Browsing Posts in vDesign

Reading Time: 2 minutesOpenIO was a startup founded 26 June 2015 by a team of 6 co-founders (Guillaume Delaporte, Jean-François Smigielski, Julien Kasarherou, Laurent Denel, Marie Ponseel, Romain Acciari), experts in mail and data infrastructures. The headquarter was located in Lille, France, and there was also an OpenIO office in San Francisco. But on 24 July 2020, OVHcloud acquired OpenIO for an undisclosed amount.

Reading Time: 2 minutesNVMe over Fabrics (NVMe-oF) is a perfect alternative to the tradition protocols (iSCSI, FC, iSER, SMB3, and NFS) used to access external enterprise storage. These protocols are good for SAS drives, but they are proven to be inefficient for NVMe flash devices because they are using legacy commands sets designed for generic drives. The new NVMe-oF use the same NVMe commands designed only for fast flash drivers.

Reading Time: 2 minutesThere is a big issue in vCenter Server, with sensitive information disclosure vulnerability in the VMware Directory Service (vmdir). Under certain conditions vmdir that ships with VMware vCenter Server, as part of an embedded or external Platform Services Controller (PSC), does not correctly implement access controls.

Reading Time: 7 minutesQNAP is one of the leaders in the Home/SMB NAS area, with a lot of products including also some Enteprise solutions. But the big advantage of this product is the flexibility to add “apps” and extend the functions of the NAS itself to not only store data, but also use them or provide vertical solutions (like for example video-surveillance).

Reading Time: < 1 minuteThis year is very active for NAKIVO: on January they announced the version of NAKIVO Backup & Replication v9.1, on February the NAKIVO Backup & Replication v9.2 and now it’s the turn of NAKIVO Backup & Replication v9.3. The newest version offers native protection of Oracle databases via RMAN.

Reading Time: < 1 minuteThe iSCSI Extensions for RDMA (iSER) is a computer network protocol that extends the Internet Small Computer System Interface (iSCSI) protocol to use Remote Direct Memory Access (RDMA). RDMA is provided by either the Transmission Control Protocol (TCP) with RDMA services (iWARP) that uses existing Ethernet setup and therefore no need of huge hardware investment, RoCE (RDMA over Converged Ethernet) that does not need the TCP layer and therefore provides lower latency, or InfiniBand.

Reading Time: 4 minutesOne important concept of virtual networking is that the virtual network adapter (vNIC) speed it’s just a “soft” limit used to provide a common model comparable with the physical world. The real limit depends by several aspects, included the hpyervisor, the CPU speed, the available RAM and (for external comunication) also by the physical NIC speed. For this reason, the Intel e1000 and e1000e vNIC can reach a real bandwidth bigger than the canonical 1 Gpbs link speed. But what about the vmxnet3 vNIC that can advertise also the 10 Gpbs link speed. What is […]

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