CS Guide teacher's notes:
These should include failover
systems, redundancy, removable
media, offsite/online storage.
RAID (redundant back up system that works by saving data on multiple hard drive disks)
Master/slave back up system (similar to RAID but it distributes data over multiple servers)
Sharding (takes a file and breaks it into smaller fragment and spreads it across the back up system, very secure when used with master/slave)
Failover systems (mechanism for switching over from broken server to an active one)
Security (physical security/access to server rooms-software security/encryption, checksums, certificate, monitoring)
Environment/Location
ACID (protocol for reliable storage: Atomicity, Consistency, Isolation, Durability)
Training (properly using software, types of backups, using cloud technology, troubleshooting)
Terms:
Checksums = indicator of message integrity
Redundancy = the duplication of information at several points, to reduce the loss of information given any one point fails
These should include failover
systems, redundancy, removable
media, offsite/online storage.
Terms:
Checksums = indicator of message integrity
Redundancy = the duplication of information at several points, to reduce the loss of information given any one point fails