The update was successful and the maintenance, after a significant monitoring window, can be closed.
In case of unexpected issues please contact email@example.com
May 23, 10:14 CEST
in order to improve network availability and bandwidth between nodes, to fix security vulnerabilities and known bugs and to increase Block Storage pool, we are planning a major update of our entire infrastructure.
To minimize downtimes and update operations impact, the update will be carried out over two different nights in the Frankfurt Region.
Here’s what we are going to do:
Block Storage - we’ll increase the Ceph SATA PGs (placement groups) in order to reflect a more consistent growth. During this operation, due to the internal cluster rebalancing operations on drives, you may experience inability to access volumes mounted on VMs. This kind of operation may result in longer execution cycles.
Networking - we’ll apply some L3 availability improvements that will require us to migrate your vRouter to another gateway node. This will cause a 30 to 60 second internet glitch for your tenant.
Compute - we’ll proceed to update kernels and drivers (especially the network ones) in order to increase stability and gain a 5x bandwidth when transferring data between VMs running on different compute nodes.
During this planned maintenance we’ll proceed as follows:
STEP 1/2 - May 22th
11PM - 3AM CEST (UTC+2) -> Resize of Block Storage Cluster. Potential volume performance degradation.
12AM - 3AM CEST (UTC+2) -> L3 Network update. VM loss of Internet reachability up to 60 seconds.
4AM - 7AM CEST (UTC+2) -> E1 and E2-class Compute nodes upgrade and reboot, step 1/2. Downtime per node: 30 minutes.
STEP 2/2 - May 25th
12AM - 7AM CEST (UTC+2) -> E1,E2 and E3-class Compute nodes upgrade and reboot, step 2/2. Downtime per node: 30 minutes.
We apologise for any inconvenience. Feel free to contact us for any possible question at firstname.lastname@example.org
The Enter Cloud Suite Team
May 5, 12:58 CEST