Datasheet

Other features of the turbo option
include an increased cache size of 2GB
and an auto-sensing capability to help
detect host connectivity speed. This
auto-sensing capability adds support
for 1 Gbps Fibre Channel connectivity
to the base model’s 2 Gbps Fibre
Channel interface, allowing the DS4300
to support a wider range of devices
and thus is designed to provide greater
interoperability. The turbo option also
helps extend the copy services capabili-
ties of the DS4300 by including the
VolumeCopy feature, which is designed
to enable full replication of logical
volumes for enhanced data manage-
ment and protection. Also available is
version 9.15 with turbo option support-
ing Enhanced Remote Mirroring for
replication of logical volumes.
DS4000 Intermix feature for attachment of
Fiber Channel and Serial ATA Disk Storage
Expansion Units
The IBM TotalStorage DS4500, DS4400
and DS4300 Turbo Mid-range Disk
Systems have the capability to support
attachment of both DS4000 EXP700
and DS4000 EXP710 Fibre Channel
Disk Expansion units and DS4000
EXP100 Serial ATA Disk Expansion
units concurrently. This feature requires
the DS4500, DS4400, or DS4300
Turbo systems be upgraded to the
DS4000 Storage Manager V9.10
firmware (06.10 or later) and host-
based code (SM V9.10 or later). With
this feature, you can create and man-
age distinct array groups that are built
from either FC disks or SATA disks and
allocate logical drives to the appropriate
applications utilizing a single DS4000
system. Those applications that
demand high performance and have
high I/O rates could use the FC-based
drives, while near-line, or applications
that do not demand the higher perform-
ance can be maintained on the SATA
based-drives.
Centralized administration through DS4000
Storage Manager
The TotalStorage DS4000 Storage
Manager software included with the
DS4300 is designed to support central-
ized management of all local and net-
worked DS4000 series systems.
DS4000 Storage Manager allows
administrators to quickly configure
and monitor storage from a Java™
technology-based Web browser inter-
face. It is also designed to allow them
to customize and change settings as
well as configure new volumes, define
mappings, handle routine maintenance
and dynamically add new enclosures
and capacity to existing volumes—
without interrupting user access to
data. Failover drivers, performance-
tuning routines and cluster support are
also standard features of the DS4000
Storage Manager.
By providing these features and an intu-
itive user interface, the DS4000 Storage
Manager is designed to help reduce the
complexity of storage management and
the amount of time spent managing
storage.
The turbo option includes DS4000
Storage Manager Version 9.15, which is
designed to support up to 256 logical
volumes per storage partition, array
groups up to 2TB and the SCSI-3
Persistent Reservation facility for
enhanced server clustering applica-
tions. These additional capabilities help
the DS4300 to support larger storage
environments.