November 2006
Intermediate to advanced
584 pages
14h
English
book
SAN Multiprotocol Routing: An Introduction and Implementation
by Jon Tate, Steve Fodor, Jure Arzensek
Content preview from SAN Multiprotocol Routing: An Introduction and Implementation
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426 SAN Multiprotocol Routing: An Introduction and Implementation
15.3.3 The amount of data and link sizing
You can use different sizing methods and estimations depending on your
environment and the application.
Link sizing for synchronous data replication
For synchronous data replication, you need to find the peak in write operations
over a period of time. The theoretical maximum for a peak in write operations is
influenced by many factors, such as the central processing unit (CPU),
application efficiency, networks, and storage devices.
For example, let us assume that the set of logical unit numbers (LUNs) that you
need to replicate has a peak of 110 MBps during the system’s busy hours. What
speed of the WAN link is required for data replication? ...
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