1
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1answer
8 views

Combining two RAIDs

I have an OSX machine which houses 2 RAIDs made of 6 disks. The 2 RAIDs contain 6TB of data; they were set up with Disk Utility: A 'safe' 4TB RAID-1 (mirror) made of 2 x 4TB disks, 3.68TB used A ...
1
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1answer
30 views

Need solution for RAID from old Mac

I have an old Hackintosh which I no longer use, except as a server to access 2 RAIDs made of 6 disks. The machine is too big, uses too much power, makes too much noise, and generates too much heat to ...
1
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0answers
144 views

Getting rid of “The disk you inserted was not readable by this computer” message at startup

I have a couple of disks in Windows software mirroring RAID in my system, and when OS X (Mountain Lion) loads, the same message pops up (twice) each time: The disk you inserted was not readable by ...
0
votes
1answer
33 views

Raid 0 - Why am I constantly losing data?

I have a Mediasonic 4 bay drive enclosure like this with four 3TB Toshiba HDD's attached to my hackintosh machine. The drives are in a RAID 0 configuration setup with Disk Utility. I've had this ...
1
vote
0answers
113 views

Raid two external hard-drives with read/write support on Windows & OS X

I have a USB 3 HDD enclosure that currently has two 1TB drives in it. I am looking at buying another external USB 3 HDD drive (not an enclosure). I am currently running the external enclosure with the ...
1
vote
2answers
79 views

RAID 0 and 1 combo?

If I understand correctly, RAID 1 is two drive that mirror each other, and if one fails, it can be replaced and some hours later, it's a mirror of the good drive. Raid 0 combines 2 drives in a way ...
0
votes
0answers
74 views

Something like MHDDFS for OS X?

I'm trying to have my Mac Mini take over all my server's functions (I'm recycling the server hardware into a Linux workstation). Its pretty much all done, except for the file-serving portions. ...
1
vote
0answers
34 views

Can I enlarge a RAID10 with Disk Utility?

I have a 4TB RAID10 (4x2TB disks) created with Disk Utility. I also have 4x4TB spare disks. Can I enlarge the RAID10 to 8TB (4x4TB)? This post suggests that I can break each mirrored set, and ...
1
vote
1answer
81 views

Setting Up Raid iMac

I have one lacie 2big thunderbolt 4th unit setup as raid 1. I want to add a lacie 2big thunderbolt 4th unit. How do I get it set up so the entire unit 1 is mirrored onto unit 2(Raid1)?
2
votes
1answer
168 views

Should I use raid 0 with my optibay drive?

I installed a 120gb SSD today. My optibay currently holds my MBP stock drive (5400 RPM HD 320GB). Since they have different memory sizes, should I put them in raid 0? The only reason why I want raid 0 ...
1
vote
1answer
134 views

Could two WD Passport Ultra 1TB drives be used in the OWC Mercury Elite Pro Dual mini enclosure as RAID 1?

I'm thinking of buying one more WD Passport Ultra 1TB (I have one already) so that in the near future I could disassemble the two Passports and install the 1TB drives into the OWC Mercury Elite Pro ...
3
votes
2answers
411 views

Make SCSI Appear as Internal Hard Drive

I have the HighPoint RocketRAID 2720SGL Raid card running on my Mac and it shows as an external drive. I would like to make it appear as an internal drive. Is this possible? From: To: Here ...
1
vote
1answer
390 views

RAID 1 with a Mac - how to avoid formatting one of the drives

I have an iMac with an external 2TB HDD. I recently bought a second 2TB HDD in order to build a RAID 1 (mirrored) with the two drives. The problem is that Disk Utility forces me to create a new RAID ...
1
vote
1answer
381 views

Use two external hard drive docks to retrieve data from RAID 0 disks

Some while ago, I fried the power supply inside of my WD MyBook Pro Edition II, leaving the disks intact but rendering the enclosure itself totally useless. So now I have two 500GB 3.5" SATA drives, ...
1
vote
0answers
461 views

RAID 1 array degraded, now not being recognized by OSX

I've got a pair of Seagate 3TB HDDs in a mirrored RAID 1 array using a Vantec NexStar MX two-drive enclosure. The setup has generally worked fine for the last four months, but lately I've noticed that ...
4
votes
1answer
536 views

Can I Mount a Hard Drive in Mac Pro Tower as Read Only?

I'm trying to recover data from a failed external Fantom RAID Drive enclosure by plugging the drives into a Mac Pro tower, but I'm concerned that OS X might write to the disks and jeopardize the RAID ...
1
vote
1answer
42 views

RAID system with external hardrives

I have a few external ssd hardrives (My Passport, in my case). I would like to integrate them within a system that provides reliability in case of failure, by producing redundant information across ...
0
votes
1answer
217 views

RAID questions with ML

I'm looking to build a NAS box and putting ML on it. I currently have two drives that are configured as RAID one that I am pulling out of a NAS box. I have one drive that I'd like to add to the two ...
1
vote
1answer
167 views

How can I reconfigure the RAID settings on a Maxtor OneTouch III?

I have a 1TB Maxtor OneTouch III. This is the drive that comes with two 500GB disks and software to configure RAID 0 (mirroring) with 500GB of storage, or full use of both disks for 1TB of storage. ...
3
votes
4answers
1k views

Why does RAID 1 “Mirroring not provide performance improvements”?

I have always used Software RAIDs, either Apple-provided, or via SoftRAID, etc. I am about to re-zhuzh my arrays and decided to do a little research beforehand… and On Apple's site, there is a ...
5
votes
1answer
335 views

Can I convert a RAID 0 set to a RAID 5 set?

Can I convert a RAID 0 set to a RAID 5 set in a Mac Pro? I currently have two 500GB drives in a RAID 0 set. I want to add a third drive and convert it to a RAID 5 set. Is it possible to do this ...
0
votes
1answer
190 views

Upgrading to Lion - Questions about disks, RAID and backups

I've gone Lion on my MBP and now, having backed up four year's worth of files am ready to upgrade... A bit of background: I have a 2007 MacPro and have filled all four drive bays with: 2 x Western ...