Lotus Notes’ RAID technology helps safeguard data from being destroyed in the event of a disk failure. It blends multiple drives on hard disks into one file system and utilizes failure tolerance to rebuild data in the event of a single drive failure. This technology is ideal for companies that need to ensure that their information is always available.
A search on the lotus notes iDataAgent Catalog obtains a database’s transaction log and affixes it with a specific Notes Database. The transaction log is broken into smaller data files, referred to as sign extents, each one 64MB in size. Each sign extent has a record that indicates the date of creation of the database and the date it was last executed by the Fixup activity.
There are various levels of raid, and each provides an individual level of performance and fault tolerance. RAID 1 is the most frequent, since it makes use of mirroring to essentially double the storage capacity of an system. However, it’s not completely foolproof. If the mirrored disk fails it will take hours to recover data from remaining drives. RAID 5 is another option that combines striping with parity to offer good storage and performance. It requires two additional disks to achieve parity, but is the best balance between storage capacity and find out this here efficiency.