Creating an image mode virtual disk–Verify attributes

Use the Verify Attributes panel in the Create an Image Mode Virtual Disk wizard to confirm that the properties you have set for the image mode virtual disk (VDisk) are correct.

Attributes

The following attributes are displayed in the table:
VDisk Name
Displays the name of the VDisk. If you did not specify a name, a default name is assigned.
Unmanaged disk–Copy 0
Displays the name of the MDisk used for Copy 0.
Unmanaged disk–Copy 1
Displays the name of the MDisk used for Copy 1.
I/O Group Name
Displays the name of the I/O group that this image mode VDisk is a member of.
Preferred Node
Displays the preferred node for I/O of this image mode VDisk.
MDisk group name–Copy 0
Displays the name of the MDisk group for Copy 0 of the image mode VDisk.
MDisk group name–Copy 1
Displays the name of the MDisk group for Copy 1 of the image mode VDisk.
Capacity
Displays the capacity of the image mode VDisk.
Import
Displays if the space-efficient VDisk copy is imported from the MDisk. The following values are possible:
  • Yes
  • No
Warning level
Displays the warning level threshold. When the used capacity first exceeds this value, a warning message is sent. This value is displayed as a percentage.
Autoexpand
Displays whether the space-efficient VDisk will automatically expand its real capacities by allocating new extents from their MDisk group. The following values are possible:
  • Yes
  • No
Grain size
Displays the grain size in kilobytes (KB) for the space-efficient image mode VDisk.
Cache Mode
Indicates the cache mode for this image mode VDisk. The following values are possible:
Read/Write
All read and write I/O operations that are performed by the VDisk are stored in the cache.
None
All read and write I/O operations that are performed by the VDisk are not stored in the cache.
Unit Device Identifier
The unit device identifier as a decimal or hexadecimal value.
Mirrored
Displays whether the image mode VDisk is mirrored.
Synchronization Rate
Displays the current synchronization rate for the VDisk. A value of zero (0) disables synchronization. The default value is 50 (2 MB per second).

The following table shows the relationship of the rate value to the data copied per second.

Table 1. Relationship between the rate value and the data copied per second
User-specified rate attribute value Data copied/sec
1 - 10 128 KB
11 - 20 256 KB
21 - 30 512 KB
31 - 40 1 MB
41 - 50 2 MB
51 - 60 4 MB
61 - 70 8 MB
71 - 80 16 MB
81 - 90 32 MB
91 - 100 64 MB
Create copies in synch
Displays whether synchronized copies of the VDisk are created. The following values are available:
  • Yes
  • No

Actions

The following actions are available:

Back
Click this button to return to the previous wizard panel.
Finish
Click this button to create an image mode VDisk based on the values that are displayed in the table.
Cancel
Click this button to exit this wizard without creating an image mode VDisk.
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