ADDM will use the disk space over time. ADDM does not pre-allocate disk space for the database instead it will extend any database file when needed.
I am not fully convinced about that. Previously we trialed ADDM 9 with 60GB of disk space. And quickly ran out of disk space so we had our disk space expanded by 100GB (not a different disk, but the same disk since this is a VM on ESX host). However ADDM failed to see the added space. The appliance would not start as it complained about not having space.
Also, ADDM documentation says when there is 16GB of memory, it will create 32GB of swap space. But it still only created 8GB of swap space. With only 8GB of swap space before, it was consistently running out of memory during discovery. Can we just allocate more swap space manually?
When you extended the disk space did you also extended the file system so it would use the extended disk space?
I am not exactly sure how I can extend the file system other than by creating a new partition from the unallocated free space. Does ADDM even allow other partitions on the system disk?
It can be done but its outside of this discussion. ADDM is running on RedHat so anything allowed by RedHat will also work for ADDM when it comes to disk partitions.
Did you follow the instruction in BMC Atrium Discovery Community | ADDM 9.0 | Managing disks and swap space under section "To move data to a new disk"?
The instruction works only with a totally separate disk. And if the new disk has any partition mounted, ADDM won't even recognize it.
It seems to me that I should start with a 60GB disk first, then have another disk and migrate the data and create extra swap space, which does not make sense when I already have tons of space in the system disk.
have you resolved your issue ? in my case there are two virtual disk , VM team has extended size of 2nd disk from 200 GB to 900 GB , i have reboot appliance after this, but still under disk specification on UI its showing RED alert with WARNING! This appliance has insufficient storage.
what i need to do get extended size reflect on ADDM side so that the Warning could remove ?