RAID or Redundant Array of Inexpensive Disks is a technology for storing the same data across different disks to ensure data redundancy. RAID also employs data stripping (a process where data is divided into blocks and spread over several disks) which improves performance. A RAID appears to the operating system as a single logical hard disk. Continue reading “Understanding RAID”
Clustering vs. Mirroring vs. Log shipping vs. Data Replication
In this article let us analyse the various technologies that ensure high data availability and redundancy. The following table makes a comparative analysis of clustering, mirroring, log shipping & data replication. Continue reading “Clustering vs. Mirroring vs. Log shipping vs. Data Replication”