Vraid6
Offers the features of Vraid5 while providing more protection for an additional drive failure, but
uses additional physical disk space.
W
World Wide Name
See
WWN
.
write back caching
A controller process that notifies the host that the write operation is complete when the data is
written to the cache. This occurs before transferring the data to the disk. Write back caching
improves response time since the write operation completes as soon as the data reaches the
cache. As soon as possible after caching the data, the controller then writes the data to the disk
drives.
write caching
A process when the host sends a write request to the controller, and the controller places the data
in the controller cache module. As soon as possible, the controller transfers the data to the physical
disk drives.
WWN
World Wide Name. A unique identifier assigned to a Fibre Channel device.
292 Glossary
Содержание EVA P6000
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