JETSTOR SAS 760J/JD Hardware Installation Guide
Page 4 of 71
1.2
INTRODUCTION
The JETSTOR SAS 760J/JD family of external storage subsystems is based on 3.5” and
2.5” SAS or SATA drives. The JETSTOR SAS 760J/JD enclosure supports 60 hot-
swappable drives. Each drive is mounted in a carrier that provides for direct-mounting the
drive and has features for mounting an optional interposer card. The interposer card
provides dual-porting functionality for SATA drives and power control functionality for
both SAS and SATA drives.
The front cavity of the enclosure contains 60 top-loadable drives. The back cavity of the
enclosure supports two IO Option slots as well as the power supplies (PCMs). Each IO
Option Slot is designed to accept SAS JBOD modules or RAID controller modules. The
IO modules are hot-swappable and provide a redundant path to the drives when two
controllers are installed in the enclosure. The IO modules each provide four 4-wide SAS
data links configured as four host or three host and one expansion port. In certain zoning
modes the controller can support two host and two expansion ports. The IO modules
support enclosure expansion based on the number of devices the host adapter can support
and the zoning configuration used. The IO modules communicate inter-IO information
using Ethernet.
The JETSTOR SAS 760J/JD enclosure houses two hot-swappable, fully redundant PCMs
(Power & Cooling Modules) located in the rear of the chassis. Each PCM has integrated
fans for cooling the chassis. A single PCM can power the JETSTOR SAS 760J/JD
enclosure indefinitely; however, both modules are required for proper cooling of the
enclosure. Each PCM will cool the JETSTOR SAS 760J/JD enclosure for a period of
time while the other PCM is not present during a remove-and-replace operation. All fans
are driven from the shared power bus to ensure operation in the event of a PCM failure.
JETSTOR SAS 760J/JD 60-Drive SAS/SATA Bulk Storage
