Category Archives: DataCenter

RedHat/Fedora Linux NIC bonding

By | February 9, 2017

Red Hat Enterprise Linux allows administrators to bind multiple network interfaces together into a single channel using the bonding kernel module and a special network interface called a channel bonding interface. Channel bonding enables two or more network interfaces to act as one, simultaneously increasing the bandwidth and providing redundancy. The behaviour of the bonded… Read More: RedHat/Fedora Linux NIC bonding »

HP Microserver Gen8 compatibility list

By | January 28, 2021

As a big fan of the HP Microserver Gen8 (I own 3 of them in two locations) I compiled my own list of compatible hardware that I am using or used in building the servers.I have to thank the good fan forums that I always consult previous of buying new hardware for my HP Microservers… Read More: HP Microserver Gen8 compatibility list »

#DRBD based disk replication of a production cluster to a remote site cluster on RHEL 6

By | May 26, 2017

1 General Considerations Our example enterprise applications run on a Linux Cluster with a shared cluster storage resource. Having this HA setup ensures that we have a high rate of service availability on the production site. To ensure that the disruption time in service of our enterprise application is minimal as possible the best solution… Read More: #DRBD based disk replication of a production cluster to a… »

iSCSI SAN resources configuration as shared disks in a cluster environment, replicated also with DRBD

By | April 24, 2017

The following configuration was created to use the iSCSI exported resources from a NetApp storage device as shared disk resources in a Linux cluster environment. The same resources are also replicated to a remote cluster using DRBD disk replication. The production environment contains four exported SAN resources which will be used as shared resources in… Read More: iSCSI SAN resources configuration as shared disks in a cluster… »

Fedora Linux: LVM Single Drive to LVM RAID 1 Mirror Migration

By | March 3, 2017

All started when I wanted to have a true HA configuration for the server nodes. That implies that not only the storage of each server is a RAID10 setup, but also the boot and root resources are in a RAID1 configuration. I started to use an old and known tutorial to convert from standard installation… Read More: Fedora Linux: LVM Single Drive to LVM RAID 1 Mirror… »

LTFS on Fedora Linux

By | January 16, 2023

The following are the steps to set up LTFS with a HP Ultrium 3000 and Fedora. STEP 1: Download from HP site and install HP Library & Tape Tools (hp_ltt418_linux_x86_64.tar). STEP 2: Download the HP Store Open Standalone binaries for RHEL x64 from the HP website. (HP_StoreOpen_Standalone_2.3.0_for_RHELx64_Z7550-01726.tar.gz) STEP 3: Install the rpm on Fedora Linux.… Read More: LTFS on Fedora Linux »

Full Linux system backup with #Bareos on #Fedora Linux

By | March 13, 2017

As the home environment becomes more complicated the need for an integrated whole solution for the entire environment was necessary. I already have an automatic backup setup using Barracuda Yosemite Server Backup, but this is only for one server (nas1) where OwnCloud is residing. The daily backup job in fact does a backup only for… Read More: Full Linux system backup with #Bareos on #Fedora Linux »