Half of the capacity is used to store your data and half is used for a duplicate copy. If one drive goes down your data is protected because it's duplicated. In systems with three or more drives we recommend that you set the system to RAID 5. This gives you the best of both worlds: This RAID mode is good for business critical database management solutions that require maximum performance and high fault tolerance. The blue little logo showed up for a few seconds on the top bar and then disappeared. So, if understand correctly, from now on I have to use the device as a simple 2TB external hard drive, right?
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My Book Mirror Edition - How to RAID in El Capitan - External Drives for Mac - WD Community
External Drives for Mac. The troubleshooting information I was provided gave me the impression that no one read my request. In my request, I stated that there was no power to my external HDD. Can someone perhaps with a more intelligence than the previous goon who replied to my question explain to me why plugging an external HDD with no visible signs of power will assist in trouble shooting?
Please refer to the link below:. I dont want to be agravating or anything, just want to gather as much info on the WD as I can, so I can avoid problems with the ones I have. It sure seems absurd that the WD wall wart can have problems running off a power strip, dont you think? So I guess the first thing is to find out if the power adaptor is putting out what is should. Any number of ways to check that, from a meter, another drive, a light bulb. I also found the drives are really cranky about what is done when to them.
First disconnect everything, then connect power to the drive, then turn on the computer, then connect the fire wire cable. Before I figured out that the drive, once it gets confused, has to be started up in this exacting way, I was able to get it up on USB. No lights might not mean no power. The drive may be too confused to turn on its lights when asked. Did you read my previous 2 emails?
RAID 1 - DATA PROTECTION
This is ridiculous!!! Perhaps you could paraphrase what I have said to ensure that you have completely understood the source of my frustration!!! Assuming that you know best, please send me a power source perhaps another USB lead as well however I would like to stress that its the HDD that is affected and not the power cord.
I assume that given the nature of my issue, WD will be pleased to cover all freight and insurance costs for the power cord and the cables to ensure I will get what I have paid for at no additional cost. I found this site when I had to search for a reason why my WD had decided to die. As I went further down the comments the bile started to rise — ALL my recent work is on my — how many places do you have to store it?
To me it seems this piece of crap from western digital is one day not going to be recognised on my pc and i think i will loose the data in a few weeks or dayz to come,.
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The MacBook is more sensitive to these drives than my old PowerBook. The first problem I had with the drives is common one whereby when they are both running, eventually they would put themselves to sleep and jam in anywhere from 5 minutes to about 20 minutes. This is whether they are doing anything or not. And also, whether they are daisy-chained together via the ports, or if one is running via the port and the other through the port.
The next thing I tried was to plug the drives directly into the electrical outlet, bypassing the surge protector. I was sceptical of this suggestion; however, it did help. The drives stayed running together long enough to copy some major files. However, they would sometimes get confused starting up again with the computer.
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Also, whenever I used the Pro drive via , my iTv on the would turn off. This worked. I daisy-chained my MyBook together with the iTv and ran the MyBook by itself through the port. Amazingly, everything now works as it should! Both drives stay running if they are being used, shut on and off with the computer, and iTv stays running. So, check you hubs, if you are using one.
I will probably try plugging them back into the surge protector as I am afraid of an electrical spike jumping through the MyBook to my MacBook Pro. I also will try my third non-MyBook external drive to see if it plays nice with the MyBooks. My beef with WD is the replacement Firewire cord they send out is a full 2 feet shorter than the 6 foot one that came with the original device.
This is not acceptable, to send out smaller replacement parts than the originals. Otherwise, thankfully, my drive has worked fine. I have experienced none of the problems you have talked about. The sticker on it says it was manufactured in Jan It has the latest firmware. The remote access features are cool — and easy. Not exactly open source, but it is reliable and slick.
I also have spent quite a few joyless hours with my new my book pro gb. Initially I could not find it. Then I would trigger new device but not load drivers. Then — somehow after much fiddling — it suddenly appeared. I started to back up my Windows xp and it ran most of the night usb1. In morning it suddenly stopped — presumably due to partition limit?
I thought I got it re-started successfully but now think it resumed back-up onto my original c drive! That night it appeared dead — many hours fiddling again.
Troubleshooting
At last, seems to be working — not sure why — think unplugging all for several hours and then plugging usb then power cord may have revived it. Any advice on a FAT partition on my c drive? Can I just get rid of it somehow? Every system ask for a driver when I connect directly to a system, according to WD documents xp and win built in driver should be engough but OS built in driver does not make it working. I suppose WD should rewrite driver as their are so many customer complaining. I tried two companies http: May be I do need a special cable for this and what I am using to connect pc to this HD I have borrowed from someone may be is not the right cable.
The driver what I got with cd is not right one or at least it not working on my machines. Bought myself a Gb Premium edition, same problems. I have to turn off my comp, restart it, then the disk works… Gonna get rid of it before it gets rid of my data. Piece of shit! Fixed mine!!! I pushed the cable in tight and it came right up. It pulls out at an angle so when it was loose it had enough connection for the PC to see something but the connections it needed to identify and run the drive were disconnected.
I wound up breaking 2 of the clips but it still holds together fine. Based on the amount of negative comments on here I would say a Class Action against WD is probably in order even though none of us would really see a penny of the settlement.
Western Digital My Book Mirror Edition User Manual: Wd Raid Manager For Mac; Configuring Raid
I would just like to put WD in their place, hell. I had similiar problems like most of you. I was literally going nuts. So I did a search and found this thread. I am a professional photographer and I use multiple WD external drives.