JPS6421542A - Channel reset instruction generation control system in virtual computer system - Google Patents
Channel reset instruction generation control system in virtual computer systemInfo
- Publication number
- JPS6421542A JPS6421542A JP62177690A JP17769087A JPS6421542A JP S6421542 A JPS6421542 A JP S6421542A JP 62177690 A JP62177690 A JP 62177690A JP 17769087 A JP17769087 A JP 17769087A JP S6421542 A JPS6421542 A JP S6421542A
- Authority
- JP
- Japan
- Prior art keywords
- channel
- shared channel
- reset instruction
- error
- virtual computer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/48—Program initiating; Program switching, e.g. by interrupt
- G06F9/4806—Task transfer initiation or dispatching
- G06F9/4843—Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system
Landscapes
- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Debugging And Monitoring (AREA)
Abstract
PURPOSE:To execute restoration after previously executing processing such as the maintenance of exclusive control information by resetting a shared channel after obtaining concents from all virtual computers to be used at the time of generating a channel error in the shared channel. CONSTITUTION:When a virtual computer VM(1)2-1 e.g. receiving the information of a channel error from the shared channel 4-1 through a CP 3 generates a channel reset instruction for resetting all devices managed by the shared channel 4-1 to the CP 3 in order to restore the channel error, the CP 3 informs an artificial channel error to other VM(2)2-2, 2-3, receives the answer of the channel reset instruction and then executes the channel reset instruction for the shared channel 4-1 to reset all the devices managed by the shared channel 4-1. Consequently, the maintenance of the exclusive control information of a DASD device managed by the shared channel 4-1 is executed, and under the status that a data set is prevented from being damaged or the like, the devices managed by the shared channel 4-1 generating a fault can be recovered.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62177690A JPH0833835B2 (en) | 1987-07-15 | 1987-07-15 | Error recovery controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62177690A JPH0833835B2 (en) | 1987-07-15 | 1987-07-15 | Error recovery controller |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6421542A true JPS6421542A (en) | 1989-01-24 |
JPH0833835B2 JPH0833835B2 (en) | 1996-03-29 |
Family
ID=16035403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62177690A Expired - Fee Related JPH0833835B2 (en) | 1987-07-15 | 1987-07-15 | Error recovery controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0833835B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05265783A (en) * | 1992-03-19 | 1993-10-15 | Fujitsu Ltd | Virtual computer system i/o control system |
JP2007233687A (en) * | 2006-03-01 | 2007-09-13 | Nec Corp | Virtual computer system, control method of virtual computer, and virtual computer program |
JP2012198651A (en) * | 2011-03-18 | 2012-10-18 | Nec Corp | Cluster system, virtual machine server, failover method for virtual machine, and failover program for the virtual machine |
-
1987
- 1987-07-15 JP JP62177690A patent/JPH0833835B2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05265783A (en) * | 1992-03-19 | 1993-10-15 | Fujitsu Ltd | Virtual computer system i/o control system |
JP2007233687A (en) * | 2006-03-01 | 2007-09-13 | Nec Corp | Virtual computer system, control method of virtual computer, and virtual computer program |
JP2012198651A (en) * | 2011-03-18 | 2012-10-18 | Nec Corp | Cluster system, virtual machine server, failover method for virtual machine, and failover program for the virtual machine |
Also Published As
Publication number | Publication date |
---|---|
JPH0833835B2 (en) | 1996-03-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE8603945D0 (en) | PROCEDURE FOR CONTINUOUS SWITCHING BETWEEN ACTIVE AND EMERGENCY DEVICES OF A COMPUTER EQUIPMENT AND DEVICE FOR IMPLEMENTATION OF THE PROCEDURE | |
ATE186787T1 (en) | REMOTE LOADING SYSTEM AND METHOD FOR LOADING A COMPUTER SYSTEM | |
DE3650651D1 (en) | Fault-tolerant data processing system | |
DK0543825T3 (en) | Device for interrupt distribution in a multi-computer system | |
JPS6421542A (en) | Channel reset instruction generation control system in virtual computer system | |
DE3380643D1 (en) | Method and apparatus for restoring data in a computing system | |
JPS5640901A (en) | Backup method of process control | |
JPS5518729A (en) | Parallel triple system constituting method of computer system | |
JPS5587220A (en) | Interface controller | |
JPS5566039A (en) | Composite data processing unit data processing unit | |
Henriksen | An interactive debugging facility for GPSS | |
JPS6453238A (en) | Processing system at fault generation of main body system in virtual computer system | |
Vandever | The DAIS Executive- An introduction(avionics computer software) | |
JPS54179A (en) | Back-up system of electronic controlling apparatus | |
JPS53142137A (en) | Memory control unit | |
JPS6426944A (en) | Debugging device for computer system | |
JPS57111653A (en) | Synchronous change-over system for duplex | |
JPS6428737A (en) | Fault recovery system for composite subsystem type on-line system | |
JPS542634A (en) | Address fault processing system | |
Gagliardi et al. | A transportable RSX11M system | |
Wilk et al. | Microprogram production environment to support computer system reliability. | |
JPS51112245A (en) | Monitor control system of electronic computer organization | |
Simmons et al. | On-line input techniques for bibliographic data | |
HUA-YING et al. | The design of the CZXT-013 JCL(Job Control Language) and the implementation of job control | |
JPS543444A (en) | Error detection system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |