You have a IBM X3650 M3 host, with business critical virtual machines on it. What sort of hardware problems are possible?

Hi guys

I'm doing a document to prove that we need a cluster environment for our virtual machines, as we have only one IBM X650 M3 hosting a load of virtual machines at our datacentre. There is no SAN either. All of the disks being used are internal on the actual X3650 which I believe we have around 14disks. I'm about to find out what sort of RAID has been set up.

I am making the documentation simple for board/management, but wanted to include 'what's wrong with his scenario' to show the sort of problems that could go wrong.

The current X3650 M3 has dual power supply, so that can't be a reason. Storage though may be an issue as if more than two disks die, we would lose all virtual machines that are business critical.

What other possibilities are there? Faulty Ram? Motherboard dying? Faulty RAM?

Thanks for helping
Yashy
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YashyAsked:
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Dr. KlahnPrincipal Software EngineerCommented:
The argument is simple:  Single point of failure.  If this one machine goes down, everything goes down with it.  Doesn't matter what the failure might be, it's still a single point of failure and it would take days to get it back up and running.  Can the company tolerate that kind of delay?  Perhaps some can, but I daresay any company larger than 20 employees can not.

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Pierre MithamCommented:
You have a bit of a scary setup there.  Your argument is simple,  there is only one(1) server any failure will result in down time.  Loose network, all are down,  loose the MoBo- all are down.  loose enough disks - all are down.  ask them ( as its also an older server) if the server went south, would they be OK with being down for a week or more while you order replacement hardware and get it spun up??  even switching to something like the SCALE HC3 system might be a choice as it's less expensive than VmWare
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