During a cluster routine check with RVtools I’ve seen a warning.
Warnings like this on a vCenter appliance let my alarm bells ring. Partitions filling up close to 100% are not a desirable condition. But let’s have a look into VAMI (vCenter Appliance Management Interface).
Now that’s strange. Everything seems to be in a green state. It’s a VCSA 6.7 Update 2a (18.104.22.168000). Older versions did show a storage warning. “File system /storage/archive is low on storage space“. But this appliance seems to be happy. Let’s have a look at the shell, to see what’s really happening.
It looks like mount point /storage/archive is almost filled up.
To manage a vCenter Server Appliance (VCSA) there’s a special user interface called Virtual Appliance Management Infrastructure (VAMI). You can access it by entering the FQDN of your vCenter into a browser, followed by port 5480.
This UI helps you to monitor your vCenter Virtual Appliance. You can change basic settings, apply updates and watch system status.
After updating a VCSA to the latest version of vCenter, I had to reboot the appliance. After the reboot process had finished, I wasn’t able to login to VAMI. Sometimes services need quite some time to become available, but even waiting for a longer period of time (a cup of coffee) nothing happened. VAMI presented a login screen, so obviously the webserver was up and running. But each time I entered the (correct) credentials I got the message “unable to login”. Screenshot is in German but you’ll most likely get the point ;-).
If you’ve ever had the task to upgrade a number of ESXi servers, you’ll know that it’s a hell lot of work to be done even before you can upgrade the first host. Is the host still on the VMware Hardware Compatibility List (HCL)? Are my PCIe cards (NIC, HBA, SCSI-controller) still supported? Does the current firmware match the future driver?
Finding answers all of these questions might take hours of research. Especially if you have non-uniform clusters.
Runecast got you covered
We have good news for those of you who already use Runecast-Analyzer to scan their cluster against KB issues. The latest beta (2.7.0) of the HW compatibility tool can now simulate host upgrades. Wow cool is that!