Dell PowerVault DL4000, Руководство пользователя

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• Amount of data change on disk
• Available network bandwidth
• Repository disk subsystem performance
• Amount of memory available for data buffering
You can adjust the performance options to best support your business needs and fine-tune the
performance based on your environment.
To modify transfer settings:
1. In the Core Console, do one of the following:
• Click the
Machines tab, and then click the hyperlink for the machine that you want to modify.
• In the navigation pane, click the machine that you want to modify.
2. From the Machines tab, perform one of the following:
• Click the hyperlink for the machine that you want to modify.
• In the navigation pane, select the machine that you want to modify.
3. Click the Configuration tab, and then click Transfer Settings .
The current transfer settings appear.
4. On the Transfer Settings page, click Change .
The Transfer Settings dialog box appears.
5. Enter the Transfer Settings options for the machine as described in the following table.
Text Box Description
Priority Sets the transfer priority between protected machines. Enables you to assign
priority by comparison with other protected machines. Select a number from 1
to 10, with 1 being the highest priority. The default setting establishes a priority
of 5.
NOTE: Priority is applied to transfers that are in the queue.
Maximum
Concurrent
Streams Sets the maximum number of TCP links that are sent to the Core to be
processed in parallel per agent.
NOTE: Dell recommends setting this value to 8. If you experience
dropped packets, try increasing this setting.
Maximum
Concurrent Writes Sets the maximum number of simultaneous disk write actions per agent
connection.
NOTE: Dell recommends setting this value to the same value that you
select for Maximum Concurrent Streams. If you experience packet loss,
set this value slightly lower. For example, if Maximum Current Streams is
set at 8, set this option to 7.
Maximum Retries Sets the maximum number of retries for each protected machine, if some of
the operations fail to complete.
Maximum
Segment Size Specifies the largest amount of data, in bytes, that a computer can receive in a
single TCP segment. The default setting is 4194304.
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