Method and apparatus for virtual network attached storage...

Details Method and apparatus for virtual network attached storage... Method and apparatus for virtual network attached storage...

2011-06-21

2011-06-21

Le, Dieu-Minh (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S003000

Reexamination Certificate

active

07966517

ABSTRACT:
A system and a method for causing migration of VNASs formed on NAS heads of one NAS system to other NAS heads on the same NAS system or on other NAS systems including independent storage systems. A VNAS management program on each NAS head includes a VNAS assign program, a failure detect program and a load balance program, that all include a capability for causing remote migration of VNASs on the NAS head in case a VNAS fails, the NAS head fails, or the entire NAS system fails. The VNAS management capability may cause VNAS migration if a NAS head is over loaded or if it is lightly loaded and may be powered down after its VNASs have been transferred.

REFERENCES:
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patent: 2007/0073782 (2007-03-01), Nakatani et al.
patent: 2007/0150690 (2007-06-01), Chen et al.
patent: 2008/0010485 (2008-01-01), Shitomi et al.

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