October 25, 2013
Active Directory Replication
Active Directory Replication,The Active directory is a database. It designed to handle a large number of read and search operations and a smaller number of changes and updates. Active directory replication is to ensure that the information stored on all domain controllers within a domain synchronized. The domains and domain controllers are multiple communication paths connect them.…
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September 20, 2013
Dynamic Routing
Routing,Routing Information Protocols (RIP) RIP is using the algorithms known as “distance vector algorithms”. They are sometimes known as Ford-Fulkerson algorithms and the term Bellman-Ford is also used. It send the complete routing table out to all active interface every 30 second.RIP only uses hop count to determine the best way to a remote network.…
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September 13, 2013
Basic rules for naming devices in the SAN
SAN,The Storage Networking Industry Association (SNIA) defines the storage area network (SAN) as a network whose primary purpose is the transfer of data between computer systems and storage elements. A SAN is a specialized, high-speed network that attaches servers and storage devices. Use of descriptive naming conventions is one of the most important factors in…
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September 4, 2013
SCSI event codes for VMware ESX/ESXi
VMware,SCSI (Small Computer System Interface) is an ANSI standard used for attaching peripheral devices to computers. It ensures quick data transfer with a transmission rate of more than 40mbps. SCSI was standardized in 1986 and is still being used. The recent developments of SCSI are Serial Storage Architecture (SSA), SCSI-over-Fibre Channel Protocol (FCP), Serial Attached…
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August 27, 2013
IP Routing
Routing,What is Routing? IP routing is the process of moving packets from one network to another network and delivering the packets to hosts. In another way Routing is used for taking a packet from one device and sending it through the network to another device on different networks. What is Routing Protocols and Routed Protocols?…
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July 30, 2013
VMware Virtual Machine Disk
VPS,The .VMDK file extension is used with the Virtual Machine Disk VMDK format specification used with VMware ESX, ESXi or typically with Vmware Vritual machines. VMDK is an open file format can be compared with the MS Virtual Hard Drive (VHD) disk format and they are not directly compatible. Tools such as the VMDK to…
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March 29, 2013
Feature of VM Consolidation in vSphere 4.0U2
VPS,VM Consolidation is a feature in vSphere 4.0U2. What does this feature do and how does this really stick with VM snapshots? To get a better view, one should have knowledge in snapshots feature and snapshot manager. What are snapshots? It is very much similar to a well known feature called system restore that you…
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March 22, 2013
Resilient File System (ReFS) New local file system introduced in Windows Server 8
Windows General,Resilient File System (ReFS) is a new local file system introduced in Windows Server “8”, immediately addressing critical server customer needs, and providing the foundation for future platform evolution, for all Windows customers. The main goal behind ReFS is to improve resiliency and reliability, especially in instances when a power failure happens. NTFS could sometimes…
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March 15, 2013
The FHRP (First-hop Redundancy Protocols)
Protocol,The Multilayer switches can act as IP gateway for connected hosts by providing gateway addresses at VLAN SVIs and Layer 3 physical interfaces. These switches can also participate in routing protocols ad a traditional routers does. Multi Layer switch will offer a means of preventing one switch (gateway) failure from isolating an entire VLAN. The…
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