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Impact of enabling ASYNCIO on Normal Filesystems

Alzhy
Honored Contributor

Impact of enabling ASYNCIO on Normal Filesystems

Does it have any impact on VxFS cached filesystems?

Hakuna Matata.
4 REPLIES
Steven E. Protter
Exalted Contributor

Re: Impact of enabling ASYNCIO on Normal Filesystems

Shalom,

Should be no impact at all except faster I/O.

There have been some issues with certain versions of Oracle on cooked file systems. Possible data corruption. Check metalink in that case.

SEP
Steven E Protter
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Eric Antunes
Honored Contributor

Re: Impact of enabling ASYNCIO on Normal Filesystems

It is supported but, in HP-UX 11.11, you need to have patch PHKL_25506 applied (see Metalink Note 43507.1)

Cheers,

Eric
Each and every day is a good day to learn.
Alzhy
Honored Contributor

Re: Impact of enabling ASYNCIO on Normal Filesystems

The question really was will async_io have an adverse impact on non-raw storage. I guess common sense dictates it should not as you can't ever have the OS on raw storage - can we.

Eric - quality answer though -- thanks for the tip on the patch. We do have it.
Hakuna Matata.
Eric Antunes
Honored Contributor

Re: Impact of enabling ASYNCIO on Normal Filesystems

Hi,

Based on my experience, Oracle RDBMS will ignore asyncio on vxfs filesystems.

Best Regards,

Eric
Each and every day is a good day to learn.