Hard Disk Parity Error
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What Is Parity Bit
Networking Startups Tech & Work All Topics Sections: Photos Videos All Writers Newsletters Forums Resource Library Tech Pro Free parity computer definition Trial Editions: US United States Australia United Kingdom Japan Membership Membership My Profile People Subscriptions My stuff Preferences Send a message Log Out Data Centers Picking apart parity problems What you what is parity in raid 5 don't know about parity errors can hurt you. So, while a fundamental understanding of the different RAID levels is good, knowing how to diagnose and prevent parity errors is better. Scott Lowe teaches you both in this Daily Drill Down. By Scott Lowe MCSE | May 17, 2002, 12:00 AM PST RSS Comments Facebook Linkedin Twitter More Email Print Reddit Delicious Digg
Parity Computer Science
Pinterest Stumbleupon Google Plus Anyone who has worked with RAID (redundant array of independent disks) has heard the term “parity.” While most IT pros understand the general concept behind the word, many would be hard-pressed to define exactly what parity is or how to fix problems associated with it when they occur. Parity is a form of error correction commonly used in certain levels of RAID and works to reconstruct data on a drive that has failed in an array. In this article, I will be focusing on parity problems commonly associated with RAID levels 3, 4, 5, and 6. The remaining RAID levels either do not use parity or are not as commercially viable as levels 3 through 6.First, a lesson on the different RAID levelsDifferent levels of RAID make use of physical disks in diverse ways. Each RAID level that supports error correction (parity) uses the capability in different ways as well. Table A explains these differences, as well as what can happen when a drive or drives in a RAID array fail.Table A Common name Parity used Description Array's capacity Data reliability Minimu
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Technology - unRAID Server Community » Community » Hardware » Hard disk error messages in syslog. Parity errors detected when checked. « previous next » Send http://lime-technology.com/forum/index.php?topic=4800.0 this topic Print Pages: [1] Go Down Author Topic: Hard disk error messages http://www.bleepingcomputer.com/forums/t/353897/harddrive-parity-error/ in syslog. Parity errors detected when checked. (Read 3981 times) Joe L. Global Moderator Hero Member Posts: 18900 Hard disk error messages in syslog. Parity errors detected when checked. « on: December 03, 2009, 07:16:31 AM » This was initially posted in the 4.5beta12 release thread, but it had nothing to do what is with the new release, so it is continuing here:Quote from: madshi on December 03, 2009, 05:36:05 AMI'm having some problems and I don't know if they are related to beta12 or whether they are related to a few new harddisks I added in during the last couple days. Basically adding in the new harddisks seems to have worked and everything seems to be fine. But what is parity today I started a parity check and it showed 4 errors right when it started. So I've checked out the syslog and found a few things that worry me. Here's the full syslog:http://madshi.net/syslog.txtCode: [Select]Dec 2 13:09:01 Tower kernel: ata10: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
Dec 2 13:09:01 Tower kernel: ata10.00: ATA-7: SAMSUNG HD154UI, 1AG01113, max UDMA7
Dec 2 13:09:01 Tower kernel: ata10.00: 2930277168 sectors, multi 0: LBA48 NCQ (depth 0/32)
Dec 2 13:09:01 Tower kernel: ata10.00: configured for UDMA/133
Dec 2 13:09:01 Tower kernel: ata10: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0xf t4
Dec 2 13:09:01 Tower kernel: ata10: hotplug_status 0x2
Dec 2 13:09:01 Tower kernel: ata10: hard resetting link
Dec 2 13:09:01 Tower kernel: ata10: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
Dec 2 13:09:01 Tower kernel: ata10.00: configured for UDMA/133
Dec 2 13:09:01 Tower kernel: ata10: EH completeIs that "exeption" supposed to be there? Same thing for ata11 and ata12. And then I have 6 exceptions like these, all for ata8:Code: [Select]Dec 2 16:24:07 Tower kernel: ata8.00: exception Emask 0x10 SAct 0x0 SErr 0x780100 action 0x6
Dec 2 16:24:07 Tower kernel: ata8.00: irq_stat
List Welcome Guide More BleepingComputer.com → Hardware → Internal Hardware Javascript Disabled Detected You currently have javascript disabled. Several functions may not work. Please re-enable javascript to access full functionality. BLEEPINGCOMPUTER NEEDS YOUR HELP! BleepingComputer is being sued by Enigma Software because of a negative review of SpyHunter. A case like this could easily cost hundreds of thousands of dollars. If we have ever helped you in the past, please consider helping us. To learn more and to read the lawsuit, click here. CONTRIBUTE TO OUR LEGAL DEFENSE All unused funds will be donated to the Electronic Frontier Foundation (EFF). If you accept cookies from this site, you will only be shown this dialog once!You can press escape or click on the X to close this box. Register a free account to unlock additional features at BleepingComputer.com Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site. Click here to Register a free account now! or read our Welcome Guide to learn how to use this site. harddrive parity error Started by GA_crazy_shamz , Oct 15 2010 12:04 PM Please log in to reply 3 replies to this topic #1 GA_crazy_shamz GA_crazy_shamz Members 47 posts OFFLINE Local time:02:36 PM Posted 15 October 2010 - 12:04 PM Hey guys,Lately, I've been getting a hardware malfunction blue screen. It's started to come every 5 minutes now and it wont go away unless i turn off my computer (using the power button). Looks like this:I'd really appreciate any help. I dont know what the problem is.Thanks! Back to top BC AdBot (Login to Remove) BleepingComputer.com Register to remove ads #2 Broni