Hi all,
I am having this issue today. Initially unraid sent a ton of messages indicating :
BTRFS warning (device sdg1): csum failed root (similar to this )
I tried o perfom a btrfss_scrub but it did not proceed .
I rebooted the system and my Cache ssd (m.2) is now missing.
This is all the log i can get without being able of starting the array.
text error warn system array login
Jun 25 16:06:01 Tower kernel: mdcmd (28): import 27
Jun 25 16:06:01 Tower kernel: mdcmd (29): import 28
Jun 25 16:06:01 Tower kernel: mdcmd (30): import 29
Jun 25 16:06:01 Tower kernel: md: import_slot: 29 empty
Jun 25 16:06:01 Tower emhttpd: import 30 cache device: no device
Jun 25 16:06:01 Tower emhttpd: import 31 cache device: (sdb) SanDisk_SD6SB1M-128G-1006_141262402316
Jun 25 16:06:01 Tower emhttpd: import flash device: sda
Jun 25 16:06:01 Tower root: Starting apcupsd power management: /sbin/apcupsd
Jun 25 16:06:01 Tower apcupsd[4263]: apcupsd 3.14.14 (31 May 2016) slackware startup succeeded
Jun 25 16:06:01 Tower apcupsd[4263]: NIS server startup succeeded
Jun 25 16:06:01 Tower emhttpd: read SMART /dev/sdd
Jun 25 16:06:01 Tower emhttpd: read SMART /dev/sde
Jun 25 16:06:01 Tower emhttpd: read SMART /dev/sdb
Jun 25 16:06:01 Tower emhttpd: read SMART /dev/sdf
Jun 25 16:06:01 Tower emhttpd: read SMART /dev/sdc
Jun 25 16:06:01 Tower emhttpd: read SMART /dev/sda
Jun 25 16:06:01 Tower emhttpd: Starting services...
Jun 25 16:06:01 Tower emhttpd: shcmd (13): /etc/rc.d/rc.samba restart
Jun 25 16:06:01 Tower wsdd2[1173]: 'Terminated' signal received.
Jun 25 16:06:01 Tower winbindd[1176]: [2023/06/25 16:06:01.611354, 0] ../../source3/winbindd/winbindd.c:247(winbindd_sig_term_handler)
Jun 25 16:06:01 Tower winbindd[1176]: Got sig[15] terminate (is_parent=1)
Jun 25 16:06:01 Tower winbindd[1177]: [2023/06/25 16:06:01.611359, 0] ../../source3/winbindd/winbindd.c:247(winbindd_sig_term_handler)
Jun 25 16:06:01 Tower winbindd[1177]: Got sig[15] terminate (is_parent=0)
Jun 25 16:06:01 Tower wsdd2[1173]: terminating.
Jun 25 16:06:01 Tower winbindd[2517]: [2023/06/25 16:06:01.611434, 0] ../../source3/winbindd/winbindd.c:247(winbindd_sig_term_handler)
Jun 25 16:06:01 Tower winbindd[2517]: Got sig[15] terminate (is_parent=0)
Jun 25 16:06:03 Tower root: Starting Samba: /usr/sbin/smbd -D
Jun 25 16:06:03 Tower smbd[4335]: [2023/06/25 16:06:03.803177, 0] ../../source3/smbd/server.c:1734(main)
Jun 25 16:06:03 Tower smbd[4335]: smbd version 4.15.7 started.
Jun 25 16:06:03 Tower smbd[4335]: Copyright Andrew Tridgell and the Samba Team 1992-2021
Jun 25 16:06:03 Tower root: /usr/sbin/wsdd2 -d
Jun 25 16:06:03 Tower wsdd2[4349]: starting.
Jun 25 16:06:03 Tower root: /usr/sbin/winbindd -D
Jun 25 16:06:03 Tower winbindd[4350]: [2023/06/25 16:06:03.867361, 0] ../../source3/winbindd/winbindd.c:1722(main)
Jun 25 16:06:03 Tower winbindd[4350]: winbindd version 4.15.7 started.
Jun 25 16:06:03 Tower winbindd[4350]: Copyright Andrew Tridgell and the Samba Team 1992-2021
Jun 25 16:06:03 Tower winbindd[4352]: [2023/06/25 16:06:03.871376, 0] ../../source3/winbindd/winbindd_cache.c:3085(initialize_winbindd_cache)
Jun 25 16:06:03 Tower winbindd[4352]: initialize_winbindd_cache: clearing cache and re-creating with version number 2
Jun 25 16:06:03 Tower emhttpd: shcmd (16): /etc/rc.d/rc.nfsd start
Jun 25 16:06:03 Tower kernel: RPC: Registered named UNIX socket transport module.
Jun 25 16:06:03 Tower kernel: RPC: Registered udp transport module.
Jun 25 16:06:03 Tower kernel: RPC: Registered tcp transport module.
Jun 25 16:06:03 Tower kernel: RPC: Registered tcp NFSv4.1 backchannel transport module.
Jun 25 16:06:03 Tower kernel: Installing knfsd (copyright (C) 1996
[email protected]).
Jun 25 16:06:03 Tower root: Starting RPC portmapper: /sbin/rpcbind -w
Jun 25 16:06:03 Tower root: Starting RPC NSM (Network Status Monitor): /sbin/rpc.statd
Jun 25 16:06:03 Tower rpc.statd[4379]: Version 2.5.4 starting
Jun 25 16:06:03 Tower sm-notify[4380]: Version 2.5.4 starting
Jun 25 16:06:03 Tower rpc.statd[4379]: Failed to read /var/lib/nfs/state: Success
Jun 25 16:06:03 Tower rpc.statd[4379]: Initializing NSM state
Jun 25 16:06:03 Tower root: Starting NFS server daemons:
Jun 25 16:06:03 Tower root: /usr/sbin/exportfs -r
Jun 25 16:06:03 Tower root: /usr/sbin/rpc.nfsd 8
Jun 25 16:06:05 Tower kernel: NFSD: Using UMH upcall client tracking operations.
Jun 25 16:06:05 Tower kernel: NFSD: starting 90-second grace period (net f0000000)
Jun 25 16:06:05 Tower root: /usr/sbin/rpc.mountd
Jun 25 16:06:05 Tower rpc.mountd[4397]: Version 2.5.4 starting
Jun 25 16:06:05 Tower emhttpd: shcmd (18): /etc/rc.d/rc.avahidaemon start
Jun 25 16:06:05 Tower root: Starting Avahi mDNS/DNS-SD Daemon: /usr/sbin/avahi-daemon -D
Jun 25 16:06:05 Tower avahi-daemon[4409]: Found user 'avahi' (UID 61) and group 'avahi' (GID 214).
Jun 25 16:06:05 Tower avahi-daemon[4409]: Successfully dropped root privileges.
Jun 25 16:06:05 Tower avahi-daemon[4409]: avahi-daemon 0.8 starting up.
Jun 25 16:06:05 Tower avahi-daemon[4409]: Successfully called chroot().
Jun 25 16:06:05 Tower avahi-daemon[4409]: Successfully dropped remaining capabilities.
Jun 25 16:06:05 Tower avahi-daemon[4409]: Loading service file /services/sftp-ssh.service.
Jun 25 16:06:05 Tower avahi-daemon[4409]: Loading service file /services/smb.service.
Jun 25 16:06:05 Tower avahi-daemon[4409]: Loading service file /services/ssh.service.
Jun 25 16:06:05 Tower avahi-daemon[4409]: Joining mDNS multicast group on interface br0.IPv4 with address 192.168.1.102.
Jun 25 16:06:05 Tower avahi-daemon[4409]: New relevant interface br0.IPv4 for mDNS.
Jun 25 16:06:05 Tower avahi-daemon[4409]: Joining mDNS multicast group on interface lo.IPv6 with address ::1.
Jun 25 16:06:05 Tower avahi-daemon[4409]: New relevant interface lo.IPv6 for mDNS.
Jun 25 16:06:05 Tower avahi-daemon[4409]: Joining mDNS multicast group on interface lo.IPv4 with address 127.0.0.1.
Jun 25 16:06:05 Tower avahi-daemon[4409]: New relevant interface lo.IPv4 for mDNS.
Jun 25 16:06:05 Tower avahi-daemon[4409]: Network interface enumeration completed.
Jun 25 16:06:05 Tower avahi-daemon[4409]: Registering new address record for 192.168.1.102 on br0.IPv4.
Jun 25 16:06:05 Tower avahi-daemon[4409]: Registering new address record for ::1 on lo.*.
Jun 25 16:06:05 Tower avahi-daemon[4409]: Registering new address record for 127.0.0.1 on lo.IPv4.
Jun 25 16:06:05 Tower emhttpd: shcmd (19): /etc/rc.d/rc.avahidnsconfd start
Jun 25 16:06:05 Tower root: Starting Avahi mDNS/DNS-SD DNS Server Configuration Daemon: /usr/sbin/avahi-dnsconfd -D
Jun 25 16:06:05 Tower avahi-dnsconfd[4418]: Successfully connected to Avahi daemon.
Jun 25 16:06:05 Tower emhttpd: Autostart disabled
Jun 25 16:06:05 Tower emhttpd: shcmd (24): /etc/rc.d/rc.php-fpm start
Jun 25 16:06:05 Tower root: Starting php-fpm done
Jun 25 16:06:05 Tower emhttpd: shcmd (25): /etc/rc.d/rc.nginx start
Jun 25 16:06:05 Tower root: Starting Nginx server daemon...
Jun 25 16:06:05 Tower avahi-daemon[4409]: Server startup complete. Host name is Tower.local. Local service cookie is 3182271114.
Jun 25 16:06:06 Tower avahi-daemon[4409]: Service "Tower" (/services/ssh.service) successfully established.
Jun 25 16:06:06 Tower avahi-daemon[4409]: Service "Tower" (/services/smb.service) successfully established.
Jun 25 16:06:06 Tower avahi-daemon[4409]: Service "Tower" (/services/sftp-ssh.service) successfully established.
Jun 25 16:06:28 Tower webGUI: Successful login user root from
Please let me know what else i can do .
Thank you in advance .