Mac Pro :: Unable To Mount RAID External Hard Drives Since Upgrading To OS X 10.7.4
May 21, 2012Since upgrading to Mac OS X 10.7.4 I am unable to mount any of my G-Tech Raid hard drives.
Info:
iMac, Mac OS X (10.7.4)
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Mac Pro :: RAID 1 For External Hard Drives?
Feb 2, 2009I currently have a 2TB WD mirror edition that is setup in RAID 1 so it will mirror all my data. Now I also have a bunch of other drives laying around which I also feel the need to back up and currently I am doing this by doing a whole bunch of dragging and dropping and copying and pasting etc etc etc and this is making me very tired. I know that a setup is possible in disk utility but I am not at all sure about how to configure it so I wont lose any of my data.
Some details about my setup:
Mac OS X 10.5.6
PowerPc G5
Harddrives: two 1TB WD MyBooks, and two 500gig WD Mybooks --> these pairs need to mirror each other and make my life less of a hassle.
OS X Mavericks :: After Upgrading To 10.9.3 - External Hard Drive Was Not Able To Mount
Jun 23, 2014After upgrading to osx 10.9.3, my external hard drive was not able to mount, but it can be mounted without issue in osx 10.6, how do I solve it? it was formatted by disk utility.
View 14 Replies View RelatedHardware :: Unable To Mount Hard Drives / Cannot Recover Lost Data
Jan 6, 2010I have a dead La Cie Big disk terabyte external drive. It won't mount and it isn't recoverable the way it is. So I looked inside, it's 2 x 500 gig Seagate drives. So, I took the 2 drives out and installed one of them in a Mac Pro to see if it would mount on it's own. I figured probably not, since there were two drives mounted in this La Cie external case, they must have been RAID-ed together. I don't really know much about RAID, obviously.
Disk utility saw the disk, but it wouldn't mount and gave the unreadable message. Tried to disk utility it, and it gave file system errors, not surprised. It looks like you can't separate them, the RAID must split the files onto the two disks.
Is there any point to trying the utility Data Recovery on it? Or should I just tell my boss the only way to get the data back is to send it out to a data recovery place? I don't want to try and reformat them if there is still any possible way to get the data off them. I think the drives are fine and would work as a terabyte drive in the Fantom case if reformatted, but then we lose all these important projects.We seem to have the worst luck with external hard drives.
The odd thing is that I have another dead terabyte drive, a Fantom drive in which one of the 500 gig drives started clicking. I took both 500 gig WD drives out of the Fantom case and installed the two Seagate 500s from the dead La Cie case. It shows up in Disk Utility as an unformatted 1T drive. I was hoping it might just reconstitute itself in another case, but no go. If worse comes to worse, I will reformat it and it will probably be useable.
Desktops :: External Hard Drive Unable To Mount
Jan 20, 2010Without warning my iMac [OS X Snow Leopard] popped up an alert saying that I should eject a drive before disconnecting it. I had done nothing to generate this error message. I clicked ok to close it and noticed my 4 month old, external 8T Mercury Elite-AL Pro Qx2 was no longer visible in my drive directory. I also noticed this external unit was making a looped grinding noise as if it was trying to write without success. I figured one of the drives failed and took it to the mac doctor. Other than a few directory errors, everything appeared to be fine, so I paid the service fee, brought it home and plugged it in only to find the same prob - obviously it's something with my iMac. Before I go spending more service fees, I wondered if anyone here could point me toward a method of discovering what might be wrong. I ran disk utility [verify and permissions] and fixed some directory errors, but don't know how to look further. iMac was home networked with a PC [Windows] and a laptop [Windows]. I did notice something wacky with the PC, but its very old and I expect it to die any day. I was running the network through the PC, so I direct connected the iMac to the router and modem but no change: still cannot see the external drives. What other info do you need to make an educated guess for me?
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May 25, 2009I'm having a problem with my external RAID that I use between my G4 Laptop (10.5.x) and G4 tower (10.4.x). I downgraded the G4 laptop to 10.4.x so I can run Classic (kids educational software), and gain some speed. I backed everything up to my external RAID (two HD's RAID together). The downgrade install onto the laptop went perfectly. I went to restore some files from the RAID backup, and I got this error when trying to mount the external RAID: "the disk you inserted is not readable by this computer".
I just ignored the error and did not touch the RAID. I then re-connected the RAID to my G4 tower that had previously mounted successfully, and same error: "the disk you inserted is not readable by this computer". This time I started Disk Utility, and it sees the RAID and it's volume set, but it is "Locked" (see attached pics). I think I need to first mount it to change any "access control list" or permissions, but I can't figure out how to mount, and then change permissions/ACL.
Hardware :: Unable To Use Airport Extreme/external Hard Drives?
Jan 2, 2011I have two external hard drives connected to my airport extreme. The hard drives don't act like they would if they were connected directly to my macbook, though.
For instance, I'm trying to use Carbon Copy Cloner to sync the two hard drives and they won't show up in the program. They also don't mount as they normally would and they don't show up in disk utility.
I'm using version 7.5.2... I think that is the latest version - I recently upgraded and I'm not sure if thats why I can't do the aforementioned things.
I can't figure out how to use an older version though (reinstalled the software that came with the airport extreme but that didn't work).
Mac Pro :: Why Won't Boot Up With 3 RAID Hard Drives
Jun 4, 2012So I have a Mac Pro with Bay 1 acting as my regular start up drive. I also have three other Western Digital 500GB hard drives that I have been using as a RAID backup system. However, when I place all three of the RAID hard drives into Bays 2, 3, and 4, the computer will not boot. It never reaches the Apple logo, and continually tries to restart. So I figured one of the hard drives was corrupt.
However, I have tested all three hard drives in Bay 2 and the computer will boot just fine. I have also tested each bay individually (i.e. the same RAID hard drive in each of the Bays seperately) and the computer still boots fine. I can even power up with any two hard drives in Bays 2 and 3. The only time I can't power up is when all three of the hard drives are occupying all three of the extra bays.
Also, none of the RAID hard drives show up in Disk Utility or on the desktop. Shouldn't I be able to view them as normal internal or external hard drives being plugged into my Mac? They do show up in RAID Utility. Is this normal with RAID hard drives, or should they always show up in Disk Utility?
I created a new RAID backup with two of the drives together (Bays 2 and 3) and it recognizes it in System profiler. However, I want to be able to use all three drives for the RAID.
Info:
Mac Pro, Mac OS X (10.6.8)
OS X :: Unable To Mount USB Flash Drives
Jan 8, 2010I can plug in an external USB keyboard and mouse however I can not mount and USB flash drives or USB external disks. I get the following error message:
kernel Flash Disk : family specific matching fails
I am running OSX 10.5.8 on a 15" Macbook Pro 2.53 Ghz. Apple Care has not be very helpful so far. I've verified/repaired disk permissions with lo luck.
Software :: Unable To Read External Hard Drives Via Usb / Lights Turn On With Clicking Sound
Jun 17, 2008this is the second time i have encountered this problem. when i plug in an external hard drive via USB, the lights go on and i can hear the hard drive clicking a whirring but cannot find it anywhere on my mac. both with hard drives formatted on pc's and macs.
running a G4 Powerbook, power PC 1.67ghz
Mac Pro :: External Drives Will Not Mount To 2010?
Oct 10, 2010I am having issues with mu G-tech and Lacie external FW800 drives mounting to the desktop. The drives just spin and click and never mount. I tried different cables and both- front and back ports.
View 6 Replies View RelatedMacBook :: No External DVD Drives Will Mount?
Mar 21, 2012I have tried a Samsung Drive and an ASUS slim drive (that worked twice, then stopped working). They do show up in the Disk Utility, but not on the desktop. Disc Utility states that burning is not supported, even though I was able to burn two discs with the ASUS before it stopped as well. I had my keyboard replaced around the same time as the issue starting, it is possible that they could they have messed with something by accident. The tech did also forget to put a screw in above the DVD Drive. I also will note the internal drive is a Combo Drive, not a superdrive.
Info:
MacBook (13-inch Late 2006), Mac OS X (10.6.8)
OS X :: Using Two Hard Drives - Fastest RAID Type?
Mar 14, 2009What is, in theory, the fastest raid type, when I use two hard drives.
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May 2, 2010I have read that it is "a shortcut to disaster" if I do a RAID0 (or any other RAID for that matter), if the Hard Drives are dissimilar. I have the original HD 149GB (now 5 years old), and have bought a new 1T HD, and was planning on setting them up as a striped RAID0. Is this a bad idea? Should I purchase a second 1T HD and do a RAID0 or RAID1 setup instead?
View 10 Replies View RelatedMac Pro :: Temporarily Removing RAID Hard Drives
May 24, 2010I have a Mac Pro with all hard drive slots filled. The first two disks (includes startup disk) are independent, and 3 and 4 are set up in a RAID 1 mirror. I have to take my computer into the Apple store for a repair and I'd like to just take out all the disks except for my startup disk... however I'm not sure how to go about doing so for the RAID. If I take the drives out, and boot up the computer with them no longer inside, will the computer "freak out" and/or will the computer no longer recognize the RAID if I put them back in again later?
If the latter is the case, will the data be lost or would I just have to set up the RAID again... and if I do that, will that also cause the data on the drives to be lost, or is it possible for it to mirror them again without needing to make changes to the data?
Mac Pro :: Testing Hard Drives Before RAID Build?
Aug 15, 2010What should I be doing to my drives before building arrays with them?
Hitachi do a Drive Fitness Test and Seagate something similar but I have not been able to get either to work on a BootCamp Windows partition.
I tried formatting in Disk Utility and pulling some data on and off. I'm now running a scan for bad blocks in Drive Genius (is this worth it? It's going to take about a week at this rate). Anything else I should do?
Mac Pro :: Protecting 4xWD640 RAID 0 With External Drives?
Mar 26, 2008I have a 8-core MP 2.8Ghz with 10gb ram and Ati 2600HD. I'll someday replace the ATI with a quadro (all my application is 3d/CAD/Design) I'm installing 4 of the WD640 drives, they arrive on Friday.
I would love to order the CalDigit RAID card but after searching I finally figured out it's not available until next month.
That said, I need my system to start working ASAP and I don't want to wait if I don't have to.
I'm a designer, I need fast scratch so some striping needs to be involved. I also need data protection. At this capacity Time Machine isn't going to be of any use and I'd prefer redundancy anyway.
The 4 WD640s are replacing: 1 750gb 7200.11, 2 WD SE16 500GBs, and 1 320GB (Apple Stock Drive).
I would like to sell some of those drives to defray the cost of this endeavor but I'm open to keeping 1 or possibly 2 as external drives or stuffing one into the optical bay with a converter.
I want speed and reliability, of course! But really the largest motivator here is the combined drive aspect. Having so many volumes is driving me nuts.
My intention had been RAID 5 or 6 but I now know that Apple Software RAID can't do this. So now it seems with software RAID 0+1 would be the only option.
Realistically, does the cpu performance degradation outweight the speed gained from striping the drives? It's so difficult to determine bottlenecks.
Any thoughts on my best bet without/before the RAID card arrives. Can I migrate the array after installing the card without data loss?
If I just JBOD the drives can the concatenated set be broken up ever? I was thinking I could JBOD until the card came.
MacBook Pro :: 2010 MBP Can Take 2 7200 Rpm Hard Drives And Raid 0?
May 3, 2010I have been reading about people taking a SSD drive for Boot and OS and using a second HD for their data using MCE's Optibay hard drive enclosure.
I would love to go this way but I can't justify spending all the cash on a SSD yet. Could I put in 2 500GB 7200 rpm drives and RAID 0 them? I know this wont be as fast as SSD but it should be faster than a single hard drive and hold a lot more storage for less $$$.
OS X :: Does Mac Write Any Unique Info To External Drives On Mount?
Dec 24, 2009I've always wondered this: I know when you mount a drive (USB stick, FireWire external or even an iPod of some sort) in OS X, a few invisible files get created. And if you have an AV program, sometimes it will write files to the drive. Same with some other third party apps. Do any of these files contain personal information, or things unique to the machine? Like user name or directory structure or things of that nature? I assume they don't, or else you'd probably see it mentioned more often, but I was wondering if anyone had a definitive answer..?
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Nov 21, 2008I'm thinking about getting a Mac Pro tower from apple, and then buying two 500gb hard drives to place them in a raid 0 config. My question is, is setting up raid as easy as taking out the existing hard drive, placing both the new drives into the mac pro, and selecting raid 0 from OSX when I reinstall the operating system?? Or does the Mac have something similar to a Bios setup where I select that?
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Jul 11, 2009I just got a used mac pro quad. I plan to use it for video production- final cut pro, pics - aperture, and music production- protools. THe computer came with 3 - 10k rpm 160g hd's. Two of them are set up as a raid 0. I like the idea of having a faster drive as a boot drive, but 160 seems kind of small to me as the drive to run memory hungry apps and the operating system. Am I right? I could go to a 300g 10k rpm drive. I am also thinking about getting a bigger drive, say a 750g or 1 tb 7200 rpm. Should I use this as the boot drive or as a secondary storage drive?. If it's the boot drive should I add the other 160g 10k drive to the raid or keep it separate? I assume that neither way would be wrong, nor create a problem, but since I haven't put anything on it yet, I'm wondering what would be the most efficient way to manage my files and get the most out of my computer.
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May 9, 2009I connect 2 Iomega external disks and in the system profile I see them under the firewire tab.
I tried them on my macbook and it found them right away.
But on the mac mini they dont get mounted or it is like it is not proberly finding them What can be the problem?
Mac Pro :: Get A Highpoint Raid Controller And Put Those 4 Drives In A Raid 5 Array?
May 1, 2008I have a macpro with 4 x 1tb drives
Is it possible to get a highpoint raid controller and put those 4 drives in a raid 5 array (and then create partitions inside that array) - or do you need to have 1 drive by itself for the operating system, and then create a raid array using the remaining 3 drives?
Lastly, are the highpoint 3500 series a decent card? and fully compatible?
OS X V10.7 Lion :: Unable To Mount External HD?
Jul 5, 2012After using OS Lion, I used to use this HD as my time machine.Yesterday I wanted to backup, found out that my Mac pro can not mount this HD anymore. Other my older external HDs are working well, except this one.
I wonder why? My console shows fallowing error,p.s: already did SMC and PRAM, still doesn't work.
# Product name: Iomega Prestige 1TB portable hard drive. (USB)
# Driver: Iomega Encryption Utility Mac v3.1 (the one works with Lion)
# bought in 2012 April, still new.
Info:
MacBook
Pro, Mac OS X (10.7.4)
OS X :: Unable To Mount Lacie 500 GB Hard Drive?
Jul 26, 2009I am new to this forum and hoping for some advice with this hard drive issue.
I opened a brand new Lacie 500 GB Hard Drive. It is connected to my macbook via usb. I selected it as my hard drive destination in Time Machine and ran the backup option.
The hard drive did mount. About 5 minutes in the backup option failed - a time machine error: time machine backup failed.
I ejected the drive and unplugged it/turned it off and rebooted my laptop. Now the hard drive does not mount on my desktop however will show in disk utility. It lists with the Lacie name and another subdivision under the name.
When I try disk repair, erase or partition..I always get the same message: resource busy. After the error, the hard drive subdivision disappears leaving only one name on the list in disk utility. (It does not have the name underneath it).
I apologize for my semi technical description. I am new to mac and appreciate any advice on how to fix this issue. All I want to do is backup my laptop using the new hard drive with time machine.
Software :: External Hdd Unable To Mount - How To Repair
Mar 20, 2009external harddrive (Seagate brand). I've bought DiskWarrior (the latest
version) and rebooted my mac to run the program. It recognized the
drive, but said it was not supported.
(i used to use it with my pc, but it did,once, run on the mac- until i yanked the cord out!)
Is there an issue with formatting that i need to get around so that my mac can read the drive to repair?
Intel Mac :: Unable To Mount An External Drive?
Jun 1, 2012I disconnected a working external 750 Gig G-Drive. When I reconnected it, it won't mount. I have restarted the computer. I have disconnected & re-connected the drive. Still no luck. What should I do?
Info:
iMac, Mac OS X (10.7.4)
Software :: Upgrading Hard Drive To Larger Drive / Cmpletely Cloning The Drives?
May 16, 2009I have a Mac Book Pro core duo with a partition running windowsXP pro. The hard drive is almost completely full. I want to replace the drive with a larger drive and clone the current drive. Is there a way to completely clone the drive complete with the partition, boot camp, windows etc? I'm running mac os 10.4.11
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Dec 29, 2008Just bought the WD Elements external Hard drive, plugged it in... and it won't mount on my G4!
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-Doesn't show up in Disk Utility or System Profiler
