Dell DL1000 Appliance Users Guide - Page 42

Shadow Copy Optimization Writer, Performance Counters Writer

Get Dell DL1000 PDF manuals and user guides View all Dell DL1000 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 42 highlights

The Transfer Settings dialog box appears. 4. 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 Sets the maximum number of simultaneous disk write actions per agent Concurrent Writes 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 Maximum Segment Size Sets the maximum number of retries for each protected machine, if some of the operations fail to complete. Specifies the largest amount of data, in bytes, that a computer can receive in a single TCP segment. The default setting is 4194304. CAUTION: Do not change this option from the default setting. Maximum Transfer Specifies the number of commands that can be sent concurrently. You can Queue Depth adjust this option to a higher number if your system as a high number of concurrent input/output operations. Outstanding Specifies how many queued read operations will be stored on the back end. Reads per Stream This setting helps to control the queuing of agents. NOTE: Dell recommends setting this value to 24. Excluded Writers Select a writer if you want to exclude it. Since the writers that appear in the list are specific to the machine that you are configuring, you may not see all the writers listed. Some writers you may see include: • ASR Writer • BITS Writer • COM+ REGDB Writer • Performance Counters Writer • Registry Writer • Shadow Copy Optimization Writer 42

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
The
Transfer Settings
dialog box appears.
4.
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.
CAUTION: Do not change this option from the default setting.
Maximum Transfer
Queue Depth
Specifies the number of commands that can be sent concurrently. You can
adjust this option to a higher number if your system as a high number of
concurrent input/output operations.
Outstanding
Reads per Stream
Specifies how many queued read operations will be stored on the back end.
This setting helps to control the queuing of agents.
NOTE:
Dell recommends setting this value to 24.
Excluded Writers
Select a writer if you want to exclude it. Since the writers that appear in the list
are specific to the machine that you are configuring, you may not see all the
writers listed. Some writers you may see include:
•
ASR Writer
•
BITS Writer
•
COM+ REGDB Writer
•
Performance Counters Writer
•
Registry Writer
•
Shadow Copy Optimization Writer
42