TOPIC:

Hi,
we did perform a regular xcp-ng update (running xcp-ng 8.2), starting from the master node.
After rebooting the PDB of the shared storage is not plugged anymore giving back the error SR_BACKEND_FAILURE_47 as follows:

Mar 6 10:31:37 xen1 iscsi-ha: 16102 iSCSI target: tgtd status = OK. [ active (running) since Wed 2024-03-06 10:12:32 CET; 19min ago ]
Mar 6 10:31:37 xen1 iscsi-ha: 16102 local_ip_list: Local IP list returned 127.0.0.1#01210.10.10.1#01210.10.10.3#012172.16.56.5#01210.20.10.2
Mar 6 10:31:37 xen1 iscsi-ha: 16102 CHECKING IP 127.0.0.1
Mar 6 10:31:37 xen1 iscsi-ha: 16102 CHECKING IP 10.10.10.1
Mar 6 10:31:37 xen1 iscsi-ha: 16102 CHECKING IP 10.10.10.3
Mar 6 10:31:37 xen1 iscsi-ha: 16102 Virtual IP: 10.10.10.3 discovered on host xen1
Mar 6 10:31:37 xen1 iscsi-ha: 16102 send_replication_network_arp: Sending ARP update to peer
Mar 6 10:31:37 xen1 iscsi-ha: 16102 send_replication_network_arp: IP address list for [ xapi1 ] = [ 10.10.10.1#01210.10.10.3 ]
Mar 6 10:31:37 xen1 iscsi-ha: 16102 send_replication_network_arp: Updating ARP for device [ xapi1 ] IP [ 10.10.10.1 ]
Mar 6 10:31:38 xen1 iscsi-ha-NOTICE-/etc/iscsi-ha/init/iscsi-ha.mon: ARPING 10.10.10.1 from 10.10.10.1 xapi1
Mar 6 10:31:38 xen1 iscsi-ha-NOTICE-/etc/iscsi-ha/init/iscsi-ha.mon: Sent 2 probes (2 broadcast(s))
Mar 6 10:31:38 xen1 iscsi-ha-NOTICE-/etc/iscsi-ha/init/iscsi-ha.mon: Received 0 response(s)
Mar 6 10:31:38 xen1 iscsi-ha: 16102 send_replication_network_arp: Updating ARP for device [ xapi1 ] IP [ 10.10.10.3 ]
Mar 6 10:31:39 xen1 iscsi-ha-NOTICE-/etc/iscsi-ha/init/iscsi-ha.mon: ARPING 10.10.10.3 from 10.10.10.3 xapi1
Mar 6 10:31:39 xen1 iscsi-ha-NOTICE-/etc/iscsi-ha/init/iscsi-ha.mon: Sent 2 probes (2 broadcast(s))
Mar 6 10:31:39 xen1 iscsi-ha-NOTICE-/etc/iscsi-ha/init/iscsi-ha.mon: Received 0 response(s)
Mar 6 10:31:39 xen1 iscsi-ha: 16102 Skipping replication_link_check DRBD_LINK_OK=[true] STATE=[master] MANUAL_MODE=[off]
Mar 6 10:31:40 xen1 iscsi-ha: iscsi-ha Watchdog: iscsi-ha running - OK
Mar 6 10:31:43 xen1 iscsi-ha-ERROR-/etc/iscsi-ha/init/iscsi-ha.mon: Error code: SR_BACKEND_FAILURE_47
Mar 6 10:31:43 xen1 iscsi-ha-ERROR-/etc/iscsi-ha/init/iscsi-ha.mon: Error parameters: , The SR is not available [opterr=[Errno 2] No such file or directory: '/dev/disk/by-scsid/360000000000000000e0000000001000a'],


Could you please tell me which kind of action could I perform to fix the problem?

I did also read the last post to turn off the autostart and manually restart the iscsi-ha but keeps giving back the same error.

Hi,

Try restarting the server with iscsi-ha and iscsi-ha-watchdog disabled, wait about 2 minutes after the server boots and then stop the iscsid service and after a few seconds start it and look in /dev/disk/by-scsid/ to see if the missing ids appears. This solution worked for me yesterday