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AIX JFS file systems and 4k disks
cggibbo
Tags:
not
you
size
sector
if
rootvg
4
try
power
systems
note:
warning
disk
gibson
jfs
kb.
on
file
please
to
power9
blog
of
have
supported
mksysb
restore
chris
system
in
that
with
#aix
so
a
4k
has
disks
are
7,872 Views
WARNING, PLEASE NOTE: AIX JFS file systems are not supported on disks that have a sector size of 4 KB. So, if you try to restore a mksysb, that has JFS file systems in rootvg, to a system with 4K disks, it will fail. You will see the following message during...
from Blog: Chris's AIX Blog
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An (almost) Infallible Sign that Your OS is Going to Self-Destruct
AnthonyEnglish
Tags:
disaster
backup
system
backups
dr
restore
recovery
rebuild
aix
mksysb
anthony_english
os
1 Comment
12,854 Views
Alright. I admit it. I've been studying up how to improve my blog post titles. So let me give some disclaimers: (a) your OS is probably not about to self-destruct (but would you be ready for it if it did?) (b) this is only to do with AIX (c) you probably...
from Blog: AIX Down Under
Modified on by AnthonyEnglish
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Help! My mksysb is only backing up 4 files!
I enjoy it when I open my email in the morning and find a new message with a subject line of “ weird one… .”! I immediately prepare myself for whatever challenge awaits. Fortunately I do delight in helping others with their AIX challenges so...
from Blog: Chris's AIX Blog
Modified on by cggibbo
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Excluding files from mksysb Community Blog
In some situations we have inside of rootvg some files that need to be excluded during a mksysb backup. Those files you can include inside of /etc/exclude.rootvg. Follow an example: root@hostname:/root# cat /etc/exclude.rootvg ^./mounts/reports ^./mounts/home...
from Blog: Black window
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Prevent and Detect Orphaned Mksysb NIM resources
In order to have a working mksysb resource in a NIM environment you need to have 2 items: a NIM mksysb resource which points to a mksysb file in the filesystem. A good NIM mksysb resource looks like the image below. The NIM mksysb...
Modified on by brian_s
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Testing the integrity of a mksysb image
Hello everyone, This is my first post here on developerWorks Community and I'm expect that I can help you with my tips =). I'm starting with a little tip about testing the integrity of a mksysb image file. So, why this is necessary? I've faced a problem on...
from Blog: Rafael Torato's Blog
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Quickly estimating mksysb size on AIX
I'm not a fan of large mksysb's. They cause slow backups, slow restores, and if you ever need to make a NIM SPOT from a mksysb I've found that it takes exponentially longer for larger size mksysbs. And a lot of times mksysbs are unnecessarily large just due...
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Can you recover rootvg without media or NIM?
A colleague in another country had an AIX logical partition that went down and couldn't boot. He asked how he could boot it without media. It was a development logical partition. I knew nothing at all of the environment, and had no possibility of access to...
from Blog: AIX Down Under
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When would you backup an AIX system to a CIFS share?
We have a number of clients who have a single AIX server in their environment. There is no NIM server, and no other AIX system to send mksysb backups to. One way of backing up the system is to use a backup to a local tape drive, or a DVD drive. This is fine...
from Blog: Advent One Infrastructure Blog
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Timeouts when using viosvrcmd on the HMC to launch ios backups
This week I found that after updating our HMC and VIOS our VIO mksysb (backupios) backups started failing. Our HMC is on 7.7.3 HMC code. Our VIOS is on 2.2.1.4 code. The mksysb backups are scripted from our NIM server, where we do the following to perform the...
from Blog: Advent One Infrastructure Blog
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mksysb issues after re-mirroring the rootvg
As part of an LVM migration to new storage, we found that our mksysb's started failing. This was also our NIM master which held mksysb images for all the LPARs in our environment so this needed to be fixed quickly. We used unmirrorvg and mirrorvg to migate to...
from Blog: Advent One Infrastructure Blog
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NIM mksysb restore hang on 0611
This is mentioned in the NIM on AIX redbook.. http://www.redbooks.ibm.com/abstracts/sg247296.html If
you have NFS reserved ports enabled in AIX, then you need to make sure
these are set on the NIM master AND in your NIM client definition. If
you...
from Blog: Advent One Infrastructure Blog
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Why is my VIO mksysb so huge!?
One thing that is great is having a VIO media repository. You can
store AIX base media, mksysb images or any other .iso image in your VIO
repository. There is a good post on how to do it here: https://www.ibm.com/developerworks/mydeveloperworks/blogs/AIX...
from Blog: Advent One Infrastructure Blog
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Clean up data filesystems after mksysb restore
A mksysb backup of the root volume group (rootvg) includes the file /etc/filesystems . This configuration file includes file systems from other volume groups (like datavg) and maybe NFS mounts. When you restore from the mksysb , those other file system...
from Blog: AIX Down Under
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OVF to OVA conversion
Now that you have your VMControl working and have used it you capture a virtual appliance you might want to move it to other environments, such as importing it into IWD to deploy on any number of environments. The best thing to do is convert it to a ova,...
from Blog: POWER me up
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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:...
from Blog: Chris's AIX Blog
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Keep hd6 default paging space
There's nothing like running out of paging space to bring an AIX system to its knees, but I hit an unexpected paging space limitation today when I was trying to restore from a mksysb backup. I didn't run out of paging space - I didn't get the chance! When I...
from Blog: AIX Down Under
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AIX multibos mksysb migration
I’ve
written about multibos before, here and here . But recently I
started experimenting with multibos mksysb migration. A customer asked me how
this worked and apart from a high-level view I wasn’t able to provide any real
world experience, so I thought...
from Blog: Chris's AIX Blog
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Ready for AIX recovery with mksysb and mkdvd
AnthonyEnglish
Tags:
iso
media
library
rootvg
repository
dvd
virtual
mksysb
mkdvd
vmlibrary
virtual_optical_device
aix
nim
restore
backup
2 Comments
31,129 Views
mksysb - an oldie but a goodie Long before the days of HMCs, VIO servers and LPARs, AIX version 3 and 4 ran on standalone systems. A system had its own tape drive. This would be useful for mksysb backups, which backed up the rootvg. Reliability, Availability,...
from Blog: AIX Down Under
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The AIX (junior) detective: when was the last mksysb?
AnthonyEnglish
Tags:
mkszfile
aix
backup
mksysb
image.data
mkcd
os
logical_volume
/etc/exclude.rootvg
mirror
mkdvd
3 Comments
18,106 Views
Backing up your system ... sort of If you've worked more than 5 minutes on AIX system administration, you would have heard of the famous "mksysb". This refers to the backup named from the mksysb command, which m a k es a sys tem b ackup. Actually,...
from Blog: AIX Down Under
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Installation without DVD, NIM or VIO
AnthonyEnglish
Tags:
optical_device
devices
vio
aix_6.1
vmlibrary
bosinst.data
clone
nim
dvd
mkcd
mkdvd
all_device_kernels
dr
mksysb
virtual_media_repository
production
rootvg
filesets
aix
virtual_media_library
mkisofs
cd-rom
lpar
23,276 Views
MAKING THE BEST OF WHAT YOU'VE GOT A customer wants to clone his production LPAR running AIX 6.1 - it's on a Power6 server - to an LPAR on his DR site which runs an older p5 server. Both sites have HMCs. As the environment is very small, all I/O is handled...
from Blog: AIX Down Under
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Create DVD images with mkdvd
AnthonyEnglish
Tags:
image
mkcd
mksysb
iso
vmlibrary
mkdvd
loadopt
vios
read_only
vio
aix
dvd
virtual_media
chvopy
39,705 Views
Not a spitting image If you want to create a DVD image on AIX, you can do it right from the command line, without even touching physical media, using the mkdvd command. It was a wonder back in ... well, a long time ago ... when these new-fangled CDs came out...
from Blog: AIX Down Under
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The AIX LVM - a perfect gentleman
AnthonyEnglish
Tags:
chfs
rootvg
mksysb
exportvg
mount_point
file_system
tsm
manners
volume_group
chlv
aix
importvg
gentleman
lv
exclude.rootvg
logical_volume
24,460 Views
Diamond in the SAN I recently
cloned an LPAR from a P6 to a less-busy P5 server via a mksysb
backup . Unfortunately, after starting up the new LPAR I found that there was an essential directory missing because it had been excluded via the...
from Blog: AIX Down Under
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Managing WPARs on AIX 7 Open Beta
"AIX7 OB boarding now" Are you someone who is always behind the times? Do you buy the last ticket on the last train into the evacuated
city? Well, take off your N minus ten leadweight and join the discerning passengers of AIX Down Under on our...
from Blog: AIX Down Under
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' rm -r ' and your career
AnthonyEnglish
Tags:
mksysb
original_state
volume_groups
delete
recover
os
rootvg
mkcd
varyonvg
disaster
camel_trainer
soppy_greeting_card
crontab
rm
mkdvd
dvd
install
1 Comment
18,874 Views
"Clean up the system" You have suddenly been appointed as AIX
administrator after the previous admin disappeared in mysterious circumstances. You've logged onto the AIX system once before. You've been told to do a final tidy-up of the new 24X7...
from Blog: AIX Down Under
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