Appeal No. 2001-2351
Application No. 08/772,443
Appellants’ Invention
The invention of Figure 1 provides a mechanism by which data
transfers from a peripheral interface 120 of a disk array to a
data buffer 114 are snooped to determine if the starting address
of a data transfer matches an entry in a list of starting
addresses stored in host interface control 112. If snooping
circuit 422 (Figure 4) of host interface control 112 detects a
match between an actual data transfer starting address and a
starting address in a list of data transfers in a queue, the
snooping circuit signals a buffer interface control unit 404 to
initiate transfer of the data on a buffer data bus 116 into a
buffer bus interface unit 400. By doing so, data may be obtained
for a host interface directly from a peripheral interface control
110 via the buffer data bus 116 without first storing the data in
the data buffer 114, and subsequently transferring the data via a
host interface control 112 to the host interface and, ultimately,
to the host system (Figure 1). By virtue of the present
invention, a current data transfer from interface control 110 may
be simultaneously received by both the data buffer and the host
system.
-3–
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007