Ask Slashdot: Little Boxes Around the Edge of the Data Center?
First time accepted submitter spaceyhackerlady writes "We're looking at some new development, and a big question mark is the little boxes around the edge of the data center — the NTP servers, the monitoring boxes, the stuff that supports and interfaces with the Big Iron that does the real work. The last time I visited a hosting farm I saw shelves of Mac Minis, but that was five years ago. What do people like now for their little support boxes?"
I make them with ticky tack.
Give me Classic Slashdot or give me death!
Virtualized NTP is about the dumbest thing I've read on /.
Yes, worse than various conspiracy theories and fanboi wars.
Last generation's compute nodes. We keep some around for utility functions after decommissioning a large cluster.
Go get a GPS satellite receiver/time server. Actually, get two. Don't screw with time.
THEN, virtualize the rest of the stuff. Monitoring, syslogging, management, patchers, etc.
We've virtualized everything except for
- a Windows DC so that it stays up if the vmware datastores or SAN eats itself in a horrible way.
- The NIS server we have to use on our UX environment due to an ancient regulation. I'm not willing to put up HP-UX VMs for this right now, otherwise it'd be safe in a VM as well.
- Anything we can't virtualize due to licensing/contract/support issues. So our VOIP environments, phone call recording, access control systems for the doors,
My datacenter is getting a lot nicer to look at, and a lot easier to upgrade. I can shift servers or volumes all over the room so I can do live maintenance during the day.
My mom says I'm cool.
Those support tasks don't exactly push hardware to its limit, and most of those tasks are the kind of thing that demands a bunch of redundant servers anyway.
Throw a bunch of "last generation" hardware at the task -- stuff from the "asset reclamation" pile. Leave a few more around as spares. Less disposal paperwork. Works just fine. By the time your last spare fails, you'll have a new generation of obsolete hardware.
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To be fair, if someone cares enough about time accuracy to understand why that's a dumb idea, they should probably be using a GPS receiver instead of a PC.
NTP server is all about consistency. If it's running in a VM and can be delayed at the whim of the host, do you think it's going to be a very good source of time?
If you can't run it on your iPad, it's probably not worth running.
--Management.
rewriting history since 2109
...I don't want it in my datacenter. If you have no budget for non-revenue-generating boxes for services like DNS, NTP, etc. then upgrade the server hardware you tore out of production after the last upgrade cycle with SSDs and low-wattage processors & put it back into service for your internal needs.
Otherwise get a few Dell R210s or some other small cheap rack server with an IPMI 2.0 BMC and get on with your business. Any money saved by buying "mini-PCs" (or whatever you want to call them) for any datacenter computing hardware you plan to rely upon at all will be burned the first time you have to drive to the datacenter and physically babysit some cheap machine because it didn't have IPMI.