摘要:
One or more master CHN 21AM and one or more back-up CHN 21AC are provided. In each of the one or more back-up CHNs 21AC, the I/O processor 504 is in a power on state, and the NAS processor is in a power off state. The I/O processor 504 accesses a shared memory 25 periodically, and if the fact that a problem has occurred in any master CHN 21AM has been written to the shared memory 25, then the power supply of the NAS processor 506 is turned on, and processing is carried out for switching the back-up CHN 21AC in which the I/O processor 504 is installed, to a master CHN 21 AM.
摘要:
A technique that can update the firmware with services for clients continued on a circuit board that comprises a control unit of a storage system is provided. A plurality of blade that comprise control unit have previous BIOS on flash memory. Clusters are formed including the blade which is subject to firmware update. At the time of updating the firmware, for the update candidate substrate, the processing unit including processing to move the service provided by OS of blade to be subject to firmware update processing to OS of other blade in the cluster as well as firmware update processing for updating previous BIOS of blade which no longer provides services by the use of the BIOS update program and new BIOS image.
摘要:
A destaging method is provided for destaging a storage apparatus system comprising a disk control apparatus that functions as a data storage unit and is provided with disk apparatuses and a first cache memory, and an information processing apparatus that is connected to the disk control apparatus and provided with a second cache memory. The method includes a first step, in which upon an interruption of the functions of the disk control apparatus as the storage unit for the information processing apparatus, the information processing apparatus transfers to the first cache memory data scheduled to be written onto the disk apparatuses and that is currently stored in the second cache memory, and a second step, in which the disk control apparatus manages data to be stored in the disk apparatuses by dividing the data into a plurality of management groups and, when all data that belong to one of the management groups remained in the second cache memory and scheduled to be written onto the disk apparatuses are ready in the first cache memory, beginning writing onto the disk apparatuses the data that belong to the one of the management groups remaining in the first cache memory are scheduled to be written.
摘要:
One or more master CHN 21AM and one or more back-up CHN 21AC are provided. In each of the one or more back-up CHNs 21AC, the I/O processor 504 is in a power on state, and the NAS processor is in a power off state. The I/O processor 504 accesses a shared memory 25 periodically, and if the fact that a problem has occurred in any master CHN 21AM has been written to the shared memory 25, then the power supply of the NAS processor 506 is turned on, and processing is carried out for switching the back-up CHN 21AC in which the I/O processor 504 is installed, to a master CHN 21 AM.
摘要:
A technique that can update the firmware with services for clients continued on a circuit board that comprises a control unit of a storage system is provided. A plurality of blade that comprise control unit have previous BIOS on flash memory. Clusters are formed including the blade which is subject to firmware update. At the time of updating the firmware, for the update candidate substrate, the processing unit including processing to move the service provided by OS of blade to be subject to firmware update processing to OS of other blade in the cluster as well as firmware update processing for updating previous BIOS of blade which no longer provides services by the use of the BIOS update program and new BIOS image.
摘要:
One or more master CHN 21AM and one or more back-up CHN 21AC are provided. In each of the one or more back-up CHNs 21AC, the I/O processor 504 is in a power on state, and the NAS processor is in a power off state. The I/O processor 504 accesses a shared memory 25 periodically, and if the fact that a problem has occurred in any master CHN 21AM has been written to the shared memory 25, then the power supply of the NAS processor 506 is turned on, and processing is carried out for switching the back-up CHN 21AC in which the I/O processor 504 is installed, to a master CHN 21AM.
摘要:
A storage device controlling apparatus including a channel controller having a circuit board on which a file access processing section and an I/O processor are formed, the file access processing section receiving requests to input and output data in files as units from an information processing apparatus via a network, the I/O processor outputting I/O requests corresponding to the requests to input and output data to a storage device, the apparatus comprising: an exclusive control section performing exclusive control of a file when the channel controller receives from the information processing apparatus the requests to input and output data of the file.
摘要:
In a storage device controlling apparatus which includes: a plurality of channel controllers having a circuit board on which are formed a file access processing section receiving from an information processing apparatus requests to input and output data in files as units via a network and an I/O processor outputting to a storage device I/O requests corresponding to the requests to input and output data; and a disk controller executing input and output of data into and from the storage device in response to the I/O requests sent from the I/O processors, at least one of the channel controllers receives data specifying an assignment of a logical volume to the channel controller, the data being sent from the information processing apparatus, and stores the received assignment.
摘要:
In a storage device controlling apparatus which includes: a plurality of channel controllers having a circuit board on which are formed a file access processing section receiving from an information processing apparatus requests to input and output data in files as units via a network and an I/O processor outputting to a storage device I/O requests corresponding to the requests to input and output data; and a disk controller executing input and output of data into and from the storage device in response to the I/O requests sent from the I/O processors, at least one of the channel controllers receives data specifying an assignment of a logical volume to the channel controller, the data being sent from the information processing apparatus, and stores the received assignment.
摘要:
In a storage device controlling apparatus which includes: a plurality of channel controllers having a circuit board on which are formed a file access processing section receiving from an information processing apparatus requests to input and output data in files as units via a network and an I/O processor outputting to a storage device I/O requests corresponding to the requests to input and output data; and a disk controller executing input and output of data into and from the storage device in response to the I/O requests sent from the I/O processors, at least one of the channel controllers receives data specifying an assignment of a logical volume to the channel controller, the data being sent from the information processing apparatus, and stores the received assignment.