McFiver PCIe Card
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FAQ (9)
IDArticle TitlePost Date
814 I'm getting low throughput on macOS. How can I fix this?May-26-22
976 In a Mac Pro, the SSDs are seen as external drives, how do I prevent accidental ejects?Feb-14-23
1069 How do I configure RAID under Windows 10?Feb-14-23
1073 How do I configure RAID under macOS?Feb-14-23
Create a disk set using Disk Utility on macOS

1. You can create a Redundant Array of Independent SSDs (RAID) set to optimize storage performance, or increase reliability in case of a SSD failure. You can also create a set that concatenates smaller SSDs to act as one larger SSD.

2. In the Disk Utility app on your Mac, choose File Menu -> RAID Assistant.

3. 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 a startup SSD; you must start up your computer from a single SSD.

• 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 SSDs so the information is stored redundantly. You can't create a RAID set on a startup SSD; you must start up your computer from a single SSD.

• Concatenated Set: Increase storage space with a concatenated SSD set. If you need one large SSD, but you have several smaller SSDs, you can create a concatenated SSD set to use as one large SSD.

4. Select the checkboxes of the SSDs you want to include in the set.

5. For each SSD, 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.

6. Enter a name for the RAID set in the RAID Name field.

7. 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.)

8. 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 SSDs. Ideally, you want data distributed across SSDs 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 are 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.

9. 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.

10. Click Create.

11. Click Done.
 
1077 Programming SSDs to 4k Block Size for Compatibility With macOS 10.13.6Feb-08-23
macOS 10.14.6 supports both 512 and 4k block size SSDs, but macOS 10.13.6 supports only 4k block size SSDs. Today, most SSDs are shipped from the factory programmed with a 4k block size. If your SSDs are programmed with 512 block size, however, and you need to be compatible with macOS 10.13.6, you must reprogram your SSDs to a 4k block size. Sonnet has written a script to do this, but it needs to be run on a Linux computer. You can download the instructions here. For a copy of the script, contact support@sonnettech.com.
 
1122 Thunderbolt 3 NVMe volumes may experience a stop error under Windows 10 version 20H2Feb-14-23
This is a Windows 10 known issue. It has been resolved in KB4586853 (OS Builds 19041.662 and 19042.662).

 
1136 How can I use my new SSD volume to hold my user folder on macOS?Feb-14-23
1183 The Write performance of my SSD is very slow under Windows.Feb-14-23
1189 The x8 PCIe lanes can deliver up to 7.8 GB/s. How do you fit the RAID, the 10gig lan and the 2x USB 3.2 in this bandwidth?Jun-08-22