Creating virtual optical device on vios practical guide. The map software category contains programs that are used to navigate, plot, and plan trips and destinations utilizing gps, charts, or spatial mapping data. Disk mapping utility software free download disk mapping. Find instructions for mapping a virtual disk on a client logical partition to its physical disk on the virtual io server.
How to manage virtual io server using command line tech. Because support for virtual cdrom devices was introduced in vios 1. Find answers to what vios disks are mapped to which lpar. I would assume lsmap vadapter would do the trick as it has a client partition id field. We have a frame the uses 2 vios that assign disk storage to lpars. Welcome aix mounting an iso image on vio client lpar mounting an iso image on vio client lpar 2 likes updated 5. How to mapping a disk from vio server to lpar in aix. The vio client lpars will go to the other vio server for their disk and network resources. Mapping a virtual disk on lpar to physical disk on vio server alright, so here i begin my notes along the way on things i work. On one vio it is helpful to have a 3rd disk to use for file backed optical if you use it gets it out of rootvg. Vios works by owning a physical resource and mapping that physical resource to virtual resources.
We have a lpar with multiple disk and i want to know how do i tell which vio is serving the disk. Mapping virtual disks to physical disks find instructions for mapping a virtual disk on a client logical partition to its physical disk on the virtual io server. He writes troubleshooting content and is the general manager of lifewire. Posted by bibhuti bhusan on may 26, 2015 june 19, 2015. Then login to aix lpar which is client of vio server and well connected to vio. Mapping virtual scsi disk on vio servers ibm systems media. We have a frame the uses 2 vios that assign disk storage to lpar s.
You would suffer from client lpar failures resulting in the downtime of key businesscritical applications. Therefore, the other vio server can not access the disk on the back end. Especially when you be requested to expand a disk or decommission a disk. It is also used to get to this page, the hardware product announcement and to select another map. Power systems san multipath configuration using npiv. Advantages of this command is, if you have 6 virtual disks on the lpar from the vios, then we will get all the 6 virtual disks associated with the vhosts name on the vios. How do you know which of your partitions a vhost is assigned to. You will need the lun id as it helps to identify the disk you are working on while setting it up. In my previous article, i showed how you can use nmon in vios to display the performance statistics of hdisks that are mapped to client lpars. This table provides the installed software versions for the different components. For those who are not familiar with powervm technology, one of its benefits is to offer disk mapping through vios servers. Flasharray for ibm i pure1 support portal pure storage support. For example the lpar has hdisk 0, the unix and linux forums. If it is going to be on vlan 20, replace the number with a 20, ect.
Usually one virtual scsi server adapter mapped to one virtual scsi client. This is because, for doing a virtual fc server adapter to client adapter mapping both the vios and. Then, you map those lvs to vio client lpars for use, seeing. From the storage team, get the lun id of the disk that they have presented, and the size of the disk. Mapping a virtual disk on lpar to physical disk on vio server. You will need the size information in order to confirm that disk is the correct size once it is assigned to the client lpar.
Taking advantage of it can save you hbas usage, increase availability, gain flexibility in lpars, reduce costs, and so on. Hello guys, it would be so nice of you if someone can provide me with these informations. Create a virtual target device on a vio server and maps to physical volume. After vio and lpar pairing is done disklv can be assigned using vio commands. When owned by a vios lpar they can be shared to other lpars. How to migrate lpar between 2 power trough san from vios. Power systems mounting an iso image on vio client lpar. How to map the virtual scsi disk on the client partiton to the physical disk on the server partition in the following example, we are going to determine the mapping of virtual scsi disk, hdisk4 on the vio client. Can you mix traditional vscsi mapping and passthru npiv on the same adapter 5735 for both disk and tape. Lets walk through the process of mapping a virtual scsi disk to an aix lpar and ill include some tips. For example the lpar has hdisk 0, 1, 2, 3 all the same size. The system administrator uses vios logical volume manager commands to assign disks to volume groups. Disk mapping to client from dual vios using vscsi and mpioplease read the article howto. If this virtual adapter is for a vio client, then you only need to populate the vlan that this client adapter needs.
The vios lpar type allows for the creation of virtual server adapters, where a regular aix linux lpar does not. My first post is about mapping virtual disks on an lpar to the physical disk on vio server. Managementserver resource persistent attributes for ibm. Experience on hardware and software configuration, lparsdlparsvios. We have a lpar with multiple disk and i want to know how do i tell which vio is serving the. If the pvid or disk is not listed at this point, then ignore the errors from the reducevg command. One of the default settings for external backend disks is that, once the vio server gets hold of the disk, it takes control of it. Npiv, npiv in aix, npiv configuration home unix dc. The underlying layer of software used to manage the vios partition is extremely restricted in what you can and cannot do. But actual size would be very low i mean total allocated storage space on client partition lpar dlpar is minimal it can be less than tb terra bytes inorder to make storage connectivity you need two fiber channel adapters and two san switch ports considering the redundancy it would cost you more.
Install vio server with a single san path if booting vio server from san and when installation is complete, install the pure odm definition in the vio server before adding the remaining paths. Disk mapping to client from dual vios using vscsi and mpio more on unixmantra. Thats why this kind of configuration is highly used. This is a great feature that allows us to create and map virtual optical devices from the vio server to lpar client for installations of aix, updates to a new technology level service pack or make backups. After each virtual disk is created the hmc executes an inventory check of the vios instances that make up the ssp cluster. We want the client lpar to be able to switch access from 1 vio server to another at its discretion. Also, can i skip the part of removing disk from os vio, if i plan on keeping the disk within vio.
Enter the aixvio1 first entering the corresponding number on the vtmenu. Present pure luns directly to the vio server, create storage pools as needed, and create virtual disks inside these storage pools to boot the lpars from. Ibm understanding the hardware to software maps for. The luns on the aix lpar are virtualized through the vio servers using virtual scsi.
The ibm system p hypervisor is a type 1 hypervisor with the option to provide shared io via a type 2ish software vios partition. Request the luns to be mapped to the vio servers first, we. How to access an iso image on an lpar via a virtual cdrom device on a vio. This procedure shows how to map a virtual small computer serial interface scsi disk on an aix or linux client logical partition to the physical device disk or logical volume on the virtual io server. Ibm how to allocate a virtual ethernet adapter to an lpar. This can be physical disk id or lvname which you are going to map. How to find out the mapping relationships from an hdisk in an aix lpar using virtual scsi vio to backend san lun. The advanced power virtualization feature called virtual scsi allows access to physical disk devices which are assigned to the virtual io server vios. Problem mapping lun disk from vios to the lpar hello guys, it would be so nice of you if someone can provide me with these informations. Aix disk mapping to lpar first the disk has to presented to the vios and then it will presented to the lpar.
The vios server lpar has to be installed as well as the network access and storage access to the flasharray and if needed to the dvd device are already set. Mapping disks from vios to ibm i partition by using hmc gui. The vios lpar type allows for the creation of virtual server adapters, where a regular aixlinux lpar does not. How to find vhost assigned to a particular vio client. A walkthrough of the process of mapping a virtual scsi disk to an aix lpar including some tips. Create virtual devices to map all lpars according to their respective vhost adapters. Lpar and vio disk mapping we have a frame the uses 2 vios that assign disk storage to lpars. Lpm, lpar suspend and resume, and active memory sharing ams.
The administrator creates logical volumes in the virtual io server volume groups. The below procedure is to assume that we need to add a new virutal disk to the root volume group on the lpar, for that we need to map a new disk from vio server to the lpar. In our example the lpar is aixlpar2 and we have 2 vios aixvio1 and aixvio2. When you use the hmc gui to create and map virtual disks to an lpar, it only allows you to create them one at a time. I created a virtual scsi adapter on my virtual io server.
182 37 88 1492 615 1233 162 1335 1211 223 278 1041 1113 917 617 1317 677 252 703 1124 1098 1461 1224 356 473 1115 1107 775 600 1470 1119 102 1357 1166 1169 1089 1167 688 1080