Let's talk SMB protocol and failovers - what is your approach?

[GidonMarcus]

So, NetApp documenting really well what happening on the protocol level (http://www.netapp.com/us/media/tr-4100.pdf). and i assume doing large scale test for multiple software while knowing that "it shoulden't work" is not something anyone will invest time in...

But in real life what do you do or see? will appreciate if can you try and fill this template:

Estimate number of workstation:

ONTAP releases you have worked on:

Windows client versions:

Microsoft office versions:

Preferred failover time slot:

Are you notifying your users:

Are you asking the users to take any action:

Have you seen a user data loss as result of failover:

Have you seen consistent behavior or issues on the SMB clients upon failover:

Add your notes:

Thanks

[GidonMarcus]

 mine

Estimate number of workstation: 3000

ONTAP releases you have worked on in prod: 8.1.4-7 mode, 8.3.2 Cdot, 9.1 Cdot.

Windows client versions:  7+8+10

Microsoft office versions: 2013+2016

Preferred failover time slot: weekend

Are you notifying your users: yes

Are you asking the users to take any action: asking to close files, not enforcing or reporting in anyway.

Are your users actuellly taking the action: i see a few dozens session live before and after my upgrades

Have you seen a user data loss as result of failover: no

Have you seen consistent behavior or issues on the SMB clients upon failover: no

Add your notes:  i tried leaving excel and word files open. and consistent write to text file with powershell loop - don't remember seeing any error or prompt on either.