ONLINE DISK REPLACEMENT/REMOVAL
First Claim
1. A computing device comprising:
- an interface configured to interface and communicate with a dispersed storage network (DSN);
memory that stores operational instructions; and
a processing module operably coupled to the interface and to the memory, wherein the processing module, when operable within the computing device based on the operational instructions, is configured to;
detect a failed memory device of a storage unit (SU) of a plurality of SUs that distributedly stores a set of encoded data slices (EDSs), wherein a data object is segmented into a plurality of data segments, wherein a data segment of the plurality of data segments is dispersed error encoded in accordance with dispersed error encoding parameters to produce the set of EDSs, wherein a decode threshold number of EDSs are needed to recover the data segment;
determine a DSN address range associated with at least some EDSs of the set of EDSs associated with the data object that are stored within the failed memory device of the SU of the plurality of SUs; and
transmit the DSN address range to another computing device within the DSN to instruct restriction within the DSN of a memory access request associated with the at least some EDSs associated with the data object that are stored within the failed memory device of the SU of the plurality of SUs.
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Accused Products
Abstract
A computing device includes an interface configured to interface and communicate with a dispersed storage network (DSN), a memory that stores operational instructions, and a processing module operably coupled to the interface and memory such that the processing module, when operable within the computing device based on the operational instructions, is configured to perform various operations. The computing device detects a failed memory device (e.g., of a storage unit (SU) that stores at least one encoded data slice (EDS). The computing device then determines a DSN address range associated with at least some EDSs associated with a data object stored within the failed memory device and transmits the DSN address range to another computing device within the DSN to instruct restriction within the DSN of a memory access request for an EDSs associated with the data object that is stored within the failed memory device.
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Citations
20 Claims
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1. A computing device comprising:
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an interface configured to interface and communicate with a dispersed storage network (DSN); memory that stores operational instructions; and a processing module operably coupled to the interface and to the memory, wherein the processing module, when operable within the computing device based on the operational instructions, is configured to; detect a failed memory device of a storage unit (SU) of a plurality of SUs that distributedly stores a set of encoded data slices (EDSs), wherein a data object is segmented into a plurality of data segments, wherein a data segment of the plurality of data segments is dispersed error encoded in accordance with dispersed error encoding parameters to produce the set of EDSs, wherein a decode threshold number of EDSs are needed to recover the data segment; determine a DSN address range associated with at least some EDSs of the set of EDSs associated with the data object that are stored within the failed memory device of the SU of the plurality of SUs; and transmit the DSN address range to another computing device within the DSN to instruct restriction within the DSN of a memory access request associated with the at least some EDSs associated with the data object that are stored within the failed memory device of the SU of the plurality of SUs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A computing device comprising:
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an interface configured to interface and communicate with a dispersed storage network (DSN); memory that stores operational instructions; and a processing module operably coupled to the interface and to the memory, wherein the processing module, when operable within the computing device based on the operational instructions, is configured to; receive a memory access request for a data object stored within the DSN, wherein the data object is segmented into a plurality of data segments, wherein a data segment of the plurality of data segments is dispersed error encoded in accordance with dispersed error encoding parameters to produce a set of EDSs, wherein the set of EDSs are distributedly stored among a plurality of storage units (SUs), wherein a decode threshold number of EDSs are needed to recover the data segment; determine a DSN address range associated with the set of EDSs associated with the data object; determine a failed memory device of a storage unit (SU) of the plurality of SUs that stores at least one EDS of the set of EDSs within the DSN address range; determine whether at least the decode threshold number of EDSs are stored within the failed memory device of the SU of the plurality of SUs; when it is determined that the at least the decode threshold number of EDSs are stored within the memory device of the SU of the plurality of SUs, reject the memory access request for the data object stored within the DSN; and when it is determined that the at least the decode threshold number the at least the decode threshold number of EDSs are not stored within the failed memory device of the SU of the plurality of SUs, service the memory access request for the data object stored within the DSN. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method for execution by a computing device, the method comprising:
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detecting, within a dispersed storage network (DSN), a failed memory device of a storage unit (SU) of a plurality of SUs that distributedly stores a set of encoded data slices (EDSs), wherein a data object is segmented into a plurality of data segments, wherein a data segment of the plurality of data segments is dispersed error encoded in accordance with dispersed error encoding parameters to produce the set of EDSs, wherein a decode threshold number of EDSs are needed to recover the data segment; determining a DSN address range associated with at least some EDSs of the set of EDSs associated with the data object that are stored within the failed memory device of the SU of the plurality of SUs; and transmitting, via an interface configured to interface and communicate with the DSN, the DSN address range to another computing device within the DSN to instruct restriction within the DSN of a memory access request associated with the at least some EDSs associated with the data object that are stored within the failed memory device of the SU of the plurality of SUs. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification