Okay. I'm looking through this. There are several problems:
[HARDWARE]
1) You have three zpools. All of them consist of a single disk. You have
absolutely zero redundancy for your entire server.
2) You do not have SMART tests configured.
3) /dev/ada0 (your anime-share drive) has the following entry in smartctl output:
Code:
188 Command_Timeout -O--CK 100 097 000 - 4295032849
This can indicate problems with power or data cable to drive.
4) /dev/ada1 (a WD Red Drive) is reporting multiple uncorrectable errors. It's power_cycle_count is low (81), but load_cycle_count high (181556) . This may indicate a firmware problem - needs to be wdidled. I would run a long smart test on the drive.
[SAMBA CONFIG]
You have configured your samba server to allow guest access with the user account "nobody". Your shares are owned by "Voyagerxp". You can change the user account associated with guest access to "Voyagerxp" and restart CIFS.... BUT... I see a samba panic in your logs. As well as multiple NT_STATUS_IO_TIMEOUT commands related to your Shares. So you probably have hardware problems.
[CONCLUSION]
If I were you, I'd back up my data immediately and get perform long smart tests on your drives. Swap cables connected to /dev/ada0 and see if the Command_Timout count continues to rise.