When adding new disks make sure that each disk group has disks of the same size.
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Create and attach new volumes to the AWS instance. Attach the volumes using disk names xvdba through xvdbz - these disks will be automatically available for use in ASM.
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Confirm FlashGrid names of the new disks, e.g. myhostname.xvdbb
[fg@myhostname ~] $ flashgrid-node
If the new disks are not listed then check that the corresponding devices (e.g. /dev/xvdbb) are visible in the OS. If they are visible in the OS then run as root
flashgrid-node reload-config
and check output of
flashgrid-cluster drives
again. If they are not visible in the OS then double-check that you have attached them with correct device names. -
Add the new disks to an existing disk group (or create a new disk group). Example:
[fg@myhostname ~] $ flashgrid-dg add-disks -G MYDG -d /dev/flashgrid/myhostname.xvdb[a-c]