mellanox infiniband

conditions. Only the use of HP's Network module (Blade service switch), Blade Service can support virtual connection. If the user chooses a Cisco, Brocade or Foundry network module, then the blade service does not support virtual connections, unless the modules also add the appropriate functionality. misunderstanding four: Blade changes user network structure Because each service blade in the chassis is connected through a network module (switch), these network modules are also selectively

Glusterfs is mainly used in cluster system and has good scalability. The structure of the software is good, easy to expand and configure, through the flexible collocation of each module to get targeted solutions. Resolves the following issues: networked storage, federated storage (fusing storage space on multiple nodes), redundant backups, load balancing of large files (chunking). Due to the lack of some key features, reliability has not been tested for a long time, it is not suitable for the n

generic user-space asynchronous system call interface for asynchronous IO RDMA RDMA I/O engine supports RDMA memory semantics (rdma_write/rdma_read) and channel Doctrine (SEND/RECV) for Infiniband,roce and IWARP protocols External indicates that an external IO engine (binary file) is to be invoked. e.g. IOENGINE=EXTERNAL:/TMP/FOO.O will load the IO engine in/tmp FOO.O 5) IO Depth If the IO engine is asynchronous, this specifies the depth of the queue

typically has two to eight object storage targets, and each object storage target manages a local file system. The space of the lustre file system equals the total capacity of all objects to store the target. The client (Clients) can access and use the data. Lustre provides a unified namespace for all clients. The MDT, OST, and client can reside on the same node (typically for testing), but in a typical production environment these feature components are installed in different nodes that use th

remote Replication (mirroring), which connects two sans via Fibre Channel FC for Remote Mirroring (replication). When a disaster occurs, the backup data center replaces the primary data center to ensure continuity of the system's work. This remote disaster preparednessThere are some defects in the method, such as: high cost, poor interoperability of equipment, short geographical distance (10 km), etc., these factors hinder its further popularization and application. at present, a variety of IP

3.0 version of multi-channel technology can also achieve the automatic identification of network available paths and automatic addition, which can greatly simplify the management of the difficulty. Prerequisite conditions The following two conditions are required to implement a multichannel feature: 1. Server-side is required for Windows Server, and the SMB client is Windows Server 2012 or Windows 8. 2. Need more than the best for the same specification network adapters (can be different br

has a lot of choices, can support Gigabit Ethernet, can also support 10G, FC, InfiniBand, etc., its network module also has 2/3-layer switch function. In addition, for special applications, can also implement the blade server transmission. For example, the HP C Series provides an Ethernet pass-through module (pass through) that provides a straight-through LAN connection to the blade server. A one-to-one network adapter for wiring racks that provides

the device is interoperable. Core-level Fibre switch The core-level switches, also called guides, are typically located in the center of a large san, making several edge switches interconnected to form a SAN network with hundreds of ports. The core switch can also be used as a separate switch or edge switch, but its enhanced functionality and internal structure make it work better in the core storage environment. Other features of the core switch include supporting protocols other than optica

: Compute node Storage: Memory Computational network: Compute Networks Management Network: Managing Networks ② Most HPCC systems are equipped with two networksTCP-based Management network compute Network, which can be TCP or other protocol based, usually a high-speed network such as InfiniBand or Myrinet 10G ③ topology Diagram Generally accepted on the Internet: This is "imaginary" according to the actual situation:④ required Software components (b

backup strategies that are unimaginable to reduce impact. It is also important to understand that snapshots do not work. It is also important to present continuous images to backup applications, where management of snapshots and snapshot backups still need to be managed by the same NAS. Isilon A new backup accelerator that provides users with a dedicated node or a specific node set selection to perform backup functions. When a dedicated backup node transmits data to a backup destination, it al

an Oracle ExaData product introduction 1 hardware and software integrated machine The lower level uses the common Oracle software, so his reliability and security are protected Hardware: Use larger memory and larger flash to store Configuration sub one-eighth with/One-fourth with/full For example, full with 4T memory (storing thermal data), 22T flash memory (storage temperature data) 2 Framework principle: 1) using InfiniBand to support multiple con

consistency, especially suitable for e-commerce applications; fully compatible with MySQL; While there are so many benefits, there are some limitations: only support InnoDB engine; All tables must have a primary key; Explicit lock operations such as lock table are not supported; Lock conflict, deadlock problem is more; Xa not supported; Cluster throughput/performance depends on the short board; The new Join node adopts SST time Price high; There i

using DRA technology such as InfiniBand. 2. You can minimize cache fusion traffic and reduce the interdependence between instances. Service is the latter way of thinking based on the development of the deletion. Look at the partition technology that is very similar to the service. If the number in a table is huge, Oracle recommends using partition table to spread the data across multiple physical segments according to a certain pattern, such as time