root@OPNsense:~ # zpool attach zroot ada0p4 ada1p4root@OPNsense:~ # zpool status pool: zroot state: ONLINEstatus: One or more devices is currently being resilvered. The pool will continue to function, possibly in a degraded state.action: Wait for the resilver to complete. scan: resilver in progress since Sat Feb 18 10:37:03 2023 6.74G scanned at 363M/s, 1.13G issued at 60.9M/s, 6.74G total 1.20G resilvered, 16.77% done, 00:01:34 to goconfig: NAME STATE READ WRITE CKSUM zroot ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 ada0p4 ONLINE 0 0 0 ada1p4 ONLINE 0 0 0 (resilvering)errors: No known data errorsroot@OPNsense:~ # zpool status pool: zroot state: ONLINE scan: resilvered 6.98G in 00:01:52 with 0 errors on Sat Feb 18 10:38:55 2023config: NAME STATE READ WRITE CKSUM zroot ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 ada0p4 ONLINE 0 0 0 ada1p4 ONLINE 0 0 0errors: No known data errorsroot@OPNsense:~ # dd if=/dev/ada0p1 of=/dev/ada1p1532480+0 records in532480+0 records out272629760 bytes transferred in 97.602079 secs (2793278 bytes/sec)root@OPNsense:~ # dd if=/dev/ada0p2 of=/dev/ada1p21024+0 records in1024+0 records out524288 bytes transferred in 0.065542 secs (7999318 bytes/sec)root@OPNsense:~ # zpool status pool: zroot state: ONLINE scan: resilvered 6.98G in 00:01:52 with 0 errors on Sat Feb 18 10:38:55 2023config: NAME STATE READ WRITE CKSUM zroot ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 ada0p4 ONLINE 0 0 0 ada1p4 ONLINE 0 0 0errors: No known data errorsroot@OPNsense:~ # gpart show=> 40 468862048 ada0 GPT (224G) 40 532480 1 efi (260M) 532520 1024 2 freebsd-boot (512K) 533544 984 - free - (492K) 534528 16777216 3 freebsd-swap (8.0G) 17311744 451549184 4 freebsd-zfs (215G) 468860928 1160 - free - (580K)=> 40 488397088 ada1 GPT (233G) 40 532480 1 efi (260M) 532520 1024 2 freebsd-boot (512K) 533544 984 - free - (492K) 534528 16777216 3 freebsd-swap (8.0G) 17311744 451549184 4 freebsd-zfs (215G) 468860928 19536200 - free - (9.3G)