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368 DS8000 Series: Concepts and Architecture
For a detailed description of VDS, refer to the Microsoft Windows Server 2003 Virtual Disk
Service Technical Reference
at:
http://www.microsoft.com/Resources/Documentation/windowsserv/2003/all/techref/en-us/W2K3TR_
vds_intro.asp
The DS8000 can act as a VDS hardware provider. The implementation is based on the DS
Common Information Model (CIM) agent, a middleware application that provides a
CIM-compliant interface. The Microsoft Virtual Disk Service uses the CIM technology to list
information and manage LUNs. See the
IBM TotalStorage DS Open Application Programming
Interface Reference
, GC35-0493, for information on how to install and configure VDS
support.
The following sections present examples of VDS integration with advanced functions of the
DS8000 storage systems that became possible with the implementation of the DS CIM agent.
Geographically Dispersed Sites
Geographically Dispersed Sites (GDS) for MSCS is designed to provide high availability and a
disaster recovery solution for clustered Microsoft Server environments. It integrates Microsoft
Cluster Service (MSCS) and the Metro Mirror (PPRC) feature of the DS8000. It is designed to
allow Microsoft Cluster installations to span geographically dispersed sites and help protect
clients from site disasters or storage system failures. This solution is offered through IBM
storage services.
For more details about GDS refer to:
http://www.ibm.com/servers/storage/solutions/business_continuity/pdf/IBM_TotalStorage_GDS_W
hitepaper.pdf
Volume Shadow Copy Service
The Volume Shadow Copy Service provides a mechanism for creating consistent
point-in-time copies of data, known as shadow copies. It integrates IBM TotalStorage
FlashCopy to produce consistent shadow copies, while also coordinating with business
applications, file-system services, backup applications and fast-recovery solutions.
For more information refer to:
http://www.microsoft.com/resources/documentation/WindowsServ/2003/all/techref/en-us/w2k3tr_
vss_how.asp
HP OpenVMS
DS8000 supports FC attachment of OpenVMS Alpha systems with operating system
Version 7.3 or newer. For details regarding operating system versions and HBA types, see
the
DS8000 Interoperability Matrix, available at:
http://www.ibm.com/servers/storage/disk/ds8000/interop.html
The support includes clustering and multiple paths (exploiting the OpenVMS built-in
multipathing). Boot support is available via Request for Price Quotations (RPQ). The DS API
and the DS CLI are currently not available for OpenVMS.
FC port configuration
The OpenVMS FC driver has some limitations in handling FC error recovery. The operating
system may react to some situations with MountVerify conditions which are not recoverable.
Affected processes may hang and eventually stop.
- The IBM TotalStorage Storage 1
- DS8000 Series:s: 1
- Contents ix 11
- Contents xi 13
- Floating spares 100
- Hot plugable DDMs 100
- 4.7 Power and cooling 101
- 4.7.1 Building power loss 102
- 4.8 Microcode updates 103
- 4.9 Management console 104
- 4.10 Summary 104
- Virtualization concepts 105
- LPAR Hypervisor 107
- Storage enclosure pair 108
- Loop 1 Loop 2 109
- 5.3.3 Ranks 110
- 5.3.4 Extent pools 111
- Extent Pool CKD0 112
- Extent Pool CKD1 112
- Extent Pool FBtest 112
- Extent Pool FBprod 112
- 5.3.5 Logical volumes 113
- Allocate a 3 GB LUN 115
- Logical 115
- 3 GB LUN 115
- 2.9 GB LUN 115
- LSS X'17' 117
- LSS X'18' 117
- DB2-test 117
- 5.3.7 Volume access 118
- Host attachment 119
- Volume group 119
- 5.3.9 Placement of data 121
- Host LVM volume 122
- Model Naming Conventions 126
- 6.1.2 DS8100 Model 921 127
- 6.2 Model comparison 130
- 6.3 Designed for scalability 131
- Adding DDMs 132
- Future plan 132
- 2-way I/O controllers 133
- 4-way I/O controllers 134
- Model Conversions 135
- 137
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