Benefits for the ESXi4 on USB

Trying to weigh the pros and cons for a server Dell with ESX already installed on a USB key.

Is it faster? Is it less expensive? Less or more reliable than a raid?

IF the whole system op is loaded on startup, and the USB is not yet accessible?  and neither would the disc, which explains why you say that it only affects boot... is that correct?

Once the operating system has started, it turns into RAM and only accesses the USB key from time to time (I think it's once in an hour) to update its configuration.

Right now I'm just a server with a raid configuration.  I was about to do two 70 GB for the op sys...

I wouldn't do. Instead I would spend the money for either a good RAID controller with battey write cache supported (for a much better drive performance) or buy a 300 GB HARD drive, in case you plan a RAID5 (3 disks is the slowest configuration, due to operation RAID 5)

Create a RAID with all disks and split them into two logical volumes. Volume 1 ~ 10GB (for the OS and a small store of data for example ISO images) and Volume2 for use as a VMFS data store.

However, my ultimate goal is to have two separate servers, sharing a MSA (using SAS) or SAN, in a redundant configuration.  In this case, I think it would be wise to get the USB now, and then remove the 300 GB drives (and maybe even the raid card), then put the disks in the storage unit.  Any comment?

This is a possible way to go. In this case you would save the time to reinstall the hypervisor, once you get the MSA. However, for the time until you get the MSA, I prefer the solution only disk and do a new installation later (it usually does not take very long).

André

Tags: VMware

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