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IBM i Virtualization and Open Storage Read-me First

Vess Natchev

Cloud | Virtualization | Power Systems

IBM Rochester, MN

[email protected]

July 9

, 2010

Содержание I VIRTUALIZATION - READ ME FIRST 7-9-2010

Страница 1: ...1 IBM i Virtualization and Open Storage Read me First Vess Natchev Cloud Virtualization Power Systems IBM Rochester MN vess us ibm com July 9th 2010...

Страница 2: ...equisites for implementing IBM i hosted LPARs 4 1 Storage planning 4 2 Performance 4 3 Dual hosting 5 Implementing IBM i client LPARs with an IBM i host 6 Post install tasks and considerations 6 1 Con...

Страница 3: ...r Support ECS over LAN 11 6 Backups 12 DS4000 and DS5000 Copy Services and IBM i 12 1 FlashCopy and VolumeCopy 12 2 Enhanced Remote Mirroring ERM 13 IBM i using SAN Volume Controller SVC storage throu...

Страница 4: ...ions The most immediate benefit VIOS brings to an IBM i client partition is the ability to expand its storage portfolio to use 512 byte sector open storage Open storage volumes or logical units LUNs a...

Страница 5: ...tical devices supported on each IBM Power server model refer to the Sales Manual for each model http www ibm com common ssi index wss To determine the storage network and optical devices supported onl...

Страница 6: ...adapters are used for storage and optical virtualization virtual Ethernet adapters are used for network virtualization Note that using virtual I O resources from a host partition does not preclude an...

Страница 7: ...irtual client partition In the host partition the minimum required IBM i setup consists of the following One Network Server Description NWSD object One Network Server Storage Space NWSSTG object The N...

Страница 8: ...installing Program Temporary Fixes PTFs or applications later If the optical drive is writeable the client partition will be able to write to the physical media in the drive 3 4 Network virtualizatio...

Страница 9: ...disk I O contention create storage space objects in a separate ASP on the host Independent ASPs are supported Performance on the client s would then depend on the disk adapter and disk configuration...

Страница 10: ...g an IBM i logical partition that uses IBM i virtual I O resources using the HMC in the Power Systems Logical Partitioning Guide http publib boulder ibm com infocenter systems scope hw topic iphat iph...

Страница 11: ...orwarding of network packets from the outside LAN to the client partition on the virtual LAN That type of virtual network configuration has been used successfully for several years to provide networki...

Страница 12: ...can be as large or larger up to 1 TB but not smaller Enter the correct ASP ID The ASP where the original storage space exists is the default Optionally enter a text description Press Enter To deploy t...

Страница 13: ...13...

Страница 14: ...see the data sheet on the SVC overview Web site http www ibm com systems storage software virtualization svc Note that IBM i cannot connect directly to SVC it must do so as a client of VIOS IBM i as a...

Страница 15: ...that SATA drives are used only for test or archival IBM i applications for performance reasons DS4800 using Fibre Channel drives Yes Supported by IBM i as a client of VIOS on both IBM Power servers a...

Страница 16: ...easons DS8700 using Fibre Channel or FATA drives Yes It is strongly recommended that FATA drives are used only for test or archival IBM i applications for performance reasons XIV Storage System Yes Fi...

Страница 17: ...Yes See Section 14 of this document for details XIV firmware 10 0 1b Yes This is the minimum XIV firmware level required XIV Copy Services Yes See Section 15 of this document for details 8 IBM i using...

Страница 18: ...components for attaching open storage to IBM i illustrated in the diagram above also apply to using DS5000 XIV and other subsystems supported for this solution as listed in section 7 Two management i...

Страница 19: ...irst pair of Virtual SCSI server and client adapters when disk and optical resources are virtualized to IBM i Additional adapter pairs must be created by using the IVM command line available via a Tel...

Страница 20: ...umes or files See section 9 2 for a detailed performance discussion A vtscsiX device links a LUN available in VIOS hdiskX to a specific virtual SCSI adapter vhostX In turn the virtual SCSI adapter in...

Страница 21: ...e required on the IVM VIOS command line 8 2 3 Adding devices to VIOS VIOS does not autoscan for new devices added after the initial boot is complete When a new device such as a LUN on a storage subsys...

Страница 22: ...s recognized by IBM i as a communications port CMNxx of type 268C In VIOS the same Ethernet type of device entX is used for logical Host Ethernet ports physical and virtual Ethernet adapters VIOS prov...

Страница 23: ...f each IBM i virtual client partition 9 2 Performance When creating an open storage LUN configuration for IBM i as a client of VIOS it is crucial to plan for both capacity and performance It may seem...

Страница 24: ...ntenance mirroring will be suspended but the IBM i client will continue to operate When the inactive VIOS is either recovered or restarted mirroring can be resumed in IBM i 9 3 2 Path redundancy to a...

Страница 25: ...chdev dev hdiskX attr algorithm fail_over These commands must be repeated for each hdisk 9 3 2 2 Redundant VIOS LPARs with client side MPIO Beginning with IBM i 6 1 with Licensed Internal Code LIC 6 1...

Страница 26: ...hat must be changed These must be set via a Telnet or SSH session on both VIOS partitions The first group of settings is applied to each of the fscsiX devices being used To show the current fscsiX dev...

Страница 27: ...supported on your storage subsystem for VIOS download and install the driver following the instructions in the Multi path Subsystem Device Driver User s Guide at the same location 10 Attaching open s...

Страница 28: ...e correct LUNs to IBM i If storage changes are made while VIOS and IBM i are running it will still be necessary to Telnet to VIOS and run the cfgdev command to discover newly added storage prior to us...

Страница 29: ...n is installed and running the first system management step is to configure networking There are three types of network adapters that can be assigned to an IBM i client partition A standard physical n...

Страница 30: ...to select Serviceability Control Panel Functions then the desired function If the system is IVM managed follow these steps In IVM click View Modify Partitions Select the IBM i partition Use the More...

Страница 31: ...r to the IBM i client partition consult the topic Managing physical I O devices and slots dynamically using the HMC in the Logical Partitioning Guide http publib boulder ibm com infocenter systems sco...

Страница 32: ...and require the corresponding skill set Note also that support for this solution will be provided by multiple IBM support organizations and not solely by the IBM i Support Center Support statements DS...

Страница 33: ...and VolumeCopy of Independent Auxiliary Storage Pools IASPs are not supported Having the production and backup IBM i LPAR under the same VIOS is not supported For assistance with using DS4000 and DS50...

Страница 34: ...00 Global Copy is not supported Full system ERM Metro and Global Mirror for a planned switchover IBM i production LPAR is powered off is supported Full system ERM Metro and Global Mirror for an unplan...

Страница 35: ...ions in chapters 3 and 4 of the Redbook Implementing the IBM System Storage SAN Volume Controller V4 3 SG246423 available at http www redbooks ibm com abstracts sg246423 html Open To create VDisks for...

Страница 36: ...VC FlashCopy is supported by IBM i as a client of VIOS on both IBM Power servers and IBM Power blades Full system FlashCopy when the production IBM i logical partition LPAR is powered off is supported...

Страница 37: ...ents of the solution SVC Metro or Global Mirror VIOS and IBM i must be managed separately and require the corresponding skill set Note also that support for this solution will be provided by multiple...

Страница 38: ...e supported by IBM i as a client of VIOS on both IBM Power servers and IBM Power blades Full system snapshots and Volume Copy when the production IBM i logical partition LPAR is powered off are suppor...

Страница 39: ...adapters on the Power server owned by IBM i to the host channel ports on the storage is supported this approach decreases the flexibility of the SAN environment Therefore direct attachment in this cas...

Страница 40: ...ed to be the very first LUN mapped to IBM i When performing an Initial Program Load IPL an active path to the load source LUN is required Path failover is not possible during IPL however once IPL is c...

Страница 41: ...en creating a host for direct IBM i attachment on the storage subsystem the host type should be IBM i To configure the SAN fabric follow the instructions from your FC switch manufacturer To create the...

Страница 42: ...rectly share a single FC adapter among multiple client LPARs Unlike Virtual SCSI VSCSI NPIV does not map a LUN to a virtual target device in VIOS which the client LPAR can then access as a generic SCS...

Страница 43: ...t be NPIV capable The rest of the SAN fabric does not need to be NPIV capable 17 2 Supported hardware and software As of the publication date NPIV for IBM i supports only the following hardware and so...

Страница 44: ...M i A tape library and a drive within will also report the correct device names and types such as TAPMLBxx 3584 and TAPxx 3580 004 All tape operations supported with direct FC attachment are supported...

Страница 45: ...er http publib boulder ibm com infocenter systems scope i5os topic rzahc rzahcbladei5limit s htm IBM PowerHA for IBM i http www 304 ibm com jct03001c systems power software availability i5os html 18 2...

Страница 46: ...ks ibm com abstracts sg247590 html Open 18 4 SVC SVC overview Web site http www ibm com systems storage software virtualization svc Interoperability information http www ibm com systems storage softwa...

Страница 47: ...ange without notice reseller prices may vary IBM hardware products are manufactured from new parts or new and serviceable used parts Regardless our warranty terms apply Any performance data contained...

Страница 48: ...marks and the Power and Power org logos and related marks are trademarks and service marks licensed by Power org UNIX is a registered trademark of The Open Group in the United States other countries o...

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