Systems, methods and apparatus for creating stable disk images
View Patent ↗A system and method of identifying methods of quiescing a storage object. Data is received identifying the storage object and a freeze list is generated. The freeze list includes one or more freeze methods appropriate for quiescing the storage object. Generating includes creating a hierarchy of logical storage objects below the identified storage object, associating quiesce characteristics with each logical storage object below the identified storage object and generating freeze vectors as a function of quiesce characteristics associated with each logical storage object below the identified storage object.
1. A method of identifying methods of quiescing a storage object, the method comprising:
using a computer to perform:
receiving data identifying the storage object,
generating a freeze list including one or more freeze methods appropriate for quiescing the storage object, wherein the generating includes creating a hierarchy of logical storage objects below the identified storage object,
associating one or more quiesce characteristics with each logical storage object of the logical storage objects below the identified storage object, and
generating one or more freeze vectors as a function of the one or more quiesce characteristics associated with said each logical storage object of the logical storage objects below the identified storage object, wherein the one or more freeze vectors include quiesce attributes and split attributes for an identified logical storage object that are conditional upon quiesce attributes and split attributes of said each logical storage object below the identified storage object, and wherein the generating the freeze list further includes assigning a measure of quiesce strength to each freeze method.
2. The method of claim 1 wherein the split attributes for the identified logical storage object include an indication of whether the identified logical storage object can be frozen using a mirror.
3. The method of claim 1 wherein the split attributes for the identified logical storage object include an indication of whether the identified logical storage object can be frozen using a snapshot.
4. A computer-readable storage media storing program instructions that are executed by a computing device, cause the computing device to perform a method comprising:
receiving data identifying a storage object,
generating a freeze list including one or more freeze methods appropriate for quiescing the storage object, wherein the generating includes creating a hierarchy of logical storage objects below the identified storage object,
associating one or more quiesce characteristics with each logical storage object of the logical storage objects below the identified storage object, and
generating one or more freeze vectors as a function of the one or more quiesce characteristics associated with said each logical storage object of the logical storage objects below the identified storage object, wherein the one or more freeze vectors include quiesce attributes and split attributes for an identified logical storage object that are conditional upon quiesce attributes and split attributes of said each logical storage object below the identified storage object, and wherein the generating the freeze list further includes assigning a measure of quiesce strength to each freeze method.
5. The computer-readable storage media of claim 4 wherein the split attributes for the identified logical storage object include an indication of whether the identified logical storage object can be frozen using a mirror.
6. The computer-readable storage media of claim 4 wherein the split attributes for the identified logical storage object include an indication of whether the identified logical storage object can be frozen using a snapshot.
7. A system for identifying methods of quiescing a storage object, the system comprising:
a computing device including a processor; and
a storage media storing program instructions that, if executed by the computing device, cause the computing device to perform a method comprising:
receiving data identifying the storage object,
generating a freeze list including one or more freeze methods appropriate for quiescing the storage object, wherein the generating includes creating a hierarchy of logical storage objects below the identified storage object,
associating one or more quiesce characteristics with each logical storage object of the logical storage objects below the identified storage object, and
generating one or more freeze vectors as a function of the one or more quiesce characteristics associated with said each logical storage object of the logical storage objects below the identified storage object, wherein the one or more freeze vectors include quiesce attributes and split attributes for an identified logical storage object that are conditional upon quiesce attributes and split attributes of said each logical storage object below the identified storage object, and wherein the generating the freeze list further includes assigning a measure of quiesce strength to each freeze method.
8. The system of claim 7 wherein the split attributes for the identified logical storage object include an indication of whether the identified logical storage object can be frozen using a mirror.
9. The system of claim 7 wherein the split attributes for the identified logical storage object include an indication of whether the identified logical storage object can be frozen using a snapshot.