Mac Pro :: Multiple Sets Of Striped Drives On One RAID Controller?
Aug 5, 2010
Does anyone know if it's possible to have two sets of striped drives using a single hardware RAID controller? I'm looking at the ARC-1210 and it seems like you can have more than one set of striped drives, but I'm not positive. My plan is to have two small SSDs set up for the boot drive and two HDDs for storage, each pair set up with RAID 0. Can this be accomplished using a single controller? Note: I'd just use OS X's software RAID but I need to keep the cores freed up for computation. I'm not concerned with redundancy--just speed.
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May 1, 2008
I 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?
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May 31, 2009
Can I install a Raid Controller and connect say two drives to it, specially for windows? Will it be bootable? Or perhaps even connect the iPass of the four internal bays to an Adaptec 5405 and get a separate cable for my Mac Drive. Will both be bootable? What if I just want to boot Windows for now? I sometimes need to convert my early 2008 Mac Pro into a rather beefy Windows workstation and the lack of HW Raid is rather irritating.
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Jul 11, 2009
I 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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Mar 18, 2009
I'm quite new to the OS (Level) Raid concept provided by the Disk Utility within Leopard OS X 10.5.6 and other OS X OS's, but I saw a great video showing 2 USB External HD's hooked up to a macbook running a raid to tie them together (striped or mirrored). This concept is simple! But heres my situation:I have an iMac 22" 2.4 GHz Intel Core 2 Duo, 4 GB 667 MHz DDR2 SDRAM, Running off of a "298.1 GB WDC WD3200AAJS-40VWA0 Media Hard Drive". I also have an External Drive "465.8 GB WD 5000AAV External Media".
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Jun 8, 2012
I am trying to set up a RAID5 but am having trouble with the volumes. My RAID set is 5.23TB but my Volume is only 2TB. I am creating a second volume of 3.23TB. Is there a way to combine the two volumes into one volume of 5.23TB to match the RAID set?
Info:
Mac Pro, Mac OS X (10.7.4)
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Aug 22, 2009
I have (2) Patriot Torqx 256GB SSD's in a striped RAID array powering my MBP. Where I have enjoyed the incredible performance, it really killed the battery life of this machine.I am in the process of "un-striping" them now and reinstalling OS. Any advice on best configure files to best utilize the new configuration? Should I keep boot files and documents on different drives?
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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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May 21, 2009
I have searched but I can't seem to find an answer to this question...
I have 4 x 500MB drives in my Mac Pro and 4 x 500MB external firewire drives.
Currently I use Carbon Copy Cloner to clone each internal drive to it's respective backup. ie Drive 1 > Backup 1, Drive 2 > Backup 2 etc
Is it possible to use Timemachine in a similar way? so that each internal drive has it's own corresponding Timemachine backup?
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Nov 18, 2010
I have been searching for a good raid controller with ports for both internal & external drives. Does this exist on the mac side?
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Apr 28, 2008
I am using the first generation Mac Pro, and I wanted to ask some questions related to SATA HDD and The Raid configuration. I currently have 4 HDDs in the internal bay and 2 external in the enclosure using the USB2 connection. The performance is not that great, and I am sick of adding more HDDs through USB2 which offers really slow performance. I was thinking of building a dedicated NFS File Server using Linux, but before I did that, I wanted to ask if there are solutions out there within Apple Mac Pro without going through this route.
I currently have 6 and probably need to buy 3 more in very short time period. also, all of my HDDs are 750g. Simply put, I am wondering if there are like 16 or 24 port SATA Raid Controller that I can buy for MacPro. Since the MacPro can't house all of them inside, I need to use external enclosures for some of these HDDs, connected through eSATA or whatever means possible without jeopardizing the performance. I am also interested in Raid 5 setup, so, that support in raid card is mandatory.
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Sep 14, 2009
Can anyone comment on the Highpoint RAID controller Apple is selling?
[URL]
I'm mostly looking for bulk (non-redundant) storage using an eSATA port multiplied enclosure. Nothing too fancy required. Are there any cheaper basic eSATA multi-link options available? (2006 MP) My biggest concern is good driver support. I see some SI/Sonnet cards that have questionable driver support especially with Snow Leopard.
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Feb 18, 2010
could anyone please provide more information about the RAID controller? Could I continue to use my Adaptec 5805 when switching from a PC to a Mac Pro?
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Mar 15, 2012
My iMac has been crashing a lot lately and finally it's hard drive just up and failed. I have been doing hourly Time Machine backups to a concatenated RAID set (2 USB drives of 1 TB each). However, I think the iMac crashed while backing up and hosed the RAID controller.I've since plugged the two disks of the RAID into my MacBook Pro to see if I can repair them. I can see the individual disks of the RAID in Disk Utility. I can even verify and repair them. But i can't do that with the RAID in the sidebar, and it won't mount on the desktop. When I try to eject it from the DIsk Utility file menu, it says disks are in use.
I'm pretty sure my data on the two disks is intact, but I can't seem to get the RAID to mount as the single concatenated set on a desktop, which makes it inaccessble. Is there a way to repair the JBOD RAID without losing all my data, so I can then restore from the latest backup to my hosed iMac?
Info:iMac, Mac OS X (10.7.2)
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Jan 18, 2009
The time has come to move to a RAID setup in my Mac Pro. Ideally I'd like to run 4 1.5TB SATA drives in a RAID 5 or 10. It seems there are a LOT of threads on this topic all filled with different information, so I have a few questions...
Which RAID cards are bootable?
Do any work like the Apple card and interface with the drives through the logic board?
If not, how do you connect the internal drives to the RAID card in their stock bay locations?
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Jul 1, 2009
I just got a brand new MAC PRO desktop. It came with a 600GB HDD. I purchased a second identical internal 600GB HDD. I wanted to do setup a RAID 1 using these 2 drives. Currently the main drive has the OS and all my other apps installed. I installed the 2nd drive and was fooling with disk utility. I'm not sure how to set this up however. I tried numerous guides online but I just cant figure it out.
MAC PRO (takes up to 4 internal drives) - currently installed 2 identical drives
Leopard
Using Disk utility
The RAID tab says "online" and the status is green (indicating the RAID is working). However on my desktop i see the 2nd hardddrive mounted with no contents in it. I just want to able to use the 2nd drive as a mirror so this way if one fails I'm still up and running.
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Oct 1, 2008
I just got the apple mac pro raid card today, but after I connect it and all 4 SAS drives, the MAC OSX Installtion program can not detect the SAS at all, I open the RAID Utility but no dirve there, the battery is in charging status.
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Feb 2, 2009
I 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.
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Apr 2, 2009
I'm about to configure my 2006 MP with one of Apple's RAID cards using RAID5. I currently have 4x 750GB drives that I can use, but I can see needing more space in the not too distant future. When I do need more space, can I simply drop in a 2TB drive, let the RAID system reconfigure itself, and repeat this until I have all 4 drives in place? Is there a better or different way to do this? I know that if one of the drives is larger than the others, then only a drive space equivalent to the smaller drives will be used in RAID5. After addition of the fourth drive (per the above scheme), will the array then use the full 2TB of each drive?
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Jun 4, 2012
So 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)
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Mar 26, 2008
I 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.
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Sep 29, 2008
Anyone know if it's possible to attach two USB hard drives to a Time Capsule via a USB hub, and configure them in a RAID1 configuration and use them as my Time Machine backup disk? I would then use the TCs internal drive as network storage.
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Nov 19, 2008
I have a bunch of Mac Computers here and I want to make a file server for them with about 5 drives in an RAID array to be a little bit secure. I am fairly certain how to go about and build myself a basic file server for a bunch of PCs networked together, but I am not sure about how to do it for a network of Macs.
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Mar 14, 2009
What is, in theory, the fastest raid type, when I use two hard drives.
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May 2, 2010
I 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?
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May 24, 2010
I 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?
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Aug 15, 2010
What 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?
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Dec 7, 2007
Thinking of using 500GB and 750GB internal drives for a raid 0 startup disc (software raid obviously)?
Information:
Dual 2.5 G5
Mac OS X (10.4.11)
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Aug 12, 2009
I have two choices.
1. Apple's Mac Pro RAID Controller, Four Drives, RAID 0+1. One big disk, highest cost.
2. Or, some other RAID Controller (?), Three matching drives, RAID 5. Then, 1 big drive for OS/Applications/Time Machine.
I'd probably move my Home folder to the RAID Array and have just my data striping amongst those drives. Has anyone had a dilemma like this before? I like the idea of hardware separation of my Home folder from the OS.
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May 3, 2010
I 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 $$$.
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