- High speeds for audio/video professionals
- Greater capacity & reliability for server computers
- Data security: Hot-swap, remove, replace drives
A RAID configuration allows several hard drives to act as a single unit
in various ways, such as striping or mirroring. Some potential
advantages of RAID are greater capacity, reliability, speed, throughput
or better data integrity (or a combination of these) – often
at a more
affordable price than comparable single drives.
Throughout LaCie’s line of RAID solutions, there are various
RAID levels that each have their limitations and advantages. Choosing
the right RAID level depends entirely upon the user’s needs.
Common RAID Levels
- RAID 0: Striped Set - (or
Striped Volume) splits data evenly across two or more disks with no
parity information for redundancy.
- RAID 1: Mirrored Set - creates
a mirror or exact
copy of a set of data onto two or more disks, which is useful when read
performance is more important than capacity.
- RAID 0+1: Mirror of Stripes -
is a RAID level used for sharing and replicating data among multiple
disks.
- RAID 5: Striped Set With Parity
- uses block-level striping with parity data distributed across all
disks – an ideal way to get affordable redundancy.
- RAID 10: Stripe of Mirrors -
sometimes called RAID 1+0, it’s similar to a RAID 0+1 but
reversed since RAID 10 is a stripe of mirrors.
- Concatenation: JBOD - "Just a
Bunch of Disks" is a popular way to combine multiple disks into a
single virtual drive simply.
