Use the Select MDisk panel in the Create an Image Mode
Virtual Disk wizard to select the managed disk (MDisk) to use to create
the image mode virtual disk (VDisk). If you are creating a mirrored
copy of the image mode VDisk, you can select a different MDisk for
each copy.
Introduction
If
mirrored copies are being created of the image mode VDisk, two tables
will display containing the MDisk for each respective copy. You can
select different a MDisk for each copy that you are creating.
Attributes
The
following attributes are displayed in the tables:
- Select
- Allows you to select an MDisk from which to create the image mode
VDisk.
- Name
- Displays the name of the MDisk.
- State
- Displays the state of the MDisk. The following values are possible:
- Online
- Indicates that the MDisk is online and available. All paths to
the MDisk are available.
- Degraded Paths
- Indicates that the MDisk is not accessible to one or more nodes
in the cluster. Degraded path state is most likely the result of incorrect
configuration of either the disk controller or the fibre-channel fabric.
However, hardware failures in the disk controller, fibre-channel fabric,
or node could also be a contributing factor to this state. Complete
the following actions to recover from this state:
- Verify that the fabric configuration rules for storage systems
are correct.
- Ensure that you have configured the storage system properly.
- Correct any errors in the error log.
- Degraded Ports
- Indicates that one or more 1220 errors have been logged against
the selected MDisk. The 1220 error indicates that the remote fibre-channel
port has been excluded from the MDisk. This error may cause reduced
performance on the storage controller and usually indicates a hardware
problem with the storage controller. To fix this problem you must
resolve any hardware problems on the storage controller and fix the
1220 errors in the error log. To resolve these errors in the log,
select . On
the Maintenance Procedures panel, select Start Analysis.
This action displays a list of unfixed errors that are currently in
the error log. For these unfixed errors, select the error name to
begin a guided maintenance procedure to resolve these errors. Errors
are listed in descending order with the highest priority error listed
first. Highest priority errors should be resolved first.
- Excluded
- Indicates that the MDisk has been excluded from use by the cluster
after repeated access errors. Run the directed maintenance procedures
to determine the problem. You can reset an MDisk and include it in
the cluster by running the include task.
- Offline
- Indicates that the MDisk is offline and unavailable. All paths
to this MDisk have been lost.
- Mode
- Displays the access mode of the MDisk. The following values are
possible:
- Unmanaged
- Indicates that the MDisk is not used by the cluster.
- Managed
- Indicates that the MDisk is assigned to an MDisk group and is
providing extents that virtual disks (VDisks) can use.
- Image
- Indicates that the MDisk is assigned directly to a VDisk with
a one-to-one mapping of extents between the MDisk and the VDisk.
- Capacity (MB)
- Displays the capacity of the MDisk in megabytes (MB).
- Controller Name
- Displays the name of the disk controller system that contains
the MDisk.
Actions
The
following actions are available:
- Back
- Click this button to return to the previous wizard panel.
- Next
- Click this button after you have completed this panel.
- Cancel
- Click this button to exit this wizard without creating an image
mode VDisk.