When adding new disks make sure that each disk group has disks of the same size.
- Create and attach new disks to the VM. Attach the disks using LUN numbers 1 through 49 - these LUNs will be automatically available for use in ASM.
Note: Read-only caching must be enabled for all new disks. Read-Write and None modes are not supported and may create reliability problems.
Confirm FlashGrid names of the new disks, e.g. myhostname.lun3
[fg@myhostname ~] $ flashgrid-node
If the new disks are not listed then check that the corresponding devices (e.g. /dev/lun3) are visible in the OS. If they are visible in the OS then runand check output of
# flashgrid-node reload-config
If they are not visible in the OS then double-check that you have attached them with correct LUN numbers.
Add the new disks to an existing disk group (or create a new disk group).
Example A (adding 2 disks myhostname.lun2 and myhostname.lun3):
[fg@myhostname ~] $ flashgrid-dg add-disks -G MYDG -d /dev/flashgrid/myhostname.lun2 /dev/flashgrid/myhostname.lun3
Example B (using wildcards for adding 3 disks lun3/lun4/lun5):
[fg@myhostname ~] $ flashgrid-dg add-disks -G MYDG -d /dev/flashgrid/myhostname.lun[3-5]