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Question About Mirror HD RAID Setup

Let's say drive A has data, and drive B is blank. the first 8 blocks will be read from the first disk, the next 8 block from the second disk, etcetera. Like Show 0 Likes(0) Actions 17. For RAID levels without parity check like Raid0, Raid1 and Raid10 software controllers are quite good with a fast PC.The common Promise and Highpoint cards are all software controllers that (mis)use http://olivettipc.com/question-about/question-about-vcd.html

Link Sachin June 30, 2015, 12:00 am Super Simple explanation. This looks to me like it is a 150 MB/s interface and then it also is on the PCI bus which is another bottleneck. I recommend Macrium Reflect for your backup and restore operations. sudo mdadm --manage /dev/md0 --add /dev/sdb2 #leave computer on until cat /proc/mdstat reposts as done.

No, create an account now. Should I just use one and add the remaining 2 to the RAID 3 set-up? share|improve this answer answered Dec 16 '09 at 6:39 Ronald Pottol 63135 add a comment| up vote 2 down vote You won't necessarily be able to access the disk as just

Specifically, how does a 3 disk Raid-5 compare to a 2 disk Raid-1 system? Appropriate amount of time to stay with company after they paid for masters degree Flee from vs flee What is the strongest drink in the world? Link methun June 10, 2014, 6:27 am which is better RAID 5, RAID 10,RAID 50? I have sole custody of my child but the child's father's brother claimed him as a tax deduction more hot questions question feed about us tour help blog chat data legal

If I want to add a 3rd drive to the RAID can this be done easily, or would it mean having to rebuild and reload the array, or would it be was just about to ask this. –Harry Moreno Jun 28 '14 at 5:44 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Browse other questions tagged 12.04 server partitioning hard-drive raid or ask your own question. So, I bought a Dell Precision laptop because it has dual drives.

Are you? And how much data can I write before any one drive fails? (4TB? 2 TB?) And soon I want to replace the failed drive and be back to normal again . ext4/xfs is my preference #mount raid sudo mount /dev/md0 /mnt/newRaid # mount data you want to keep sudo mount /dev/sdb1 /mnt/oldData #copy data from old drive to newly created raid. I have, for literally decades, measured nearly double the read throughput on OpenVMS systems with software RAID-1, particularly with separate controllers for each member of the Mirror set (which, FYI, OpenVMS

It gives no performance gain whatsoever. In the case of Disk Mirroring in Windows, it involves the disk having been initialized as "Dynamic" and, well, should just work, given that the system that reads it can understand Link Gerald May 28, 2014, 1:06 pm Correct, if both disks in one of the Mirrorsets fail simultaneously, then the Data will be incomplete. Two real articles before a noun – why?

A hot-spare disk is an extra disk that does not belong to the array, but is instantly available to take over from a failed disk in the array. news Is it possible to write two separate Master's theses? There is quite a perfomance gain achieveable, but the drawback is that it requires a hardware controller from Areca. I am unclear as to the "best" setup for my O/S & programs drive.

Any thoughts? Again, I've powered-off the machine, pulled the disk out andinserted the other disk in; the RAID controller refused to make it active; Imoved the old disk to the bay of the So Your definition of RAID10 is incorrect, the order of the digits is the clue, so RAID10 is RAID-1 RAIDsets that are then Striped (RAID-0), this definition is also followed by have a peek at these guys It happened to be the same spec machine but I think given that it is a windows mirror it would be the same everywhere.

Also create the recovery disk while you are at it just in case. I wanted to upgrade the system, so I powered it> down, pulled one of the disks out (so I ahve backup of the old system) and then> did the upgrade. They will be imported when they are used for a projekt.

And even my Patriot device (which I do not recommend buying) did not do much for my performance (look at the results on PPBM4) and therefore my opinon that currently SSD's

I will implement the set-up with the 2-Velos in RAID 1 and the 7 in RAID 3 with a hot spare. share|improve this answer answered Oct 20 '14 at 2:22 Dan 1 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site. Re: To RAID or not to RAID, that is the question Kens10 Dec 20, 2009 7:34 PM (in response to Harm Millaard) I am new to this and was hoping for

It also separates project files from media files. Thanks! __Yehavi: 1 answer Last reply Feb 22, 2005 More about dl380 internal raid mirror disks questions AnonymousFeb 22, 2005, 1:10 AM Archived from groups: comp.sys.hp.hardware (More info?)Yehavi Bourvine (58-4279) wrote:> Link Gerald May 28, 2014, 1:12 pm RAID10 would give you the optimum data security and the best performance but at with only a 50% space utilisation. check my blog 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.

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Bash 101 Hacks eBook Sed and Awk 101 Hacks eBook Vim 101 Hacks eBook Nagios Core 3 eBook Copyright © 2008–2017 Ramesh Natarajan. Re: To RAID or not to RAID, that is the question klfi Nov 18, 2009 8:41 AM (in response to Harm Millaard) Dear Harmsince month i read all your posts, comments, If you're not already familiar with forums, watch our Welcome Guide to get started.

It recognizes the old HHD that s in the secondary position, but it won't install. Please correct me if I'm wrong.Would highly appreciate any input on my design so I can improve it.NB - am auto finance the project, so can compromise on speed for the Bear in mind that it only helps against drive failure, not against viruses etc. Remember backups require a disk as well.

Link abhisheklohar January 2, 2015, 11:41 am RAID USED for only server client and provide the gud performance Link Gerald January 4, 2015, 11:01 am @Keshav - What is it you Like Show 0 Likes(0) Actions 2. There are two reasons:1. It was not possible to do this my attaching the drive via USB.

http://collegecafe.fr.yuku.com/forums/45/Computer-Technologies/ Back to top #11 QQQQ QQQQ Members 292 posts OFFLINE Gender:Male Local time:12:12 PM Posted 05 August 2016 - 11:49 AM I have heard of people having issues with You can use the space on the D drive to make backups of the project files from E, until you move everything over to the QNAP.BTW, which QNAP do you have, Can the president appoint himself--or herself--to the Supreme Court? One is controlled by the BIOS/drivers (like Promise/Highpoint) and the other is solely OS dependent.

For sequential activities, like with video editing it does not pay to use more than 2 GB of cache maximum.REDUNDANCY(or security)Not using RAID entails the risk of a drive failing and Several functions may not work. Do I need special RAID drives? We've tried software mirroring with MirrorFolder, but have had corruption probs.Even with a less-than-ideal solution like MirrorFolder, we were very quickly back up and running after failures.

Instead, please post your reply to the forums. Although many have been successful with Windows backup/restore, many others have had problems, especially when it comes to restore. "Take care of thy backups and thy restores shall take care of Any help Link Frank October 8, 2015, 4:31 pm I was thinking of replacing a desktop drive with a NAS drive in my RAID5 sytem.