Defining a new Network Install Interface on a NIM master.
OK, so I had
a NIM master with two network interfaces, en0 and en1. The en0 interface was connected
to the 192.168.10.0 network and the en1 interface was connected to the 10.1.1.0 network. When the
master was initially configured, we chose en0 as the primary install interface.
The master could now install NIM clients on the 192.168.10.0 network, without
any additional NIM network configuration. root@nim1 /
# ifconfig –a en0:... [More]
Tags:  new gibson network install nim installation chris interface manager aix |
A letter from Pavel Hampl - LPAR2RRD creator.
Interested in paid support for LPAR2RRD tool? Let’s all support Pavel and spread the word! From: Pavel
Hampl < pavel.hampl@cz.ibm.com > Date: 21 July 2011 3:00:19 AM AEST To: undisclosed-recipients:; Subject: LPAR2RRD professional support announcement Hi Everyone, You are receiving that mail because we have been either in touch in regards of LPA2RRD tool about year ago or you are on LPAR2RRD mailing list. I’ve decided to make professional paid support of LPAR2RRD. Here are my reasons which led me to that thought: - I have not... [More]
Tags:  lpar2rrd chris aix gibson |
Convert rootvg JFS file systems to JFS2 with alt_disk_copy
Starting with AIX 6.1 (TL4?), you can use the alt_disk_copy command to convert rootvg
file systems from jfs to jfs2. The man page for the alt_disk_copy command
states the following: -T
Indicates that you want to convert JFS file systems to JFS2 file systems during
the process of recreating the rootvg volume group on target disks. As an example, to clone a running systems rootvg to hdisk2, and convert
the rootvg file systems from JFS to JFS2, you would run the following command: #
alt_disk_copy -T -d hdisk2 Good to know!
Tags:  alt_disk_copy chris convert jfs2 aix gibson jfs |
HSCLA27C, reserve_policy and LPM validation error.
A customer was attempting to move an LPAR from one POWER7 750
to another POWER7 750 using Live Partition Mobility (LPM). But he was receiving
the following error message when performing an LPM validation. This was an
easy one to fix. The reserve policy on the hdisk on the VIOS (yes, it was a
single VIO server not dual VIOS, don’t ask why!) was set to PR_exclusive instead of no_reserve. $ lsmap
–vadapter vhost0 SVSA Physloc Client
Partition ID... [More]
Tags:  aix live mobility lpm partition gibson reserve_policy hscla27c chris |
Creating a CAA cluster on AIX 7.1.
In this post I’ll demonstrate how to
create a Cluster Aware AIX (CAA) cluster on AIX 7.1. I’ll create a simple
two-node CAA cluster. I’ll then check the cluster status and, finally, remove
the cluster. Before I start, I make sure that both
nodes have entries in /etc/hosts on both systems. node1[/] > grep node /etc/hosts 172.29.134.169
node1 172.29.152.160
node2 node2[/] > grep node /etc/hosts 172.29.134.169
node1 172.29.152.160
node2 I verify that cluster services are not
active on both nodes. node1[/tmp/cg]... [More]
Tags:  creating mkcluster lscluster caavg_private caa 7.1 cluster chris gibson aware creation aix |
JFS2 logging disabled during mksysb restore.
While attending the IBM Power Systems
Symposium this week, I learnt that starting with AIX 7.1 (and AIX 6.1 TL6) JFS2
logging is disabled during a mksysb restore. You may be familiar with disabling
JFS2 logs, if not, take a look at this IBM technical note: https://www-304.ibm.com/support/docview.wss?uid=isg3T1012643 I’ve been unable to find any official
documentation from IBM that mentions this new enhancement to the mksysb restore
process. However, when I checked my own AIX 7.1 system I found the following
statement/code in the... [More]
Tags:  mksysb disabled log=null logging jfs2 chris aix gibson |
Querying the Cluster Aware AIX solidDB database.
Did you
know that you can connect to and query the new solidDB database used by Cluster
Aware AIX (CAA)? You can
connect to the solidDB instance and issue SQL queries against the database. In
the following example, I issued two queries: one to list the tables in the
database and another to query information relating to the nodes in the cluster.
The formatting in the second query is a mess, but you get the idea. root@node1:/>
/opt/cluster/solidDB/bin/solsql
-x pwdfile:/etc/cluster/dbpass 'tcp localhost 2188' caa IBM
solidDB SQL... [More]
Tags:  soliddb solsql aware gibson caa chris /opt/cluster/soliddb/bin/... cluster aix |
How much memory or CPU will that CoD code activate anyway?
This little tip was passed on to me by
a friendly IBM hardware engineer many years ago. When entering a capacity on demand
(CoD) code into a Power system, you can tell how many processors and how much
memory will be activated, just by looking at the code you’ve given by IBM. For example, the following codes, when
entered for the appropriate Power system, will enable 4 processors (POD) and
64GB of memory (MOD). I can also tell* that once the VET code is entered, this
system will be licensed for PowerVM Enterprise Edition (2C28). ... [More]
Tags:  cod power gibson mod aix activation demand pod capacity chris code on vet powervm |
lsdevinfo
The lsdevinfo utility
appears to an undocumented command. However it looks like it could come in
handy occasionally. Here are some examples of using it on AIX 7.1: # oslevel
-s 7100-00-01-1037 #
lslpp -w /usr/sbin/lsdevinfo File
Fileset Type
---------------------------------------------------------------------------- /usr/sbin/lsdevinfo bos.rte.methods File #
lsdevinfo -h Usage: lsdevinfo
[-q Criteria] [-F Format] [-R] [-c] [-h] ... [More]
Tags:  chris aix gibson lsdevinfo |
Configuring AIX as an iSCSI target.
Configuring
AIX as an iSCSI target. On
the iSCSI target host (server). Host
is running AIX 7.1. Install
the devices.tmiscsw.rte fileset. This fileset can be found on the AIX 7.1
Expansion Pack CD. l273pp043_pub[/]
> oslevel -s 7100-00-02-1041 l273pp043_pub[/]
> lslpp -l devices.tmiscsw.rte
Fileset
Level State Description
---------------------------------------------------------------------------- Path:
/usr/lib/objrepos
devices.tmiscsw.rte 7.1.0.0
COMMITTED iSCSI Target... [More]
Tags:  iscsi target chris aix gibson |
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 |
VSCSI hdisk path priority - which path am I using?
Here’s a question I received recently, that relates to virtual
SCSI hdisk path priority. Hi, Chris, I use MPIO for our virtualization environment. I'd like to check which path is currently used. How can I get the result? For example: [nim:/]# lspath Enabled hdisk0 vscsi0 Enabled hdisk0 vscsi1 Enabled hdisk2 vscsi2 Enabled hdisk1 vscsi1 Enabled hdisk1 vscsi0 Enabled hdisk3 vscsi2 Enabled hdisk2 vscsi3 Enabled hdisk3 vscsi3 How can I determine vscsi0 or vscsi1 is currently carrying data
through VIOS and VIOC. Thanks a lot! By default... [More]
Tags:  priority aix hdisk gibson vios vscsi chris |
IVM and VLAN Tagging
I was working
with a customer recently on a Power Blade that was running the Integrated
Virtualisation Manager (IVM). They’d installed a VIO partition onto the Blade
and had hoped to install a couple of AIX LPARs on the system. However they didn’t
get very far. As soon as they
attempted to NIM install the LPARs, they would get stuck at trying to ping the
NIM master from the client. Basically, the Shared Ethernet Adapter (SEA) was
not working properly and none of the LPARs could communicate with the external
network. So they asked for... [More]
Tags:  ivm chhwres vlan lshwres tag aix vios sea |
Working with AIX scalable volume groups.
Scalable volume groups first appeared in AIX 5.3. They allow
a maximum of 1024 physical volumes and 4096 logical volumes per volume group.
This is pretty cool for large systems. In the ‘old days’ we could end up in
situations where we’d reached the maximum PV count (32 or 128) for a VG and
have to create a new VG to work around the issue. I use scalable VGs for all my new large AIX system builds. The following command will create a scalable VG (named svg ) on hdisk4. You’ll notice that MAX
PVs is set to 1024 and MAX LVs is set to 256.... [More]
Tags:  gibson aix vg manager lvm pv chris chvg hdisk max physical lv scalable groups group mkvg logical volume |
Working with AIX scalable volume groups - Part 2 - converting to scalable.
Following on
from my previous post, on working with scalable VGs. https://www.ibm.com/developerworks/mydeveloperworks/blogs/cgaix/entry/working_with_aix_scalable_volume_groups1?lang=en You may find
yourself in a situation where you’d like to convert a VG to scalable. For example,
you might start off with a normal VG i.e. one that can support a maximum of 256
LVs and 32 PVs. # mkvg -s
512M -y myvg hdisk5 myvg # lsvg myvg VOLUME
GROUP: myvg VG IDENTIFIER: 00f6027300004c0000000133aa24d1f6 VG
STATE:... [More]
Tags:  aix lvm chvg pv gibson convert -g mkvg manager hdisk scalable chris conversion group groups volume max vg physical lv logical |