Hitachi MK-97DF8018-00 User Manual

Page 86

Advertising
background image

Glossary–14

Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide

A B C D E F G

H

I

J

K

L M

N O

P

Q

R S T

U

V W

X Y Z

write order guarantee

Ensures that data is updated in an S-VOL, in the same order that it is

updated in the P-VOL, particularly when there are multiple write

operations in one update cycle. This feature is critical to maintain data

consistency in the remote S-VOL and is implemented by inserting

sequence numbers in each update record. Update records are then

sorted in the cache within the remote system, to assure write

sequencing.

write workload

The amount of data written to a volume over a specified period of time.

Advertising