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see if async i/o is enabled in Solaris 9

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Operating Systems Solaris see if async i/o is enabled in Solaris 9
# 1  
Old 05-07-2010
see if async i/o is enabled in Solaris 9
Hi guys.
This may be a stupid question but I am trying to see if my Solaris 9 server has async i/o enabled...

Is there a quick way to determine this?

Thanks in advance.
# 2  
Old 05-07-2010
Offhand, on Solaris I don't think there's a way to DISABLE it, any more than there's a way to disable read() or write() system calls.

IIRC, though, lio_listio() and the aio_*() library calls on Solaris pretty much only work as real asynchronous IO on raw devices, SAM/QFS file systems, and maybe Veritas file systems. Outside of those, though, if you use those library calls they'll get translated into multiple and multithreaded pread()/pwrite() calls by code in libc.
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