Fujitsu ETERNUS CS800 S6 User Manual page 267

certain times. For example, you might configure replication throttling to occur during
planned backup times to avoid network contention.
For more information about configuring the ETERNUS CS800 for replication, see
"Replication" on page
To schedule replication throttling:
1. On the Scheduler page, add or edit an event in the Replication Throttle row (see
"Adding or Editing a Scheduled Event" on page
2. Specify the maximum allowed bandwidth by entering a value in the Bandwidth box
and selecting the units in the drop-down box (KB/s or MB/s). The lowest value you can
set is 32 KB/s. The highest value you can set is 125 MB/s for 1GbE and 500 MB/s for
10GbE.
CAUTION!
Do not set the maximum allowed bandwidth to a value that is lower than
necessary. If the maximum allowed bandwidth is set to the lowest value, large
replication jobs may fail.
During the replication throttle event, the ETERNUS CS800 will limit the amount of data
it sends during source replication so that it does not exceed the specified bandwidth.
After the replication throttle event ends, the ETERNUS CS800 will no longer throttle the
sending of source replication data (until the next replication throttle event occurs).
Do not configure a throttle schedule if a constant throttle is enabled. The scheduled
replication throttling bandwidth settings take precedence over the constant throttle
value. (The currently active replication throttle rate appears on the Home page under
Current Activity.)
3. (Optional) Specify when and how often the event reoccurs (see
a Scheduled Event" on page
4. Click Apply.
About Replication Throttling Statistics
Keep in mind the following information when observing actual network bandwidth usage
during a replication throttle event:
During a replication throttle event, only outgoing replication data traffic is throttled,
l
not other outgoing traffic. Because of this, you may observe network usage to be
higher than the specified maximum bandwidth. Differences in the sampling time
period may also cause discrepancies between the specified maximum bandwidth and
observed traffic.
If the ETERNUS CS800 is configured to use a bonded network interface for replication
l
traffic, load balancing is determined independently by the bonding mode selected for
the interface (see
ETERNUS CS800
340.
269).
"Network" on page 293). Because of this, you may need to sum the
264).
"Setting Recurrence for
10.7 Scheduler
267