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6
Drive Bays
The x3400 M2 contains either
11
drive bays (in 2.5-inch models) or
7
bays (in 3.5-inch) models. 2.5-inch
models support small form-factor (SFF)
hot-swap SAS
drives. 3.5-inch models support
four hot-swap
SAS
or
SATA II
drives, or
simple-swap SATA II
drives. In addition, there are
three 5.25-inch
bays.
An internal
full-high
tape drive can be installed using
two
of the 5.25-inch drive bays; alternatively, an
internal
half-high
tape drive can be installed using
one
of the 5.25-inch drive bays. The tape drive must
have a
USB 2.0
interface.
A half-high DVD-ROM drive with a SATA interface ships standard in the other 5.25-inch bay. An external
USB floppy drive may be used, if needed.
Hot-swap drives may be inserted or removed through the front of the server without powering off the
system. Simple-swap drives may also be installed and removed through the front, but requires powering
off the server first.
For still more storage, a direct-attach, NAS or SAN external expansion option can be added, using an
optional controller.
Disk/Tape Controllers
All
hot-swap
x3400 M2 models include an integrated hardware-based IBM
ServeRAID-BR10i SAS/SATA
controller
. This controller supports up to eight internal SAS or SATA drives. (Simple-swap models use the
SATA support incorporated in the system chipset.)
The integrated
ServeRAID-BR10i
controller offers
hardware
RAID-0
/
1/1E
support. The controller provides
data transfer speeds of up to
3Gbps
6
per SAS port on an 8-lane 2.5 Gbps PCIe card. It supports both
SAS and SATA HDDs, as well as Solid-State Drives (SSDs) and tape drives.
The x3400 M2 also supports full
RAID-0/1/10/1E/5/6
support using the optional
ServeRAID-MR10i
card. It
also offers higher performance, due to the
256MB battery-backed onboard cache
.
The x3400 M2 also supports hardware based full-disk encryption with
RAID-0/1/10/1E/5/6
support using
the optional
ServeRAID-MR10is Vault
card.
For external storage, the
ServeRAID-MR10M
controller enables connection to up to four IBM System
Storage EXP3000 SAS expansion units (48 HDDs total). It provides RAID-0/1/10/5/50 support and
256MB
of onboard cache.
Internal Backup
The x3400 M2 supports several internal
tape backup
options. Supported technologies include:
•
DDS-5
(half-high)
•
DDS-6
(half-high)
•
GoVault internal dock
(half-high)
•
LTO-3 Ultrium
(half-high)
•
LTO-4 Ultrium
(half-high)
High-Performance Adapter Slots
The x3400 M2 provides six adapter slots in all, including
one x16
(“by 16”) physical/
x8
electrical
PCIe
(PCI Express)
Gen 2
full-length/full-height
adapter slot (
Slot 2
).
This means that although the slot runs
at
x8 Gen 2
speeds (
8GBps
), it can accept a x16 Gen 2 adapter in the slot.
It is also capable of
supporting
x1/x4/x8
adapters at full speed. In addition to this slot, the x3400 M2 also includes two
x8
physical/x8 electrical
Gen 2
slots (
8GBps
), two
x8 physical/x4 electrical
Gen 2
slots (
4GBps
), and one
33MHz legacy PCI
slot. As part of a configure-to-order (CTO) build two choices of PCIe riser card can be
added, with either
two 133MHz PCI-X
slots or one PCIe
x8 physical/x4 electrical Gen 1
slot (
2GBps
).
Slot
1
is a
half-length/full-height PCIe
slot;
slots 2, 3, 4
and
5
are
full-length/full-height
PCIe slots,
and
Slot 6
is a
half-length/full-height 33MHz
legacy
PCI
slot. The
PCI-X
riser contains two
full-
length/full-height
slots (
5
and
6
).
PCI Express
is a high-performance, low-latency, next-generation serial I/O bus that is rapidly replacing
the older parallel PCI and PCI-X buses. A
x16
PCIe Gen 2 adapter offers approximately
sixteeen times
the maximum throughput of a 133MHz PCI-X adapter
7
. (A
x1
Gen 1 adapter offers throughput similar to a
66MHz
PCI-X slot.)
Dual-Port Gigabit Ethernet Controller
The x3400 M2 includes
one dual-port
integrated
Broadcom 5709C
Gigabit Ethernet controller for up to
10X higher maximum throughput than a 10/100 Ethernet controller, as well as support for
PXE 2.0
6
Data transfer rates depend on many factors and are often less than the maximum possible.
7
Actual throughput will depend on the adapter vendor’s implementation.