establish the "standard" virtual machine / instance size in Ganeti
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Ganeti clusters can define parameters for minimum, maximum and "standard" instance sizes. This is currently:
# gnt-cluster info
[...]
Instance policy - limits for instances:
bounds specs:
- max/0:
cpu-count: 8
disk-count: 16
disk-size: 1048576
memory-size: 32768
nic-count: 8
spindle-use: 12
min/0:
cpu-count: 1
disk-count: 1
disk-size: 1024
memory-size: 128
nic-count: 1
spindle-use: 1
std:
cpu-count: 1
disk-count: 1
disk-size: 1024
memory-size: 128
nic-count: 1
spindle-use: 1
allowed disk templates: drbd, plain
vcpu-ratio: 4
spindle-ratio: 32
[...]We should at least define some sort of "standard" here and define what the minimum and maximums should be.
for what it's worth, the average memory size right now is around 5GB
root@fsn-node-01:~# echo \($(gnt-instance list | awk '{ print $NF }' | grep G'$' | sed 's/G$/+/')0\) / $(gnt-instance list | awk '{ print $NF }' | grep G'$' | wc -l) | bc -l
4.80769230769230769230more investigation would be required to evaluate standard disk and CPU sizes.