D-Link DAS-3324G - Manual (Page 47)

D-Link Product Guide 2008
1
Features & Benefits
D-Link Product Guide 2008
1
These Storage Area Networks (SANs) are designed to provide a reliable network
data storage solution for customers in entry-level and SMB segments. Utilizing a 10-
Gigabit iSCSI System-on-a-Chip (SoC) solution that can handle over 65,000 I/Os per
second and capable of supporting over 11TB raw capacity using high-capacity hard
drives, these SANs can easily be implemented as near line storage to supplement
primary IP network storage solution or be used as a basic backup and recovery device.
This evolutionary advancement in performance is a testament to the tightly integrated
xStack Storage architecture and is a sharp contrast to the discrete implementation of
competing products.
SAN has been traditionally reserved for Fiber Channel networks until the recent
introduction of iSCSI that extends this powerful yet simple centralized backend
(behind server-based) storage system to IP networks. By utilizing existing Ethernet
technology, the cost associated with separate host bus adapters and the per-
Gigabyte cost for storage is significantly reduced. IP SAN based on iSCSI technology
can leverage existing and familiar Ethernet standards to provide speeds of up to
1160MBytes bandwidth.
D-Link SAN Array implements multiple Gigabit ports and supports IEEE 802.3ad Link
Aggregation Groups (LAG) for full offload capability so that multiple ports can be
grouped together for increased throughput and redundancy.
D-Link SANs also provide the industry’s first built-in, fully integrated 10-Gigabit
interface, providing up to 1160MBytes bandwidth and a high performance alternative
to the multi-Gigabit Fiber Channel.
By utilizing a SoC design, D-Link SANs combine both networking and storage functions
into a single specialized Application Specific Integrated Circuit (ASIC). The SoC
solution combines 10-Gigabit iSCSI, TCP & IP offload, embedded processors, and a
storage virtualization firmware stack onto a single chip. The tight integration of these
functions eliminate interoperability, timing, and support issues found in competitive
products that offer “discrete implementation” wherein a chassis, a main motherboard,
a RAID storage controller, iSCSI software or controller, network interface cards, and
operating system software are picked separately and then assembled. D-Link SANs
outperform these discrete implementations and do so at a lower price point. They also
deliver mission critical data quickly with state-of-the-art reliability.
The SAN platform features 15 hot swappable Serial ATA (SATA) disk drive bays
supporting over 11TB raw capacity using 750GB hard drives (and even higher capacity
hard drives as they are introduced) in RAID level 0, 1, 1+0 and 5 configurations.
Users can quickly deploy a SAN using inexpensive SATA disk drives and depending
on their growing storage needs, they can simply add more drives.
recommended hard Drives
The Seagate Barracuda ES family of enterprise class SATA hard drives provides high
performance with very high reliability for business critical applications.
St3250620NS 250GB
St3400620NS 400GB
St3500630NS 500GB
St3750640NS 750GB
StorAGE ArEA NEtWorKS
● Embedded Centralized
Storage Management
» Embedded IP-SAN Device Manager
(IDM) allows monitoring and control of
SAN via SMI-S (Storage Management
Initiative) command set.
» Embedded secure server for remote
configuration/monitoring of SAN storage
subsystems.
● Advanced Management
Features
» Additional advanced features for efficient
management of network storage and
optimal performance.
● Adaptive/Persistent Cache
Management
» Provides write-back, write-through, write
coalescing, multi-stream read-ahead on
a volume basis.
» Optimizes cache utilization and
performance in an application
dependent manner.
● VLAN Zoning
» 802.1Q VLAN tagging to segregate
traffic into isolated zones for secure
access.
» Jumbo frames to improve network
throughput/reduce CPU overhead.
● QoS
» 802.1p Priority Queues for time-
sensitive packets.
● Volume Virtualization
» Storage management software stack for
volume virtualization utilizing concept of
storage extents.
» Fundamental building blocks to enable
RAID, online capacity expansion,
volume migration.
» Drives of dissimilar sizes can be used to
create volumes.
» Growth can occur without volume
migration or reconstruction.
» Single drives can contain multiple and
divergent RAID technologies.
» Volume structure can provide
infrastructure for Snapshot copies.
● rAID Support
» RAID Levels 0, 1, 1+0, 5 and JBOD
(striped sets, mirrored sets, striped
mirrored sets, parity sets and JBOD)
STORAGE
™
DSN-2100
● Entry-Level Nearline Storage Solution
● Integrated iSCSI System-on-a-Chip
(SoC)
● 4 10/100/1000BASE-T Ports
● 8 Drive Bays
● Over 6TB Capacity with 750GB Hard
Drives
● Embedded Disk Controller Supporting
RAID Levels 0, 1, 1+0, 5 & JBOD
● Up to 425MB Bandwidth
● 256MB to 4GB (256MB Standard) Cache
Memory
● 72 hrs Full Charge Battery Backup for
Cache
● Can Be Used as Replacement of Direct-
Attached Storage (DAS) Drives
DSN-3400
10-Gigabit iSCSI SAN Array Gigabit iSCSI SAN Array
● Fiber Nearline Storage Solution
● Integrated iSCSI System-on-a-Chip
(SoC)
● 1 10-Gigabit Port
● 15 Drive Bays
● Over 11TB Capacity with 750GB Hard
Drives
● Embedded Disk Controller Supporting
RAID Levels 0, 1, 1+0, 5 & JBOD
● Up to 1,160Mbytes Bandwidth
● 256MB to 4GB (256MB Standard) Cache
Memory
● 72 hrs Full Charge Battery Backup for
Cache
DSN-3200
● Mid-Range Nearline Storage Solution
● Integrated iSCSI System-on-a-Chip
(SoC)
● 8 10/100/1000BASE-T Ports
● 15 Drive Bays
● Over 11TB Capacity with 750GB Hard
Drives
● Embedded Disk Controller Supporting
RAID Levels 0, 1, 1+0, 5 & JBOD
● Up to 850MB Bandwidth
● 256MB to 4GB (256MB Standard) Cache
Memory
● 72 hrs Full Charge Battery Backup for
Cache
Gigabit iSCSI SAN Array
● Micro rebuilds
» Protection against unresponsive SATA
commands by forcing a response within a
preset time limit.
● online Capacity Expansion and
rAID Level Migration
» Volumes can be expanded and/or migrated
to other RAID levels while online and with
minimal impact on users. For example, a
mirror volume of two drives can easily be
converted to a parity volume of three or more
drives while users continue to access this
storage.