| US 7,549,002 B2 | ||
| Enclosure numbering in RAID data storage systems | ||
| Morrie Gasser, Hopkinton, Mass. (US); and Brian Parry, Holden, Mass. (US) | ||
| Assigned to EMC Corporation, Hopkinton, Mass. (US) | ||
| Filed on Sep. 29, 2005, as Appl. No. 11/239,568. | ||
| Prior Publication US 2007/0073968 A1, Mar. 29, 2007 | ||
| Int. Cl. G06F 13/12 (2006.01) | ||
| U.S. Cl. 710—74 [710/26; 711/114; 340/524] | 19 Claims |
| 1. A method for use in enclosure numbering in redundant array of independent disk (RAID) data storage systems, the method
comprising:
creating a signature for an enclosure;
writing the signature to a board and a drive in the enclosure;
storing the signature in a database to indicate that the enclosure belongs to the redundant array;
if first, second, and third boards in the enclosure indicates a first enclosure number, indicating that the enclosure has
the first enclosure number;
if at least the first and second boards indicate the first enclosure number, indicating that the enclosure has the first enclosure
number; and
if the first board does not indicate any enclosure number, indicating that the enclosure's enclosure number is unknown.
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