There is a helpful command to check the OS Release on the Alternative Disk in AIX without booting from it or wakeup
/usr/lpp/bosinst/blvset -d /dev/hdisk0 -g level
There is a helpful command to check the OS Release on the Alternative Disk in AIX without booting from it or wakeup
/usr/lpp/bosinst/blvset -d /dev/hdisk0 -g level
Hello ALL,,
Below is script Tested on AIX Environments to List ALL ASM Disks ( Oracle ASM ) with SN , Header of DIsk , Major and Minor ,,
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This small article describes how to change the ct_node_id in case two LPARs have the same.
When you clone an LPAR by splitting up a copy of the rootvg of an existing LPAR on storage level, both the original and the cloned rootvg have the same /etc/ct_node_id. This confuses the HMC and communication between LPAR and HMC will only partly work. DLPAR for instance doesn’t work if two LPARs have the same node ID in /etc/ct_node_id.
Sometimes AIX Admin need to be sure that the System is connected to different SAN Switch for more redundancy and stability.
Follow below steps to check SAN Switches from AIX Side:
# lsdev |grep fc fcs0 Available 24-T1 Virtual Fibre Channel Client Adapter fcs1 Available 24-T1 Virtual Fibre Channel Client Adapter # lsattr -El fscsi0 |grep -i scsi_id scsi_id 0xdf0707 Adapter SCSI ID False # lsattr -El fscsi1 |grep -i scsi_id scsi_id 0xde0718 Adapter SCSI ID False
You can use the following command to change Specific string on all files under specific directory:
find /u01/directory -type f | xargs perl -pi~ -e ‘s/oldtext/newtext/g;’
Tested on Linux & AIX
Ref:
https://blogs.oracle.com/rammenon/recursively-replacing-a-string-in-all-files-in-a-directory-linux
Hello Everybody …
Sometimes for performance recommendations or redundancy solutions, you will need to change some parameters on fibre card, like fc_err_recov & dyntrk
TEST_SERVER#lsattr -El fscsi0 attach none How this adapter is CONNECTED False dyntrk yes Dynamic Tracking of FC Devices True+ fc_err_recov delayed FC Fabric Event Error RECOVERY Policy True+ scsi_id Adapter SCSI ID False sw_fc_class 3 FC Class for Fabric True Continue Reading...
Hello Everybody,
The following lines are a for loop script to display disks info @ AIX System (Disk Name, Disk Unique ID, Disk Size in MB) and of course you can customize the data by add more columns:
Sometimes when you try to mount file system (NFS) you will get the following Error:
#mount -o rw server1:/dir /bk mount: 1831-008 giving up on: server1:/dir vmount: Operation not permitted.
Configure DNS on AIX
Add the DNS server(s) to the /etc/resolv.conf configuration file:
vi /etc/resolv.conf
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