摘要:
There is provided a system and method of configuring a storage array. An exemplary method includes generating information within a storage array controller, the information corresponding to a menu of user options. The exemplary method also includes sending the information from the array controller to a user interface module. The exemplary method also includes sending user instructions comprising a selected menu option from the user interface module to the array controller. The exemplary method also includes executing a configuration task associated with the selected menu option.
摘要:
A computing apparatus comprises a persistent storage comprising a system code that implements Redundant Array of Independent Disks (RAID) protection on a boot volume.
摘要:
There is provided a system and method of configuring a storage array. An exemplary method includes generating information within a storage array controller, the information corresponding to a menu of user options. The exemplary method also includes sending the information from the array controller to a user interface module. The exemplary method also includes sending user instructions comprising a selected menu option from the user interface module to the array controller. The exemplary method also includes executing a configuration task associated with the selected menu option.
摘要:
A single read request to a memory controller generates multiple read actions along with XOR/DATUM manipulation of that read data. Fewer memory transfers are required to accomplish a RAID5/DATUM parity update. This allows for higher system performance when memory bandwidth is the limiting system component. In implementation, a read buffer with XOR capability is tightly coupled to a memory controller. New parity does not need to be stored in the controller's memory. Instead, a memory read initiates multiple reads from memory based on an address decode. The data from the reads are multiplied and XOR'd before being returned to the requestor. In the case of a PCI-X requestor, this occurs as a split-completion.
摘要:
A request is output to a first queue of a storage device. A head flag of the request is set based on whether the request is a read type request and a comparison of a percentage of requests queued at the first queue that are read type requests to a threshold percentage. The storage device is to store the request at a head of the first queue if the head flag of the request is set.
摘要:
A computing apparatus comprises a system Read-Only Memory (ROM) comprising a system Basic Integrated Operating System (BIOS) that implements Redundant Array of Independent Disks (RAID) protection on a boot volume.
摘要:
Boot acceleration for computer systems is disclosed. In an exemplary embodiment, a method of boot acceleration for a computer system may comprise monitoring data requests during a boot procedure. The method may also comprise pre-fetching data from a storage device during a subsequent boot procedure based at least in part on the monitored data requests. The method may also comprise accessing the pre-fetched data from a cache to accelerate the subsequent boot procedure.
摘要:
Storage controllers and related methods of operation are described. One method tracks storage access operations to a logical disk. The method persistently identifies storage blocks that have been accessed. Responsive to the identifying, the method selectively skips subsequent operations to storage blocks that have not been accessed.
摘要:
A system for performing on-line reconfiguration of a disk array in which a source logical volume is reconfigured to a destination logical volume. Disk array configuration is invoked if a new physical drive is inserted, or a drive is removed. Reconfiguration can also be performed if the user desires to change the configuration of a particular logical volume, such as its stripe size. The disk array reconfiguration is run as a background task by firmware on a disk controller board. The reconfigure task first moves data from the source logical volume to a posting memory such as RAM memory. The reconfigure task operates one stripe at a time, with the stripe size being that of the destination logical volume. Once a stripe of data is moved into the posting memory, it is written back to corresponding locations in the destination logical volume. The reconfigure task continues until all data in the source logical volume have been moved into the destination logical volume. While the reconfigure task is working on a particular logical volume, data remains accessible to host write and read requests.
摘要:
A new and improved apparatus and method for rebuilding a replacement disk of a fault tolerant, mass storage drive array subsystem of a computer system. The method calls for a microprocessor to check a stripe for consistency. If the stripe is inconsistent, the microprocessor rebuilds a predetermined number of stripes. If the checked stripe is inconsistent, then the microprocessor checks a next stripe and repeats the above-described process. Because the drive array subsystem receives both system requests and rebuild requests, the present invention allows a user to select the drive array subsystem's priority in processing system requests versus rebuild requests, thereby allowing greater system access to the drive array subsystem during peak times of system requests.