摘要:
An archiving system including one or more removable disk drives embedded in removable disk cartridges, referred to simply as removable disk drives. The removable disk drives allow for expandability and replacement such that the archiving system need not be duplicated to add new or more storage capacity. In embodiments, the removable disk drives store metadata that contain information about the data stored on the removable disk drive. The metadata allows the system to retrieve the correct data from the random access memory and establishes controls on the data stored on the removable disk drive. In embodiments, the metadata is stored in two locations, such that, if the metadata in one location is corrupted, the second copy of the metadata may be retrieved.
摘要:
Systems and methods for storing and accessing data on a removable media having a changeable data set and an immutable data set. In one embodiment, a system can comprise a removable media storage system adapted to determine whether a host system running one or more applications is configured to enforce Write Once Read Many (WORM) policies. The host system can be communicatively coupled with the removable media storage system and configured to execute instructions causing the host system to determine whether to allow or deny a request to access data on the removable media. The host system can use rules to determine if an access request is to access data of a changeable data set or a immutable data set. If the request is to access data of the changeable data set, access is allowed. If the request is to access data of the immutable data set, reads are allowed, as well as writes of new data. Access requests to rename, delete, and/or write to existing data of the immutable data set are denied.
摘要:
Data are stored on a random-access storage medium. A user set of data is received. The user set of data is mapped to multiple frames. For each frame, error-correction bytes are generated over the data mapped to that frame. In addition, the data mapped to that frame are written to a number of data blocks of that frame and the error-correction bytes generated for that frame are written to a number of error-correction blocks of that frame. At least one of the number of error-correction blocks and the number of data blocks differs among at least some of the frames.
摘要:
Embodiments of archival storage system are disclosed. The archival storage system includes one or more removable disk drives that provide random access and are readily expandable. One or more application servers can store archival data to the one or more removable disk drives. Further, the archival storage system provides an audit trail that stores information about actions taken on the archival data. The audit trail data providing a list of the actions and information about the actions that can be used to determine changes to the archival data.
摘要:
According to the invention, an authorization system for authorizing access to a data cartridge is disclosed. The authorization system includes a code, a data cartridge interface, a fingerprint processor, a password generator, and an authorization engine. The code is obtained from outside the data cartridge. The data cartridge interface is used to read data from the data cartridge, where the data includes first information and a fingerprint. The fingerprint generator generates second information using at least the code. The password generator unlocks the data cartridge using the code and the data. The authorizing engine is coupled to at least one of the password generator or the fingerprint processor. At least some of the data or the second information is compared to authorize the data cartridge.
摘要:
A method for electronically providing identification of a removable data cartridge is disclosed. In one step, an identifier is programmed into the removable data cartridge. A command is received to provide a machine-readable marking from the removable data cartridge. An identifier is read from within the removable data cartridge. The machine-readable marking is determined using the identifier. Responding to the command with a response, where the response provides the machine-readable marking.
摘要:
A data storage system for removably storing information is disclosed. The data storage system includes a cartridge receptacle adapted to electrically and mechanically engage a removable data cartridge. The cartridge receptacle includes a second electrical connector and a conductive member. The second electrical connector is adapted to electrically engage a first electrical connector of the removable data cartridge. The conductive member is configured to engage a resistive portion of the removable data cartridge before the first and second electrical connectors engage. The conductive member is coupled to a ground of the cartridge receptacle.
摘要:
Embodiments presented herein provide a removable disk library system. The removable disk library system, in embodiments, comprises an array of removable disk drive bays and a movable connector system. Each removable disk drive bay can hold a removable disk drive cartridge. The movable connector system can be positioned behind the array of removable disk drive bays where the movable connector system can access the connector of the removable disk drive cartridges. In embodiments, the movable connector system includes a movable connector assembly that can automatically connect to the connector at the rear of the removable disk drive.
摘要:
According to the invention, an electronic data storage cartridge for removable coupling to a computing system is disclosed. The electronic data storage cartridge includes a cartridge body, a connector, an optical waveguide, a hard disk drive, and a mechanical write-protect switch that prevents modification of information on the hard disk drive when active. The cartridge body includes at least two outer surfaces. The connector can be used for removable coupling to the computing system, where the connector couples information outside the cartridge body. The optical waveguide is configured to couple light between the two outer surfaces. The hard drive is coupled to the connector.
摘要:
Embodiments provide systems and methods for maintaining immutable data in an archiving system using random access memory. To ensure data is immutable, novel pointers are maintained in the hardware/firmware of the drive ports and on the removable disk drives. For example, a hardware/firmware in a modular drive bay maintains a pointer to a memory address in the removable disk drive memory that cannot write to a memory block that precedes the pointer. Data may only be stored after the pointer in the removable disk drive. As such, once data is written to the removable disk drive, the data cannot be overwritten although the removable disk drive employs random access memory.