Aix 6 was announced in may 2007, and it ran as an open beta from june 2007 until the general availability ga of aix 6. For a multipath configuration, install the mpio feature windows. This article can help you to learn the best practice configuration details and considerations to optimize your ibm aix multi path io mpio solutions, and also to easily determine the mpio options that are most suitable for your applications and business needs. The lspath command or in newer technology levels, the lsmpio command can be used to determine the mpio paths that are associated with specific san ports.
To ensure reliable operation, you must verify that your configuration is supported. Recently i had to present some new luns from a netapp to my aix box. Id like to use it to recover a machine and its configuration having just a cloned storage. On other systems, setting up tcpip might involve creating and editing multiple files, executing a number of commands, setting various variables, locating values for persistence after reboot, and starting. First i had my storage administrator create a volume and lun on the filer and present it to this system. This topic describes how to set up multipath io for aix client logical partitions. Each vio servers lets call them vio1 and vio2, have 1 fiber connection each. Powermt management utility helps you manage io paths from the server to the emc storage device. Setting up a windows or mac os host to use lun storage over. Im trying to make the conversion to the builtin mpio in aix. This article does not address the attributes associated with the adapters being used to attach to the mpio. For ds3000 and ds5000 subsystems rdac is no option.
Here are some useful commands for the most popular linuxunix operating systems to find your hba wwn. For example a disk can connect to 2 fibre channel adapters, so we have 2 paths to the disk. How to run remote command on vio server 1 how to setup sea failover with load sharing configuration 1 how to setup user managed gpfs cluster using db2cluster utility 1 how to use snap command on aix 1 how to use the hmc commandline 1 howto. These subsystems are always configured as mpio devices. Ensure that there is enough free disk space available. Aix is a series of proprietary unix operating systems developed and sold by ibm for several of. I tend to believe its not a trivial one command task to retrieve a mac address from adapter in defined state, but somehow aix keeps such information. Cheat sheet for aix userrelated commands 1 cluster 3 command line hmc commands 1 common 10 unix command line mistakes 1 configuring persistent static route in linux 1 configuring tape devices on aix with npiv and vios 1 configuring virtual tape in vios 1 conversion of normal vg to big vg 1 crontab quick reference 1. Other pcms such as the aix activepassive pcm or sdd pcm implement fewer of the lsmpio features.
It is hard to keep the site running and producing new content when so many people continue reading howto find out aix unix cpu information, clock speed. Path management software is not supported for a windows 7 or mac os host connected to a unity system. Multipath io is a technique that defines more than one physical path between the computer and the storage system, which helps in faulttolerance and performanceenhancement. Aix, aix admin, aix lvm, lvm, hmc, lpar, vio, hacmp, hacmp cluster, nim, aix nim, aix virtual optical device, mksysb backup, nim restore, tl upgrade. Problem determination of these san fabrics becomes more difficult due to ever increasing complexity. To summarize, it is recommended to setup only one path when installing an aix to a san disk, then install the emc odm package then reboot the. Multipath queries with multipath command red hat enterprise linux 5.
Aix version 1, introduced in 1986 for the ibm rt pc workstation, was based. How to easily configure tcpip on your aix system summary. The lsmpio examples in this article are all from the aix activeactive pcm. Premium content you need an expert office subscription to comment. Power systems san multipath configuration using npiv aix. For a multi path configuration, install the mpio feature windows. Use the following commands to download the aix odm package version 5. Howto find out aix unix cpu information, clock speed.
Change your current directory to the installation directory by typing cd on the command line and pressing enter. New bootlist output the bootlist will now print the path id of each path on output. The optimal configuration for a device having four paths on aix is to use four physical paths to the storage subsystem with a 1. Initially when the system was i forgot to install sddpcm drivers. And lspv shows 32 new disks, so im guessing that lun is seen four times, and that there is no multipathing. This article describes the recent enhancements to the ibm aix operating system mpio software, and describes how the ibm aix lsmpio command can be used during problem determination. The alua feature is supported from linux versions sles11. The red hat customer portal delivers the knowledge, expertise, and guidance available through your red hat subscription. Search for hardware address value for mac address for specific ethernet adapter from output of netstat v. Multipath drivers for the aixpowervm operating system. Updated the aix odm for mpio version to the latest one in the command output. Adblock detected my website is made possible by displaying online advertisements to my visitors. Aix how to get ip and mac address of ethernet adapter in. It provides blocklevel access to storage devices by carrying scsi commands over a tcpip network.
Aix 6 was announced in may 2007, and it ran as an open beta from june. For most attributes and most levels of aix, attributes could historically only be changed on devices that were not in. In this article, let us discuss how to use powermt command with practical examples. Using this command you can change the operational status of a mpio multipath io device, the equivalent of dmp in hpux, and the equivalent in aix of some oem solutions for multipathing like emc2 powerpath, hitachi dlm or the ibm sdd software. In order to use this command you have to configure and enable the mpio use in aix 5. This document describes updating a p505 server from aix 5. It should not be confused with aux, apples earlier version of unix for.
Configuring hosts to access fibre channel fc or iscsi storage. Issue 02 20151020 this is the second official release. Contact your service provider for more information. The mpio driver allows more than two paths to be configured to the device, and this simplifies zoning and improves performance. Native mpio on vio hosted aix lparsplease read the article native. Aix hmcvio tips sheet, aix basics, aix commands, aix page space commands, blv commands, how t aix, useful hacmp commands, vg commands.
In the mpio path details dialog box, note the value in the target portal. We have aix lpars hosted on a dual vio server setup. Ibm is offering extended support for a limited time for a fee. Check for any existing faults on the server using the command errpt a and fix as required. How to setup sea failover with load sharing configuration. Trusted aix supports both mandatory access control mac and mandatory. Our odm defaults to roundrobin, so if you would like to take advantage of the shortestqueue setting, you will need to run the following command. Where do i find information about the aix mpio and sddpcm. All future ds4000ds5000 models will only be supported with mpio. Multipath io mpio is the supported multipath driver for the aix powervm operating system on the eseries or efseries systems.
If the device is configured using the mpio driver, there are no restrictions. This will help some customers in the interim while they migrate their systems to aix 7. You have to create dual vios instances on the system p server to avail maximum redundancy for the paths. The mpio driver has basic failover features such as faulttolerance and performance monitoring. Digging more in the path configuration for hdisk5 in ux0018. Manager for different storage arrays and different purposes. Multipath storage configurations are a key component of data centers. Refer to the netapp interoperability matrix tool for compatibility information for specific hba, multipath driver, os level, and controllerdrive tray support. Change the file permissions for the installer by running the chmod 777 smia aix 81. Contact us the unix and linux forums unix commands, linux commands, linux server, linux ubuntu, shell script, linux distros. Multipath io mpio helps provide increased availability of virtual small computer serial interface scsi resources by providing redundant paths to the resource.
The aix default activeactive pcm implements all the features of the lsmpio command. Table 1 aix commands which write control information on the disk and if and when checking for oracle disk signatures was added note in table 1 that the chdev command with attribute pvyes or pvclear which will write to the vgda information block on the disk, does not have the checking for the oracle disk signature. With aix, you can configure your tcpip network with a single command, mktcpip. I have found failed mpio path on aix and enabled that failed path as below pre overflow. I have an storage array which is not on the approved list or has any odm definitions. Paging device considerations for ams active memory sharing with lpm live partition mobility. Ads are annoying but they help keep this website running. Managing raw disks in aix to use with oracle asm oracle. You have the basic configuration information for your storage array and have a basic. Open a hmc lpar console from the aix command line using dconsole. Install the emc clariion fcp mpio support software on the aix host before configuring aix native mpio with clariion devices. If one path adapter fails, io can be routed to the remaining adapter without interruption in the application. Useful stuff i hope, at least to me, because while we all love fiber storage, before it.
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