发明名称 |
SINGLE PHYSICAL MAIN STORAGE SHARED BY TWO OR MORE PROCESSORS EXECUTING RESPECTIVE OPERATING SYSTEMS |
摘要 |
The functions of two virtual operating systems (e.g., S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated from 1 to 16 megabytes of contiguous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques. The S/370 is limit checked to prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices. The S/88 processors access the S/370 address space in direct response to a S/88 application program so that the S/88 may move I/O data into the S/370 I/O buffers and process the S/370 I/O operations. The S/88 and S/37C peer processor pairs execute their respective Operating Systems in a single system environment without significant rewriting of either operating system. Neither operating system is aware of the other operating system nor the other processor pairs.
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申请公布号 |
CA2009548(C) |
申请公布日期 |
1996.07.02 |
申请号 |
CA19902009548 |
申请日期 |
1990.02.07 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BAKER, ERNEST D.;DINWIDDIE, JOHN M., JR.;GRICE, LONNIE E.;LOFFREDO, JOHN M.;SANDERSON, KENNETH R.;SUAREZ, GUSTAVO A. |
分类号 |
G06F9/46;G06F9/50;G06F11/16;G06F12/02;G06F13/18;G06F15/16;G06F15/167;G06F15/177;(IPC1-7):G06F12/00 |
主分类号 |
G06F9/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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