Managing storage stability
AssigneeEMC Corporation
InventorsMichael Manning, Ashok Tamilarasan
Life of this patent
Estimating the term…
Abstract
Storage stability is managed. It is detected that a disk drive is requesting to be taken offline. The disk drive is begun to be treated as being in a probation state. If within an acceptable period of time the disk drive requests to be put back online, treatment of the disk drive as being in a probation state is stopped, and only any portions of the disk drive data that were the subject of write requests involving the disk drive while the disk drive was being treated as being in a probation state are rebuilt.
Claims15
A method for use in managing storage stability, comprising:
- detecting that a disk drive is requesting to be taken offline;
- beginning treating the disk drive as being in a probation state;
- and
- if within an acceptable period of time the disk drive requests to be put back online,
- stopping treating the disk drive as being in a probation state, and
- rebuilding only any portions of the disk drive data that were the subject of write requests involving the disk drive while the disk drive was being treated as being in a probation state, further comprising:
- beginning treating the disk drive as being in a probation state only if the request falls within the number of such requests allowed within a tracking period.
A method for use in managing storage stability, comprising:
- detection that a disk drive is requesting to be taken offline;
- beginning treating the desk drive as being in a probation state;
- and
- if within an acceptable period of time the disk drive requests to be put back online,
- stopping treating the disk drive as being in a probation state, and
- rebuilding only any portions of the disk drive data that were the subject of write requests involving the disk drive while the disk drive was being treated as being in a probation state, further comprising:
- if the disk drive requests to be put back online after the acceptable period of time has expired, making the disk drive subject to possible rebuilding of the entire disk drive's data.
A method for use in managing storage stability, comprising:
- detecting that a disk drive is requesting to be taken offline;
- beginning treating the disk drive as being in a probation state;
- and
- if within an acceptable period of time the disk drive requests to be put back online,
- stopping treating the disk drive as being in probation state, and
- rebuilding only any portions of the disk drive data that were the subject of write requests involving the disk drive while the disk was being treated as being in a probation state, further comprising:
- if the request does not fall within the number of such requests allowed within a tracking period, making the disk drive inaccessible.
Dependencies are inferred from the claim text.