A long time ago in a datacenter far, far away….
Turmoil has engulfed the IT landscape. Within the newly formed digital universe,
corporate empires are becoming more and more
dependent on their digital data and computer systems.
To avoid downtime when getting hit by an evil strike, the corporations are
starting to build disaster recovery capabilities in their operational architectures.
When a GPFS client machine rebooted, the GPFS File System was unmounted with no error sign. When NSD issues the command “mmstartup -N client_node“, similarly, there is no error sign.
But if you do a
# mmdsh -v -N all "/usr/lpp/mmfs/bin/mmfsadm dump waiters" > all.waiters
You may see something like
At Schuberg Philis, we manage quite a farm of XenServer clusters. As the number of clusters we operate goes up, so goes the time it takes to manage them all. And, let’s be honest: patching and upgrading isn’t the most exciting work. We needed more automation and I took the challenge ;-) The challenge Patching itself is […]
Hadoop is an open source programing framework developed by ap