IBM TS7650G PROTECTIER DEDUPLICATION GATEWAY, Руководство пользователя

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The physical throughput limit restrains the amount of I/O and resources
replication consumes on the local repository. Implicitly, this reduces the total load
on the replication networks used by the repository (you can have 2 networks) and
the amount of resources needed on the peer repository, as well.
The nominal throughput directly affects the load on the destination repository. On
the source repositories, the replication nominal rate does not necessarily compete
with the backup. Setting the limit on a source repository guarantees that the
backup gets the total possible throughput minus the nominal limit, but in many
cases this is not needed.
The Replication Rate Limits window displays physical and nominal throughput.
You can define one limit that applies to both incoming and outgoing replication
activity or accept the Default settings mode, Combined settings mode, or you can
define separate limits for incoming and outgoing replication activity by choosing
the Individual settings mode.
Procedure
1. From the Systems Management view, select Set replication rate limits from the
Replication
menu.
2. Choose the preferred mode to define the incoming and outgoing replication
rate limits:
v Default settings
v Combined settings
v Individual settings
3. Select the checkbox next to the desired option and enter a value (in MB/Sec). If
a checkbox is not selected, the value will revert to an unlimited replication rate.
Note: When replication time frames are defined and replication is taking place
with the time frame, replication will not be limited. If the system is not within
the replication time frame, no replication will take place.
4. To return to the original replication rate limits that were defined during
installation for the physical and/or nominal throughputs, select Default system
settings
as the mode. The values will default to their original settings at setup.
Following are the default values for the combined replication rate limits:
Table 32. Combined replication rate limits
Combined settings Default values (Incoming & Outgoing)
Physical throughput limits (MB/Sec) Unlimited
Limit when no backup or restore load
(MB/Sec) Max nominal throughput (the value selected
during new repository creation)
Limit during backup or restore load
(MB/Sec) 15% of max nominal throughput
Limit within a replication timeframe
(MB/Sec) Unlimited
Following are the default values for the individual replication rate limits:
Table 33. Individual replication rate limits
Individual settings Default values (Incoming) Default values (Outgoing)
Physical throughput limits
(MB/Sec) Unlimited Unlimited
Chapter 13. Native replication management (for FSI)
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