I'm trying to establish to what extent a cifs.ko linux client will support failover with a Windows 2012 R2 server, sharing a CSVFS backend. The symptom a user is seeing here is that the share works, but the file system does not fail over if the server it initially mounts goes down (kernel 3.13.0-49-generic, on Ubuntu 14.04). This link: https://wiki.samba.org/index.php/SMB3_kernel_status#Witness_Notification_Protocol implies that Witness Notification Protocol should work for a client if vers=3.02 is passed to mount.cifs. However, the user seems unable to get failover to work at all (transparently or otherwise). Questions: * Is failover supported on cifs.ko, and if so do I need a newer kernel version than 3.13? Are there any special commands needed to enable it other than mounting with vers=3? * Is transparent failover supported on cifs.ko, and do I need need a newer version than 3.13? Are there areny special commands needed to enable it other than mounting with vers=3.02? * Is there a 'HOWTO' to debug this? It seems to be hard to search for client stuff that works with failover. -- Alex Bligh -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
