公开(公告)号：JPH05334237A

公开(公告)日：1993-12-17

申请号：JP1881493

申请日：1993-02-05

Applicant: TANDEM COMPUTERS INC

Inventor： ARUBAATO RUI ,  UIRIAMU TEI FURAA

IPC: G01D21/00 ,  G06F11/30 ,  G06F11/34 ,  G06F13/36

Abstract: PURPOSE: To provide a device for monitoring the environment of a remote component connected to a host processor by using a standard interface bus having a limited number of address ports and its method. CONSTITUTION: A host adapter 3 contains a bus repeater 4 and a monitoring logic section 5. The section 5 has a bus interface section 8 selectably connected to an interface bus 2 and a host processor 1, a control section 9, and an environment monitoring section 10. The bus repeater 4 has a host interface transceiver 6 connected to the host processor 1 through the interface bus 2 and a drive interface transceiver 7 connected to a storage device 13 through an interface bus 20. The transceivers 6 and 7 are connected to the control section 9 through control lines 11 and 12, respectively.

公开(公告)号：JPH05346866A

公开(公告)日：1993-12-27

申请号：JP31468492

申请日：1992-11-25

Applicant: TANDEM COMPUTERS INC

Inventor： ARUBAATO RUI ,  MAAKU ESU UOOKAA

IPC: G06F3/06 ,  G06F11/00 ,  G06F11/10 ,  G06F11/14 ,  G06F11/16 ,  G06F11/20 ,  G06F12/06 ,  G11C29/00

Abstract: PURPOSE: To establish the completion and maintenance of a data changing operation to a redundant array data storage system, and to establish the maintenance of redundancy in the system. CONSTITUTION: A check point is applied to an operation. After the completion of a buffer provided at a reliability host processing formed of main and second CPU 1a and 1b, written data in host CPU adapters 2a and 2b are blocked by a buffer 11 before the data are transmitted to array controllers 3a and 3b so that the completion of a data changing operation can not be disturbed by the fault of the CPU 1a and 1b. A reliability array processing is formed of the main and second array controllers 3a and 3b. A storage device 4 provided with the array controllers 3a and 3b and a storage array is backed up by a power battery. All data changing operation command information is stored by the non-volatile memory of an array controller for data records which are not sufficiently written in the storage devise 4 in order to prepare for the following retry.