Information storage apparatus including an uniterruptible power supply (UPS) and an interlock control method of the same, comprising

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6389546
SERIAL NO

09287376

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In an information storage apparatus including an uninterruptible power supply (UPS), a sequence of operation from when a power failure occurs to when power of the UPS is turned off is automatically accomplished completely without human power to thereby guarantee user data. For this purpose, the apparatus includes a disk array, a host, and a plurality of UPSs to supply power to the disk array and the host. The UPSs monitor a state change of power on a host side by a host ac control line or an SCSI unit to sequentially execute processing in an order of processing of host termination, processing for cache flush of the disk array, processing of host UPS termination, processing of disk array termination, and processing for termination of disk array UPS. Between the UPSs and the Host and between the UPSs and the disk array, there is provided an interlocking control signal to monitor current states thereof so as to control the respective operations. Resultantly, the host UPS and the disk array UPS have the same configuration for wider usability.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HITACHI, LTD.TOKYO13769

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kano, Azuma Odawara, JP 39 388
Sato, Masahiko Odawara, JP 218 3437

Cited Art Landscape

Patent Info (Count) # Cites Year
 
AIWA CO., LTD. (1)
* 5889933 Adaptive power failure recovery 38 1997
 
FUJITSU LIMITED (1)
* 6041414 Uninterruptible power supply apparatus which supplies guaranteed power to electronic apparatuses in a system 23 1997
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2002/0087,899 Information storage apparatus including an uninterruptible power supply (UPS) and an interlock control method of the same 1 2002
 
DELL GLOBAL B.V. - SINGAPORE BRANCH (1)
6990603 Method and apparatus for securing volatile data in power failure in systems having redundancy 15 2002
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
* 6728601 Multiple host power control system and method 14 2001
* 7275182 Method and apparatus for correlating UPS capacity to system power requirements 6 2004
 
POWERWARE CORPORATION (3)
* 2004/0148,547 UPS-based file data storage apparatus and computer program products 4 2003
* 2005/0028,029 Methods, apparatus, and computer program products for selectively backing up files to a robust storage medium according to program associations 3 2004
* 2005/0021,570 Methods, apparatus, and computer program products for selectively backing up versions of files to a robust storage medium according to file version differences 9 2004
 
Micro Memory LLC (2)
* 7293197 Non-volatile memory with network fail-over 3 2004
* 2005/0039,090 Non-volatile memory with network fail-over 6 2004
 
GOOGLE TECHNOLOGY HOLDINGS LLC (3)
7032118 Control method of storage system, storage system, and storage apparatus 4 2003
7246248 Control method of storage system, storage system, and storage apparatus 1 2006
7870402 Control method of storage system, storage system, and storage apparatus 0 2007
 
HITACHI, LTD. (9)
* 6757835 Information storage apparatus including an uninterruptible power supply (UPS) and an interlock control method of the same 12 2002
7051216 Disk array device and method of supplying power to disk array device 14 2003
* 2004/0068,670 Disk array device and method of supplying power to disk array device 5 2003
7007185 Information storage apparatus including an uninterruptible power supply (UPS) and an interlock control method of the same 1 2004
7131014 Disk array device and method of supplying power to disk array device 1 2005
* 2005/0216,777 Disk array device and method of supplying power to disk array device 1 2005
7284140 Disk array device and method of supplying power to disk array device 7 2006
7681061 Disk array device and method of supplying power to disk array device 3 2007
* 2007/0255,968 Disk array device and method of supplying power to disk array device 6 2007
* Cited By Examiner