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How to protect a flash-based hypervisor?

zeroARMY

zeroARMY

[H]ard|Gawd
Joined
Feb 22, 2003
Messages
1,195
Has anyone found any way to RAID or mirror or somehow protect a flash drive/device storing the hypervisor?

Cheap off the shelf flash drives work great with ESXi but they aren't very reliable. Once it's dead it's a pain to set everything up again.

This is how Dell does it:
delli.png
 
No need. Use the build-in command to backup configurations, in case of SD card failure, reinstall on new one and restore config.
 
The Dual version is only available on 810's and up. The single version can be added to 510's and up. (single SD part# is 341-8793) I think it's a $60ish add on.
 
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The hypervisor should be mostly disposable. Backup the config with the built in backup tools if they're available, or use host profiles / autodeploy :)
 
the vCLI... vicfg-cfgbackup.. is the best way to backup an ESXi hosts's config which can also be loaded back to the host quickly. Host profiles do not contain ip addresses, hostnames, or other host specific details like that.

I've never tried to load a config with the free key applied, but you should be able to do that in eval mode prior to assigning a license key to the host. No big deal since you have to at least get ESXi reinstalled and the management network initially configured. I just verified you can save the backup file with the free key applied.
 
lopoetve said:
The hypervisor should be mostly disposable. Backup the config with the built in backup tools if they're available, or use host profiles / autodeploy :)
Click to expand...

This. If your concern is the free ESXi then you can't really do a complex enough config that I can't replicate it in under 10 mins anyway.
 
NetJunkie said:
This. If your concern is the free ESXi then you can't really do a complex enough config that I can't replicate it in under 10 mins anyway.
Click to expand...

^
This

Only in a few shops have I done complicated enough configurations that I would need a backup to restore from.
 
dd the entire drive to another card or USB stick. That's what we did at work.

Though we ended up just installing it on the spinning disks. They were in the servers and basically spinning for nothing. We started getting issues, guess due to flash degradation, so we just put it on the hard drives. raid 5 was kinda overkill but w/e lol. The 3 sas drives came with the servers.
 
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