Running CURRENT (FreeBSD 14.0-CURRENT #52 main-n251260-156fbc64857: Thu Dec 2 14:45:55 CET 2021 amd64), out of the sudden the ZFS RAIDZ pool suffered from an error:
Solaris: WARNING: Pool 'POOL00' has encountered an uncorrectable I/O failure and has been suspended. The system does not repsond anymore on that pool, transactions to and from that pool are frozen, the system is 99.9% idle. The most "not so funny" part is: the box doesn't even recognize a "shutdown -r now" or a brute force "reboot". I still can login via ssh, but any action regarding the ZFS pool freezes the console/terminal. ZFS very often renders the system unresponsible forever. How can this be mitigated? The system in question is on a remote site and it seems not only to be bound to CURRENT, we realised similar problems on 13-STABLE as well. What can I do to "unfreeze" the ZFS? The main OS is, luckily, on an UFS/FFS filesystem and so not affected from that problem. By the way, here some more details, as far as I can pick those up: zpool clear POOL00 cannot clear errors for POOL00: I/O error Whatever took out the ZFS pool (can not see any hardware errors, the pool is part of services and especially a poudriere build system and under heavy load all the time, the box has 16 GB RAM), it also renders the rest of the system unusable in a way which is beyond a "reboot". Kind regrads, oh
