Die-level monitoring in a storage cluster
First Claim
1. A plurality of storage nodes, comprising:
- each of the plurality of storage nodes having non-volatile solid-state storage; and
each non-volatile solid-state storage having a controller configured to track bit errors of solid-state memory in the non-volatile solid-state storage, wherein diagnostic information for each non-volatile solid-state storage is based at least in part on the bit errors.
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Abstract
In some embodiments, a method for die-level monitoring is provided. The method includes distributing user data throughout a plurality of storage nodes through erasure coding, wherein the plurality of storage nodes are housed within a chassis that couples the storage nodes. Each of the storage nodes has a non-volatile solid-state storage with non-volatile memory and the user data is accessible via the erasure coding from a remainder of the storage nodes in event of two of the storage nodes being unreachable. The method includes producing diagnostic information that diagnoses the non-volatile memory on a basis of per package, per die, per plane, per block, or per page, the producing performed by each of the plurality of storage nodes. The method includes writing the diagnostic information to a memory in the storage cluster.
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Citations
12 Claims
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1. A plurality of storage nodes, comprising:
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each of the plurality of storage nodes having non-volatile solid-state storage; and each non-volatile solid-state storage having a controller configured to track bit errors of solid-state memory in the non-volatile solid-state storage, wherein diagnostic information for each non-volatile solid-state storage is based at least in part on the bit errors. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A storage cluster, comprising
a plurality of storage nodes within a chassis; each of the plurality of storage nodes having a controller with an error correction block, wherein diagnostic information is based on a result of feedback from the error correction block. - View Dependent Claims (8, 9, 10, 11, 12)
Specification