HP 8/20q User Manual page 149

Vraid6 Vraid6 has the highest availability of any Vraid type. It uses dual parity to provide protection
from simultaneous failure of two disk drives within a parity stripe. Vraid6 stripes have four data
blocks and two parity blocks. A new disk group type has been added to facilitate Vraid6
support. The enhanced disk group can simultaneously contain virtual disks of all supported
Vraid types. The legacy disk group type supports all Vraid types except for Vraid6. The disk
group type is set at the time of creation and cannot be changed after that time.
Note: Simple SAN Connection Manager supports Vraid6 only for the EVA4400/6400/8400
running firmware version 9500000 or later.
WWPN World Wide Port Name
HP StorageWorks Simple SAN Connection Manager User Guide 149