Re: High priority I/O with IFS MOV

[DrFranken <midrange@xxxxxxxxxxxx>]

Sue,

	The disks for ASP(2) are internal disks on the latest quad port SAS 
IOAs with the disks in 5887 drawers. The disks for ASP(1) are V3700 SAN 
disk connected via Fiber and VIOS. This should take the IOA issue off 
the table I think.

        - Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 12/5/2016 1:00 PM, Sue Baker wrote:
> DrFranken <midrange@xxxxxxxxxxxx>
> wrote on Thu, 01 Dec 2016 15:10:04 GMT:
>
> > Any thoughts on how to reduce the impact to the system here?
> > Would a CPY followed by a DEL be better than a MOV?
>
> I think this may be exactly what is happening at a very low
> level on the system because the files are moving from ASP1 to
> ASP2 due to your mount of the UDFS. You may have uncovered
> something in system code which needs to be looked at by support.
>
> Your disks for ASP2, are they hanging off their own IOAs or on
> the same IOAs as ASP1? If on the same IOAs, it might be IOs are
> queuing in the adapter and contributing to overall poor system
> performance.