Raid 0+1 File Corruption (solutions?)
Reply rolf says: July 26, 2015 at 4:21 am another problem with RAID: even the most elegant pre-configured solution in the market, Drobo, has tremendous risks, as famous photographer/author Scott Kelby RAID 0+1 gives the best of those worlds, but is a bummer on the number of disk you need to implement. 2 0 Tony Roslund - June 3, 2015 David Staggs Reply Pete Marovich says: November 17, 2016 at 10:46 am Time Machine should only delete the oldest backups first. RAID volume might be corrupted and becomes not accessible when the hard drive has bad sectors. Source
Why Is Raid 1 Not A Substitute For A Backup
To me that just screams twice the amount of data loss. Here's the rundown on popular RAID levels: •RAID 0 is used to boost a server's performance. Chan says: September 16, 2015 at 2:36 pm Thank you. TechSpot Account Sign up for free, it takes 30 seconds.
- share|improve this answer answered Jun 4 '10 at 2:09 community wiki David Cary Any chance you could give an answer for this one....
- That backup is no good.
- The idea behind archiving is to take that material out of your system and putting it somewhere safe.
- Many require all drives to have the same capacity.
puzzled says: August 17, 2007 at 1:31 am In the HP ACU page, I see on our array two disks, labeled as RAID 1+0. If we are shooting video, we tend to backup data every 30 minutes and copy cards to one of these RAID 0 systems, which is then cloned using Carbon Copy Cloner Reply dan says: November 17, 2016 at 3:44 pm and usually it does, but once in a while it starts over from scratch. Best Raid For Backup Last night I was using the drive(s) (which was nearly full) when i began to experience file corruption errors when trying to access numerous files scandisk ran after reboot detecting various
says: September 7, 2011 at 9:16 pm One additional ques: I assume RAID 5 is the same as RAID 4+1? Could I ask what cloud service you are using? Accidental errors like incorrectly deleting a file or misplacing it or data corruption are more common and a bigger worry. http://superuser.com/questions/112683/does-raid-1-protect-against-corruption These systems feature multiple SSD or SATA drives, depending on the RAID configuration.
With 2 disks, selecting RAID 1+0 effectively gives you a RAID 1 set. Raid 5 Backup It is the BACKUP not the work disk or the system disk (these are on two separate drives). However, it is NOT a whole backup solution. This software enables you to recover data from RAID 0, 1, 2, 3, 4, 5, 6 in all data loss situations.
Raid Backup System
It's important to remember that RAID is not backup, nor does it replace a backup strategy—preferably an automated one. her latest blog RAID protects the physical drives from failing, and resulting from data loss. Why Is Raid 1 Not A Substitute For A Backup So often I hear horror stories of photographers losing images or irreplaceable data from crashed hard drives. Raid 1 External Hard Drive Mein KontoSucheMapsYouTubePlayNewsGmailDriveKalenderGoogle+ÜbersetzerFotosMehrShoppingDocsBooksBloggerKontakteHangoutsNoch mehr von GoogleAnmeldenAusgeblendete FelderBooksbooks.google.de - Advanced Coverage for Experienced Exchange Administrators Microsoft Exchange Server 2003 24seven doesn't try to take you back to square one.
Its interesting to learn something that is quite different from that of others. http://hcsprogramming.com/raid-1/raid-1-hdd.php It should not be used for mission-critical systems. We have this drive hooked up to a Mac Mini server that everyone can access through the network. RAID gives redundancy, IT IS NOT a backup. Drobo System
Enterprise class disks are less prone to this problem: http://www.lucidti.com/zfs-checksums-add-reliability-to-nas-storage Reply Len Rein says: March 24, 2015 at 5:16 pm Questions: Q1 a&b: What is is the problem with Raid-1 using They are extremely well made, very versatile and I have heard so many positive experience reports and few bad ones. It's a big misconception and gives a false sense of security about your data. http://hcsprogramming.com/raid-1/two-raid-0-and-one-non-raid-drive.php This is the specific purpose of mirroring.
You can preview files after scanning and then save the lost data to another drive. Raid Backup Software Had local drives fail, but the Raid saved my ass every time. Job done Reply Paul says: July 25, 2015 at 11:06 pm Very helpful info - thanks.
I will appreciate your answer as I plan to purchase a Western Digital "My Book Thunderbolt Duo 4TB Dual-Drive with RAID" to replace an older 2TB "Iomega Companion for Mac' that
That way, if you accidentally delete a file from your main drive, you can go get it from your raid1 backup device. What's the purpose of earpiece Agent Smith is wearing? Feb 9, 2005 #1 (You must log in or sign up to reply here.) Show Ignored Content Topic Status: Not open for further replies. Why Raid 0 Is Not An Option For Data Protection And High Availability There are many different types of RAID configurations: RAID 0: Its primary purpose: faster performance.
My HDD occupied with the same SATA3 interface and I have been getting not more than 50MB/s while copied a file from one logical drive to another since the date of With RAID6 two disks can die simultaneously. Hard drives implement their own data integrity tests and checksums which they use to spot bad sectors, but the algorithm is designed to be fast and compact, not thorough, so errors http://hcsprogramming.com/raid-1/raid-0-to-raid-0-1.php Reply RAJ says: February 4, 2016 at 5:43 am I agree and also disagree with "Never use raid as your backup system" 1.
Cameron says: May 1, 2016 at 8:10 pm If you are getting poor performance on a Sata 3 controller, it's likely because your drive is only a Sata 2 drive. Violation of copyright is actively prosecuted. superuser.com/questions/736612/… –Mick Apr 2 '14 at 10:24 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign Check out YouTube videos on setting up a Synology, Qnap,… system - it is pretty straightforward.
To learn more, read the page on the best back-up policy. 17 January 2017 82 Comments » 82 responses to "RAID" Oliver Powell says: January 13, 2017 at 11:40 am Thanks I'm sticking to my three WD My Passport drives for now. I will take you through our entire workflow on how data moves through our studio. If a sector fails a checksum, the RAID controller compensates to repair it, or triggers a rebuild.
Issue with SFC and corruption. ALL RIGHTS RESERVED. Also if I would like to use this ext for Time machine, do I need to partition as well ? Sometimes disks in a storage system are defined as JBOD, which stands for ‘Just a Bunch Of Disks'.
RAID 0 is great for performance and when you want really large volumes, but not so great for data protection. Of course this drive would also have to be backed up. There is no overhead caused by parity controls.