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[Xen-users] Boot XCP from USB Stick - Anybody already did it - How might this be done ?

Hello everybody,

we'd like to install and boot the XCP (1.6) Hypervisor from a USB-Stick - Why? We'd like to migrate from a couple of ESXi-Servers -which are in fact IBM-Blades sold with the ESX integrated. Those are installed on 2GB USB-Sticks as well that are installed inside the blades.

So far I've been able to find some industrial grade USB-Sticks of 4Gb/8Gb that are specified to operate at temperatures up to 85°C (inside a blade server) and are built using SLC-flash. Those are specified at MTBF of 5.000.000 hours of operation without the usual wear of flash cells - even at high I/O rates. So this should easily be very good for reliable dom0 operation. DomUs are planned to be kept on FC-SAN - But I absolutely do not want to boot from there

Why not install it on some small HDD? - those purpose built IBM Blade-Servers have no internal connectors for sas or sata disks but are already installed at that customer site

Anybody been able to compile usb-drivers for the installer or a kernel with built in drivers for USB or create a bootable image to be copied directly to a stick?

Any ideas of how to get this started ? Anybody did it before?

Andreas Balg

Am 13.12.2011 21:35, schrieb Jonathan Tripathy:
Hi Everyone,

I'm currently mulling over the idea of running our Dom0 on a USB flash disk. Currently, we have the Dom0 and DomU running of the same disk array. I'd like to know the list's opinion on doing this. It seems like a very nice idea to split the single critical Dom0 and the tens of DomUs.

I'd like to stop the DomUs from affecting the disk IOPS available for the Dom0 as I'm sure you'll appreciate the critical nature of the it.

Any opinions are very much appreciated


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