HP NetRAID-4M Configuration and Upgrade Guide (Release 5)

Chapter 10 Glossary

RAID level migration feature

1. Sometimes referred to as container reconfiguration and container expansion.

The ability to change the RAID and/or add disk drives to a RAID without having

to back up and restore the data.

NOTE RAID, Multilevel Container

A multilevel container is a combination of one or more single-level containers.

Multilevel containers made up of two different container types combine the

beneficial characteristics of each of the two types. For example, a stripe set of mirror

sets combines the performance of a stripe set with the redundancy of a mirror set.

Multilevel containers appear in Windows Explorer as disk drives with file systems.

Each has its own drive letter. The single-level containers that make up the multilevel

container (the underlying containers) can be accessed only through the multilevel

container (the top-level container) that is using them.

The following multi-level container types are supported:

• Volume set of stripe sets

• Volume set of mirror sets

• Volume set of RAID-5 sets

• Stripe set of mirror sets

• Stripe set of RAID-5 sets

NOTE You cannot migrate to or from a RAID container that is using

more than 32 drives (even though the NetRAID-4M can

contain up to 48 drives).

NOTE The top-level container of a multilevel container can be only a

volume set or a stripe set.