How To Install ibacm on CentOS 7
Introduction
In this tutorial we learn how to install ibacm on CentOS 7.
What is ibacm
The ibacm daemon helps reduce the load of managing path record lookups on large InfiniBand fabrics by providing a user space implementation of what is functionally similar to an ARP cache. The use of ibacm, when properly configured, can reduce the SA packet load of a large IB cluster from O(n^2) to O(n). The ibacm daemon is started and normally runs in the background, user applications need not know about this daemon as long as their app uses librdmacm to handle connection bring up/tear down. The librdmacm library knows how to talk directly to the ibacm daemon to retrieve data.
We can use yum or dnf to install ibacm on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install ibacm.
Install ibacm on CentOS 7 Using yum
Update yum database with yum using the following command.
sudo yum makecache
After updating yum database, We can install ibacm using yum by running the following command:
sudo yum -y install ibacm
Install ibacm on CentOS 7 Using dnf
If you don’t have dnf installed you can install DNF on CentOS 7 first.
Update yum database with dnf using the following command.
sudo dnf makecache
After updating yum database, We can install ibacm using dnf by running the following command:
sudo dnf -y install ibacm
How To Uninstall ibacm on CentOS 7
To uninstall only the ibacm package we can use the following command:
sudo dnf remove ibacm
References
Summary
In this tutorial we learn how to install ibacm on CentOS 7 using yum and dnf.