SD cards and USB flash drives for hypervisors
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As I hear folks talk about running Hyper-V and other hypervisors from removable storage, leaving all of the rest of the server's storage / resources for the VMs, I wonder about the quality of the media used. I know in the world of hard drives one of the things you look for in for "enterprise" drives is the URE rate (10^15, rather than 10^14 that you see in consumer drives).
Are there particular qualities considered for SD cards / flash drives that run your hypervisor?
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@EddieJennings said in SD cards and USB flash drives for hypervisors:
As I hear folks talk about running Hyper-V and other hypervisors from removable storage, leaving all of the rest of the server's storage / resources for the VMs, I wonder about the quality of the media used. I know in the world of hard drives one of the things you look for in for "enterprise" drives is the URE rate (10^15, rather than 10^14 that you see in consumer drives).
Are there particular qualities considered for SD cards / flash drives that run your hypervisor?
The answer here is don't.
The only hypervisor that is designed for this is VMWare.
Both Hyper-V and XS can be run this way, but it is in no way a supported configuration and it in fact recommended against by the manufacturer.
I have no idea how well KVM handles this. Would probably be pretty good with KVM, just going by my experience with running Fedora live from USB.
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@JaredBusch I see. Good to know.
For those who would run VMWare in this way, do these folks use just run-of-the-mill media? -
@EddieJennings said in SD cards and USB flash drives for hypervisors:
As I hear folks talk about running Hyper-V and other hypervisors from removable storage...
It's really only VMware these days.
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@EddieJennings said in SD cards and USB flash drives for hypervisors:
@JaredBusch I see. Good to know.
For those who would run VMWare in this way, do these folks use just run-of-the-mill media?Mostly, yes. Just run to Walmart and grab some SD cards.
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@JaredBusch said in SD cards and USB flash drives for hypervisors:
I have no idea how well KVM handles this. Would probably be pretty good with KVM, just going by my experience with running Fedora live from USB.
Should do it great, but would need to be configured to be Live.
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I haven't found a live version of a KVM hypervisor but there is a live Xen hypervisor version from Alpine Linux.
https://alpinelinux.org/downloads/ -
actually hpe supports hyperv on their microSD. Just done this in february. let's see how much does it last... (fingercrossing)
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Dell servers do not like Hyper-V on any USB anything. Tried with 2012R2 and 2016, no love. Could have configured and deployed 10 hosts in the time I spent dicking around with it.
