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Method for optimizing cleaning of maps in flashcopy cascades containing incremental maps
US8990529B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8990529-B2 |
| Application number | US-201414202373-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 10, 2014 |
| Priority date | Oct 8, 2008 |
| Publication date | Mar 24, 2015 |
| Grant date | Mar 24, 2015 |
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Abstract
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A method for optimizing cleaning of maps in storage cascades includes determining whether a target disk of a map contains data unavailable to a downstream disk from an upstream disk in a cascade and detect whether the downstream disk has a copy of the data. Additionally, the method includes copying the data from the target disk to the downstream disk, if the target disk of the map contains data unavailable to the downstream disk from the upstream disk and the downstream disk does not have the copy of the data. Furthermore, the method includes copying the data from the target disk to the downstream disk, if the target disk of the map does not contain data unavailable to the downstream disk from the upstream disk or the downstream disk does have the copy of the data. Moreover, the method includes removing the map from the cascade.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: determining whether a target volume contains data unavailable to a downstream volume from an upstream volume, wherein the target volume, the downstream volume, and the upstream volume comprise a cascade of volumes related by a plurality of data mappings; determining whether the downstream volume has a copy of the data; copy the data from the target volume to the downstream volume based on a determination that the target volume contai…
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- G06F11/1451Primary
Physics · mapped topic
- G06F3/065Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US8990529B2 cover?
- A method for optimizing cleaning of maps in storage cascades includes determining whether a target disk of a map contains data unavailable to a downstream disk from an upstream disk in a cascade and detect whether the downstream disk has a copy of the data. Additionally, the method includes copying the data from the target disk to the downstream disk, if the target disk of the map contains data…
- Who is the assignee on this patent?
- IBM
- What technology area does this patent fall under?
- Primary CPC classification G06F11/1451. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).