Data centers are comprised of a high speed, high demand networking communication systems capable of handling the traffic for Storage Area Networks (SAN), Network Attached Storage (NAS), file/ application/web server farms, and other components located in the controlled environment. The control of the environment relates to humidity, flood, electrical, temperature, fire controls, and of course, physical access. Communication in and out of the data center is provided by WAN (Wide Area Network), CAN/MAN (Metro Area Network) and LAN (Local Area Network) links in a variety of configurations depending upon the needs of the particular center. A properly designed data center will provide availability, accessibility, scalability, and reliability 24 hours a day, 7 days a week, 365 days per year minus any scheduled downtime for maintenance. Telephone companies work for 99.999% uptime and the data center is no different. There are two basic types of data centers: corporate and institutional data centers (CDCs) and Internet Data Centers (IDCs). CDCs are maintained and operated from within the corporation, while IDCs are operated by Internet Service Providers (ISPs). The ISPs provide third-party websites, collocation facilities and other data services for companies such as outsourced email. Critical data centers are monitored by a NOC (Network Operations Center) which may be in-house or outsourced to a third party. The NOC is the first place outages are realized and the starting point for corrective action. NOCs are generally staffed during the data center’s hours of operations. In 24 x 7 data centers, the NOC is an around the clock department. Equipment monitoring devices will advise the NOC of problems such as overheating, equipment outages, and component failure via a set of triggers that can be configured on the equipment or via a third party monitoring software which can run over all of the equipment.
Q. What is the 40GbE max supported distances? A. The IEEE 40GBASE-X standard describes the following: 40GBASE-SR4 supports up to 100m on OM3, and 150m on OM4. There is no support for OM2 or OM1 (these are considered legacy). 40GBASE-LR4 supports up to 10km on 9um SM fiber (same fiber used for 10G single mode […]
Trend #1: Disaster prevention Key strategies such as business continuity and disaster prevention are expected to gain significant importance in the future. Many organizations have a strong awareness of possible failures both in terms of man-made and natural disasters. Trend #2: Shift to Internet data centers In 2015, organizations across the globe will be shifting […]
Storage network technology has developed in the following three main configurations: Direct Attached Storage (DAS), Network Attached Storage (NAS), and Storage Area Networks (SAN). Direct Attached Storage (DAS) DAS is the traditional method of locally attaching storage devices to servers via a direct communication path between the server and storage devices. As shown in Figure […]