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Pro4 not rebooting
Really beginning to question ReadyNAS devices. Had 3 NV+ for 4-5 years and never an issue. Upgraded to an Ultra4+, Pro4 and Pro2 and everyone of them has crashed badly within 2 years of use. This ...
So still working to recover the data. Under Tech Mode, I was able to re-add the dropped disk to the arrays. And then even mount the arrays (well, md0 and md127 that have BTRFS on them). The Data array is just fine. The OS array md0, mounts but exhibits two unrecoverable BTRFS issues as reported by SCRUB (albeit poking around looks fine). I did have to "fix" one bad partition table copy on md0. The key is how to get the data off the data array since the unit will not boot? The Tech Mode OS seems locked down / hobbled. No other exec's will run even if added to the RAM disk. The existing exec's like Dropbear (ssh, scp) and similar (tar -c) have been disabled from copying off the array over the network (security measure?). I cannot seem to mount a local USB drive either. Have not investigated booting off a USB stick yet (think I read somewhere this is possible). Simple ideas? Prefer network as it is much faster than USB. My backup solution is incremental and too long to recreate. Just trying to avoid a loss of 8TB after this, a third machine since upgrading to OS6, somehow has a glitch that is preventing the current volumes from booting. Just cannot believe I will loose data again, a third time, and looking for a better solution. So much for RAID data protection :(
Likely answering my own question. More research. Seems all four drives are ST2000DL003 FW ver CC3C. Purchased at three different times from three different vendors. On HW list but not with notice of FW version at time of purchases. All test fine when I check them with SmartControl or similar currently; even SMART shows fine. But SeaTools simply reports "SMART Failure" on two of them (although other tests on SeaTools pass fine). SMART registers reporting on SmartControl and similar tools reports fine. So am guessing ReadyNAS is seeing some register that SeaTools is and refusing to boot with these two drives now. Am working to replace and clone all four drives to try and rebuild the array; a time bomb that was waiting to go off maybe. Not sure why ReadyNAS "Test Disk" does not report this (only did for one of the two and only once) or why there is not a more informative reason when trying to boot that this may be the issue. Too much time and energy; let alone sudden failure of the system with no warnings.
So still working to recover the data. Under Tech Mode, I was able to re-add the dropped disk to the arrays. And then even mount the arrays (well, md0 and md127 that have BTRFS on them). The Data array is just fine. The OS array md0, mounts but exhibits two unrecoverable BTRFS issues as reported by SCRUB (albeit poking around looks fine). I did have to "fix" one bad partition table copy on md0. The key is how to get the data off the data array since the unit will not boot? The Tech Mode OS seems locked down / hobbled. No other exec's will run even if added to the RAM disk. The existing exec's like Dropbear (ssh, scp) and similar (tar -c) have been disabled from copying off the array over the network (security measure?). I cannot seem to mount a local USB drive either. Have not investigated booting off a USB stick yet (think I read somewhere this is possible). Simple ideas? Prefer network as it is much faster than USB. My backup solution is incremental and too long to recreate. Just trying to avoid a loss of 8TB after this, a third machine since upgrading to OS6, somehow has a glitch that is preventing the current volumes from booting. Just cannot believe I will loose data again, a third time, and looking for a better solution. So much for RAID data protection :(
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