- #Promise pegasus r4 replace all drives install#
- #Promise pegasus r4 replace all drives driver#
- #Promise pegasus r4 replace all drives mac#
These are regular laptop drives that spin at 5,400rpm. Our review unit came with four Toshiba 500GB internal drives, model MQ01ABD050. After that you need to use Disk Utility to configure the internal drives, which took just a few minutes in my trials.
#Promise pegasus r4 replace all drives driver#
(To find out more about different ways to set up internal drives, check out this post.)Īpart from installing the internal drives, which is only necessary if you get the diskless version of the J4, setting up the device involves installing its software driver from an included CD (or you can download it from Promise's Web site). Since the J4 works only with Macs, it offers three hard-drive configuration options: RAID 0, RAID 1, and JBOD. This means the J4 can only provide software RAID configurations that the operating system natively supports. This is because the R4 (like the R6) is a hardware RAID storage system, while the J devices are JBOD storage systems. This fan is quiet, and the J4 emits almost no sound and very little heat during operation.ĭespite the difference in physical size and the number of drive bays, the Pegasus J4 is the next step up from the tiny Promise J2, and is not comparable to the four-bay Pegasus R4. On the bottom, the J4 has a user-replaceable ventilation fan.
#Promise pegasus r4 replace all drives mac#
Most of the time, turning it off is unnecessary since the device's power status is linked to that of the Mac it's connected to: it goes to sleep when the computer is in sleep mode and wakes up when the computer is awakened and so on.
You need to press and hold this button for a few seconds to turn the drive off. On the back are two Thunderbolt ports, the power connector, and a power button. There's an array of small LED lights on the front that shows the device's status. With an aluminum and plastic body, the J4 looks good. Promise says it's contemplating a better design for the next version of the J4. The only good thing is that you can't accidentally remove a drive, which might lead to data loss. Taking off the top is quite easy, and installing all four drives takes just a few minutes, but still, this is a backward design.
#Promise pegasus r4 replace all drives install#
Here, in order to install or remove drives, you need to use the screwdriver again, since each drive is secured to the chassis by another screw. The Promise J4 is about the size of a Mac Mini, and you have to undo five screws on the bottom and lift up the top part of its chassis to get to its internal drive bays. If you don't mind bulkier storage devices, check out these alternatives for faster performance, larger capacity, and possibly lower prices. But, priced at $400 (no storage included) or $800 with 2TB, the J4 makes a decent investment. It doesn't come with the much-needed Thunderbolt cable, either. Still, lacking RAID 5, the J4 is definitely not an ideal four-bay storage solution.
On the other hand, the J4 provides better performance and is more affordable. While the Drobo Mini's drive-bay design is great, the Promise J4 requires you to open its chassis to install and replace its storage drives.
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