Controller and method for virtual LUN assignment for improved memory bank mapping
US8700961B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2011 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Apr 13, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A controller communicates with a plurality of multi-chip memory packages. Each multi-chip memory package comprises a plurality of memory dies, each having a respective plurality of memory blocks, some of which are good and some of which are bad. The controller determines a number of good blocks in each memory die. Based on the determined number of good blocks in each memory die, the controller selects a memory die from each of the multi-chip memory packages to access in parallel, wherein the selected memory dies are not necessarily all in the same relative position in each multi-chip package. The controller then creates a metablock from a set of good blocks from each of the selected memory dies, wherein a maximum number of metablocks that can be created across the selected memory dies is determined by a lowest number of good blocks in the selected memory dies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.