Hardware :: Dual Drive Storage System With RAID
Jun 12, 2009
I was looking at this HD: [URL]. Could someone please summarize for me what is a "Dual-drive Storage System with RAID?" I have some ideas of what it is... it involves mirroring, and holding two copies of data to make sure one doesn't lose data, correct? This is a 4 TB drive... what if I want 4 TBs worth of storage and not two copies of 2 TBs worth of storage? Am I allowed to turn mirroring off and get a straightforward 4 TBs worth of storage? Please feel free to throw in any quick facts about RAID you may want to.
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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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Oct 19, 2007
I have 2ea 250GB internal HD. One with my apps and system on it and the other with no data. How do I mirror my drive with the apps and system? Or is that possible?
Information:
Dual 2.3ghz PowerPC G5
Mac OS X (10.4.10)
8 GB ram / 2ea. 250 GB internal HD
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Nov 4, 2010
Just put a new Hard Drive into my Imac Dual Core. I Know I need to start up from the CD drive to format the disk... I am holding down the "C" key at startup but it isn't reading the drive.
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Dec 12, 2008
I'm trying to build a raid 5 USB storage system to connect to an AirPort Extreme router. I am currently looking into buying the following enclosure and adding software to create a raid 5 storage solution which I can connect to the AE for both backup and media storage. Can someone help me find good software to create this raid 5 setup? 4-bay JBOD Enclosure [URL:...]
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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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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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May 29, 2010
Basically I need a large storage option that is set up to be resistant to loss for my high def video and images. My 500 GB iMac is full to the brim but I don't want to spend 5-800 dollars to back everything up.
I have a 500 GB time machine that is also full so I assume it's just erasing old records with new as we go along now.
I want to purchase 4-5 of the lacie 1TB drives and set up a RAID array external to the iMac. Can I do this? Is it a process a computer novice can do?
If I got 5x1TB drives and did RAID 1 or something I would have 4TB of storage and one drive could die and still maintain all my data? Is there a better RAID version like RAID 6,10 etc...?
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Aug 31, 2007
Is it possible to boot a Powermac G5 Dual 2 GHz using the built in software Raid 0? I know that this can be set up using disk utility but wondered if it was possible to boot from the RAID set.
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Oct 28, 2009
The MBP has one expresscard slot. So if you use an eSata adapter (even if it has dual eSATA ports) it would only have one eSATA channel And that would be limited further by the express card slot and more still by the type of card (make, model, etc..). My question is: with Barefeats claiming even the best eSATA card for a MBP being 200MB/s (even if you claim less) using a dual eSATA RAID connection for a stripped array would be limited to 100MB/s per port. Is this correct? Because I'm trying to understand this to see if it's worth building a RAID setup for my MBP when I'm home.
I've asked this numorous times and get helpful advice but not addressng this specific and fundamental fact. I am not interested in FW800 because I want the fastest I can get but want it to make sense. I would also reask my other questions about my situation but this question comes first.
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Dec 29, 2010
I bought a 240 GB SSD OWCCan I add a second one of those in my MacPro and format it to Raid 0?I didn't buy the Raid Edition.
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May 3, 2012
i have 5T Raid system, its ntfs fomat, windows 7 can use it and working fine, but i connect to my mac pro , its read- only. my external harddrive(ntfs) also can working .
Info:
Mac Pro, Mac OS X (10.7.3)
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May 3, 2009
what is the best/largest online storage i can get for free and a bonus i can acsess it on my ipod touch
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Jun 10, 2009
We are trying to set up a system where 4 computers are connected to a set of hard drives and connected through Ethernet. We'd like a fast speed. Which systems to get? Which cable is fastest? Is it hard to set up?
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Aug 1, 2010
I'm about to get a Mac Mini Server for audio, video, and graphic production, in addition to everyday productivity use. If in the same situation, which would you prefer?
1) to stripe (Raid 0) the two internal disks, or
2) use one as the install/OS disk and the other as the data/scratch disk?
(...assuming you have a 1TB external backup drive, and find FW800 to be much slower than internal SATA for a data/scratch disk).
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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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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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Jun 16, 2009
I would cross-post this mail I sent to the HighPoint support folks in the off chance that someone here (Hi nano!) can help me sort this out.I recently purchased the RocketRAID 4310 with the hopes of using it to replace my pain in the ass CalDigit. Read below for what a "good time" this has turned into.IHopefully you can educate me where I have gone wrong and get this working. As it stands now it looks like this card does not work with a Mac at all. Being that was the main reason for purchasing it I am not very happy.I first tested the card in a PC to make sure that it was functioning correctly, and all worked well. The card came with a BIOS (non EFI) installed. I then followed the directions in the manual to get the card up and running my new 2008 Mac Pro.
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Oct 15, 2009
So I have followed a bunch of the 'MacPro with mac raid card users wanting to do bootcamp' threads. I have attempted all the hacking required but have not been successful. I heard that bootcamp 3.1 will fix this problem possibly... so in the mean time I would like to remove my SAS drives and raid card and just use the sata drives that I have to do Mac OS and Windows.
I have removed the card but when I plug the drives in and boot up the machine, the drives are not recognized. Is there some plug that I need to reconnect somewheres?
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Nov 22, 2010
I'm curious what people use for external storage on their iMacs. I have a Mac Pro which is getting a little long in the tooth. I'm debating whether to get a new Mac Pro or to get an iMac, which would be a pretty good speed bump from my Mac Pro 1,1. I'd get the ssd drive, and the 2TB harddrive and get aftermarket RAM. But what I like about the Mac Pro is the upgrades you can do. And I like the four hard drive bays, for storage and backup. I've got over 3 TB of photos and music/tv/movies, so I'm going to need an external drive. In addition, I'd like to be able to backup everything. Is there an elegant way to do this on an iMac with an external drive that isn't super loud and hot?
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May 8, 2009
Can anyone suggest which would be my best option for external backup? Would a RAID setup be good? I have two exactly the same hard drives laying around collecting dust, and would like to put them to use for an iMac. Could someone recommend a good external enclosure for these two? Which would be better - FireWire or USB2.0? I'm also interested in mirroring since I'd store important data on them, and want both drives to have a copy of each. Is there a disadvantage to that in terms of system's performance?
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May 12, 2012
The Verify failed when checking the drive at the physical disk level, but the main volumes passed.Is this "normal", i.e. should I just be checking the volumes?
Info:
MacBook Pro (13-inch Early 2011), Mac OS X (10.7.3)
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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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Sep 27, 2009
Either with EFI 1.7 or the old 1.6 firmware... has anyone done a Dual internal Raid0 using regular hard drives or SSDs?
I just got the 3.06ghz macbook pro , put 8gb of ram inside.. and want to run a dual Raid 0 inside... either with my 500gb stock plus another HDD.. or dual Raid0 using SSDx2 -- using an optibay or something similar.
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Apr 15, 2009
Not really sure if this belongs here or in "Buying Tips, Advice and Discussion", I think its here but feel free to move it if I'm wrong. That said, here's my question: Can I run a dual OS on my laptop? Its an Intel Core 2 duo 2ghz (2gig ram) with an Ati Radeon HD 2300 graphics and presently with Windows Vista Home Premium (manufactured by Acer - Aspire5720G).
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Mar 31, 2010
I am unsure if I my DVD drive on my iMac cause do dual layers.
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Dec 2, 2009
I just bought a Guardian Maximus RAID1 kit and I have two 1TB drives in it. I'm using it over Airport Extreme as an airdisk (mac osx 10.6.2)
My question is simply: am I running a risk by partitioning it into two partitions? Should I ever have to rebuild the failed disk (which I understand is really simple with the Guardian Maximus) - will it have trouble doing two partitions? I'm using one 500gb partition for time machine and one 500gb partition as redundant itunes/media.
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Jan 28, 2009
I have a Lacie ext hard drive with 2 x 250gb HD that were one RAIDed into a single 500gb HD. I ran this update Lacie firmware update: http://www.lacie.com/support/drivers...r.htm?id=10053 And now my HD will only show up as two separate HDs of 250gb instead of a single RAID HD of 500gb.
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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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