Set up a RAID 1 with four Hard disks with DiskUtility

I have a Sonnet Fusion-500 RAID enclosure with four hard disks of 500 GB (2TB total) connected to a Power Mac G5 (2x2.3 GHz, 2GB RAM, MacOSX 10.4.8) through a Sonnet Serial ATA PCI express card (Tempo E4P model). Since I have a total capacity of 2 TB, I would like to set up a RAID 1 (mirrored) and combine the four drives in a final working volume of 1GB, (and the remaining 1GB in the mirror volume). I've been trying to setup the RAID with DiskUtility, but I cannot get a working volume of 1 GB (only 500 GB -the size of a single disc-). Can anybody please give me some help in setting up this type of RAID?
The four 500 GB discs are OK, since I can create a RAID 0 (~ 2 TB) or initialize them al individual drives without problems.
Power Mac G5 (2x2.3 GHz & 2GB RAM) Mac OS X (10.4.8)

Glad I could help.
Why reward points?(Quoted from Discussions Terms of Use.)
The reward system helps to increase community participation. When a community member gives you (or another member) a reward for providing helpful advice or a solution to their question, your accumulated points will increase your status level within the community.
Members may reward you with 5 points if they deem that your reply is helpful and 10 points if you post a solution to their issue. Likewise, when you mark a reply as Helpful or Solved in your own created topic, you will be awarding the respondent with the same point values.

Similar Messages

How do I set up a RAID array with an external hard drive?

Im trying to backup my hard drive onto a 250 GB external hard drive (connected by Firewire) via a RAID 1 configuration. What is the best way to do this?
MacBook Mac OS X (10.4.6) Intel-based, Windows XP Pro is installed via Boot Camp

There are times when a mirror is fine. SoftRAID in their example of uses, has a situation with someone who doesn't backup, has a laptop (where failures seem higher) and might also want to be able to take the external mirror and take it with them.
One backup is never enough. What if something goes wrong during the backup? power failure or crash? the backup is now corrupt.
Having a mirror and a 2nd copy would be fine. And you can do that. I find DVDs have been too small and slow in the past to use regularly, I use disks, and burn a DVD of important stuff on a 3 month or longer basis, and some stuff is even less.
so while there is always going to be "mirror raid is not a true backup mantra" it is still useful for what it does. Even if it is instant and copies the good and bad. Just don't rely on it as your ONLY backup, you should have another disk drive as well (and DVDs).
Also, FW400 is not a speed daemon - 35MB/sec or less is not uncommon.

How can I recover files from an hard disk that DiskUtility cannot rapair?

When I push the power button of my PowerBook, while the computer is rebooting and you see the gray screen with the apple, the black screen appears saying that I have to restart the computer!
I have connected the Power Book to another Mac BookPro 2.33Ghz, intel Core Duo 2G RAM via firewire.
In the Mac bookPro desktop I cannot see the HD, and disk utility indicates this problem:
+Verify and Repair disk “Macintosh HD”+
+Invalid Volume Header+
+Checking HFS Plus volume.+
+Checking Extents Overflow file.+
+Checking Catalog file.+
+Invalid node structure+
+Volume check failed.+
+Error: The underlying task reported failure on exit+
+1 HFS volume checked+
+ 1 volume could not be repaired because of an error+
+and then:+
+Disk Utility stopped repairing “Macintosh HD” because the following error was encountered:+
+The underlying task reported failure on exit.+
Of course, I didn't try to format it, because the HD contains data that I don't want to lose.
I tried "Data Rescue II", and I can see and scan the HD, but it seems that I can only recover deleted files...
Any suggestions on how to repair the HD without losing the files?
Or a software suggestion that at least lets me first recover the files. If I recover the files, then I will try to reformat the HD.
Ciao!
beppe

Before giving up I would try Alsoft Disk Warrior which may be able to fix the problem:
http://www.alsoft.com/DiskWarrior/index.html
If this doesn't work out you can usually recover most of your files with Prosoft's Data Rescue II:
http://www.prosofteng.com/products/data_rescue.php
Message was edited by: Zlig

Setting up a RAID 0 between the Mini's internal HD and an external

Would it be possible to set up a RAID 0 between two hard drive, one being the internal drive of the MacMini and the other being an external firewire drive?
Would these two drive have to be configured outside of the computer in external enclosure and then one transplanted into the mac mini, or will the operating system allow this to be set up between the two drive?

Yes you can RAID the internal Mac mini 2.5" hard drive with a FireWire external, but a striped RAID set is always limited by the speed of the slowest drive and the size of the smallest drive.
As such I would not expect much of a performance gain and you would have to erase your internal drive to create the striped RAID set while booting from a 3rd drive to setup the RAID0.
Using a FW boot drive will give you increased performance. You can see details here:
http://www.amug.org/amug-web/html/amug/reviews/articles/wiebetech/max/
Or if you really want to speed up the Mac mini read about the AMUG Super-mini project which uses 3.5" SATA hard drives. It was tested in single and RAID0 configurations on the internal ATA/100 IDE bus of the Mac mini
http://www.amug.org/amug-web/html/amug/reviews/articles/addonics/mini/
Michael

HARD DISK DRIVER ISSUES WHILE INSTALLING WINDOWS 8

I am trying to install windows 8 on my PC, but it is asking for hard drive drivers. I have installed windows 8 before with no issues on the same PC with same configuration, but now I am facing these driver issues. Currently I am running Win7 as i cannot
reinstall Win8.
Config:
Gigabyte Motherboard 945G with Intel Core2duo8400 3ghz,
Intel(R) 82801G(ICH7) FAMILY CHIP SET,
4gb Ram, Nvidia graphic card, Seagate hard disk 160Gb.

Hi,
I doubt that the hard drive is either a SATA drive or in a RAID setup, you might need to install RAID controller drivers or SATA driver during the installation.
I also suggest you refer to the following link and check if it can give some hints.
https://social.technet.microsoft.com/Forums/en-US/6e278d52-1e69-4bca-8beb-f0424eed5891/installation-problem-windows-installer-cannot-find-hard-disk-drivers?forum=w7itproinstall
Please also check this KB
http://support.microsoft.com/kb/937251
Yolanda Zhu
TechNet Community Support

HD Video and External Hard Disks

Howdy.
I'm having a strange problem with HD video footage (1080p from various sources) and playing it back from external hard disk.
Here is the situation:
I have a new 17" Macbook Pro; if I play 1080p video directly from the internal drive, it plays with no problems at all.
I have a 1TB USB 2 external drive; 1080p video also plays back fine from this drive.
I also have 2 G-Drive's; both with a capacity of 1TB each and connected via FireWire 800 and when I try to play 1080p footage from either of these drivers, the video is very stuttery.
Now, it would be easy to say "well the G-Drives but be operating slowly", but if I copy files between them and the internal drive, the files copy very quickly; much quicker infact than copying files to the USB2 drive.
So for all transferring of files the G-Drives are much quicker than the USB2 drive.
To make matters even stranger, if I connect the same G-Drives to the MacPro we have at work, the 1080p video plays back fine.
So it seems to be the combination of my MacBook Pro + the G-Drives that dont like playing 1080p video (since the drives on another computer play fine, and my macbook pro plays the same video fine from both the internal and usb2 external drives).
It's got me baffled.
Anyone have any idea whats causing this?
Thanks.
James.

The USB drive is older but for my first tests, was actually NTFS formatted (since Id been using it on my windows PC); the files played fine even with the NTFS formatting and over 200GB of files on the drive.
I then wiped the drive and formatted as Mac OS Extended, transferred a couple of video files and played them, again they played back fine.
The thing is, if I simply move/copy files between internal drive and fire wire drive; and from internal drive to USB drive, the fire wire drives are clearly much faster.
So it's not like the fire wire drives are running slow, the problem is only in the playback of the files.
Also, as I have 2 of these fire wire drives, 1 drive is empty appart from the video files im trying to play (less than 200MB), the other drive has about 200GB on it and the video doesn't play properly on either of them.
But as i said, if I simply connect the drives up to the MacPro we have in the office, the videos play back without a hitch.
So it seems the problem is specific to playing video back from the g-drive in combination with the macbook pro (general file operations happen very fast); individually if separated and used with another device they work fine.
EDIT:
Forgot to mention.
I also tried setting the 2 fire wire (G-Drives) up as a striped raid.
Again, when moving/copying files between said raid and the internal hard disk, the transfers were very quick; but the video files (which come from various sources, i.e canon 7d slr camera, gopro HD helmet cam etc) all fail to play smoothly even from the raid.
Message was edited by: Skonk

Designjet 1050C Plus Compatible EIO Hard disks

Which EIO hard disks are compatible with the Designjet 1050C Plus Plotter?

Hey guys
THanks for much response. More specifically, it is K7N2G-L.
Here is a quotation from the manual:
Hard disk RAID connectors: IDE3, SER1&SER2(optional)
Controlled by Promise 20376
The mainboard also provides optional dual high speed Serial ATAinterface ports, SER1&2
Each supports 1st generation serial ATA data ratesof 150 MB/s
Both fully compliant with Serial ATA 1.0 specs
Each SATA connector can connect to one hard disk device
And here is the preceding page on ATA hds:
The mainboard has a 32-bit enhanced PCI IDE and ultra dma controller. that provides PIO mode 0`4, Bus Master and Ultra DMA function.
You can connect up to four hard disk drives, CD-Rom, 120MB Floppy and other devices.
Pls help me understand the above: 4) This means that in total you can connect up to four different devices, hds among them.
So If you have a CD-Rom, only 3 HDs (ata or sata) can be connected, right?
and one more
5) Is SATA much better than ATA? If yes, 6) Will it improve performance of WinXP significantly if I install it on SATA?
The other option is to use such an additional sata for wav samples (I make music on sample-based programs).
7) which one is better sata for windows or sata for samples?

Datafile recovery from corrupted hard disk

Hi Guys,
Im using oracle 8i 8174 on windows 2000 server.
Suddenly out of four hard disks one of them corrupted. No RAID configuration.
This disk is F: drive partition only and having a datafile.
Windows 2000 server is working fine , but database is not opened due to failure of hard disk.
I have export of one day back.
I want to recover datafile file from export which is in corrupted hard disk.
Pls guide me.
Arvind
Edited by: Arvindcbg on Mar 4, 2011 6:10 AM

no redundancy, no physical backup and you have lost complete drive/partition.
But better having something than nothing, you got export dump created from last night.
You need to create a new database and just do the import using last night export dump file.
Also, ZIP all the existing database files, and keep them safe, if you are manage to repair the disk, could be useful to get the data for a day..

Solaris 10 x86 don�t recognize hard disk of Dell PowerEdge 2850

Hi:
I�m installing Solaris 10 X86 in a PowerEdge 2850, after I changed ACPI and put 119376 -01 patch, now i can see disks but when the instalation begin it go until 15% and doesn�t follow with it and doesn�t show any messages .
I have a perc 4e/di Raid Controler and 3 hard disk off 73 Gb
Thanks for Advance.

Solaris 10 does not play well with certain raid controllers shipping on the Dell 2850s.
See http://forum.sun.com/thread.jspa?threadID=23549
You may want to look at the HCL entry for the 2850
From http://www.sun.com/bigadmin/hcl/data/sol/systems/details/806.html
Stephan Sachweh writes,
If you have a DRAC4/I board inside you should upgrade the firmware to v1.20 and disable the VIRTUALCDROM and VIRTUALFLOPPY while installing Solaris.
Also you need a patch for big drives if you have 73GB Seagate harddisks.
In your Solaris 10 boot floppy, edit Solaris/bootenv.rc, append this line to the end of this file: setprop acpi-user-options 0x4 ---
For some info about the perc 3/di on the older 2650s, see http://www.sun.com/bigadmin/hcl/data/sol/systems/details/6.html

Reading Hard Disk Serial No.

How can I read hard disk serial# from oracle forms?..I need it to implement security on login system...so that system could'nt be run on any other system.

Kashif,
If you had searched the forum then the first searched result would have solved your worries
i made a sample form and posted it on OTN last month
please follow this link and download the smaple form
Hard Disk Serial No. Retrieval Example!!
If you have problems using the sample form then follow these steps to make your own
follow these steps...
Make a new form, new block, new canvas...
go to layout editor of the canvas
Now:
- Create an ActiveX Control Item (OCX) on your canvas.
- Right click it and select 'Insert Object...'.
- A list will come
- Press 'H' on keyboard
- It will come to a selection "HardwareInfo Control'
- select it and then press ok!.
- In the main Form biulder menu 'Program', choose 'Import OLE Library Interfaces'
- again Press 'H' on keyboard
- and see to find out a selection in the list: "HardwareInfo.HardWareInfo.ctrl1'
- select it and then u will see something each in Method Package(s) and the Event Package(s) lists.
- Select both the Method Package(s) and the Event Package(s). Make sure they're highlighted.
i.e "_dhardwareinfo and _dHardwareinfoEvents"
- Now press OK
- Verify the existance of 5 new programme units in your Foms Program units section in object navigator:
i.e.
HARDWAREINFOLib_CONSTANTS
HARDWAREINFO_HardWareIn_EVENTS
- Now go to layout editor again and make a new single display_item (non-db)
- make a push button..
copy the following code in ur wehn-buton-pres tigger, dont forget ot change the
'your_block.your_activex_item_name' p[ortion in the following code with correct block and OCX item name
DECLARE
VAR oleobj;
BEGIN
VAR := :ITEM('your_block.your_activex_item_name').interface;
:ur_display_item_name := HARDWAREINFO_DHardWareInfo.HardDisk1SerialNumber(VAR);
END;
now run the form and see what serial no it shows..
also how maany hard disk u have on ur pc the .dll files can show upto four hard disk serial nos
look closely this 'HardDisk1SerialNumber' of the above:
:ur_display_item_name := HARDWAREINFO_DHardWareInfo.HardDisk1SerialNumber(VAR);
u can see the '1' in the 'HardDisk1SerialNumber' is the no of system hard disk..u may try it by changing to HardDisk2SerialNumber, HardDisk3SerialNumber, HardDisk4SerialNumber
regards
Asim.

Using ipod as a hard disk

Hi,
I'm using iPod 30GB. I tried to set my iPod to be an external hard disk by following the steps in the support. Although, I tried a hundred times, I'm still having trouble that my iPod doesn't appear in the Windows Explorer on my PC. Could you tell me why? Thanks for your help ahead.

First of all, try another port on your computer. Some ports are not connected direct to the motherboard and do not recognize the iPod as well as those that are. Reset the iPod each time you connect it to another port.
Still no joy, see these.
Your Windows PC doesn't recognize iPod.
Strange iPod behavior.
Are you doing the disk mode procedure correctly?
Putting iPod into disk mode.

Trying to use my iPod as a hard disk

The iTunes tutorial, under "Other ways to use your iPod," gives specific instructions for enabling "your iPod to work as a portable hard disk," but the instructions do not follow what I see on my screen ("Select your iPod in the iTunes Source list" is one of them (there is no such thing. "Click the Options button on the lower right corner..." isn't there, either). Can anyone please tell me how I can set up my 3G iPod as a hard disk so I can transfer music and podcast files there without going through iTunes, which is a program I find excessively intrusive? Thanks. --Fred Powledge.

Connect your iPod and when it shows in iTunes click on it's icon to bring up the preference tabs in the main pane. In the Summary tab check the box "enable disk use" and click the Apply button in the right hand corner: Using your iPod as a storage drive

IMovie, working on other hard disk drive

Is there any way to work on iMovie 09 on external hard disk?
I am now trying to work on my new movie project, and my most of movies I want to use are in my other hard disk. Those movies are too huge to move in my computer.
Or is there anyway to set the iMovie events folder in other hard disk drive?
Thanks.

Welcome to Discussions, daylight7986
Click the Hard Disk button in iMovie's Event Library to see other drives.
iMovie help can give you more info. Searching your Mac's iMovie > Help for "disk" (without the quotation marks) will give you several topics including these linked here from Apple's web help:
http://docs.info.apple.com/article.html?path=iMovie/8.0/en/19548.html
http://docs.info.apple.com/article.html?path=iMovie/8.0/en/19555.html
(The help topics will be quicker to use from your Mac's iMovie help.)
They will explain how to change disks or move a project there after it has been created.
EZ Jim
G5 DP 1.8GHz w/Mac OS X (10.5.6) PowerBook 1.67GHz (10.4.11) iBookSE 366MHz (10.3.9) External iSight
Message was edited by: EZ Jim

Building a Raid-0 with two out of four internal drives?

Hello everyone
I have four drives in my MacPro:
1) OS+Apps
2) Virtualization
3) iTunes
4) empty
My iTunes library fills drive 3 and I am close to having a full drive.
I would like to 'span' my iTunes library over to drive 4 and was thinking about building a Raid-0 on drives 3) and 4).
Can I do this without any additonal software and hardware?
Do I simply do that in Disk Utility?
Can you foresee any limitations to that setup (except for fault tolerance)?
I assume performance is also sufficient as after all it is only for iTunes.
I am not worried about drive crashes as I can back-up the spanned drives externally
Any thoughts?
Thanks in advance

Quick follow-up information from the disk utility help menu:
"Using several disks as a single volume with a concatenated RAID set
If you need to set up two or more disks or volumes to work together as a single, large volume, you can create a concatenated RAID set. You can even increase the size of a concatenated disk set after it's been created by dragging more disks to it in Disk Utility. This RAID set is helpful if you have a file, such as a database, that's larger than any of the disks you have. Or you may need to create a mirrored or striped RAID set with one large disk and two smaller disks.
If you booted your computer from a disk that has multiple partitions, you cannot create a RAID set that contains partitions from your boot disk. To create a RAID disk that contains partitions from that disk, you must boot your computer from another disk or the Mac OS X Install disk first.
You cannot remove individual disks from a concatenated disk set."
So it seems I can add disks whenever I want but once added I can't remove them...

This disk doesn't contain an EFI system partition. If you want to start up your computer with this disk or include it in a RAID set, back up your data and partition this disk.

As stated above. I get this when I try to resize my HD. Was having issues with BootCamp so I removed it and got this.
This disk doesn’t contain an EFI system partition. If you want to start up your computer with this disk or include it in a RAID set, back up your data and partition this disk.

the same problem...
any help?

Set up a RAID 1 with four Hard disks with DiskUtility

Similar Messages

Maybe you are looking for