CEPH is a popular open source storage software. However its write latencies are high. VirtuCache caches CEPH volumes to in-host SSDs and by doing so reduces VM level latencies considerably.
CEPH storage from Virtunet has all the features of traditional iSCSI SAN with the exception that it is reasonably priced because it uses commodity servers with all off-the-shelf hardware. And so it is ideally suited for backup and DR storage which needs to be cheap above all else.
Why deploy Disaster Recovery(DR) infrastructure when you already have backups? The main reason to deploy DR infrastructure is to protect against the rare case where you lose your entire datacenter. In case of a datacenter wide outage, you can flip over to your offsite DR data center. The DR datacenter…