HP Surestore Disk Array 12h System Administrator's Guide for HP-UX, MPE, and W - Page 60

HP-UX Using the ARM Command Line Utilities for HP-UX Downloading Firmware Firmware Download Procedure With LVM When LVM has access to the disk array the procedure described below should be followed to perform the download. This procedure works for single or multi-host configurations. CAUTION! In multi-host configurations, other hosts must not access the disk array while the download is in progress. Data can be lost if write requests are made to the disk array while a download is in progress. If the arraymond process is running, it can disrupt the download. Make sure you kill the arraymond process before starting a download. If the root or opt file system is contained on the array, the offline diagnostic (ARDIAG) must be used to download the firmware. If the stand, var, usr, tmp file system or swap partition are contained on the disk array, the download must be performed in single user mode or off line, using ARDIAG. NOTE! The download process automatically shuts down the array. The array Shutdown will not succeed unless all file systems have been unmounted and LVM access to the array has been deactivated. To download firmware to the array controllers or to the disk mechanism: 1. Unmount all logical volumes mapped to the disk array. 2. Deactivate all LVM volume groups containing logical volumes mapped to the disk array. 3. Download the controller or disk mechanism firmware. 4. Reactivate the LVM groups deactivated in step 2. 5. Remount the LVM logical volumes unmounted in step 1. For example, if two LVM logical volumes (lvol1 and lvol2) are defined on the disk array and both logical volumes are contained in the volume group vg02, the steps to download the firmware are: 1. Umount the logical volumes. umount /dev/vg02/lvol1 umount /dev/vg02/lvol2 2. Deactivate the volume group. vgchange -a n /dev/vg02 60