VDS_SUB_SYSTEM_PROP structure
[Both the Virtual Disk Service and dynamic disks are deprecated as of Windows 8 Consumer Preview and Windows Server 8 Beta, and may be unavailable in subsequent versions of Windows. For more information, see Windows Storage Management API.]
Applies to: desktop apps only
Defines the properties of a subsystem object.
Syntax
typedef struct _VDS_SUB_SYSTEM_PROP {
VDS_OBJECT_ID id;
LPWSTR pwszFriendlyName;
LPWSTR pwszIdentification;
ULONG ulFlags;
ULONG ulStripeSizeFlags;
VDS_SUB_SYSTEM_STATUS status;
VDS_HEALTH health;
SHORT sNumberOfInternalBuses;
SHORT sMaxNumberOfSlotsEachBus;
SHORT sMaxNumberOfControllers;
SHORT sRebuildPriority;
} VDS_SUB_SYSTEM_PROP;
Members
- id
-
The GUID of the subsystem object.
- pwszFriendlyName
-
The name of the subsystem, typically a brand name and a model name; a zero-terminated, human-readable string.
- pwszIdentification
-
The subsystem identifier; a zero-terminated, human-readable string.
- ulFlags
-
A bitmask of one or more VDS_SUB_SYSTEM_FLAG enumeration values.
- ulStripeSizeFlags
-
The set of stripe sizes supported by a provider for striped volumes and/or LUNs. A stripe size must be a power of 2. Each bit in the 32-bit integer represents a size, in bytes. For example, if the nth bit is set, then VDS supports stripe size of 2^n. Thus, bits 0 through 31 can specify 2^0 through 2^31.
- status
-
A VDS_SUB_SYSTEM_STATUS enumeration value that specifies the status of the subsystem object.
- health
-
A VDS_HEALTH enumeration value that specifies the health state of the subsystem. The following are the valid values for this member.
- VDS_H_UNKNOWN (0)
- VDS_H_HEALTHY (1)
- VDS_H_FAILED (8)
- VDS_H_DEGRADED (11)
- sNumberOfInternalBuses
-
The number of buses (or "channels") that the subsystem contains.
- sMaxNumberOfSlotsEachBus
-
The maximum number of slots that each of the buses can include. Each slot can accommodate one drive. The subsystem model assumes that each bus has the same maximum number of slots.
- sMaxNumberOfControllers
-
The maximum number of controllers that the subsystem can contain.
- sRebuildPriority
-
The rebuild priority of the LUNs that belong to the subsystem. This value can range from 0 (lowest priority) through 15 (highest priority).
Remarks
The IVdsSubSystem::GetProperties method returns this structure to report the properties of a subsystem object.
Requirements
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Minimum supported client | Windows Vista |
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Minimum supported server | Windows Server 2003 |
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Header |
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See also
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Build date: 3/6/2012
