Moving from Github to self-hosted git
I have taken the step to move all my repositories from Github to my own self-hosted git service at git.kudos.be. The move is a logical consequence of the ev...
Posts by Year
2024
2020
HP-UX LVM scripts (update)
Over the last couple of years I have made some small and not so small improvements to the LVM scripts for HP-UX. Most notably additional options/toggles were...
Oracle: unable to mount filesystems
The mount command fails for filesystems with option convosync=direct:
Tracing automounter
Levels Two levels of automounter tracing are available:
2019
Running Zim in WSL
Steps to run Zim on Windows Subsystem for Linux:
Serviceguard - problem with HA-NFS shares
Problem At cluster package stop, a file system is not unmounting correctly because the underlying NFS share is not being unshared first correcty:
How to fix permissions on a live mountpoint
The usual way to update the ownerships and/or permissions of an actual mountpoint directory is to unmount the filesystem, then update its attributes and then...
2018
ZFS appliance scripts
Oracle ZFS appliances provide a javascript-like scripting language that can be used to query the appliance. Here are 2 scripts that have come in very handy ...
OA (Operations Agent) debugging
Some useful debugging tips for the Operations Agent.
2017
cpsh commands
About cpsh allows the real-time display of Glance metrics from any system where the perfd daemon is running. If no options (with exceptions mentioned below)...
LUN ID 0 issue
Background HP-UX requires at least one LUN device to be present with LUN or SCSI ID 0 in order to scan the corresponding SCSI bus. This LUN ID 0 device will...
OA (Operations Agent) troubleshooting
About For many years I have dealing with the HP OpenView OA (Operations Agent) either its in full incarnation of the software stack or just when using the O...
What is a LUNZ device?
About LUNZ is defined as : The logical unit number that an application client uses to communicate with, configure and determine information about an SCSI s...
2016
HP-UX LVM scripts in Linux style
I wrote a couple of Perl scripts that make querying basic LVM information on HP-UX hosts a bit easier and show info alike the much loved Linux tools pvs/vgs/...
List IBM tapes (atdd)
A quick-and-dirty script to list the details of IBM atdd tape devices:
How to send SNMP traps (OVPA)
Since the HP OV Performance Agent is installed on most HP-UX systems, the trapsend command can be used to send SNMP test traps.
Set up BIND on HP-UX
About This is a short guide in getting a DNS server up and running on a HP-UX system. The obvious choice for DNS server software is BIND as pre-compiled bun...
2015
Unable to open pty: no such file or directory
It appears that OpenVZ and CentOS can have some issues regarding udev. After installing the Development tools yum package I found myself unable to do anythin...
Comprehensive AIX system backup script (mksysb, iosbackup)
About I have written this system backup script because none of the freely available scripts fitted my exact needs. The run_aix_system_backup.sh script provi...
Migrating from Bacula to Burp
I migrated from the Bacula backup/restore tool (v5) to the Burp software. In this short article I will talk a bit about the rationale behind that decision ...
OpenVZ failing to assign IP address
I was presented with quite an unpleasant surprise today when I rebooted a few OpenVZ containers running CentOS 7 with the latest patches applied. Though ea...
Clean up failed LUN paths on HP-UX
About The handle_failed_lunpaths.sh is a small script to show and/or remove failed LUN paths on HP-UX using the scsimgr tool. Code Download the script fro...
Untrusted X11 forwarding on HP-UX is broken
Problem X forwarding does not seem to be working correctly when trying to establish a connection between two HP-UX (11.31) hosts
SSH X11 forwarding not working
Problem X11 forwarding via SSH is not working and gives following error in SYSLOG:
2014
Have a Merry and Snowy Christmas in your Linux terminal!
disclaimer: this script was not written by me and unfortunately I cannot find the original location on the Internet anymore. I just wanted to post...
ORA-17612 - Failed to discover Oracle Disk Manager library
Problem On a HP-UX host with VXVM/CFS in use, we got following error when starting an Oracle RAC instance:
OpenVZ breaks networking
I planned a reboot of my server(s) over the weekend to fix a hanging ILO problem. Since the remote console was out of order, I had to go the datacenter offer...
Why I use ZIM Wiki
My main use for Zim Wiki is that of a documentation tool covering the tasks and projects I am doing as a freelancer system administrator/engineer. And at th...
Check VxVM dmp paths
A quick snippet to count the multi-paths for each disk:
How to make ksh behave like Bash
Following snippet is not by my hand but I am posting it anyway as I am unable to find the original reference to it.
2013
How to enable agile naming mode in VxVM
By default Veritas Volume Manager uses HP-UX legacy naming scheme instead of the agile view. Below is a procedure to change this behaviour.
HP Proliant HW monitor
About The hppro_hwmon Perl script will query the HP Linux hpasmcli and hpacucli command-line tools to check or show the health of your Proliant hardware. It...
Serviceguard ECMT Oracle mount helper
About The control_pkg_db.sh script provides a quick way to manually (de)-activate the disk resources (VxVM) of a cluster package created with the Servicegua...
2012
Shutting down Oracle databases quickly in parallel
About Many folks running a large(r) amount of Oracle (single) instances on the one and same server use a sequential method for shutting down their databases...
Using trickle and Bacula in a multi-homed environment
About Here is a brief tutorial on how I have set up the powerful Bacula backup tool on a server supporting a split-backup environment:
Validating mount options for Oracle filesystems (SAP)
About The check_ora_sap_mounts.pl script is a fairly quick-and-dirty script to validate the mount options on remote Oracle filesystems in a typical SAP set-...