Patent application number | Description | Published |
20080301365 | Storage unit and circuit for shaping communication signal - The present invention relates to a storage unit comprising: a channel control portion for receiving a data input/output request; a cache memory for storing data; a disk control portion for performing input/output processing on data in accordance with the data input/output request; and a plurality of disk drives for storing data, wherein at least two of the disk drives input data to and output it from the disk control portion at different communication speeds. Further, the storage unit has a plurality of communication paths provided to connect at least one of the disk drives in such a manner as to constitute a loop defined by the FC-AL fiber channel standards, so that the communication speeds can be set differently for these different communication paths. | 12-04-2008 |
20090063901 | Storage system that finds occurrence of power source failure - One or more switches are interposed between a controller portion and a storage device. When transmission of a command to a certain storage device fails, a command is transmitted starting from an upstream side to a downstream side of a path between the controller portion and the switch to which the certain storage device is connected, and when command transmission fails while transmitting a command from a k | 03-05-2009 |
20090106584 | STORAGE APPARATUS AND METHOD FOR CONTROLLING THE SAME - Provided is a storage apparatus that can dramatically shorten the time for recovery from a fault in a storage device. In a storage apparatus provided with one or more storage devices and a method for controlling the storage apparatus, when a fault occurs in the storage device, whether or not the fault is a predetermined specific fault is judged, and the storage device is rebooted if the fault is the predetermined specific fault. As a result, recovery from the fault can be achieved in a dramatically shorter amount of time than the time required for replacement of the storage device. Accordingly, the time for recovery from the fault in the storage device can be shortened dramatically. | 04-23-2009 |
20090204743 | STORAGE SUBSYSTEM AND CONTROL METHOD THEREFOF - Provided is a storage subsystem capable of inhibiting the deterioration in system performance to a minimum while improving reliability and availability. This storage subsystem includes a first controller for controlling multiple drive units connected via multiple first switch devices, and a second controller for controlling the multiple drive units connected via multiple second switch devices associated with the multiple first switch devices. This storage subsystem also includes a connection path that mutually connects the multiple first switch devices and the corresponding multiple second switch devices. When the storage [sub]system detects the occurrence of a failure, it identifies the fault site in the connection path, and changes the connection configuration of the switch device so as to circumvent the fault site. | 08-13-2009 |
20100033020 | POWER DEVICE AND POWER DEVICE POWER SUPPLY METHOD - A power device of the present invention makes a plurality of DC/DC converters redundant, and supplies power individually to a plurality of disk drives. Each first DC/DC converter is respectively made correspondent to a subgroup. One first DC/DC converter is connected to the disk drives respectively inside one subgroup, and the other first DC/DC converter is connected to the disk drives inside the other subgroup. A second DC/DC converter is made correspondent to all of the subgroups. Second DC/DC converters respectively supply direct-current power to any one disk drive of the disk drives in the subgroups. | 02-11-2010 |
20100325484 | STORAGE SYSTEM THAT FINDS OCCURRENCE OF POWER SOURCE FAILURE - One or more switches are interposed between a controller portion and a storage device. When transmission of a command to a certain storage device fails, a command is transmitted starting from an upstream side to a downstream side of a path between the controller portion and the switch to which the certain storage device is connected, and when command transmission fails while transmitting a command from a k | 12-23-2010 |
20110252195 | DISK ARRAY SYSTEM AND HARD DISK DRIVE EXPANSION METHOD THEREOF - Even if an arbitrary hard disk drive is added, the hard disk drive is operated in a specific operation mode suited for that hard disk drive. As triggered by attachment of a hard disk drive to a disk adapter, a processor operates the hard disk drive in a predetermined operation mode based on predetermined parameter information that has been prepared in advance. The hard disk drive stores, in advance, particular parameter information including information about the specific operation mode suited for operation. The processor reads the particular parameter information from the hard disk drive in the predetermined operation mode and operates the hard disk drive in the specific operation mode based on the particular parameter information. | 10-13-2011 |
20110320886 | STORAGE SYSTEM THAT FINDS OCCURRENCE OF POWER SOURCE FAILURE - One or more switches are interposed between a controller portion and a storage device. When transmission of a command to a certain storage device fails, a command is transmitted starting from an upstream side to a downstream side of a path between the controller portion and the switch to which the certain storage device is connected, and when command transmission fails while transmitting a command from a k | 12-29-2011 |
20130047030 | STORAGE APPARATUS AND POWER SUPPLY METHOD - The supply of power to a storage apparatus can be made redundant by means of power inputs from two types of power supply, namely an AC power supply and a DC power supply. | 02-21-2013 |
20130132666 | DISK ARRAY SYSTEM AND HARD DISK DRIVE EXPANSION METHOD THEREOF - Even if an arbitrary hard disk drive is added, the hard disk drive is operated in a specific operation mode suited for that hard disk drive. | 05-23-2013 |
20130212302 | DISK ARRAY APPARATUS - The difference in the form of connectors connected to data transmission cables is absorbed. A disk array apparatus has a plurality of disk units for executing data input/output processing on storage devices in accordance with a control command from a disk controller; wherein an interface substrate is placed at each disk unit and the interface substrate has a plurality of cable connection connectors to be connected to cables; and a first cable connection connector is connected to a local disk unit, where the relevant connector is placed, via a first data transmission cable; and a second cable connection connector is connected to an adjacent disk unit, which is located adjacent to the local disk unit, or an interface substrate which is placed in the adjacent disk unit, via a second data transmission cable; and these cable connection connectors are configured as connectors in mutually different forms. | 08-15-2013 |
20130212429 | STORAGE DEVICE REPLACEMENT METHOD, AND STORAGE SUB-SYSTEM ADOPTING STORAGE DEVICE REPLACEMENT METHOD - Based on information security rules, it is not possible to take out a failure HDD to the exterior of a facility for replacement without erasing data therefrom. According to the present storage sub-system, a slot in which failure has occurred and a slot not registered to a configuration information of a storage sub-system are used to simultaneously perform correction copy to a spare HDD and data erase of the failure HDD in parallel, so as to enable the failure HDD to be brought out to the exterior of the storage facility. Further, time required from when failure has occurred to the HDD to data recovery is shortened, so as to prevent deteriorated redundancy that may be caused by another failure occurring during data recovery and to reduce the risk of data loss. | 08-15-2013 |
20140025886 | DISK ARRAY SYSTEM AND CONNECTION METHOD - According to the conventional art disk array system, when a drive box of a first chassis is blocked, all the drive boxes of a second chassis connected subsequently therefrom will be blocked, and the data in the drive boxes arranged subsequently therefrom cannot be recovered based on the RAID configuration. Even if the data could be recovered based on RAID configuration, it is necessary to perform the recovery process based on RAID in all the subsequently arranged drive boxes, according to which the performance is deteriorated. The present system stores a first drive box in a first chassis out of a plurality of chassis, and a second drive box and a third drive box are stored in a second chassis. One of a plurality of expander controllers within the first drive box is connected to an expander controller in the second drive box, and the other expander controller is connected to an expander controller in the third drive box. | 01-23-2014 |