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Operating Systems AIX IBM AIX I/O Performance Tuning Post 303031390 by rowswell on Wednesday 27th of February 2019 04:06:04 PM
Old 02-27-2019
Can you change the hdisk max_transfer size from 0x80000 to 0x40000 and re-test? You will have to unmount the filesystem, varyoff the VG and run the chdev command.
 

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DSKTUNE(1)						      General Commands Manual							DSKTUNE(1)

NAME
dsktune - reports memory, network, and file system tuning settings which can affect the performance of the Directory Server SYNOPSIS
dsktune [-q] [-c] [-D] [-v] [-i installdir] DESCRIPTION
Reports memory, network, and file system tuning settings which can affect the performance of the Directory Server OPTIONS
A summary of options is included below: -q dsktune only reports essential settings -c dsktune only reports tuning information for client machines -D dsktune also reports the commands executed -v dsktune only reports its release version date -i installdir specify alternate server installation directory AUTHOR
dsktune was written by the 389 Project. REPORTING BUGS
Report bugs to http://bugzilla.redhat.com. COPYRIGHT
Copyright (C) 2001 Sun Microsystems, Inc. Used by permission. Copyright (C) 2008 Red Hat, Inc. This manual page was written by Michele Baldessari <michele@pupazzo.org>, for the Debian project (but may be used by others). This is free software. You may redistribute copies of it under the terms of the Directory Server license found in the LICENSE file of this software distribution. This license is essentially the GNU General Public License version 2 with an exception for plug-in distribution. May 18, 2008 DSKTUNE(1)
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