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Operating Systems AIX New IBM Power8 (S822) and StorWiz V3700 SAN, best practices for production setup/config? Post 302932843 by bakunin on Sunday 25th of January 2015 03:28:05 PM
Old 01-25-2015
Quote:
Originally Posted by c3rb3rus
Did a fresh AIX 7.1 install on the internal scsi hdisk, mirror'ed the rootvg and made sure it can boot from both hdisks in case one fails using this guide.
This is all fine, but you should be aware that this way you will never have the possibility of LPM (live partition mobility). LPM means the ability to move an LPAR to another hardware box ("managed system" in IBM-speak) on the same HMC without even stopping it. For this to work you (obviously) must not have any non-virtualised components in the LPAR: disks, adapters, etc..

If you want LPM you need to create 1 (2) VIOS LPARs, give these all the physical adapters, then create virtual adapters and give out these to the other LPARs. Instead of physical SCSI disks you usually create LUNs on the SAN, connect them to the VIOS, give them out to the LPARs as virtual SCSI (vscsi) disks and use these. Usually this is used for boot disks, for data disks you either use the same or FC-connected ("NPIV")-disks. When you move a LPAR via LPM the vscsi-disks are moved to the VIOS on the target managed system in the process.


Quote:
Originally Posted by c3rb3rus
The AIX oslevel is 7100-03, going to check for any updates.
That is OK. In fact some applications will prescribe exact versions anyway, so, as long as your version is supported (which is the case with 7.1), you are on the safe side.

Quote:
Originally Posted by c3rb3rus
What about firmware/microcode? How does one go about updating that for the head unit?
The POWER8 is a new hardware so expect the microcode to change quite oftenly in the next future. In general you only update when you must, not, when you can. It is good practice to install the very latest revision before the system goes productive because this way you might avoid the one or other downtime. Save for that: wait until you have a support case and support advises you to update microcode or a software update makes it necessary. Only then install the - at that time - latest microcode. As long as you haven't got a problem related to it: leave it alone.

Do you have a NIM server? If so make sure this is at the absolutely latest AIX version there is, because it can only serve systems at the same or lower versions than it is itself.

I hope this helps.

bakunin
 

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IPRUPDATE(8)						      System Manager's Manual						      IPRUPDATE(8)

NAME
iprupdate - IBM Power RAID adapter/device microcode update utility SYNOPSIS
iprupdate iprupdate --debug --check_only --daemon --use-polling --use-uevents DESCRIPTION
iprupdate is used to update the microcode on IBM storage adapters and the disk units attached to them to a minimum supported level. It can be run at any time while the ipr device driver is loaded. The utility will check the microcode revision level of each storage adapter/disk unit on the system and compare it to the microcode revision level that is installed in /etc/microcode, /usr/lib/microcode, and /lib/firmware. If the microcode level on the adapter/device is below the minimum supported level and the level of the latest image is newer, the microcode will be updated to the latest level available. It is desired that this be called in the boot process. OPTIONS
--version Print the version number of iprupdate --debug Enable additional error logging. Enabling this will result in additional errors logging to /var/log/messages. --check_only Check if any adapters or disk units are below their minimum supported level. --daemon Run as a daemon to handle adapters and devices being hotplugged. --use-polling Do not use netlink/uevent notification, but rather poll for adapter and device configuration changes. --use-uevents Use netlink/uevent notification rather than polling for adapter and device configuration changes. If not specified, polling will be used until the first uevent notification appears, then netlink will be used. AUTHOR
Brian King (brking@us.ibm.com) February 2005 IPRUPDATE(8)
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