System and method for transferring data between different raid data storage types for current data and replay data
First Claim
1. A method for transferring data between data storage types of a RAID storage system comprising:
- providing an active volume of data storage space that accepts I/O; and
generating a read-only snapshot of the active volume;
wherein the active volume comprises a first type of RAID storage and the read-only snapshot comprises a second type of RAID storage.
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Accused Products
Abstract
The present disclosure relates to a data storage system including a RAID subsystem having a first and second type of RAID storage. A virtual volume configured to accept I/O is stored on the first type of RAID storage, and snapshots of the virtual volume are stored on the second type of RAID storage. A method of the present disclosure includes providing an active volume that accepts I/O and generating read-only snapshots of the volume. In certain embodiments, the active volume is converted to a snapshot. The active volume includes a first type of RAID storage, and the snapshots include a second type of RAID storage. The first type of RAID storage has a lower write penalty than the second type of RAID storage. In typical embodiments, the first type of RAID storage includes RAID 10 storage and the second type of RAID storage includes RAID 5 and/or RAID 6 storage.
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Citations
18 Claims
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1. A method for transferring data between data storage types of a RAID storage system comprising:
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providing an active volume of data storage space that accepts I/O; and generating a read-only snapshot of the active volume; wherein the active volume comprises a first type of RAID storage and the read-only snapshot comprises a second type of RAID storage. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of transferring data between data storage types of a RAID storage system comprising:
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providing an active volume comprising a first type of RAID storage, the active volume configured to accept I/O; and converting the active volume to a read-only Point-In-Time Copy of the active volume; wherein converting the active volume to a read-only Point-In-Time Copy comprises transferring the data from the first type of RAID storage to a second type of RAID storage. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A data storage system comprising:
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a RAID subsystem comprising a first and second type of RAID storage; a virtual volume configured to accept I/O, the virtual volume stored on the first type of RAID storage; and one or more read-only snapshots of the virtual volume stored on the second type of RAID storage. - View Dependent Claims (15, 16, 17, 18)
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Specification