摘要:
A computer system according to the invention includes a posted write cache for writing to a mass storage subsystem. Upon restart, the computer system determines whether the mass storage subsystem has been interveningly written to by another computer system since the computer system last wrote to that mass storage subsystem. If so, the computer system flushes its posted write cache, thus prevent invalid data from being written to the mass storage subsystem.
摘要:
A printing ink fountain having a disposable liner made of paperboard or the like for use with flexographic printing presses. The liner, which is supported in a liner retainer, is generally upwardly open to receive therein a metering roller of the printing press. The liner includes a flexible drain hose attached to the bottom thereof for draining ink from the liner.
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 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:
A computer system that cleans buffer memory as a background task. The system includes a transfer buffer, a memory that stores an index or table indicating free and non-zero data sectors within the transfer buffer, and processing logic that uses the transfer buffer for data transfer operations, and when otherwise idle, that scans the index table for contiguous sections of free and non-zero data sectors of the transfer buffer and that zeroes at least one of the contiguous sections. The system allocates buffer memory and performs parallel logic operations into the buffer, such as XOR logic operations to generate new parity data. The buffer must first be zeroed or cleaned prior to the parallel operations. With the background task, the system is more likely to find an appropriate size buffer of free and zeroed data sectors in the transfer buffer to perform the parallel logic operations. The background task significantly reduces or relieves the system from having to issue CDB-based memory commands to zero or clean an allocated buffer during disk I/O operations.
摘要:
A method and apparatus which indicates the physical location of one or more peripheral devices. A system operator uses an input device to select an icon that is displayed on a display device. The icon represents a single peripheral device or a group of peripheral devices among a plurality of peripheral devices. For example, an icon may represent a disk drive, a group of disk drives disposed within a storage unit, an array of disk drives, an array of disk drives disposed within one or more storage units, etc. After the system operator selects the icon, an indicator light associated with each of the one or more peripheral devices represented by the icon illuminates to identify the physical location of the selected peripheral device or devices. Other peripheral devices are contemplated, such as a bank of modems, floppy drives, CD-ROM drives, etc.
摘要:
In a computer system there is a storage subsystem and an array controller circuit controlling an array of hard drives in the storage subsystem. Upon powering the storage subsystem, the array controller automatically determines whether the hard drives have been moved to new bay locations in the storage subsystem and whether a new complete logical drive, consisting of at least one hard drive, has been added to the storage subsystem. Upon discovery of any drive movement or logical drive unit addition, the array controller automatically reconfigures each hard drive by at least updating the configuration information in accordance with the changes.
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 consistent, 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.
摘要:
A computer system according to the invention includes a posted write cache for writing to a mass storage subsystem. Upon restart, the computer system determines whether the mass storage subsystem has been interveningly written to by another computer system since the computer system last wrote to that mass storage subsystem. If so, the computer system flushes its posted write cache, thus prevent invalid data from being written to the mass storage subsystem.