OS X Server :: Create Mirrored RAID Set From Existing Drive And New Drive?
Oct 4, 2006
I have a PowerMac G3 running OS X Server 10.4.7. There is an 80GB ATA boot hard drive and a SATA card and two 250GB SATA drives. One SATA drive is existing and has data on it; I just installed the second one because I want to mirror the 1st drive onto the 2nd one.My questions are: how do I do it? When I try to create a RAID set in the Disk Utility GUI, it says all data will be destroyed. I cancelled that.So I tried diskutil enableRAID mirror disk1, which told me I could only mirror volumes.The volume name is RAID, so I tried diskutil enableRAID mirror /Volumes/RAID which gave me an error "Error enabling disk to RAID Could not unmount disk (-10000)"
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May 16, 2007
I have a PowerMac G5 and need to purchase an internal RAID card to create a RAID 1 mirror of the system drive... one that will allow me create a Hardware RAID 1 mirror, not software RAID through OS X.
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Feb 27, 2010
I already have a 2x 1tb RAID 0 drive (totaling 2tb). I butchered my old XP machine and ripped out its 1tb drive.My question is, can I add a that old XP 1tb to the exisiting RAID 0 combination?Before you say, I triple backup all my files which are mainly photos so I am aware of the dangers of RAID 0.
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Nov 23, 2007
Is it possible to add a new 1TB drive to an existing concatenated raid(1TB+1TB)? and is there raid capacity limit, or it's unlimited?
Information:
G5
Mac OS X (10.4.10)
Dual 2.5 GHz PPC
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Jul 2, 2012
My system is MacPro 2009 with 10.6.8 server and Apple RAID card. Last week, RAID util just notified me of one drive is not viable, so i decided to replace the drive today. The configuration of my system is... There is an Apple Raid Card for HW Raid system Bay 1 = 640 TB drive with Mac OS X 10.6.8 server installed Bay 2, 3, 4 = 1.5 TB drives set up as RAID 5 below is what I did to replace the degraded Bay 4...
1. I shut down the system
2. replaced the corrupted drive with the new hard drive
3. tried start the machine again.Now my machine refuses to start up with the blinking question mark... I guess that the system fails to recognize the new drive or cannot find the system files...
4. So I put back the degraded drive...
5. The machine still won't start...
6. I tried to use the 10.6 server installation disk to boot up the machine to check if I can fix the system via disk util; but, everytime I do this, I got kernel panic...
7. resetting PR Ram didn't help, cannot boot up via safe mode as well (since the system file is not accessible now, I guess...).
8. booting via 10.6.2 server installation DVD still gives me kernel panic...
Why would my system corrupt by just replacing one degrade drive? The Mac OS X is not even the part of the Raid system... How am I supposed to fix this issue with out the installation disk?
Info:
Mac Pro, Mac OS X (10.6.8)
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Oct 9, 2010
I bought a new MBP, but before I did I used super duper to make mirror image of the hard drive, which I can successfully boot from. On my old MBP I I have parallels and Windows XP. I no longer have the windows discs, nor do i have the parallels software (at least I don't have the dmg file I was electronically sent). So I was wondering without installing the old hard drive, or always using to boot from if I want to use parallels, is there a way to transfer the applications to my new hard drive and use them?
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Dec 24, 2010
I have a Mac Pro that I want to create a mirrored RAID set in.
I have a 1TB Hard Drive that is the main system drive.
I just added a 2nd 1TB Hard Drive that I wanted to use along with this first hard drive to create a mirrored RAID set.
I used the following document to help with the process:
[URL]
I have opened up Disk Utility and think I may know how to do this but a few things concern me.
First, it states that it will erase the contents of the drives it's using to mirror. I had the idea it would simply duplicate the data onto the other drive. Is it true that it will delete the data on the current drive?
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Apr 7, 2009
Having spent that much on a computer, added to the fact that I'm now starting to get more music/audio freelance work, means I'm keen to get a decent backup system going. I aim eventually to get a 1tb external drive and use time machine to backup my samples drive, but what do you reckon would be the best option for the system drive?
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Apr 23, 2012
how can i re-create a hidden lion partition after creating a RAID 1 array for Lion Server 10.7.3 My new mac-mini did not come in the array i'd expect it to come with being a server?
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Jul 1, 2012
I have a macbook pro with latest lion running on it. I want to change the default hard drive with a SSD. I need to know how can i get the default hard drive mirrored on the SSD?
Info:
MacBook Pro, Mac OS X (10.3.x)
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Aug 4, 2009
My current setup consists of my boot drive (250GB), a striped RAID (500GB) for storage and a 1TB Time Machine Drive.I have recently bought a new 1TB internal drive and would like to replace the striped raid with this drive, thus freeing up two 250GB drives - 1 which i will keep internally and the other will go into a external enclosure My question is can i just copy the files from the RAID to the new internal or do i have to use software to clone it?
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Nov 16, 2009
I have a RAID 0 set up with two 1.5TB HDs. I am doing some reorganizing and want to take all the data on the RAID 0 and move it to one of the hard drives in the RAID 0 and create to single drives. Is there any way of moving all the data from a RAID 0 onto one of the HDs?
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Mar 18, 2010
I'm still working out the details on purchasing a new MacPro. My Apple sales rep tells me that I can greatly increase the launch speed of applications and the system OS by purchasing 2 hard drives and using Disk Utility to stripe them together into a "software RAID". They claim it will be faster and more reliable than a single SSD. I know I've asked this question before, but the answers were over my head. I don't know anything about SATA raid cards, or SSD's except for their benefits. But I'm pretty sure I can stripe two drives together and make a software RAID.
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May 20, 2009
I have a new Mac Pro Quad 2.93 with the Mac RAID card installed with four 1TB drives setup in a RAID 5 array. When creating the volumes in the RAID utility, you can not edit them, resize, etc. If one large volume is created in the RAID utility, you can then partition that one volume using the Apple Disk Utility, which then allows you to resize if needed.
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Jan 7, 2010
I have an '05 mac mini (pre-intel chip) with OS X 10.4 that while trying to transfer a file to an external hard drive gave me a blue screen (that wouldn't go away). After a hard shut down, I get to the apple and spinning wheel but nothing else happens.
My goal is to get to my files on the mini and put them on an external drive (specifically my itunes folder)
Is there some other way to repair this? I have 17 GB left on the main hard drive. Could I partition it and create a new bootable drive without wiping out the data in the original drive?
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Apr 11, 2009
I have a HD in my Mac Pro that is about 80% filled. I wanted to add another HD and configure the 2 as a RAID, Can I do this without reformatting the existing drive, or loosing my 80% capacity data?
The first HD is a 1TB and im looking to add an identical HD to make a 2TB drive.
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Apr 23, 2009
I have about 100gb of music in the internal drive of my Mac Mini. Now that is full, I like to fill an external drive. I know how to move everything to an external, but I don't want that. I just want to store future music in the external drive.
Do I just change the music folder location under preference/advance? Is it really that easy?
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Apr 18, 2008
[URL]
I have an existing striped raid 0 setup with 2 x 500 GB hard drives.
I just bought 2 more x 500 GB hard drives since i noticed HDD is a bottleneck for my 8 core system.
my question is, can i add the 2 harddrives to my existing raid 0 partition ? (so i have one raid partition of 2 TB )
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Feb 18, 2010
I was wondering if anyone had successfully installed and 2nd hard drive in their iMac?I have a 2 year old 2.8 24'' iMac and the performance just isn't cutting the mustard, it's all hard drive related and I already have a decent 1TB drive in there.I was thinking of perhaps swapping the optical drive with a second hard drive for RAID0, but not too sure if there will be space and was wondering if the optical drive is a standard SATA connector, or if there is some way I could run a SATA+power cables externally?
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Jul 23, 2010
Having had an issue with 2 powercuts in quick succession meaning my Mac Pro was unbootable I am looking into the software RAID built into Snow Leopard. I know it doesn't replace backups and I got my data back ok from backups. My system disk is a 1GB drive, could I purchase a 2nd identical drive and mirror across that without having to do a system re-install? What would happen to the Bootcamp partition which is also on the same drive. Taking my thoughts one step further, if I bought 3 more 1TB drives, could I create software mirror sets, and then stripe across those, which should give me some performance and reliability gains?
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Jun 14, 2012
I am using a 2006 Intel Xserve (10.6.8) at home for storing lots of multimedia. My 2 TB user drive, which is inside of one of the Xserve's drive caddies is nearly full. I purchased a $157 3 TB Seagate Barracuda (Model No. ST3000DM001) from Amazon and put it inside the caddy. It is not being recognized at all. Looking around for solutions I am getting a hint that trying to restrict the data rate to 1.5 GB/s might help, which is documented for some of Seagate's older SATA drives, where one puts a 2-mm jumper clip on a header next to the SATA connector. This 3 TB model has the same header, but the manual only speaks of data rate autonegotiation. I'll be able to try out the drive with the jumper clip in place tonight and will report back. Curiously, in my Thermaltake USB-2 interface (toaster style), Disk Utility shows the drive as "801.57 GB Generic External Media," which is being discussed in a Leopard Server discussion thread. Last I saw, there was no good explanation for this symptom.
Info:
Xserve, Mac OS X (10.6.8), Apple has made quite a bit of money off me over the years.
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Nov 18, 2010
I have just bought a X25-M SSD drive for my MBP (mid-2010). Is it recommend to clone my existing stock drive to get OSX on the SSD or should I rebuild from scratch and perhaps use Time Machine to recover all my apps and settings?
Any advice appreciated.
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Jan 6, 2010
I have a Mac Mini connected to a Lacie external HD that houses all of my iTunes library. I've just bought a new iMac to replace the Mini and want to keep the iTunes library on the external, just point the new machine's iTunes to the existing library on the external.
How best to do that? I don't want to restore from TM because I want to start fresh from this Mac and there really isn't a lot to keep other than the iTunes (most of it is on the external). If I point to an existing location, I don't need to Consolidate, do I? Any risk of losing the library? Do I need to unlink the library on the existing Mac?
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Mar 23, 2012
The user exists on the hard drive but I can no longer access it and a new user called "Local Administrator" was created seemingly out of nowhere.
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Jan 15, 2009
Okay here's the thing: I (not so long ago) copied my entire itunes library to my external hard drive. Now I have updated my itunes library on my powerbook, and want to make sure that I back up the new songs/albums I have. The problem with this is that I have always found that when I drag the itunes folder from my powerbook to the itunes folder on my external drive, it asks to 'replace the itunes music folder'. I don't want this as there are some albums that I have stored in my folder but not on my itunes library and still want to keep them stored.
Is there any way that I could just keep adding to the 'existing' itunes folder on my external drive?
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Jun 28, 2014
move my existent time machine back ups from a external USB hard drive to a WD MBLD network attached storage.
What I have tried to far: Created the a new time machine back up using the MBLDSelected the option to replace the existing time machine back up and selected the encrypt optionStarted a back upStopped it right after it started Turned the time machine offMounted the sparsebundleRemoved the backups.
backupdb folder from itAttached the old time machine disk to my macbook airCopied the backups.backupdb from there and tried to paste it on the NAS drive using Shift Option Command V.Got an error saying "the volume has the wrong case sensitivity for a backup"
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Jan 29, 2010
I have a 1/3 full external drive that is currently formatted for MAC OS External.
I want to partition the drive in half and use the 2nd partition for Windows FAT32.
However, when I try to do this with Disk Utility it does not give me the FAT32 option.
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Aug 28, 2008
2x160 GB drives in a RAID-0 holding my boot driveI want to move it do: A) Ideally 2x250 GB drives in a RAID-0 or B) A 400 GB drive.I've tried:Straight up copying/restoring in Disk Utilit Carbon Copy Cloner File-levelCarbon Copy Cloner Block-levelI can copy everything, but I wind up not having the system recognize the new drive(s) as a boot drive.
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Apr 8, 2009
Is it possible to mirror a RAID-0 array to a single drive?
For example, I will be setting up 3x1TB on a RAID-0 (striped) array and i want to mirror it to one 1TB drive. Is that possible or do i have to resort to Time Machine ... ugh
and YES i've already STFA! no answers as of the start of this thread
[URL]
-edit i assuming Time Machine backs up the "volumes" and not the "drives"
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Oct 8, 2009
I recently bought a Lacie 2big Raid drive with 2 x 1 TB drives for backup of my images (I'm a photographer).
Everything was fine, mounted the drive, formatted, and used SilverKeeper to transfer all my previous work onto the drive which was formatted with RAID 1 (mirrored).
The files all seemed to transfer across fine, size was the same, and I had a quick flick through the drive and images where all ok. So needing to use the drive that these images CAME off, I formatted that, and put that to use where it was needed.
So in summary I had the Lacie RAID 1 as my 2 sources of backup at this point. I thought everything was fine at this point.
Now maybe a few months on when I have to track back for files, I noticed quite a few folders had been corrupted, for example, opening a job folder, and every type of image file, jpeg's, tiffs, and PSD's would all say they are corrupt when I tried to open them in Photoshop. Some of these jobs where 20GB of RAW and edited images, all corrupt.
So, reading through my manual for the Lacie, it said I could remove the 2nd drive, without altering the 1st drives data.
With this I removed the second drive, trying to narrow out any problems with the RAID. Mounted the disc, same corrupt files.
I then replaced the second drive back to the RAID, which the instructions said was fine, and it would just rebuilt the mirror, so I left if for a few hours while it rebuilt the second drive.
Now my problem, the RAID has finished mirroring the drives, and now my MacPro or Powerbook won't let me mount the drive without formatting it which I obviously can't do, It brings up Disk Utility when the drive is switched on and wants me to format the drive to mount it.
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