Selection of an active accessor in a multi-accessor automated da

Details Selection of an active accessor in a multi-accessor automated da Selection of an active accessor in a multi-accessor automated da

1997-10-30

1999-04-13

Dinh, Tan

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 36, G11B 1722

Patent

active

058944613

ABSTRACT:
An automated data storage library for storing and accessing a plurality of data storage media stored in a plurality of storage slots. A plurality of accessors access the data storage media between the storage slots and data recording device(s), an operator interface allows an operator to designate one of the accessors as active, and a library manager is interconnected with the accessors and with the operator interface to set operation modes of the accessors. The library manager sets the operation mode of one of the accessors to the active mode (A) in an initial decision, first (1), based on the relative conditions of the accessors, the conditions having three levels (a) fully available, (b) degraded, and (c) not available, and, if all the accessors are in the same level of condition, second (2), an arbitrarily selected one of the accessors, and (B) in an override decision, based on the active accessor if designated at the operator interface, or, if not designated, on the one of the accessors last in the active mode.

REFERENCES:
patent: 5450385 (1995-09-01), Ellis et al.
patent: 5471445 (1995-11-01), Emberty et al.
patent: 5513156 (1996-04-01), Hanaoka et al.
patent: 5646918 (1997-07-01), Dimitri et al.
patent: 5703843 (1997-12-01), Katsuyama et al.
patent: 5761161 (1998-06-01), Gallo et al.
`Error-Recovery Procedure for an Automated Library`, IBM Technical Disclosure Bulletin, vol. 19, No. 8, Jan. 1977, p. 2923.
`Control of Accessor Stalemate Contention`, IBM Technical Disclosure Bulletin, vol. 19, No. 8, Jan. 1977, p. 2921.

Affiliated with

Also associated with

Rating

Selection of an active accessor in a multi-accessor automated da does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Selection of an active accessor in a multi-accessor automated da, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selection of an active accessor in a multi-accessor automated da will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-226323