Apple Raid Software For Mac

At the time of output mac os 10.13 was removed support for boot from RAID 0. Post on apple developer remained unanswered. Exit the terminal and open the disk utility and format the array APFS; Exit disk utility and install macOS Catalina.

While the feature was removed in El Capitan, native software RAID has returned in macOS Sierra. You can access it through Disk Utility, and the graphical interface makes it easy to configure either RAID 1 or RAID 0.

Which RAID?

RAID stands for Redundant Array of Independent Disks. It’s a protocol that allows users to combine multiple physical hard drives into a single logical data storage structure. This is then seen by the operating system as one drive, despite being made from multiple physical drives.

Melodyne 3.2 serial number for mac. There are a bunch of varieties of RAID. macOS provides native software support for the most common types: RAID 1 and RAID 0.

RAID 1

RAID 1, commonly called “mirroring,” use two or more hard drives containing exactly the same data. In this way, the user is protected against the sudden failure of a disk. It’s important to note that RAID 1 alone isn’t backup. Any user errors or corruptions will instantly copy themselves to both drives. It’s also only as fast as the slowest hard drive in the RAID set, since write operations must be done simultaneously.

RAID 0

RAID 0, commonly called “striping,” shares data across both disks without duplication. You can no redundancy, but you can see a significant increase in read and write speeds. Because RAID 0 includes no duplication, if one drive fails in a RAID 0 array, the whole thing is hosed. This is awesome for applications that require high disk performance but can tolerate a lower level of data integrity, like scientific computing or AV processing.

JBOD

macOS also offers JBOD, which stands for “Just A Bunch Of Disks.” It’s as prosaic as it sounds. The OS combines two or more drives under one drive name and icon, creating one “logical” disk out of multiple physical disks. You won’t get any of the features or benefits of RAID 0 or 1. JBOD is essentially a directory of physical hard drives for user convenience.

Setting Up RAID in Disk Utility

1. Open Disk Utility. Look in /Applications/Utilities or type Disk Utility into Spotlight.

2. Click the File menu and choose the menu option labeled RAID Assistant…

3. In the next dialog box choose the type of RAID array you’d like to create. Click Next when you’re ready.

4. Select the hard drives you want to include in your new RAID array. You’ll see the same screen here regardless of the kind of array you chose in the last step

5. Give your RAID array a clever name. Leave the other options on the default settings. Click Next when you’re done.

6. Confirm that you’ve selected the right disks, thought he names might not be too useful. Click “Create” to finalize the array. This will automatically format the disks and destroy any data on the drives, so make sure you don’t care about that.

7. Wait for your array to spin up. This might take a couple minutes, depending on the size of your array and your interface speed.

8. The array is now ready for use!

In the main Disk Utility window, you should now see your new RAID array in the sidebar. Click on it to see more info about the array.

If you have selected RAID 0, the disks you selected will be automatically striped together. If you’ve selected RAID 1, those disks will become mirrors of one another. And if you’ve selected JBOD, all those disks will now appear under a single name and icon within the operating system.

Deleting a RAID Array

To break up a RAID array, you’ll need to delete it. This will destroy all the information on the array, so only do this when you’re done. This is especially true of a RAID 0 array, which requires all members to function at all.

1. Open Disk Utility.

2. Select your RAID array in the sidebar.

3. Click the button labeled Delete RAID…

4. Confirm your choice in the next dialog box. This will completely erase the disks, so double check.

5. Hang tight while the array erases.

6. The array will disappear from the sidebar when you’re done.

7. You will need to manually reformat the array’s constituent drives before you can reuse them. Select one of the former array’s disks and click the Erase button in the toolbar. If this button is greyed out, make sure you’ve selected the volume in the sidebar that starts with “RAID Member” rather than the disk itself.

7. Select a disk format in the next dialog box. Typically, this would be automatically filled in, but here you’ll need to make an affirmative selection. Mac OS Extended (Journaled) is or APFS is fine. Click Erase.

Conclusion

RAID o or RAID 1 can both be configured easily through macOS Sierra’s Disk Utility app. If you want performance and can tolerate low data integrity, go for RAID 0. If you want to protect against disk failure, check out RAID 1. And if you just want to combine a bunch of disks under a single icon, JBOD is for you.

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If you deal with enormous files on a regular basis or simply want some piece of mind knowing that your data is copied and stored locally, then a RAID array might be a great storage solution. In short, a RAID array is a group of two or more independent hard drives that work together to basically form one super hard drive.

For more info, check this out:

If you're running the new iMac Pro and want to pick up a great RAID system, then check these out!

G-RAID

G-Technology makes excellent hard drives, so it's no surprise that its RAID systems make this list. The G-RAID with Thunderbolt 3 is perfect for your high-performance storage needs. The enclosure features two Thunderbolt 3 ports, a USB-C ports, and an HDMI port that supports 4K at 60FPS, as well as HDR. You get a drive speed of 7200 RPM and transfer rates of up to 500MB/s.

You can daisy chain up to five more of these puppies, and there's a 5-year warranty should you experience any defects.

The G-RAID features two removable drives and starts around $650 for 8TB. You can go all the way up to 24TB for $1600.

G-Speed Shuttle XL

The G-Speed Shuttle XL is for the professional who needs it ALL. It offers 7200 RPM drive speeds and transfer rates of up to 1500MB/s, as well as two Thunderbolt 3 ports. You also get eight removable drives and starting storage capacity is 24TB. It's expensive AF, with a starting price of $2800, and you can go all the way up to 72TB for a whopping $7700.

This definitely isn't a consumer-level product, but if you're opting for the iMac Pro for your business, then this is a huge amount of storage and performance that's nigh-unbeatable. It supports RAID 0, 1, 5, 6, and 10 configurations.

If you have a power- and resource-hungry workflow, then this might be the solution for you.

PROMISE Pegasus3

Recommended right on Apple's site, the PROMISE Pegasus3 is 12TB of kickapow. It features four drives at 3TB each (also available with four, six, or eight drives) and two Thunderbolt 3 ports, which are backward compatible with older Macs that support Thunderbolt 2 (you just need a 3-2 cable!).

You can daisy chain up to six devices with this system and you can configure it for RAID 0, 1, 5, 6, and 10. At $1500, this is pricey, but you can go with one of the lesser versions if you don't need 12TB.

Glyph Atom RAID SSD

The Glyph Atom is a bit of an outlier on this list in that it's a self-contained RAID 0 solution, so it's all about performance and pretty much not at all about data replication. This drive is already formatted for Mac and fully compatible with Thunderbolt 3.

It's a 1TB solid state drive, making it perfect for smaller projects, with transfer speeds of up to 770MB/s. This portable RAID solution comes in black, white, gold, gray, and silver, and features a rugged enclosure that's designed to be taken on the road with you. It's perfect if you have all your data stored at home but really need to work on that one thing while you're out.

At $430, it's not a bad deal for 1TB, and there's a 2TB version available for $830 if you need more space.

What's your RAID array like?

Do you have a great Thunderbolt 3-compatible RAID system? Let us know in the comments below!

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