What is RAID hosting?

Philippe Gaucher

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Can any one explain me what is RAID hosting? and how can I use it? is this type of hosting still existing in the market?
 

VirtuBox

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RAID (redundant array of independent disks) is a data storage virtualization technology that combines multiple physical disk drive.
Almost all Hosting providers are using RAID storage because it provide better performances, and reliability (fault-tolerance)

You can use it if you have your own dedicated server, if not that's your hosting provider job
 

LJSHost

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Hi Philippe,

Raid data protection is more or less standard these on shared, VPS and reseller services.
Even if you have a dedicated server with no raid controller it's common practice to have a 2 drives mirrored for fail over protection.

@philipmaunes It's not 2001 anymore the use of raid technology should have little if zero impact on the price of a hosting product. If you require a dedicated server with it's own hardware raid controller this would be the only thing that bumps up the price a little.
 

VictorVictories

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RAID Hosting is that hosting in which one's website and email data are spread across many disks, using procedures such as disk striping (RAID Level 0) and disk mirroring (RAID level 1) to attain redundancy, lower latency, higher bandwidth for reading, writing, and recoverability from hard-disk crashes.
 

bestcast4u

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RAID is a technology that uses two or more disk drives cooperating to improve server perfomance. This can be used in many applications to ensure content is consistently if one disk so happens to fail.
 

bestcast4u

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Forgot to add : RAID is not a replacement for making backups, however.
 

NuWebHosting

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It's kinda like Cloud hosting for backups it's across multiple disks as opposed to just one, everything peaks out within one single environment, even if you haven't reached the maximum yet. Hence the processes spread across multiple uses less resources and increases speed.
 

AlbaHost

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If you are using raid, do consider data backup every day for security reason.
 

Philippe Gaucher

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AlbaHost

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AlbaHost
Raid arrays fail often that's why you need to have backups.
 

rshosting

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rshosting
It is always good to have offsite backups. RAID arrays do fail but it also depends on the type of RAID and make of RAID card used. For example software RAID are more likely to fail as compared to Hardware RAID. Also if a reputable hardware RAID card is used it will add to the reliability of RAID. Few other factors such as RAID10 (with a minimum of four drives) is always better than RAID1, but this does not mean RAID10 will never fail.
 

belinda

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RAID means having mirrors as fail over protection.

There are different RAIDs such as RAID 1, RAID 5, RAID 10 etc. The number of mirrors are different for each of the RAIDS.
 

iserveradmin11

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Hello,
I would say that RAID itself is a wonderful technology, which need to be explored to greater extent.
But if it comes to backup we can not rely on it completely.
Though it is designed so that data remain usable when drive fails.
But backup as totally different from this concept as we need surety for it.
Hope you got my views.
 

HyperVMart

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RAID is great but not enough, many enterprise DC's make their data redundant those ways:-
Using RAID1,5,6,10,50,60,51,61 *last two if you were really obsessed with protecting your data*
Creating Failover clusters (mirroring an entire server to another in case the whole server crashes or goes down)
redundant power supplies, PDU's and power sources, in case single PSU fails in the server theother takes over automatically, if one power distribution socket fails (it happens sometimes) the other will take over automatically, and connecting to TWO power cercuit sources,
furthermore large businesses that can afford it setup a whole redundant Datacenter (preferably in different country) in case the first DC entirely goes darl, a second Disaster Recovery DC takes over,
adding to that its a good idea to take backups both on site and off site, as your server is a single point of failure (your mother board can fry, ur raid controller can die assumably corrupting all your data no matter what raid topology ur using and the entire server may die for one reason or another, so if u have on site or off site backups u still got the chance to restore your data in the unlikely event (but possible) of your server dying on you, whats great though you can establish daily on site and offsite backups in number of ways using many free software, also IF you are collocating your own server you need to keep spare hardware in case some of your hardware goes bad, to minimize downtime, that's something u dont have to deal with if you have a dedicated server and your DC will fix it for you usually in very little time...

good luck protecting your data !...
 

mekath

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RAID stands for Redundant array of independent disks, is a method where same data are maintained in various places on multiple hard disks
 

racksandcloud

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It is not hosting, RAID is a technology that is used to increase the performance and/or reliability of data storage.

superior performance
improved resiliency
lower costs

There are many raid level, raid0(stripping) gives more write speed and read speed. Raid1(mirroring) provides data redundancy and more read speed.

RAID 0 striping
RAID 1 mirroring
RAID 5 striping with parity
RAID 6 striping with double parity
RAID 10 combining mirroring and striping

All RAID levels except RAID 0 offer protection from a single drive failure. A RAID 6 system even survives 2 disks dying simultaneously. For complete security, you do still need to back-up the data from a RAID system. RAID is not solution for back-up.
 

AlphaNine Vini

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Raid 10 is best for server configuration. Yeah even its Raid 10. Its possible you could loose data in case of disk failure. But there are less chances.
 

casualhost

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RAID 0 = imagine 2 hard drives, sharing half of the content equally. So if one hard drive fails, only half the data is lost ( EG. first 100 mb in disk 1, second 100 mb in disk 2, third 100 mb in disk 1, fourth 100 mb in disk 2 and so on )
RAID 1 = 2 hard drives, with the same data. This means if one fails, you still have the data.
RAID 10 = 4 hard drives, SAME AS RAID 0, but u have 2 of each RAID 0 hard drive, so its RAID 1+0, geddit :D?
 

WhiteVM

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Its simple to understand:
Raid takes a disk and host data on other disks, like a "backup server".
The idea of Raid is to make a "Cloud", when one of the disks going down, the other still working and provide you 0% downtime.

BUT raid changes to other ways of use, the most popular is: Raid10 (1+0) and Raid-1 , Some of the companies use Raid-5.
People already told about the raid ways but some thing you must to know:
Raid-1 is an mirror, if you are using software raid, one of the disks is the main, so if he go down you need to config the 2nd disk to be the main disk.

Raid-5, If more then 1 disk go down, the raid is broken, and you need to fix the issue, most of the companies ( Like us ) use an offline disk in the Raid-5 to make sure if 2 disks go down, so the offline disk start working and make the Raid still working :)

Raid-10: Raid 10 is the most Popular Raid in big companies, BUT its takes alot of disk space in the Raid storage, so i prefer to use Raid-5 and not 10, but 10 gives you a good load balancer on disks so....
 
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