tag:blogger.com,1999:blog-5391325129965939458.post7455641148236863495..comments2024-03-18T01:53:00.753+01:00Comments on AIX for System Administrators: POWERVM - LPMaixhttp://www.blogger.com/profile/11198511213080760662noreply@blogger.comBlogger43125tag:blogger.com,1999:blog-5391325129965939458.post-10532976891602398242022-10-11T19:33:31.977+02:002022-10-11T19:33:31.977+02:00please check in errptplease check in errptAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-80538639821357333022022-04-28T14:20:07.332+02:002022-04-28T14:20:07.332+02:00Thanks for posting this. It helps me a lot. Could ...Thanks for posting this. It helps me a lot. Could you please let me know how could I start and stop the LPM application which is hosted in AIX lpar.JOY GHOSHhttps://www.blogger.com/profile/01766697108180997219noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-71408766975729700662020-11-26T17:04:48.575+01:002020-11-26T17:04:48.575+01:00"changing""changing"<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-46393963754702101752020-11-26T09:21:00.674+01:002020-11-26T09:21:00.674+01:00Thank you for the link. Thank you for the link. Harryhttps://www.blogger.com/profile/16191410385147057633noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-4515915976656665702020-11-26T03:57:12.859+01:002020-11-26T03:57:12.859+01:00Good article ! Thanks !
If I am checking both vfc_...Good article ! Thanks !<br />If I am checking both vfc_mapping and vswitch_mapping during LPM using CLI, is the profile changed on the destination? When does it happen?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-90966075771061510332020-09-11T16:56:56.536+02:002020-09-11T16:56:56.536+02:00Hi, I have found this IBM paper from 2011, maybe i...Hi, I have found this IBM paper from 2011, maybe it is not valid anymore, probably you should check it with IBM:<br />https://levipereira.files.wordpress.com/2011/08/lpm_a_rac_node_july-27-2001.pdf<br /><br />"At the time of writing LPM operation on an Oracle RAC node is not supported with Database and<br />Clusterware started.<br />At the end of the LPM process, during the memory block migration to the target server, a short freeze of<br />the processes may happen depending on the memory activity. The Oracle cluster mechanism<br />permanently checks the nodes connectivity and the internal monitoring processes are defined with<br />timeout delays. Then, the LPM operation may generate a delay and Oracle RAC monitoring may be<br />disturbed. In the worst case of disruption during the migration, the node will get out of the cluster and will<br />reboot. This is regular behavior of the Oracle RAC cluster. "<br />aixhttps://www.blogger.com/profile/11198511213080760662noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-74455124605978458252020-09-10T22:52:40.162+02:002020-09-10T22:52:40.162+02:00So does that mean that LPM whilst RAC running on t...So does that mean that LPM whilst RAC running on the same node is legit?Harryhttps://www.blogger.com/profile/16191410385147057633noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-14424195201392762472020-09-10T22:50:20.509+02:002020-09-10T22:50:20.509+02:00Thank you for your reply.
It's, power9, Aix 7....Thank you for your reply.<br />It's, power9, Aix 7.1, v7000 storage, NPIV, HMC930, vios 2.2.6.x <br />Harryhttps://www.blogger.com/profile/16191410385147057633noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-17118122305133327652020-09-10T22:03:17.543+02:002020-09-10T22:03:17.543+02:00Hi, without knowing any details in your case, my e...Hi, without knowing any details in your case, my experience with Oracle RAC is, that it has strict timeout requirements, which can trigger reboots. At the end of the LPM, there is a moment when the running application has to be activated on the target server, and this may cause a potential issue with a "sensitive" RAC. But this is just an idea... aixhttps://www.blogger.com/profile/11198511213080760662noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-88367095229857416372020-09-10T18:25:28.513+02:002020-09-10T18:25:28.513+02:00This is a great article. I bumped into this whilst...This is a great article. I bumped into this whilst i was looking for issue i had yesterday whilst LPM'g.<br />We have 2 PowerNodes - NodeA and NodeB, running RAC cluster with server1 and server2 respectively.<br />I was told to move Server1 (from NodeA) onto NodeB whilst RAC was still running.<br />As soon the LPM completed successfully i got a message on the HMC - lpar restarted itself.<br />I was a bit taken a back when I was told to LPM the lpar still part of the RAC cluster to be moved on to the same physical because defeat the purpose of having a cluster on a different node.<br /><br />Any pointers would be really helpful.<br />CheersHarryhttps://www.blogger.com/profile/16191410385147057633noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-69504927047452107092020-07-25T10:25:40.200+02:002020-07-25T10:25:40.200+02:00If you do with command on HMC, then it should be p...If you do with command on HMC, then it should be possible. Please check the man page of migrlpar command:<br />"Attributes that can be specified when validating or migrating a single partition:<br />dest_lpar_id - The partition ID to use on the destination managed system"aixhttps://www.blogger.com/profile/11198511213080760662noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-16929901651452102532020-07-22T22:22:53.828+02:002020-07-22T22:22:53.828+02:00Is it possible to select a Lpar Id in the destinat...Is it possible to select a Lpar Id in the destination frame? Anonymoushttps://www.blogger.com/profile/05042482238115763655noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-45423822689689453332019-07-16T07:22:14.266+02:002019-07-16T07:22:14.266+02:00Hello, this is not an AIX setting, it refers to a ...Hello, this is not an AIX setting, it refers to a setting in the Managed System. On AIX Large Pages can be used, here is a link about huge pages:<br />https://www.ibm.com/support/knowledgecenter/TI0003N/p8hat/p8hat_aixviewhgpgmem.htmaixhttps://www.blogger.com/profile/11198511213080760662noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-57207946085892928292019-07-10T22:32:08.413+02:002019-07-10T22:32:08.413+02:00Hello.
When you say: "LPAR is not using huge...Hello. <br />When you say: "LPAR is not using huge pages". Do you refer to Large Pages also? In AIX Large Pages use 16MB page size.<br />Is possible use LPM with a LPAR/AIX with Large Pages enabled?Jorgehttps://www.blogger.com/profile/06473476899628142632noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-49219701145720640032018-08-23T15:47:24.145+02:002018-08-23T15:47:24.145+02:00Is there any network changes to be made before mi...Is there any network changes to be made before migrating, VLANS are same and Both the Frames are connected to the same HMC.janahttps://www.blogger.com/profile/05470569174520884392noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-2508100732952532592018-06-15T21:55:54.112+02:002018-06-15T21:55:54.112+02:00while selecting msp option in vios general setting...while selecting msp option in vios general setting and clicking on the save button,it is throwing an error "Another operation has changed the configuration. Refresh the web page then try the operation again."<br />How to resolve this.Anonymoushttps://www.blogger.com/profile/17114932460839332215noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-2388574333433778332018-04-18T15:17:32.881+02:002018-04-18T15:17:32.881+02:00We have dual vios and lpm was working, but have su...We have dual vios and lpm was working, but have sustained a HW failure on 1 CEC. At least one VIOS seems entirely healthy and the client LPARs are still running on npiv volumes, but we'd like to lpm off before taking the system down to fix, but getting HSCLA27C. Can we rmdev -Rdl the fscsi device from the client lpars for the move and cfgmgr on the destination to re-find the same wwns and paths for mpio?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-61412282570028113522018-01-20T19:43:43.937+01:002018-01-20T19:43:43.937+01:00I have never tried. In my opinion it should work, ...I have never tried. In my opinion it should work, if everything is configured correctly.aixhttps://www.blogger.com/profile/11198511213080760662noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-66591299129665703572018-01-19T01:06:18.229+01:002018-01-19T01:06:18.229+01:00how about lpm from dual vios to frame with single...how about lpm from dual vios to frame with single vios?, is that posible?<br /><br />thanks before.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-24562736795245318662017-10-24T09:27:18.360+02:002017-10-24T09:27:18.360+02:00Hello, your setup looks OK. You can do a validati...Hello, your setup looks OK. You can do a validation first to see for yourself, but I assume it will work.aixhttps://www.blogger.com/profile/11198511213080760662noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-66696105343121199562017-10-23T12:28:03.379+02:002017-10-23T12:28:03.379+02:00Hi All,
I have a query with the below setup for d...Hi All,<br /><br />I have a query with the below setup for doing LPM.<br /><br />I have an LPAR which has disks and tape drives mapped to the lpars using npiv with disks using fsc0 and tape drives using fcs3. Disks and tape drives are mapped to both wwn numbers.It's a dual vios setup.<br /><br />Can we do LPM using command line with the above setup?<br />Please suggest.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-10028232789588922402016-07-15T16:45:08.463+02:002016-07-15T16:45:08.463+02:00Hi All,
I have two set of VIO servers each connec...Hi All,<br /><br />I have two set of VIO servers each connected on to different switches within the same fabric. <br /><br />Ex:- A,B & X,Y are two set of VIO servers<br /> SW1 & SW2 are two switches<br />A,B is connected to SW1 and X,Y is connected to SW2<br />SW1 and SW2 is interconnected via ISL(same fabric)<br /><br />Can we perform the LPM move from A,B to X,Y when both the VIO servers are connected to different switches?<br /><br /> Anonymoushttps://www.blogger.com/profile/05617550874126558581noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-46021979111572256592016-02-18T01:45:23.460+01:002016-02-18T01:45:23.460+01:00No, NPIV is required to maintain storage connectiv...No, NPIV is required to maintain storage connectivity during the migration to a different physical host... It floats the secondary WWPNs on the new Server as it spins up the new LPAR on it.Anonymoushttps://www.blogger.com/profile/13297647334704865451noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-17825632168825606192015-09-13T08:46:46.382+02:002015-09-13T08:46:46.382+02:00Hi All,
Will it be possible LPM with out NPIV ? ...Hi All,<br /><br />Will it be possible LPM with out NPIV ? <br /><br />Thanks,csr.tech.noteshttps://www.blogger.com/profile/04479432505771137088noreply@blogger.comtag:blogger.com,1999:blog-5391325129965939458.post-38483783948346173112015-09-13T06:42:13.429+02:002015-09-13T06:42:13.429+02:00Really great effort.Thanks for patience and update...Really great effort.Thanks for patience and updates.csr.tech.noteshttps://www.blogger.com/profile/04479432505771137088noreply@blogger.com