assuming, that new hw may introduce different paths and directories for drives.
Thank you in advance for sharing...
My old FreeNAS 9.x system died due to USB boot failure. I built new system, installed FreeNAS 11.2-U6. After main config and access setup to web ui, I further added 4 2TB WD RED drives from old NAS into new one. Drives were visible by BSD and in UI, SMART gives no errors, thus theoretically I assume, data are intact. But I cannot import pool via Web UI - no pool is listed in drop down.
Turning to CLI for troubleshooting, do not help eather. zpool import gives nothing, not even error. Gpart displays all drives correctly, including 2G swap partition as first, and remaining disk volume as freebsd-zfs partition. Gptid/ folder is populated with drive serials and seems to be correct. But it cannot read labels. I’ve tried zpool import -a and zpool import -d /dev/gptid - no output at all, no pool found. zdb -l /dev/ada0 gives out the following
Code:
# zdb -l /dev/ada0 ------------------------------------ LABEL 0 ------------------------------------ failed to unpack label 0 ------------------------------------ LABEL 1 ------------------------------------ failed to unpack label 1 ------------------------------------ LABEL 2 ------------------------------------ failed to unpack label 2 ------------------------------------ LABEL 3 ------------------------------------ failed to unpack label 3
From other output, zfs is on adaXp2 partition, but I cannot access it, nor read labels. If I understand situation correctly, if ZFS is not able to read labels, it cannot reconstruct correct zpool. Is this right? How could I read additional information from single drive, regarding former zfs configuration?
Unfortunately, I do not have any notes, nor even remember zpool or volume names from old system, as it died almost a year ago. But I feel, that data are intact, and probably there is a way to recover it, or at least reconstruct manually.
Is there a way to find out names of zpools and zvols from HDD? Or other way, to reconstruct data from these 4x drives?
If it will be so, I’m ready to loose data on these drives. But thought, that this would be the good case, to try and test out, how I could use and learn zfs. But I’m currently stuck with this, and still try to not execute any code, that would kill data on drives completely.
Some knowledge of yours or point to direction of documentation would be very helpful, if this would be the case, to recover data without almost 0 knowedge of former zfs configuration from drives coming from old FreeNAS system, assuming, that new hw may introduce different paths and directories for drives.
Thank you in advance for sharing...