The Yocto Project is an embedded Linux distribution builder that makes use of several other open source projects. A Linux distribution is a collection of software packages and policies, and there are hundreds of Linux distributions available. Most of these are not designed for embedded systems and they lack the flexibility needed to accomplish target […]
Memory utilization of processes in AIX
Monitoring any performance characteristics is a very important part of achieving the best results possible. There are many ways to investigate different parameters and settings, but combining several tools and commands can give you the best overall picture of performance. This post describes the following tools: The ps command The sar command The svmon command […]
Procedure to mount and unmount NFS filesystems on AIX
Clients access files on the server by first mounting a server’s exported directories. When a client mounts a directory, it does not make a copy of that directory. Rather, the mounting process uses a series of remote procedure calls to enable a client to access the directories on the server transparently. There are three types […]
Using savevg on AIX to save time creating filesystems, LV’s and volume groups
On AIX, the savevg command can be used to back up non-root volume groups and their contents. The volume group structure can be recreated from the savevg archive. Other data backups might be need to be applied to bring the data up to date. Should an entire disk group be lost, this would need to […]
What is VIOS?
The VIOS is a specialized operating system that runs under a special type of logical partition (LPAR). It provides robust virtual storage and virtual network solution; when two or more Virtual I/O Servers are placed on the system, it also provides high availability capabilities between them. A virtual i/o server is an appliance that provides […]
Run VIO commands from the HMC using “viosvrcmd” without VIOs Passwords
IBM Systems Director can not only gather standard inventory information from the operating system running inside the VIOS but also virtualized resources. This information comes from the communication with the Hardware Management Console and the viosvrcmd command. The virtual resources and the client LPARs are stored in the Systems Director database. There is nothing to […]
Install AzCopy on Linux – Fastest way to copy in Azure
AzCopy is a command-line tool that is used for copying data to and from Azure Storage Blob, File, and Table services, or to and from objects within the same storage account, and even between different storage accounts. AzCopy is available in two flavors: AzCopy on Windows AzCopy on Linux There are two versions of AzCopy […]
AIX HMC CommandLine Reference (Cheat Sheet)
The Hardware Management Console (HMC) is used to control the System p servers connected to a private network. Control functions such as power on/off, dynamic logical partitioning (DLPAR), logical partitioning (LPAR), and capacity upgrade on demand (CUoD) are handled by the HMC. In the InfiniBand environment, the HMC has an important function: it runs the […]
Using iptrace command in AIX
iptrace is a utility for recording Internet packets received from configured interfaces. You can provide a filter to capture only important network data. You can only trace data between local and remote host (not between two remote hosts). The iptrace utility runs as a daemon, and you must stop it with the kill command. The […]
vgextend Command Examples in Linux
Logical Volume Manager 2 (LVM2) allows you to aggregate physical storage devices into volume groups. You can then divide that aggregated space into one or more logical volumes. Once created, logical volumes can be extended to utilize unused space within the volume group, allowing the file system residing on the logical volume to be extended […]