We use some basic CloudWatch alarms on our EC2 instances to perform notification via SNS of high CPU, etc. Is there a good way to automatically apply our standard alarm configuration to new EC2 instances spun up by an Auto Scaling Group?
I've implemented VSAN in my home lab and I'm trying to understand why I'm receiving a "Disk Space Utilization" failed alert.
The Cluster consists of a pair of servers and a Witness appliance. Each of the two servers has a 500 GB SSD and a 6 TB SATA drive. The SATA drives show a capacity of 5.46 TB, and the total raw capacity of the VSAN Datastore is reported as 10.81 TB. Everything was healthy when I set up the VSAN (well except for Hardware compatibility checks, but as I said this is a home lab).
After adding a fair amount of data to a thin disk provisioned VM I received the Disk Space Utilization alert. The Summary tab on the Datastore reports 7.29 TB of 10.81 TB used, which I take to mean that the actual raw storage taken by my VMs (which are all thin disks) is 7.29 TB. I'm using the default Storage Policy, so I think this means that 7.29 TB is twice what the VMs would be consuming without VSAN (i.e. RAID 1), so I should be consuming 3.64 TB on each host. However the alert says I am at 134% utilization (7465GB of 5533GB). What's going on here?
Here are some screenshots of my setup and the alert:
Note the Cluster warning in that last screen shot is complaining about Disk Balance, which I am also troubleshooting but I believe is unrelated to this issue.
I have a Log Group that includes several Log Streams (from several EC2 instances). Is there any way to simply "tail" the consolidated logs in the group? If I click "Search Events" that shows the consolidated logs but the button that jumps to the end of the logs is grayed out. I have to manually plug in the date and time. I also tried the aws cli, but aws logs get-log-events requires a single log stream name to be specified.