Short for information lifecycle management, ILM is the creation and management of a storage infrastructure and the data that it maintains. All information, or data, in a storage network has a specific lifecycle, from the time the information enters an organization’s system to the time it is archived or removed from the system.
The information may have a finite lifecycle where the data are eventually removed from a storage network when the information becomes outdated or no longer needed-or an infinite lifecycle if the information remains valuable to the organization retaining it.
The Three Stages in the Information Lifecycle
In general, there are three stages in the information lifecycle:
The creation and/or acquisition of the data. Information comes into the organization either by being created by one or more individuals or by being acquired through emails, faxes, letters, phone calls, etc.
The publication of the data. Some information needs to be published, either in print form or on a company’s intranet or a public Web site.
The retention and/or removal of the data. Some information must be archived for later use, and some information has a finite purpose and can be discarded once it has served its purpose or is no longer valuable to the organization.
Managing the Information Lifecycle
The management of the information lifecycle involves keeping the data accessible to the users who need the information and determining how the information is stored based on how high of a priority the information has in the organization at any given moment. At each stage in the information’s lifecycle, the management infrastructure must determine the best software, hardware and storage medium required for the information at that stage, and how those factors differ as the data move through the lifecycle.
Short for inverse multiplexing over ATM. IMA is a physical layer technology in which a high-speed stream of ATM cells is broken up and transmitted across multiple T1/E1 links, then is reconstructed back into the original ATM cell order at the destination. For companies with low to mid-range WAN requirements, the purchase of costly T3/E3 […]
- IM (Instant Message)
IM is short for instant message, a type of communications service that enables you to create a kind of private chat room with another individual in order to communicate in real time over the Internet, analagous to a telephone conversation but using text-based, not voice-based, communication. Typically, the instant messaging system alerts you whenever somebody […]
- Internet Message Access Protocol (IMAP)
Short for Internet Message Access Protocol, a protocol for retrieving e-mail messages. The latest version, IMAP4, is similar to POP3 but supports some additional features. For example, with IMAP4, you can search through your e-mail messages for keywords while the messages are still on mail server. You can then choose which messages to download to […]
- International Mobile Equipment Identity (IMEI)
IMEI is short for International Mobile Equipment Identity and is a unique number given to every single mobile phone, typically found behind the battery. IMEI numbers of cellular phones connected to a GSM network are stored in a database (EIR – Equipment Identity Register) containing all valid mobile phone equipment. When a phone is reported […]
Acronym for International Mobile Subscriber Identity, IMSI is a unique number that is associated with all GSM and UMTS network mobile phone users. An International Mobile Subscriber Identity is up to 15 digits long. The first three digits represent the country code, followed by the the network code. The remaining digits, up to fifteen represents […]