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RAID Problem


kernel.org. 2013-10-05. A Failure of the RAID controller. For example, if a piece of data (e.g. Back to Top 5. this contact form

I'm sure the cost of your service calls means you want things to work all the time, the flip side is, instead of telling your clients why one thing or another Using the Intel Matrix Manager in the Operating System Rebuilding RAID1 You can manually rebuild the computer's redundancy mirror to the Hard Drive by Clicking the Start button. To make a vast simplification of the issue, there are two main factors in disk performance: access time, and throughput. If you have anything to add, please email me!

Raid 5 Failure

Those are the only two real justifications for raid. Tags: RAID Data Recovery RAID Diagnostics RAID Recovery Explained About secureadmin View all posts by secureadmin → ← Western Digital My Book Problem Question and Answer Exchange Data Recovery Guide → There are cards that you have to tell them to do a rebuild.

The data is broken up into slices (say 16) that are spread across multiple arrays in several locations. VIDEO (6:21) Rob Peglar on Reducing the Granularity of the Fault Domain What About Dispersal? However, I do have a background in engineering, and it appears to me that you've both left out an important component. Raid Array Failure Does this change what's reported?

The TX2200 I moved to my wife's box, with a pair of WD100 0JBs, has been operating for *four years* without a failure of any kind.) OK, these are dedicated, hardware, Raid 0 Failure I didnt do statistics at University but i wonder a few things.As kind mentioned if you flip a coin two times its not guaranteed you are going to get 1 head The data has been corrupted and now every picture can never be seen again. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization.

There are other cards that store it on the card with read/write PROMs. Raid Controller Failure Symptoms I put the drive back in, and it's rebuilding, but the problem is it takes forever and I'd rather just reinitialize and reformat, since there's no real data on the drives. dtnjt84 2015-10-24 03:40:00 UTC #18 Bjcreative's post helped. That pressure inevitably means that RAID must evolve into something new and possibly unrecognizable, just as the dinosaurs evolved into birds.

Raid 0 Failure

New requirements are emerging to support huge distributed data farms, and more efficient techniques must be adopted to support future apps. Posted on 2012-07-16 00:59:25 Chris Collins Its about making the right decision.Personally I will never use raid5 or raid6 they are over complex forms of raid and are prone to a Raid 5 Failure My stats are in failures per year, and those stats are in hours per failure, it is just an inverse number with different units. Raid 5 2 Disk Failure I have now managed to get it working again, and have been pulling my data off it as I will be replacing it now.

When it comes to software RAID and integrated RAID support on motherboards and I'll agree that if you're seriously considering RAID get the right stuff. http://puchinet.com/raid-5/raid-5-help-please.php Retrieved 2013-12-25. ^ "Main Page - Linux-raid". Tomshardware.com. What is not understood is that the speed benefits are dependent on the type of disk usage. Raid 5 Failed Drive Rebuild

Does it? Failure of one of the RAID member disks; Failure of several RAID member disks; Other RAID failures not associated with the member disks (operator error or controller failure). use privacy settings to control who sees your info . navigate here publish tips .

Allow me to suggest that if it was then neither you nor Western Digital could conduct business...;) So what *is* the risk that *a* drive will fail, regardless of how many Raid Drive Failure The point is advanced techniques already exist that can be adopted in enterprise IT settings. At one time I ran my office workstation on a RAID0 array.

In fact, if we try too hard to talk them out of it, we end up losing the sale!

Posted on 2008-05-30 14:42:31 SergeantMajor15 I was just wondering...why do people use raid when they can just get one big hard drive? Like I mentioned before, not a huge difference running the OS and apps. Retrieved 2006-12-31. ^ Frank Hayes (November 17, 2003). "The Story So Far". Raid Definition Disk Array is 1+1 and so forth.If failure rate is 3%.

Having noted that people had reported issues around WD utilities needing to be shut down in Activity Monitor etc I decided to just uninstall the WD Utilities package, for good measure Please fill out this form or call us Call: 866-438-6932 Name*CompanyEmail* Phone*Faulty Media*Hard DriveRAIDServerSD CardThumb DriveTabletPhoneOtherMedia Size*0GB - 1TB1.5TB - 2TB3TB and upSituation of Failure Products Learn & Develop Support USA If a RAID volume is not rebuilt correctly, it can cause problems in accessing data or may even cause a complete system breakdown. 4. his comment is here Posted on 2007-06-22 10:09:08 BobH OK, I'm not nearly skilled enough in mathematics to argue whether the correct method of calculating this is to use the complement or to use the

The capacity of a RAID0 volume is the sum of the capacities of the disks in the set, the same as with a spanned volume. Just because a drive has a 1.72% chance of failure doesn't mean with 2 drives you have a 3.44% chance of having a drive failure. My options are to click on run wd drive utilities which i uninstalled... It is an exciting time for storage specialists if they have the business acumen to match new models of data protection to requirement.

ACM Computing Surveys. 26: 145–185. This problem can be especially damaging if your data hasn't been properly backed up. Linux.Die.net. Retrieved 2015-01-18.

Take any introductory statistics course and you'll learn that the probability of an *OR* event is the sum of the probabilities of its component events minus any overlapping probability between component Some of the Microsoft desktop operating systems support RAID. Not sure if it started completely on its own or if I actually did something, but the drive had been working for many many months until now. Wikibon believes that the IT industry should be working together to develop the necessary architectures and standards before government agencies mandate them.

You're right that looking at MTBF is another way of approaching it, but it is just another way of saying the same thing. If a drive goes bad I can just switch to the other one. Therefore, larger-capacity drives may take hours if not days to rebuild, during which time other drives may fail.