The IBM® System Storage® EXN4000
Fibre Channel storage expansion unit is a Fibre Channel disk storage
device for the IBM System Storage N
series systems. Physical capacity can be scaled up to 8.4
TB for each EXN4000 added to an N series system (assuming
the EXN4000 is populated with fourteen 600 GB HDDs).
The EXN4000 is designed to provide 1-Gbps, 2-Gbps, and 4-Gbps Fibre
Channel disk expansion for the IBM System Storage N series storage controllers. EXN4000s
attached to a 2-Gbps loop must be manually configured for 2-Gbps speed.
Note: The EXN4000 4-Gbps support requires that the N series
system be running Data ONTAP 7.2.1 or higher.
The EXN4000 contains:
- Dual redundant hot-pluggable integrated power supplies and cooling
fans
- Dual redundant disk storage expansion unit switched controllers
- Fourteen hard disk drive bays
The EXN4000 Fibre Channel storage expansion unit is shipped with
a minimum of four Fibre Channel disk drives, up to a maximum of 14
disk drives (all of the same capacity). Disk drive options for the
EXN4000 include 144 GB (15,000 RPM), 300 GB (10,000 RPM or 15,000
RPM), 450 GB (15,000 RPM), and 600 GB (15,000 RPM).
Note: While the initial order must contain 14 drives, at
least four of the drives must be installed in the EXN4000 enclosure
with drive blank covers (feature 4099) covering the remaining drive
bays.