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	Submitted by: lvo
coolcommand mirrorvg - how to mirror a disk in IBM AIX
Description How to mirror a disk in the rootvg on an IBM AIX server: Find which disk is in the rootvg already (hdisk0 is in example) # lspv hdisk0 0003560f5b38488b rootvg hdisk1 none None hdisk2 none None hdisk3 none None Add the second disk by entended the rootvg (hdisk1 in this example) # extendvg rootvg hdisk1 0516-1254 extendvg: Changing the PVID in the ODM. Mirror the original disk with the new disk # mirrorvg rootvg hdisk0 hdisk1 0516-1124 mirrorvg: Quorum requirement turned off, reboot system for this to take effect for rootvg. 0516-1126 mirrorvg: rootvg successfully mirrored, user should perform bosboot of system to initialize boot records. Then, user must modify bootlist to include: hdisk0 hdisk1. Create the new boot image # bosboot -a bosboot: Boot image is 7213 512 byte blocks. Add the second disk to the boot list # bootlist -m normal hdisk0 hdisk1
Example extendvg rootvg hdisk1;mirrorvg rootvg hdisk0 hdisk1;bosboot -a; bootlist -m normal hdisk0 hdisk1

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