Owlcom software
basadO wlCom  Software
Let's Owl manage your files
Welcome Screenshots Buy now Download Write to Owl Subscribe to news FAQ Links

Memory for disk arrays

If reading the recorded call 1100100, the checklist call for him just 101. Comparing the original checklist obtained from the floor (porazryadnaya exclusive OR 101 = 011, then there is an error reading in operation), we have: 110 the third position. Accordingly, knowing what bits is erroneous, it is easy to correct the "raid". In addition, the code allows us not only to correct "raid " single mistake, but also found double-vat. In doing so, he is the oversupply of all levels with correction codes. This mosaic-small data storage is used rarely, because bad cope with a large number of request-related, difficult to organize and has little advantage over RAID level 3. Advantages: -- rapid correction of errors ( "on the fly"); -- very high speed transmission of large amounts of data; -- while increasing the number of disks, reduced overhead; -- rather simple realization. Disadvantages: -- high cost, low number of drive; -- Resiliency lower than that of RAID 1; -- slow processing of requests (not suitable for systems-oriented transaction processing). i. RAID 3 - tolerant array with parallel data transfer and even incumbent (Parallel Transfer Disks with Parity) RAID Level 3 - a fault with an array of parallel-input withdrawal and an additional disk drive on which information is recorded checklist.
Next part

Welcome    Screenshots    Download    Buy now Write to Owl    Subscribe to Owl news   FAQ   Links  
Copyright 2004-2008 OwlCom Software .

OISV - Organization of Independent Software Vendors - Contributing Member Software Submit .NET - FREE and PREMIUM search engines submission and software submission and software promotion service. Owl Commander
Locations of visitors to this page

Valid HTML 4.01 Transitional