06-02-2006
Have you checked out a NIM server? I am currently investigating this strategy myself; creating a NIM server then replicating the data off-site. I'm curious if you've found any other good ideas?
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LEARN ABOUT CENTOS
strategy
strategy(9E) Driver Entry Points strategy(9E)
NAME
strategy - perform block I/O
SYNOPSIS
#include <sys/types.h>
#include <sys/buf.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
int prefixstrategy(struct buf *bp);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI). This entry point is required for block devices.
PARAMETERS
bp Pointer to the buf(9S) structure.
DESCRIPTION
The strategy() routine is called indirectly (through cb_ops(9S)) by the kernel to read and write blocks of data on the block device. strat-
egy() may also be called directly or indirectly to support the raw character interface of a block device (read(9E), write(9E) and
ioctl(9E)). The strategy() routine's responsibility is to set up and initiate the transfer.
In general, strategy() should not block. It can, however, perform a kmem_cache_alloc(9F) with both the KM_PUSHPAGE and KM_SLEEP flags set,
which might block, without causing deadlock in low memory situations.
RETURN VALUES
The strategy() function must return 0. On an error condition, it should call bioerror(9f) to set b_flags to the proper error code, and call
biodone(9f). Note that a partial transfer is not considered to be an error.
SEE ALSO
ioctl(9E), read(9E), write(9E), biodone(9F), bioerror(9F), buf(9S), cb_ops(9S), kmem_cache_alloc(9F)
Writing Device Drivers
SunOS 5.10 6 Nov 2003 strategy(9E)