Lotus Notes’ RAID technology assists protect data from being destroyed in the event of a disk failure. It blends multiple drives on hard disks into one file system and makes use of fail-tolerance in order to rebuild information in the event of a single drive failing. This kind of technology is a great option for businesses who want to ensure that their data remains accessible throughout the day.
A search for Lotus Notes in the iDataAgent catalog obtains the transaction log of a database, and connects it to the specific Notes database. The transaction log is split into smaller data files, called sign extents. Each one is 64MB in size. Each sign extent is accompanied by an entry that indicates the date on which the database was established and when the Fixup activity ran it before.
There are several levels of raid. Each one offers a different level of performance and failure tolerance. RAID 1 is the most widespread, as it employs mirroring to essentially double the storage capacity of an system. It’s not 100% reliable. If the mirrored disk fails it could take a long time to restore data from the remaining drives. RAID 5 is a combination of striping and parity that gives you good storage and performance. It requires two extra disks for parity, but it offers the best performance and storage.