between nodes can directly affect the overall processing power of the system, because there will be a large number of data exchange between nodes, are dependent on network transmission to complete.In such a scenario, a cheaper solution is to use the Gigabit switch to replace the now-commonly used GBE switch to improve network processing power and reduce network latency. However, the main improvement of this solution is throughput, and the delay may not necessarily meet some of the most demandin
How should we choose FCoE or iSCSI?
Do you still think that fiber channel (FC) is prepared for the data center, while iSCSI is prepared for SMB? We can tell you that this idea is outdated. With the increasing LAN speed, iSCSI has been applied in many data centers. Enterprises may adopt FCoE or iSCSI for the current product portfolio, future application requirements, organizational skills, budget, and other reasons. Next we will discuss how to choose FCoE or iSCSI.
First of all, I should declare
. Situation we don ' t need to handle all of the exceptions of the IEEE [754] standard. " As well as finding ways to use more effective processors, researchers is trying to use distributed processing to build More extensive deep-learning networks The can cope with much larger datasets. The latency of transfers over a network badly affects the speed of training. However, rearranging the training algorithms together with a shift from Ethernet networking to Inf
We need to learn a lot when using the Turbo linux system. Next, let's take a look at the solutions to the problems in detail. I hope you will gain some benefits. Turbo linux 11.3 (GreatTurbo Enterprise Server 11.3) was officially released.
This is the latest version of the Turbolinux server operating system. Its features are described as follows: x86, Intel EM64T, AMD64, and Itanium architectures are supported and optimized for Intel Nehalem 8-core processors.
Supports common IA server platforms
Use the nmcli command in RedHat/CentOS 7.x to manage the network
The default network service in Red Hat Enterprise Linux 7 and CentOS 7 is provided by NetworkManager, which dynamically controls and configures the network daemon. It is used to keep the current network device and connection in the working state, it also supports configuration files of the traditional ifcfg type.
NetworkManager can be used for the following types of connections: Ethernet, VLANS, Bridges, Bonds, Teams, Wi-Fi, mobile
-parallel SCSI and Fiber Channel and new storage interfaces, such as serially connected SCSI (Serial Attached SCSI, SAS), Serial ATA (Serial ATA, SATA) and external SATA (external SATA, eSATA ). You will also find advanced storage technologies such as USB3 (Scalable Host Controller Interface, Extensible Host Controller Interface [xHCI]) and Firewire (Institute of Electrical and Electronics Engineers 1394 ).
Storage area network
SAN provides block-level storage consolidation to share it with some
OLTP performance tests over a red hat compatible Kernel200 percent speedup of InfiniBand messaging; 137 percent faster solid state disk access. modern: Pro VIDES optimizations for large NUMA servers; improved power management and energy efficiency; fine grained CPU and memory resource control. reliable: supports the data integrity extensions and T10 protection information model, to stop copying upt data from being written to storage; hardware fault m
PairSystem resource monitoring is a required skill for O M personnel
From the OS perspective, including CPU/IO/Network/fs
From the DB perspective, including active sessions/on CPU/disks/top segments/top SQL, etc.
The utilization of database resources is also reflected at the OS level. Our goal is to make full and balanced use of OS computing resources.
Among the many monitoring tools, the performance data types supported by collectl should be the most comprehensive
Including IO/CPU/Network/nfs
DrbdIt is the block-level synchronous replication technology implemented by the kernel module. The synchronization level here can be adjusted.
Because drbd uses the network card for block replication. If InfiniBand is used for transmission, high concurrency can be effectively processed.
This is a type of replication and storage. It is nothing more like a hot standby machine, rather than a storage ha, it is better to ensure data security.
The industria
The PCI-X interface is an updated version of the connected PCI Bus (peripheral components Interconnect), still using traditional bus technology, but there are more wiring pins, at the same time, all connected devices share all available bandwidths, as described above.
1 What is the PCI-X and the original PCI interface is different: a change to the past 32-bit, the PCI-X uses 64-Bit Width to transmit data, so the bandwidth automatically doubled, the length of the expansion slot is inevitably incr
massive information in the big data era, including structured, semi-structured, dataset, and unstructured data analysis. At the same time, exalytics also supports hybrid data sources, including Oracle databases, teradata, Microsoft SQL Server, and standalone corner databases.
In addition, exalytics has powerful hardware and software configurations: 1 TB memory and 48 core processors; Support for obiee 11 GB; 200 GB/s wide TimesTen parallel memory database; support for memory parallel processi
InformationPrivate networks can only be used for the preceding purposes and cannot be used for other purposes.Network Protocol:Clusterware: TCP/IPRAC: UDPMulti-nic binding: Linux (bonding), Solaris (link aggregation), and Aix (etherchannel)Oracle recommends that the private network be configured with at least 1 GB of Network1. GB-level Ethernet Card2. InfiniBand (Oracle exadata solution), the Protocol Stack is less than TCP/IP, consumes less CPU reso
resource pool, then, place the newly created storage volume in one of the SSDS (with minimal performance impact ).Storage fabric Management
After the storage unit is created, the connection between the workload server and the storage volume is created. Then, the following storage network technologies, such as fc, iscsi, infiniband, and fcoe, provide unified interfaces. Then this framework provides the best zone management and fabric analysis to deter
ZOVN-lossless Virtual Network
Note:ZVALEThis is also an article published by the IBM Research Institute, which may be an extension of VALE.
Currently, the data center network is dominated by two trends. One is for Lossless layer-2 fabrics, which is based on enhanced Ethernet and infiniband, by improving performance and performance. On the other hand, it is based onSoftware Defined NetworkThis makes it possible for overlapping virtual networks (SDN is
Lossless assurance of virtual networks-zOVN, virtual lossless-zovn
Note:ZVALEThis is also an article published by the IBM Research Institute, which may be an extension of VALE.
Currently, the data center network is dominated by two trends. One is for Lossless layer-2 fabrics, which is based on enhanced Ethernet and infiniband, by improving performance and performance. On the other hand, it is based onSoftware Defined NetworkThis makes it possible for
. now, if you have 10 Gbit/s Ethernet, or DDR (dual data rate) IB (InfiniBand), or a faster network in the future, so the existing NFS protocol can make these high-speed networks run like on 1 GB Ethernet.
Around 1991, I was called by a site for technical support. they have two Cray supercomputers connected through HiPPI (high-performance parallel interface, 800 MB), and they are also composed of an FDDI (Optical Fiber Distributed Data Interface, 100
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.