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HP-UX 11i v3 Operating Environments - How to Mirror Root Disk on an Itanium Server in HP-UX 11.31 Use the following commands to determine the size of the EFI, HP-UX, and HPSP partitions in megabytes on the current boot disk: #?diskinfo?-b?/dev/rdisk/root_disk_p1?|?awk?{print?$1?/?(1024)} #?diskinfo?-b?/dev/rdisk/root_disk_p2?|?awk?{print?$1?/?(1024)} #?diskinfo?-b?/dev/rdisk/root_disk_p3?|?awk?{print?$1?/?(1024)} Where boot_ disk is the character device special file of the current boot disk (for example, /dev/rdisk/disk4 ). Identify a disk that is not currently in use to be used as the mirror. This EFI partition should be as large as the EFI partition on the current disk. The HP-UX partition should be large enough to hold all the logical volumes in the clone. Although the HPSP partition is optional, if it is created, it should be the same size as the HPSP on the clone. Create a temporary file, for example /tmp/partitionfile , containing the number of partitions and the size of each partition to be created on the mirror disk. Use the information from steps 1 and 2 to determine partition sizes. Here is a sample command to create the file, indicating three partitions with an EFI partition size of 500 MB, an HPSP partition size of 400 MB, and the remaining space allocated to the HP-UX partition: #?print?3\nEFI?500MB\nHPUX?100%\nHPSP?400MB??/tmp/partitionfile See idisk(1M) for more information about partitioning disks. Use the file created in step 3 to partition the mirror disk with idisk . (The echo will reply to the confirmation request from the idisk command.) #?echo?yes?|?idisk?-wf?/tmp/partitionfile?/dev/rdisk/mirror_disk /tmp/partitionfile may be removed if desired. Use ioscan –fnkC disk to determine the hardware path to the mirror disk. Use the insf command to create device files for all the newly-created partitions: #?insf?–e -H?hardware_path_of_mirror_disk Run the pvcreate command on the character device file for the HP-UX (second) partition of the mirror dis