HP StorageWorks EVA Controller HSG V8.8 Software - Manual (Page 141)

Glossary
141 Command Console V2.5 User Guide
strip
A RAID virtual disk using striping stores host data in pieces
called strips. One strip is stored on each member device in the
virtual disk. Together, the strips make up a stripe.
In some controllers, the strip size is used to tune the striped
virtual disk for a specific application:
■ If a virtual disk uses a small strip size compared to the size
of the average host request, the controller can break the host
data up into strips and can perform device accesses in
parallel using RAID 3 techniques. This optimizes the
virtual disk for applications requiring high data transfer
rates.
■ If a virtual disk uses a large strip size compared to the size
of the average host request, the controller can use RAID 5
techniques to perform multiple read accesses in parallel on
any device. This optimizes the virtual disk for applications
requiring high I/O request rates.
Also called a chunk, segment, or stripe element.
stripe
A RAID virtual disk using striping stores host data in pieces
called strips. One strip is stored on each member device in the
virtual disk. Together, the strips across the member devices
form a stripe.
strip size
The number of blocks of data that make up a strip.
In some controllers offering multiple-RAID-level virtual disks
such as RAID 3/5, the relationship between the strip size and
the average host I/O request size determines how the controller
accesses the devices in the virtual disk and affects the request
and data transfer performance of the subsystem.
striped virtual disk
Another name for a RAID 0 virtual disk.
striped mirrored virtual
disk
Another name for a RAID 0+1 virtual disk.
striped parity virtual
disk
Another name for a RAID 3 , or RAID 3/5 virtual disk.