Saturday, August 20, 2011

What is true Availability?


Availability is the proportion of time a system is in a functioning condition. This is often described as a mission capable rate. Mathematically, this is expressed as 1 minus unavailability. Availability combines MTBF with a second metric called mean time to repair (MTTR) that measures the time required to acknowledge a problem, respond to it and complete a repair. Availability is typically expressed as a number of “nines” representing the percentage of time over a year’s worth of use that a given system is operational. For example, a device with an MTBF of 500,000 hours and a MTTR of four hours would have an availability of .999992, or 99.9992 percent (500,000 ÷ 500,004). That translates to an expected downtime of 4.2 minutes per year.





Saturday, June 11, 2011

A Computer Glitch? What is the cause and effect to a business?

A Computer Glitch is an unplanned outage that later shows up as some sort of security breach or hack, a techincal failure or a human error. Disruptions to the normal business flow impact the organizations reputation. The longer the outage the higher the business exposure and loss of revenue.

How to achieve “Business As Usual”? Two-Factor Authentication (2FA) would protect the last line of defense of your computer systems and implementation of a remote failover server geographically dispersed would protect the the business from unplanned outages that effect the site, the immediate area or a region.

Need a ZeroIMPACT solution? Mission-Critical business's implement ZeroIMPACT solutions for Security and Data Protection to eliminate the business risk of unplanned and planned outages to achieve maximum availability.

Examples of recent 2011 computer glitches causing a disruption or an unexpected shutdown:

  • The last line of your computers security defense was justed hacked.What do you do? RSA a division of  EMC was hacked on Thursday suffering a sophisticated hacker attack that resulted in the theft of sensitive information related to its popular SecurID two-factor authentication products. Seed codes were compromised - the worst possible breach and exposure - RSA has over 40 Million SecureID tokens deployed. The exposure can go beyond RSA and effect thousands of customers if the intelligence gathered can be used to breach other companies last line of defense.
  • A system-wide computer problem at US Airways grounded an undetermined number of flights on Friday:
  • US Airways averages 3,000 flights per day. "US Airways is experiencing a computer system outage that has impacted usairways.com and the airline's airport computer system," the carrier said in a statement." Early reports indicate that the system's outage is the result of a power outage near one of the airline's data centers in Phoenix, AZ.

Friday, June 10, 2011

ZeroIMPACT™ solutions for Data Protection

ZeroIMPACT™ solutions for Data Protection, is the elimination of business risk of unplanned and planned outages for mission-critical solutions inside Service-Level Agreements to allow uninterrupted business operations. IT Professionals looking for the "holy-grail" for business computing to eliminate the business impact of natural disasters, planned events and unexpected outages. To achieve continuous service to an application with minimal downtime or business interruption, while maintaining the health of the server, application, or database 24x7x365.

Focus is placed on Business Continuity, Resiliency and Resumption in geographically dispersed environments to with stand outages, enable failover or failback of applications with ZeroIMPACT™ in all industries.