Western Digital MyBook 512G + MyBook Studio 1T - Freezing 10.6.2 MacMini

Hi,
I´m having trouble when connecting two MyBook to a MacMini. It looks like that after a sleep, one drive is not waking up and in turn is freezing the MacMini to a halt with cursor spinning and that's pretty much all it does.
The older one MyBook Essential is connected over USB port (http://support.wdc.com/product/download.asp?groupid=101&lang=en).
The newer one MyBook Studio is connected over FireWire. (http://support.wdc.com/product/download.asp?groupid=121&lang=en).
The newer drive MyBook Studio (recently purchased from Aple Store) is not resuming from sleep when comuter is wakened up. The light keeps flashing like when in sleep mode.
The blocking can only be resolved by pulling the power cable from the newer MyBook drive, which is believed to be a suboptimal solution to the problem.
The problem so far can only be reproduced when both drives are connected. Running each of them as single drives connected seems to be of no problem.
Since the drives do work correctly each on their own on a individual basis, is there a known Mac problem eventually when dealing with reactivation from sleep mode and multiple drives connected on different bus types?
Thanks in advance and
Greetings
Falk

There may be a number of issues here -
1 - did you password the drive with the SmartWare app? there is a known wake-from-sleep problem with this. The fix is to run the SmartWare app and unlock the drive (unfortunately you may have to do this every time)
2 - did you set the drive sleep timer in SmartWare? If so, turn it off
3 - this is a green drive, and they have not always been reliable waking from sleep. Sometimes they seem to have a mind of their own.
4 - in System Prefs > Energy Saver, UNcheck the option called "Put hard disks to sleep when possible

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Using a third-party network device with Time Machine is unsupported by Apple, and may be unsafe. If it doesn't work, your only recourse is to the device vendor, who will blame Apple. Apple will blame the vendor. I suggest you back up either to a locally-attached external hard drive, or to a Time Capsule, or to a shared volume hosted on another Mac.

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Some people may be experiencing issues connecting Firewire 400 devices to their new Aluminum iMacs.
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Hi,
I found your post whilst researching my options for connecting 2 x My Book Studio II (both are the 4TB version) to my MacMini 2010 running Snow Leopard.
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Hey Guys.
I have a Western Digital MyBook Studio 3TB external hard drive that has suddenly slowed down dramatically.
I usually hook it up with FireWire 800, but both FireWire and USB is slow. I've hooked it up to another Macbook and it's still slow so i know it's a drive problem.
The speed is so slow it takes about 30 seconds for drive to load thumbnails, and videos do not even load.
I have read through many many forums but still unable to find a fix. I have a lot of important Data on this drive that i cannot lose. It's basically everything digital i have/own.
Details that may help
-2010 27" iMac i7.
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The drive could be failing, I would get something besides another WD MyBook and back it up ASAP.
I build my own External Hard Drives and backup all my data to multiple drives, one daily, one weekly and one in the fire safe.
For some other good External Hard Drive solutions:
see > Macsales.com - USB 3.0, FireWire 800/400, eSATA External Hard Drives
and > LaCie - Desktop External Hard Drives - USB 2.0, FireWire, FireWire 800 & eSATA

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Thanks,
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From what I've read on the internet WD offer poor customer service and their products are of low quality. Certainly I have experienced first-hand many WD hard drives failing, mostly with the dreaded click click click. I've only known two or three Seagates go this way in all the years I've been using hard drives (pretty much since the early days of 120MB).
It may be expensive, but I highly recommend the ReadyNAS Duo as a backup solution and / or as general network storage. I have one set up with two 1TB Seagate NS drives in mirrored mode and it works very well. Seagate NS drives are enterprise-standard, designed for use in RAID hardware where they will be in close proximity to one another, Seagate AS drives are not designed for this purpose and so may fail in this situation. Other hard drive manufacturers make enterprise-grade drives too, I'm guessing that the ones WD use in their MyBook products are not these drives though which might explain why there are so many failures. The enterprise-grade drives typically cost about £20 more but I think for reliable backup purposes it's well worth the extra expense.

Western Digital MyBook 512G + MyBook Studio 1T - Freezing 10.6.2 MacMini

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