Hewlett-packard Development Company, L.p.

Hewlett Packard Enterprise Development LP

Stanley Smith Feather, Jr

Curtis C Ballard

Jeffrey DiCorpo

Steven Maddocks

Jeffery DiCorpo

Shiraz Billimoria

Colette Toone Howe

John G McCarthy

Douglas Westley Rauenzahn

Kurt William Heberlein

Example implementations may relate to a host and a storage system that communicate by a block storage protocol. For example, the host may embed host credentials in a data packet of the block storage protocol, and the data packet of host credentials may be cryptographically signed by a certificate authority trusted by a user of the host to generate a signed credential packet. The signed credential packet may be transmitted in a data path between the host and the storage system. The storage system may validate the signed credential packet using enrollment credentials and a certificate authority certificate and may authenticate the host to a logical unit.

Host-storage authentication

A cartridge storage system has at least one peripheral device that controls access to a system component of the storage system and memory storing configuration data indicative of a configuration of the peripheral device. The system further has logic that automatically configures a replacement peripheral device of the at least one peripheral device based upon the stored configuration data.

System and method for storing configuration data of a storage automation device

In one embodiment, a method of diagnosing an error in a cartridge drive, comprises detecting an occurrence of a defined event in a cartridge drive, in response to the defined event, initiating an analysis routine of at least one event log from the cartridge drive, and invoking an intervention routine when the analysis indicates that the defined event represents a failure threat.

Cartridge drive diagnostic tools

In one embodiment, a cartridge library comprises a library controller comprising a first processor module and a memory medium communicatively connected to the processor module, and a cartridge drive controller comprising a second processor module and a memory medium communicatively connected to the processor module. The cartridge drive controller comprises logic instructions stored on a computer readable medium which, when executed, cause the first processor module to receive, from a management component coupled to the cartridge library, at least one access control parameter, wherein the access control parameter identifies at least one of a user, a server, a command, or a time, record, in a memory medium coupled to the cartridge library, the at least one access control parameter; receive a request for at least one resource of the cartridge library; and use the access control parameter in determining whether to grant access to the at least one resource of the cartridge library.

Access control management

A method includes receiving a first command for accessing a tape storage system, the first command containing an indicator that the first command was issued as a result of a failover from a first path to the storage system to a second path to the tape storage system. The method further includes determining whether the first command is a repeat of a second command already received by the tape storage system. The first command is processed based on determining whether the first command is a repeat of the second command.

Method and system for a failover procedure with a storage system

A filter comprises a first device, a second device, a dynamic filter, and a device monitor. The dynamic filter is coupled to the first device and the second device, and selectively directs commands to the first device and to the second device based on dynamic status of the first device. The device monitor is coupled to the dynamic filter and to the first device and capable of determining the first device dynamic status.

Dynamic command filter

An apparatus capable of determining state of a device comprises a controller and a monitor executable on the controller. The monitor is capable of passively monitoring traffic between an initiator and the device, determining when the passively monitored traffic is insufficient for identifying state of the device, and actively issuing supplemental commands to the device to refresh device information when passively monitored traffic is insufficient. The monitor can also determine device state from the device information.

Monitor for obtaining device state by intelligent sampling

An apparatus comprises a data path capable of coupling a physical device to a plurality of initiators. An interface is coupled to the data path and forms a command pathway between the plurality of initiators and the physical device. The controller is coupled to the data path and coupled to the interface. A controller comprises an executable process that creates a virtual device object that resolves conflicting concurrent attempts to access the physical device by a plurality of initiators. The virtual device object is capable of protecting state of the physical device during successive data transfer and media movement operations by emulating responses of the physical device and redirecting access to the physical device when the physical device becomes available.

Growing community of inventors

Longmont, CO, United States of America

Stanley Smith Feather, Jr