How to configure DRBL Client Bonding (High Availability)

Good morning

I’m looking to create a Diskless boot environment with high availability. At present, I have a DRBL server configured with two enslaved NIC’s (let’s call them eth0 and eth1 enslaved to bond0) in active_backup mode. Each is connected to different switch in a stack, both have an external connection to the same LAN.

The problem I’m having is getting this set up on the DRBL Client machines. /etc/network/interfaces on the clients contains a warning that DRBL manages these settings itself and that changing this file will do nothing. How can I configure the client similarly to the server – that is to say, eth0 and eth1 bonded in active_backup, connected to two different switches in a stack. Alternatively, is there a better way to achieve uninterrupted operation between the DRBL server and the client.

Check for the DNS availability without using hostname to query the DNS

I’m trying to query the DNS and check for it’s availability before establishing the connections to the other host, since my DNS server comes up after 8 secs after the CRS comes up(CRS hosts the DNS server). I tried dig, nslookup & host commands.

Is there any other way in which i can get to know the DNS availability without using the hostnames to query the DNS? This is because sometimes the hostname with which i’m querying might not be resolvable by DNS.The error is “nslookup: can’t resolve ‘mpu1’: Temporary failure in name resolution”. The same error occurs if my dns is down regardless of the presence of hostname.

Thanks in advance.

What is the difference between Pathfinder and D&D5e content and availability for French content in France?

I want to start a role-playing game with some friends, with me as the GM. I already practiced with another GM on an introductory game called Chroniques OubliƩs (Forgotten Chronicles), with simplified D&D 3.5e rules.

I know that Pathfinder and D&D 5e are the most popular systems, and I want to pick one of those two. I already read a lot about the difference between them (mostly on an English website), but I want to know if there is a major difference in content regarding French language between those two games. Does one have more campaigns in French? A better translation? A better distribution in France?

Availability of tooltip text for keyboard users

I am programming a desktop application and I use some icon-buttons without labels. I do not want to use Labels because of layout. So I set to every icon a descriptive tooltip text, because some icons are not self-explanatory. On mouse over the tooltip text is shown to the user.

However what about the Keyboard-only users? When they are tabbing through the application and the icon Buttons there will be no tooltip text shown. I did not found in any guideline (WCAG, ISO 9241,…) a recommandation how to implement a support for not self-explanatory icon buttons. Can anyone tell the norm? I cannot imagine that this issue has not been ruled.

I thought of some solutions:

  • showing the tooltip text on Focus, but this will be a bit irritating for the user if he knows the function of the icon button.
  • showing a context specific help pressing [F1] whil on focus.

What do you think about it? Or maybe are there some norms in the Guidelines (WCAG, ISO 9241,…)?

Failure to create availability group

I”m having a problem creating a new Availability group in a windows cluster. I have 3 nodes in the cluster. Two nodes are running as a FCI and a single stand-alone node that’s a member of the windows cluster.

Msg 19405, Level 16, State 17, Line 2 Failed to create, join or add replica to availability group ‘SQL Cluster 2’, because node ‘DRNode’ is a possible owner for both replica ‘DRNode’ and ‘SQL Instance’. If one replica is failover cluster instance, remove the overlapped node from its possible owners and try again.

I’ve fixed this issue by removing the DRNode from being a possible owner of the SQL FCI, but the issue persists. Do I need to restart the role to make it effective?

I’ve confirmed in PS that it’s correct.

 PS C:\Windows\system32> get-clusterownernode -resource "SQL Network  Name (FCI Name)"  ClusterObject                                               OwnerNodes -------------                                               ----------  SQL Network Name (FCI Name)                                 {Node1, Node2}