The Pegasus R4i, built for Mac Pro (2019), is a plug-and-play RAID MPX module with four 8TB swappable 7200rpm SATA HDDs, providing 32TB of raw storage. The Pegasus R4i comes preformatted in HW RAID 5. macOS Catalina includes built-in support, too, so you can get started using the volume immediately after installation.
RAID ('Redundant Array of Inexpensive Disks' or 'Redundant Array of Independent Disks') is a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for the purposes of data redundancy, performance improvement, or both.This was in contrast to the previous concept of highly reliable mainframe disk drives referred to as 'single. With the new Mac Pro offering increased internal data storage, we investigate whether using the software RAID functionality built into OS X has any benefits for audio applications. If you've done any research on the Mac Pro (or have read this month's review, starting on page 124), one thing that. A RAID distributes data across volumes in different ways, depending on the “level” of RAID you choose. Note: Though the terms “volume” and “drive” are sometimes used interchangeably, it is important to understand that a volume resides on one or more drives.
Install the Pegasus R4i module in slots 1-2 of Mac Pro
For best performance, Apple recommends that you install the Pegasus R4i module in slots 1-2 of your Mac Pro. You might have to move an existing MPX module from slots 1-2 to slots 3-4 in your Mac Pro. You can also find installation instructions in the quick start guide in the Pegasus R4i package and on the Promise website.
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Restart Mac Pro and install the Pegasus Utility Software
Once you've installed the module and restarted your Mac Pro, the Pegasus R4i appears as a volume. When Mac Pro first recognizes the module, you’ll hear a series of tones from the module itself. And you’ll hear another set of tones when you log in and the volume mounts successfully. To manage the Pegasus R4i, install the Pegasus Utility software. The installer is located on the Pegasus volume. For help using the Pegasus Utility to manage your RAID volume, visit the Promise website.
Turn off Power Nap
As a final step, turn off Power Nap on your Mac Pro: in the Finder, choose System Preferences > Energy Saver, then deselect Enable Power Nap. Adobe after effects cs6 portable.
![Raid Raid](/uploads/1/2/4/4/124404084/369626760.jpg)
Before shipping, always remove the Pegasus R4i Storage Module from your Mac Pro to avoid damaging your computer.
Disk Utility User Guide
You can create a Redundant Array of Independent Disks (RAID) set to optimize storage performance and increase reliability in case of a disk failure. You can also create a set that concatenates smaller disks to act as one larger disk.
- In the Disk Utility app on your Mac, choose File > RAID Assistant.
- Select a set type:
- Striped (RAID 0) set: A striped RAID set can speed up access to your data. You can’t create a RAID set on your startup disk; you must first start up your computer from another disk.
- Mirrored (RAID 1) set: Protect your data against hardware failure with a mirrored RAID set. When you create a mirrored RAID set, your data is written to multiple disks so the information is stored redundantly. You can’t create a RAID set on your startup disk; you must first start up your computer from another disk.
- Concatenated (JBOD) set: Increase storage space with a concatenated disk set. If you need one large disk, but you have several smaller disks, you can create a concatenated disk set to use as one large disk.
- Select the checkboxes of the disks you want to include in the set.
- For each disk, click the pop-up menu in the Role column and choose “RAID slice” or “Spare” to designate the disk as a standard member or spare in the set, then click Next.
- Enter a name for the RAID set in the RAID Name field.
- Click the Format pop-up menu, then choose a volume format that you want for all the disks in the set. (See File system formats available in Disk Utility.)
- Click the “Chunk size” pop-up menu, then choose a disk chunk size that you want used for all the disks.When you create a striped set, chunks of data from the same file are distributed across the drives. Ideally, you want data distributed across drives evenly and at an optimum size so that it can be efficiently accessed. If you want high data throughput from your set, choose a smaller chunk size so that data is spread across the drives and one drive can be accessing data while another is seeking the next chunk. With mirrored disk sets, choose a chunk size that matches the data you’re accessing. For example, when working with video files, your Mac is accessing large chunks of data, whereas when using a database of many small records, your disks may be accessing smaller chunks of information.
- If you are creating a mirrored RAID set, select the “Automatically rebuild” checkbox to allow the set to be automatically rebuilt when member disks are reconnected.
- Click Create.
- Click Done.
What Is Raid Utility For Mac
If you have a Mac Pro with a Mac Pro RAID card, use RAID Utility. It uses the RAID card for better performance and to create more types of RAID sets.
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See alsoOverview of creating disk sets using Disk Utility on MacDelete a disk set using Disk Utility on MacUnmount a disk set or disk member using Disk Utility on MacRepair a disk in a mirrored disk set using Disk Utility on MacAdd a disk to a disk set using Disk Utility on Mac