"Winchester" IO is really any block-device IO: disk or tape.
So it's not abnormal to see that;  but it does look pretty high.
Are you getting the performance you expect?
Does vmstat say you're paging at these times?

-----------------------------
Mr. Lindsay Morris
Lead Architect
www.servergraph.com
512-482-6138 ext 105

> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
> Juan Manuel Lopez Azanon
> Sent: Friday, November 07, 2003 4:53 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject:
>
>
> Hi all.
>
>         I need your help for this.
>         We have a HPUX 11.0 and TSM Server 5.1.5 running with an IBM
> library 3584 connected to server with IBM switch, fibre channel and
> tachyon cards.
>         Every time the Tsm server make the disk migration or stgp
> reclamation, hpux server is full wio:
>
> 10:44:31    %usr    %sys    %wio   %idle
> 10:44:32      14       1      85       0
> 10:44:33      12       4      84       0
> 10:44:34      16       2      82       0
> 10:44:35       7       0      93       0
> 10:44:36      18       3      79       0
> 10:44:37       8       4      88       0
> 10:44:38       3       0      97       0
> 10:44:39      10       1      89       0
> 10:44:40      25       2      73       0
> 10:44:41      23       0      77       0
>
> Is it normal ?.
>