More NIM troubleshooting....some basics...
It’s no secret that I like
NIM. I’ve written about NIM on several occasions, in Redbooks, technical
articles and on my blog. It’s a great tool for installing and maintaining AIX. Occasionally
though, it can throw you an unusual error or two when things go wrong. For the uninitiated
resolving these errors can be challenging. Here’s a couple of NIM
related questions I received recently. Both are troubleshooting queries. “I'm getting the following error when trying
to create a NIM lpp_source for AIX 6.1” : ... [More]
Tags:  resource to filesystem m_mk_lpp_source: oslevel space failed all check a "master" 0042-185 on nim already copy due not exists aix c_ch_nfsexp: instfix rest or permissions link filesets 0042-081 nfs found. for /etc/.tmp.nim.exports export were and |
Multibos saved my bacon!
A colleague of mine was planning to modify the max_xfer_size attribute on a couple of
FC adapters in one of his AIX LPARs. As he was describing his plan to me, I
asked him how he intended to back out of the change should the LPAR fail to
boot after the modifications. “ But, what could
possibly go wrong?” he fired back. I advised him to use multibos to create a standby (backup)
instance of the AIX OS, just in case. He begrudgingly did so, just to keep me
happy. The next day he told me the following
tale. He had modified the FC... [More]
Tags:  bacon max_xfer_size multibos chris_gibson aix |
My first POWER7 LPAR.
Thanks to the IBM
Virtual Loaner Program, I was able to try out my first POWER7 LPAR today.
Some interesting items for me to research. # lparstat -i Node Name
:
node1 Partition Name
: node1 Partition Number
: 5 Type
: Shared-SMT-4 Mode
: Uncapped Entitled Capacity
: 0.50 Partition Group-ID
: 32773 Shared Pool ID ... [More]
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My LPAR always boots into SMS. Why?
If you turn on Multiboot from within the SMS menu (as
shown below), your LPAR will always boot into SMS, regardless of your AIX boot list
and/or LPAR profile settings. PowerPC Firmware Version EM310_048 SMS 1.6 (c) Copyright IBM Corp. 2000,2005 All rights reserved. ------------------------------------------------------------------------------- Multiboot 1. Select Install/Boot Device 2. Configure Boot Device Order 3. Multiboot Startup <ON> ------------------------------------------------------------------------------- Navigation keys:... [More]
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My root volume group is called old_rootvg....HELP!!
So, your root volume group is
called old_rootvg not rootvg? Wait……what!? aixlpar1 : #
lspv hdisk0 00c342c68dfcbdfb old_rootvg active
< This is BAD! hdisk1 00c342c6161c6b47 appvg active How did you end up in this
situation? Did you reinstall AIX with some strange incantation or did some
alternate disk activity go horribly wrong? Not sure? Me neither! Fortunately the following
tech-note and associated script can help. ... [More]
Tags:  aix importvg old_rootvg chris_gibson rootvg synclvodm odmdelete |
Never say never....AIX 5.3 on POWER8.
I NEVER thought this would happen! But, “NEVER SAY NEVER!”. IBM just announced that AIX 5.3 can now run on POWER8. http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?subtype=ca&infotype=an&appname=iSource&supplier=872&letternum=ENUSAP16-0152 As you’d expect, there are some caveats! A special PTF (U86665.bff) provides POWER8 support on AIX 5.3 with the following limitations: The LPAR must be at AIX 5.3 TL12 SP9 (latest 5.3 release). The POWER8 LPAR will run in POWER6... [More]
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New AIX Service and Release Strategy - Starting February 2011
IBM
recently announced some significant changes to their ‘AIX Release and Service
Delivery’ strategy. Starting February 2011, the following changes will apply
for both AIX 6 and AIX 7. •
Three years of support for each Technology Level
(TL). •
A single Technology Level per AIX version, per year. •
Service Packs will be released approximately 4 times
per year per Technology Level. Some of the benefits of the new strategy are: Longer
support for Technology Levels. – More... [More]
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New FC adapter port queue depth tuning
# fcstat –D fcs0 FIBRE CHANNEL STATISTICS REPORT: fcs0 … FC SCSI Adapter Driver Queue Statistics Number of active commands: 0 High water mark of active commands: 17 Number of pending commands: 0 High water mark of pending commands: 1 Number of commands in the Adapter Driver Held off queue: 0 High water mark of number of commands in the Adapter Driver Held off... [More]
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New Features in AIX Version 7.
Today, IBM announced
AIX version 7. http://www-03.ibm.com/systems/power/software/aix/v71/preview.html Several new features
were mentioned in the launch, but there were two new features that I found
particularly interesting: - AIX 5.2 WPARs
for AIX 7 - Cluster
Aware AIX I thought I would
briefly describe each feature in this post. AIX 5.2 WPARs
for AIX 7 In AIX version 7,
administrators will now have the capability to create Workload Partitions
(WPARs) that can run AIX 5.2, inside an AIX 7 operating system instance. This
will... [More]
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New HMC commands: chnportlogin and lsnportlogin - Login in Virtual Fibre Channel adapters for NPIV client LPARs.
There are two new HMC (V7.7.3.0) commands that can force a client Virtual Fibre Channel adapter to log into a SAN. This should make the life of the AIX and SAN administrator easier, as they will no longer need to install AIX in order for the new VFC adapters to log into the SAN. Although there was an unsupported method* for doing this already (see links below). Nor will the SAN admins need to “blind” zone the WWPNs. There was some indication of this in the latest VIOS FP readme: ... [More]
Tags:  virtual chnportlogin aix gibson lsnportlogin channel npiv adapter chris fibre |