发明名称 |
Data processing system and method for prohibiting access to a SCSI bus |
摘要 |
A data processing system and method are disclosed for prohibiting access to a SCSI bus prior to a correct entry of an access password. The system includes a plurality of internal SCSI bus devices coupled to the SCSI bus. The system also includes an external SCSI connector for coupling external SCSI devices to the SCSI bus. The access password is established and stored within the system. The plurality of internal SCSI bus devices and the external devices are prohibited from accessing the SCSI bus prior to a correct entry of the access password. The SCSI bus includes a busy signal line. Prior to a correct entry of the access password, the system asserts the busy signal line, indicating that the SCSI bus is busy. Both internal and external devices are prohibited from accessing the SCSI bus while the busy signal line is asserted.
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申请公布号 |
US6470455(B1) |
申请公布日期 |
2002.10.22 |
申请号 |
US19990282330 |
申请日期 |
1999.03.31 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CROMER DARYL CARVIS;LOCKER HOWARD;RHOADES DAVID;WARD JAMES PETER |
分类号 |
G06F21/00;(IPC1-7):G06F11/30;G06F13/00;G06F13/38 |
主分类号 |
G06F21/00 |
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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