One of the SSDs on belvedere has shown too many read errors and has been kicked out of the ZFS pool.
The number of I/O errors associated with a ZFS device exceeded acceptable levels. ZFS has marked the device as faulted. impact: Fault tolerance of the pool may be compromised. eid: 661 class: statechange state: FAULTED host: belvedere.internal.softwareheritage.org time: 2020-12-15 13:33:01+0000 vpath: /dev/disk/by-id/wwn-0x500003965c898968-part1 vphys: pci-0000:3b:00.0-scsi-0:0:20:0 vguid: 0x400555B66F317456 devid: scsi-3500003965c898968-part1 pool: 0xA4C042D6C48B4A15