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Old 12-20-2004, 02:54 AM   #21
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Default Re: Come One, come All!!!

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Actaully, there are several different types of RAID (randomly accessed inexpensive drives). The ways in which each works in unique to its number (aka 1, 0, or 1-0, or 0-1). I will only discuss RAID 0 and RAID 1 here. Do a google search for the other types of RAID (2, 3, 4, 5, 6, 7, 53) Those are pointless here, so I will not discuss those, as stated earlier, at all.

The algorithm behind RAID is not as advanced as you may think, but you have to understand the RAID mechanism in order to be able to choose the best RAID settings later. The first RAID mode (RAID 0) is called stripping and it offers improved performance but no fault tolerance. The main problem of the storage interfaces today is not the peak bandwidth offered by storage electronic part but the latency and real bandwidth limitations of the mechanical device.

RAID 0 is based on idea to write/read data from multiple harddisks at the same time. The controller strips a file in smaller fragments of the user defined strip size and sends the fragments to every harddisk in the array. Supposing that you configure the controller to use a 32Kb strip size and you deal with a 256Kb file and you have two harddisks in the array every one of them receives simultaneous 4 fragments. The performance is increased since two harddisks work for the same job. Theoretically you get twice the speed of a single harddisk, but you can go even further if you use four or eight harddisks. RAID 0 is the fastest from all RAID setups and it's the reason why most people buy a IDE RAID controller for home. A special attention must be paid to the strip size. If you choose a strip size of 1Kb and you deal with large files the performance may be lower than if you have used a single harddrive. That's why controllers allow you to choose the size of the strip; it's different for every application.

It's strongly recommended to use identical drives because otherwise the performance gain is not big, the controller has to wait for the slowest harddisk to finish the operation. The total space available to the user is the sum of the disks in array.

RAID 1 stands for mirroring and uses two harddisks for fault tolerant systems. The controller duplicates the file and writes it down on the two drives in array. The performance is lower because the controller has to do the same thing twice. The data is always the same on both disks, except for the case when a failure occurs. Pay a special attention that the drives are better to be equal because the total space available to the user is equal to the size of the smallest drive in array. If you have a 10Gb drive and a 20Gb drive the space which can be used is 10Gb.

RAID 0+1 is a mode which supports both stripping and mirroring. You will need four harddisks since two of them are used for stripping and the other two for data mirroring. This mode is really only for servers, and the most popular RAID configuration is from RAID 0. RAID 1 is mainly used in specific jobs, and storage servers.

Hope this LONG explanation helps all who need to know about RAID. Now if you excuse me, I need to go dip my fingers in cold water, being that they are in flames after typing this.


VERY INFORNATIE!!
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Old 12-20-2004, 02:56 AM   #22
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LOL, thanks. Cool site btw. Play nice guys I got to go to bed. So please be nice so David and the others wont have to waste their time editing things.
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Old 12-20-2004, 03:03 AM   #23
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Default Re: Come One, come All!!!

hey that post up there bout the aruguing was amd zen not me ok. im getitng tired of this site. tired of this shit and making me go balllistic over it. tired of my freinds getting flamed, tired of bullshit about this vs that. tired of growchy people. tired of this dull site and lack of motivated smart people who aren post whores and such tired of people being blunt and catty. tired of people liek amd zen who know what thier tlaking about get yelled at by people who just want to fight int eh first place. really. and ive seen total assholes on here. not just to me but other memebers. making fun of them.

why dont they be disabled and find out what its liek to be picked on??


if this forum dotn shape up itll be the lasst of me.
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Old 12-20-2004, 03:04 AM   #24
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Default Re: Come One, come All!!!

and don't arugue with traceroutes!!! eveyrone here has and no

DAVID DOTN HOST THIS AT HOME!!!
plain as day. quite as nite.

hes at ev1's D/C!!!

how many times have I said this!!
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Old 12-20-2004, 03:13 AM   #25
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hmm.. who are these members you are talking about, I know Gian would be one any others?
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Old 12-20-2004, 03:13 AM   #26
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Default Re: Come One, come All!!!

You are unbelieveable , and you suck up to David. Cut it out! You are a mean person and kicked off AMD just because he was telling the truth about CF! What kinda shit is that? Bullshit is what that is. Airiox, you and the other MODs except for Kalthorn are evil, name calling, insult making jerks who need to get a life!
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Old 12-20-2004, 03:16 AM   #27
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wow... who is being mean now?

He had already been banned, i had to ban his alter ego. I dont suck up to david. I have hardly even spoke to him.
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Old 12-20-2004, 03:17 AM   #28
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Default Re: Come One, come All!!!

Quote:
Originally Posted by athlon64fx
http://pcthisandthat.cjb.net/

is my site and thats all

why dotn you all figure it out. this site is dull boring and just a fllame house....
That forum is dull.. that site is dull. You are dull.
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Old 12-20-2004, 03:17 AM   #29
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Default Re: Come One, come All!!!

Im not being mean, im being truthful.
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Old 12-20-2004, 03:18 AM   #30
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lol I am feeling all alone here. and Gian comes to cheer me up.
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