iSCSI and VMWare
Nov 15, 2010
In 2011 many small-medium-sized businesses will be taking their first steps towards virtualising their IT estate in order to reduce costs and improve flexibility. This is no surprise as VMware is putting a great deal of focus on this market by reducing the price and increasing the functionality of the "entry level" Essentials and Essentials plus bundles. One of the new features now available in the VMware VSphere Essentials Plus kitbag is the inclusion of vMotion giving the ability to migrate virtual machines from one physical host to another with no downtime. A pre-requisite for the use of vMotion is shared storage such as a NAS or a SAN. If a SAN will be the preferred option , there is a decision to be made, iSCSI or Fibre Channel storage. An iSCSI SAN is now a very popular option that should be considered for providing this shared storage in a VMware environment....
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What is a Data Backup?
Nov 9, 2010
In information technology, a backup or the process of backing up refers to making copies of data so that these additional copies may be used to restore the original after a data loss event. The verb is back up in two words, whereas the noun is backup (often used like an adjective in compound nouns). Backups are useful primarily for two purposes. The first is to restore a state following a disaster (called disaster recovery ). The second is to restore small numbers of files after they have been accidentally deleted or corrupted . Data loss is also very common. 66% of internet users have suffered from serious data loss . Since a backup system contains at least one copy of all data worth saving, the data storage requirements are considerable. Organising this storage space and managing the backup process is a complicated undertaking. A data repository...
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