Hi , I am creating volume group on SLES 9 SP3 server. LV creation is failing with error message ?device-mapper ioctl cmd 9 failed: Invalid argument? System configuration : OS: SLES9 SP3 Hardware: i386 LVM version: 2.01.14 (2005-08-04) Library version: 1.01.01 (2005-03-29) Driver version: 4.4.0 Kernel version: 2.6.5-7.244-smp Device mapper multipath version : 0.4.5-0.11 Any body has come cross similar situation. ? Please help me to resolve this issue The screen shot is HALIN02:~ # lvcreate -L1M -n rsm-part-disk-vg-lv rsm-part-disk-vg Found duplicate PV g8R9DTRugiA5SmfXJ3QWXe3hJhz43GaG: using /dev/sdc not /dev/sda Found duplicate PV YaPhu7JBspihkYXUSskLExtolxt82otV: using /dev/sdd1 not /dev/sdb1 Found duplicate PV g8R9DTRugiA5SmfXJ3QWXe3hJhz43GaG: using /dev/sde not /dev/sda Found duplicate PV YaPhu7JBspihkYXUSskLExtolxt82otV: using /dev/sdf1 not /dev/sdb1 Found duplicate PV g8R9DTRugiA5SmfXJ3QWXe3hJhz43GaG: using /dev/sdg not /dev/sda Found duplicate PV YaPhu7JBspihkYXUSskLExtolxt82otV: using /dev/sdh1 not /dev/sdb1 /dev/sdi: read failed after 0 of 4096 at 0: Input/output error /dev/sdj: read failed after 0 of 4096 at 0: Input/output error /dev/sdk: read failed after 0 of 4096 at 0: Input/output error /dev/sdl: read failed after 0 of 4096 at 0: Input/output error Rounding up size to full physical extent 4.00 MB device-mapper ioctl cmd 9 failed: Invalid argument Couldn't load device 'rsm--part--disk--vg-rsm--part--disk--vg--lv'. Failed to activate new LV. Thanks in advance. Regards Santhosh ____________________________________________________________________________________ Want to start your own business? Learn how on Yahoo! Small Business. http://smallbusiness.yahoo.com/r-index _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/