User manual

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Promise Technologies Pegasus J4User Manual
J4 Description
e Pegasus J4 from PROMISE Technology is a high-performance direct attached storage JBOD system
featuring Intel® underbolt™ connection technology. e J4 system is perfect for use in non-linear editing
of digital media or other data storage applications where very high throughput and very low latency is
required. e compact and ecient design of the J4 means it is easy to pack up and transport, so it is well-
suited for use paired with a underbolt ready computer to use as a mobile video editing station.
ere are two versions of the J4 available, a plug and play version that includes installed storage drives
that are congured for immediate use; and a DIY version that requires installation of four 2.5” SATA drives
(HDD or SSD). Once the drives are installed in the DIY version, the four storage disks are congured for
RAID operation using the Disk Utility in the Macintosh OS or in Windows OS. Both versions of the J4
require a underbolt cable (not included) for use with a underbolt ready computer.
ere is a device driver for the underbolt connection required for installation plus an optional soware
J4 Firmware Updater for device monitoring and rmware updates. e device driver is available for Mac OS
using the Mac OS update procedure. e disks can be arranged as a striped RAID set, a mirrored RAID set,
a JBOD set, or in a combination of these options.
e two underbolt ports on the J4 mean that it can be daisy-chained with other Pegasus devices or
other underbolt ready devices, including a display. e daisy-chain connection of all underbolt devices
functions at full speed regardless of whether or not the other devices are powered on.
client os support
e following client operating systems support the Pegasus unit:
• MacOS10.7andhigher
• MacBookPro/iMacSowareUpdate1.5
utility os support
e following client operating systems support the Promise Utility:
• MacOS10.7andhigher
• MacBookPro/iMacSowareUpdate1.5
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CAUTION
The electronic components within the device are sensitive to damage from
Electro-Static Discharge (ESD). Observe appropriate precautions at all times when
handling this device or its subassemblies.
CAUTION
The electronic components within the device are sensitive to damage from
Electro-Static Discharge (ESD). Observe appropriate precautions at all times when
handling this device or its subassemblies.
!