Re: Anyone running JFS2 Concurrent I/O with 9i on AIX 5.2?
- From: "zhu chao" <chao_ping@xxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 28 Apr 2004 08:06:03 +0800
CIO is a feature of AIX 5.2 JFS2.
There is a whitepaper talking about this feature on IBM site. you can search
for it.
According to that paper, performance is near that of raw device.
I have saw some patch for CIO from IBM. As it is a new feature you'd better
test it carefully before put it into production.
Regards
Zhu Chao.
----- Original Message -----
From: "Mladen Gogala" <mladen@xxxxxxxxxxxxxxx>
To: <oracle-l@xxxxxxxxxxxxx>
Sent: Wednesday, April 28, 2004 3:28 AM
Subject: Re: Anyone running JFS2 Concurrent I/O with 9i on AIX 5.2?
> What is JFS2? What is Concurrent I/O? Do you have a URL? I'm using JFS on
Linux
> and I'm a fan, but I've never heard of JFS2 and concurrent I/O? What is
the difference
> between JFS and JFS2, besides additional number at the end of the name?
>
>
> On 04/27/2004 11:37:44 AM, Thomas Jeff wrote:
> > Supposedly, the performance is much better due to alleviating the
> > inode write serialization issue.
> > Does Oracle enforce serialization if Concurrent I/O is turned on?
> >
> > --------------------------------------------
> > Jeffery D Thomas
> > DBA
> > Thomson Information Services
> > Thomson, Inc.
> >
> > Email: jeff.thomas@xxxxxxxxxxx
> >
> > Indy DBA Master Documentation available at:
> > http://gkmqp.tce.com/tis_dba
> > --------------------------------------------
> >
> >
> >
> > ----------------------------------------------------------------
> > Please see the official ORACLE-L FAQ: http://www.orafaq.com
> > ----------------------------------------------------------------
> > To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx
> > put 'unsubscribe' in the subject line.
> > --
> > Archives are at //www.freelists.org/archives/oracle-l/
> > FAQ is at //www.freelists.org/help/fom-serve/cache/1.html
> > -----------------------------------------------------------------
> >
>
> --
> Mladen Gogala
> Oracle DBA
>
>
>
> Note:
> This message is for the named person's use only. It may contain
confidential, proprietary or legally privileged information. No
confidentiality or privilege is waived or lost by any mistransmission. If
you receive this message in error, please immediately delete it and all
copies of it from your system, destroy any hard copies of it and notify the
sender. You must not, directly or indirectly, use, disclose, distribute,
print, or copy any part of this message if you are not the intended
recipient. Wang Trading LLC and any of its subsidiaries each reserve the
right to monitor all e-mail communications through its networks.
> Any views expressed in this message are those of the individual sender,
except where the message states otherwise and the sender is authorized to
state them to be the views of any such entity.
>
> ----------------------------------------------------------------
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> ----------------------------------------------------------------
> To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx
> put 'unsubscribe' in the subject line.
> --
> Archives are at //www.freelists.org/archives/oracle-l/
> FAQ is at //www.freelists.org/help/fom-serve/cache/1.html
> -----------------------------------------------------------------
>
>
----------------------------------------------------------------
Please see the official ORACLE-L FAQ: http://www.orafaq.com
----------------------------------------------------------------
To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx
put 'unsubscribe' in the subject line.
--
Archives are at //www.freelists.org/archives/oracle-l/
FAQ is at //www.freelists.org/help/fom-serve/cache/1.html
-----------------------------------------------------------------
Other related posts:
