I am wishing for help and advice deciding what type of hardware to purchase for a 30TB server. It must meet the following requirements:
� 30TB RAID (Redundancy important for backup purposes)
One thing you should consider is that using a RAID array is not a backup strategy. A RAID array will help guard against a failed hard drive though at the expense of increased overall risk.
Individual hard drives have a probability of failure that is expressed as a "Mean Time Before Failure" (MTBF). Typically the MTBF for a hard drive is in the thousands of hours (eg MTBF = 500000 operation hours). With a single volume stored on one hard disk then the volume is dependent on a single hard drive so the MTBF for that volume is equal to the MTBF for the hard disk. With a volume stored on a RAID array the volume is dependent on some number of hard drives. With every additional drive in the RAID array the probability of a hard drive failure in the array increases.
With the right RAID levels you can guard against these hard drive failures and provide recoverability of the data. But being able to recover the data by rebuilding an array is not a backup strategy. RAID will also provide much faster average data rates than the bare storage media will provide. (This was the original motivation for developing RAID approaches.)
If you have 30TB of data that you care about then you might want to consider a backup strategy that will protect against:
Designer Wallpaper fromMm. I like their chow-fun. :D
I like the Dragon's Breath -- so watch out! ;)
Trove Wallpaper DesignYa I'm going to rate this as a negative. The more people that start using macs, the worse everything is going to get (hw/sw quality, viruses)
this designer wallpaper.Spot-on commentary.
PR nightmare for a company that likes to cultivate its image.
These designer wallpapers areSuperJudge
Mar 9, 08:10 PM
Not in front of a Mac, so here's a shot from my T60p running Maverick Meerkat.
http://i159.photobucket.com/albums/t150/analogheretic/marchdesktop.png
I believe, for a server, it offers much more. I think it has redundant power supplies, lights-out operation and includes Mac OS X server. Since you obviously don't need those things (since you see no value in them) I don't know why you would want one.
Keep in mind, other than OS X server, things like that redundant power supply are cost extra options.
For someone like me, I was thinking of purchasing 2 of these things, however, cost really is a factor for me here. My primary application is a render node for computer graphics. Problem is, for the price the XServe costs with 2GB memory and a 2.66GHz dual processor system, I can get a Boxx render node system with the a 3.0GHz configuration and OpenSUSE 10.1 for for less. As much as I would like this system, I'll have to pass for now until I am ready to put together a SAN.
EDIT: Heck, for the configuration I really want, it is over $1000 more for the XServe as opposed to the Boxx rendernode.
Nickygoat
Sep 11, 07:45 AM
We have been forsaken. :(
All out for 367. Almost like an old England collapse at the end ;)
Kinda worried what McGrath and Warne will do to England in these conditions, but bring it on :D
Talk about unfeasbile. I'm not sure any of the claimed statements here about economics have any connection to reality.
Can you explain why no ink, no paper, and no army of delivery guys would still cost the same as digital distribution? Even with Apple's 30% and the bandwidth cost of shipping thousands of 10mb magazines, it'd still work out cheaper for users and make a profit for the company.
Oh how nice, instead of AT&T doing the work themselves they are having us do it for free.
**** you AT&T
Since you are the one having the problem, submit the report. they can send technicians all over the country and they may not experience problems in the same areas, but if you can pinpoint it for them it may be easier for them to fix the issue.
its especially nice since it pinpoints the spot on a map for them. there are spots that i sometimes have issues, but say 500 feet away its fine. not saying we'll see improvements overnight, but definitely a step in the right direction as far as I'm concerned.
Remind me to disbar you from being on the jury at my trial. You cannot possibly hold that this lunatic was justified in his actions.
I'm with Tomorrow on this one.
It sounds like they both share responsibility. He was trying to get away from an argument. She escalated the situation by jumping on the car (:eek:).
Should he have stopped? Yes. Which is why he shares some of the blame. But she put herself in harms way in the first place. She should have just let the guy drive away.
