Using the following, which was provided to me, # echo "add device range=0206" > /proc/dasd/devices
I took the liberty of modifing the command to have >> so that I don't blow away my devices file. I then execute the following dasdfmt command: dasdfmt -y -b 4096 -n 0206 dasdfmt: Unable to open device /dev/dasd/0206/device: No such file or directory My devices file looks like this: 0200(ECKD) at ( 94: 0) is dasda : active at blocksize: 4096, 144000 blocks, 562 MB 0201(ECKD) at ( 94: 4) is dasdb : active at blocksize: 4096, 594000 blocks, 2320 MB 0202(ECKD) at ( 94: 8) is dasdc : active at blocksize: 4096, 594000 blocks, 2320 MB 0203(ECKD) at ( 94: 12) is dasdd : active at blocksize: 4096, 594000 blocks, 2320 MB 0204(ECKD) at ( 94: 16) is dasde : active at blocksize: 4096, 594000 blocks, 2320 MB 0205(ECKD) at ( 94: 20) is dasdf : active at blocksize: 4096, 594000 blocks, 2320 MB 0292(none) at ( 94: 24) is dasdg : unknown 0206(ECKD) at ( 94: 28) is dasdh : active at blocksize: 4096, 594000 blocks, 2320 MB Anyidea what is happening here? I have noticed that the dasdfmt command isn't cooperating in SLES8. Where if I execute format at the VM layer all is well. Thanks! Eric Sammons (804)697-3925 FRIT - Infrastructure Engineering