Adding disks for use in ASM (FlashGrid Server on Azure)

When adding new disks, make sure that each disk group has disks of the same size.

1. 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.

2. 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, as the root user, run flashgrid-node reload-config and check the output of  flashgrid-node again.

   If they are not visible in the OS, then double-check that you have attached them with the correct LUN numbers.

3. 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]