You may want to talk to your hardware vendor on this. Some times this could be dependent on your hardware, EMC, IBM, STK, etc....
They may have some insight for you on this question. Lizette > -----Original Message----- > From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of > Tommy Tsui > Sent: Monday, October 08, 2018 8:37 PM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Disk i/o problem > > hi all， > During online，one our dwdm link suspend 50ms，and the switch port offline > and then online within 1 second，we found os issued IOS080i i/o exceed > timeout value alert，our MIH set IOTDASD=00:07，most our cics trans timeout > and some db2 logcopy hang，how come just 1 second interrupted and casued all > trans timeout？any parameter can turning？any shop hit the same problem ？ > many > thanks > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
