With the Compuverde solution and multitenancy, 12 AD domains are present on the university as a whole. Since the same hardware is used as access points and storage for all domains, only one shared amount of overhead is necessary for each campus, and there are only one system and three storage clusters to administer.
The goal is to centralize everything and migrate over to Compuverde storage. “One huge part is all the storage. Another is VMware,” Hierling said. “We scanned the entire network for Synology Stations and found about 50 boxes. We didn’t scan for Qnap, Western Digital and all the other NAS systems, but we want them ALL on our Compuverde Cluster. That is the plan.”
The flexibility is a key strength.
“We have a broad variety of users, IoT devices, VMware, data mining and more, and we put them all on the Compuverde solution,” Hierling said. “CIFS/SMB and NFS are used for user and webserver shares. In addition, we are testing S3 and NFS for VMware. There are some expensive storage for VMware and also a bunch of large 4-8 TB virtual machines that we have moved to one of the Compuverde clusters. This storage solution has been tested now for about a year. We run one side of our new Microsoft Exchange Cluster inside VMware on top of the Compuverde NFS.”
The Compuverde scale-out vNAS storage solution is easy to run, requires very little maintenance and interaction, and includes nearly endless possibilities for future scalability. For hardware, HP servers were chosen, with SSD and spinning disks, no RAID, and with Cisco Nexus infrastructure. In this first phase, three campuses are deployed; Lemgo is equippedwith a 10-node cluster and two other campuses – Detmold and Höxter – have one five-node cluster each. That’s three storage clusters in all. Next, an additional 192 TB of storage are being added to the main cluster.
In the future, basically any standardized hardware can be added, such as disks, nodes and infrastructure, so that each piece of hardware will take its share of the total load, automatically balancing with the existing hardware and improving performance, IOPS and capacity further.
This gives a total of 840 TB of raw storage. Using 5+2 erasure coding and a storage efficiency of 71 percent, any two nodes are allowed to fail without service failure.
Having identical hardware for all nodes and all locations helps make it even simpler to deploy and administer.
The identical hardware makes each cluster and each node balance well out-of-the box so that each node and each disk handle an equal amount of work and data, optimizing parallelism in the solution.