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Re: [opensource-62] VM question

From: John F.
Sent on: Wednesday, November 28, 2012 6:18 PM
--->  Most likely you are ALREADY inside a VM if the host is cheap.
ALL "cloud" instances are VMs.
Don't stack VMs if you want *predictable* response curves.

Linodes are virtual machines (all some form of Linux), and are sold that way.
ie: for $25+/mo you get a small amount of RAM and disk, but that is enough to run one function like a web server, email server, etc. with all the benefits of VMs like cloning, hot backups to Fiber SAN storage, virtualized ethernet switching fabric across data centers in disparate cities, elastic front end load balancing, web control panel, etc.

Compare that instead to a dedicated box at $200+/mo where you REALLY do have 100% of the CPU's utilization and they just manage the hardware (the one box).  You do ALL the other work.

You may think $25 vs $200 = 8 VMs for break even but... you MUST factor in the cost of failure/recovery.  Linodes, et al., are very nice for the price.  A solid value proposition, meaning you get to go home on time instead of reloading the damn server...

On 11/28/[masked]:33 PM, mowgli wrote:
any cons to running VMs on a cloud instance or hosted dedicated server like linode or 1&1?  (vs running on your own in house hardware i mean.)

do VMs even work in the cloud?
are there particular features/functions that wont work?
are there specs/features you have to check for w/ the vendor/service?

i want to get 1 beefed up cloud instance w/ a ubuntu 12.04 image & root ssh access & run VMs on it (1 for zimbra server, 1 for webserver, 1 for voip/file server).  curious if this is feasible, drawbacks, other considerations my inexperience hides from me.

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