> kernel: dasd_erp(3990): > /dev/dasdi(94:32),0617@0x1c4:Environmental data present > kernel: dasd_erp(3990): /dev/dasdi(94:32),0617@0x1c4:FORMAT 6 > - Overrun on channel C > kernel: dasd:/dev/dasdi(94:32),0617@0x1c4:ERP successful > kernel: dasd_erp(3990): > /dev/dasdj(94:36),0625@0x1d2:Environmental data present > kernel: dasd_erp(3990): /dev/dasdj(94:36),0625@0x1d2:FORMAT 6 > - Overrun on channel D > kernel: dasd:/dev/dasdj(94:36),0625@0x1d2:ERP successful > > Could anyone explain to me what these messages mean and > whether should I be worried or no ?
Check your IOCP and make sure that the channel and control unit definitions for the 3990 disk controller these 3380s are attached to has PROTOCL=S4 specified if the control unit supports 4.5Mb/sec streaming. The messages are indicating that I/O is trying to go too fast to the controller and the channel subsystem is rejecting the request and performing recovery. > The same happens with 4 other dasds. All 6 dasds are a > logical volume - probably this is important... > I don't see anything unusual happening to the logical volume > from the user's point of view - everything seems to be in > perfect order. > And what's strange is that I am using old 3380 dasds, yet in > these messages a number 3390 occurs. I think you have a typo here; the number in the message is 3990, not 3390. This is a command reject from the control unit, not the disk. > > Any help will be much appreciated. > > Maciek > > > > ------ > Maciej Ksiezycki > Systems Programmer > Unizeto - Computing Centre > http://www.unizeto.pl >
