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v Model 7VH comes with 1 GB cache per controller, two host ports per controller, a
v Model 7VA is the same as Model 7VH except that you can select either 2, 4, 8,
Note: DS4200 Express models 7VH and 7VA have a Submodel ID of 51. The
Contact your IBM sales representatives or reseller for more information on the
various DS4200 Express models and options.
Operating system support
Microsoft
Server and Enterprise Edition, Sun
Server, and SuSE Linux Enterprise Server, IBM Linux on Power (LoP), HP HP-UX,
Novell Netware and VMware ESX are the supported operating systems for host
servers that have mapped LUNs created in the DS4200 Express with storage
expansion enclosures. See the latest DS4000 Storage Manager host software
readme file and the IBM DS4000 series products interoperability matrix at the
following Web site for additional host operating system support:
www.storage.ibm.com/disk/fastt/supserver.htm
Fibre channel defined
Fibre channel technology is outlined in the SCSI-3 Fibre Channel Protocol
(SCSI-FCP) standard. Fibre channel is a high-speed data transport technology that
is used for mass storage and networking.
Using a fibre-channel arbitrated loop (FC-AL), more than 100 fibre-channel devices
can be supported, compared to 15 small computer system interface (SCSI) devices.
The fibre channel connection speed from the DS4200 Express to storage expansion
enclosures is either a 2 Gbps or 4 Gbps fibre-channel interface speed that supports
data transfer rates up to 400 MBps half-duplex and 800 MBps full-duplex on optical
interfaces.
SATA defined
The Serial Advanced Technology Attachment (SATA) interface offers increased data
rate performance over Parallel Advanced Technology Attachment (ATA), while
maintaining the benefits of ATA. SATA is designed to overcome the performance
barriers that have been forecasted for current parallel technologies while
2
IBM System Storage DS4200 Express Storage Subsystem: Installation, User's and Maintenance Guide
dual-ported drive channel, and two storage partitions premium feature, which you
can upgrade to 4, 8, 16 or 64 partitions when you purchase storage partitioning
upgrades (2 to 4, 2 to 8, 2 to 16, 2 to 64, 4 to 8, 4 to 16, 4 to 64, 8 to 16, 8 to
64, and 16 to 64). Model 7VH can also be upgraded to support Copy Services
premium features like FlashCopy, VolumeCopy and Enhanced Remote Mirroring
when you purchase those additional Copy Services premium feature options.
Model 7VH also includes the Windows
not come with DS4000 drive expansion enclosure attachment entitlements. You
can purchase either 1 to 3 drive expansion or both 1 to 3 and 4 to 6 drive
expansion enclosures attachment entitlements to connect up to three or six
EXP420 storage expansion enclosures to the DS4200 Express controllers.
16 or 64 partitions and select one host kit from the list of available DS4000 host
kit attachments when placing the order instead of having two storage partition
premium feature and a Windows Host kit shipped as standard.
DS4700 Storage Subsystem Workstation model has a Submodel ID of 19.
See "Finding controller, storage expansion enclosure, and drive information"
on page 86 for details on how to locate a storage subsystem's Submodel ID.
®
Windows 2000 Server and Advance Server, Microsoft Windows 2003
®
Host kit as standard. Model 7VH does
®
®
Solaris, IBM AIX
, RedHat Enterprise Linux
®
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