Virtual tape device and tape mount control method

摘要

A virtual tape device includes a storage unit, an instruction unit, and a reading unit. The storage unit stores a plurality of logical volumes. The instruction unit receives a request for mounting a specified logical volume from an information processing apparatus. The instruction unit issues a mount instruction to both a physical tape device communicated to the virtual tape device and a virtual device communicated to the virtual tape device when the specified logical volume is not stored in the storage unit. The mount instruction instructs to mount the specified logical volume. The reading unit reads data of the specified logical volume to the storage unit from a device which outputs a mount completion notification first among both of the devices which have received the mount instruction.

主权项

1. A virtual tape device, comprising:
a storage unit to store a plurality of logical volumes; an instruction unit to
receive a request for mounting a specified logical volume from an information processing apparatus, andissue, when the specified logical volume is not stored in the storage unit, a mount instruction to both a physical tape device which communicates with the virtual tape device and a virtual device which communicates with the virtual tape device, the mount instruction instructing to mount the specified logical volume; and a reading unit to
read data of the specified logical volume to the storage unit from a device which outputs a mount completion notification first among both of the devices which have been issued the mount instruction.