Landscape SAAS is reporting an odd RAM amount for VMs on Hyper-V

[Jose Delarosa]

Landscape SAAS is reporting an odd RAM amount for certain VMs on Hyper-V.

For example,
Memory Information

Size: 803 TiB RAM

cat /proc/meminfo
MemTotal: 49427596 kB
MemFree: 45278020 kB
MemAvailable: 48166560 kB
Buffers: 22908 kB
Cached: 3186272 kB
SwapCached: 0 kB

[Jose Delarosa (jdelaros1)]

Screenshot attached

[Simon Poirier (simpoir)]

While I'm not familiar with Hyper-V, but allow me to guess

Landscape use lshw to create the hardware inventory. This probes hardware directly to know the ram available and does not depend on drivers and software support, unlike the proc filesystem.

Since it was specified this issue affects only some VMs, I suspect it's particular to their configuration. Hyper-V has a "dynamic memory" configuration to have VMs shrink and grow on demand. If I had to guess, those VMs have that setting on, thus having a non-fixed memory size. Hyper-V probably exposes that "hardware" as the maximum addressable size it supports (i.e. the absurdly large 803TiB).

If that's the case, there is little we can do in landscape to fix the hardware report since those are the values the hypervisor sends it. Graphs don't use that data and look correct.