Because this was WAAYY more difficult to find any decent doco on that I had ever expected, here is what worked for me I deleted the netplan config file at /etc/netplan/01-netcfg.yaml 1rm /etc/netplan/01-netcfg.yaml Ensure that 'bonding' appears in /etc/modules (I's not here by default) 1echo bonding >> …

Read More

When using the new ceph-volume scan and activate commands on ceph Nautilus after an upgrade from Luminous I was getting the following message 1root@ceph2 ~]# ceph-volume simple activate --all 2--> activating OSD specified in /etc/ceph/osd/37-11af5440-dadf-40e3-8924-2bbad3ee5b58.json 3Running command: /bin/ln -snf …

Read More

Some gold info http://kimizhang.com/metadata-service-in-dhcp-namespace/

Read More

1sudo dpkg --listfiles docker-ce

Read More

1apt install oathtool 2oathtool --totp -b -d 6 KY3OUPMUYWCKS53F [https://stackpointer.io/unix/linux-totp-password-generator/629/][https://stackpointer.io/unix/linux-totp-password-generator/629/] https://github.com/philipsharp/FreeOTPDecoder Enable USB debugging - …

Read More

Find the host the VM is running on and the instance ID(Use console view to get instance ID) 1cp /etc/libvirt/qemu/instance-0000030a.xml . edit instance-0000030a.xml to be what you need it to be While the VM is running (Warning, will crash the VM) 1virsh destroy instance-0000030a 2virsh undefine instance-0000030a 3virsh …

Read More

Original article here Ceph’s default IO priority and class for behind the scene disk operations should be considered required vs best efforts. For those of us who actually utilize our storage for services that require performance will quickly find that deep scrub grinds even the most powerful systems to a halt. Below …

Read More

1ceph osd pool ls | while read line; do echo $line && ceph osd pool get $line crush_rule; done

Read More

If you use SNMP on Ubuntu you might see this annoying log entry repeat itself in syslog Sep 15 17:29:34 myServer snmpd[3609]: error on subcontainer 'ia_addr' insert (-1) Easy fix is 1sed -i 's/Lsd/LS6d/g' /etc/default/snmpd 2service snmpd restart Original article

Read More

Using Openswitch 2.3.1 on the Dell S6000-ON I was able to configure the fan-out \ breakout port configuration but the link was not coming up on my 10G switch or on the 4 sub interfaces generated by OPX. Use the following steps to solve that issue. Don't quote me on this but I believe that on the Dell S6000-ON ports …

Read More