Lotus Notes’ RAID technology assists protect data from destruction in the event of a disk failure. It blends multiple hard disk drives into one file system. It also makes use of fail-tolerance to rebuild information in the event of a single drive failing. This type of technology is a great choice for companies who need to ensure that their information remains accessible all the time.
A search on the lotus notes iDataAgent Catalog retrieves a database’s transaction log, and associates it with a specific Notes Database. The transaction log is divided into smaller data files known as sign extents. Each one is 64MB. Each sign extent is accompanied by an entry that indicates the date when the database was initially constructed and also the date when the Fixup process was run previously.
There are various levels of raid. Each level offers different performance and the ability to handle faults. RAID 1 is most common due to the fact that it uses mirroring in order to double the storage capacity. However, it’s not 100% secure. If the mirrored disk fails it will take hours to restore data from the remaining drives. RAID 5 is another option that combines striping and parity to offer good storage and performance. It requires two additional disks to achieve parity, but it provides the best balance between storage capacity and efficiency.