Which of the hypervisors normally eats a soft raid?

Question

RAID

I have raid 1 built into the chipset, but ESXi does not see it (starting from version 5.5), perceiving disks as they are. What is the best hypervisor to use to solve this problem?

Answer 1

I think that using fake raids is dangerous for life, that is, data ... It's better to install at least the simplest LSI hardware controller, on which you can install both xenserver and ESXi. You can use md on xenserver, there was a post on habré how to do it, you can build a server for virtualization yourself, for example from centos and XEN (if you have a lot of time) and make a raid there using md. If there is no controller, then I just put wd re on one screw not in the raid and reserve backups at the virtual machine level and at the system level. It's faster to recover.

Answer 2

I use a scheme with a hardware raid with an external card (which can be purchased or changed, it is advisable to keep exactly the same in stock, in which case it would be painless to change for the raid) and a separate disk for backups for every fireman, not in the raid. By means of the hypervisor, backups are added there. In case of any problems, we have the advantage of fast migration / recovery of machines. I agree with Argenon (thanks, I helped with XenServer more than once).
In case of malfunctions in the built-in raid controller, you can’t quickly change the motherboard =) And with a soft raid, who knows what you can stir up ...

Answer 3

Well, built into the mother and soft - this is essentially the same thing, but it's not the point. I agree, the hardware is best, but it is not there, but it should be "yesterday". Those. no time to buy. Suggest setting up CentOS + MD? The option is not the worst, but I don’t have the best memories of MD, how raids collapsed from an emergency reboot (they turned off the lights for almost the whole night at night, the oops died and in the morning I had good news).