vCenter/PSC (VCSA) -/dev/mapper/archive_vg-archive 95% usage -FIX

Note: The partition /storage/archive partition can get full by design, as it is aimed at storing as much WAL history as possible and is automatically cleaned up by the archiver service by removing automatically the oldest WAL segments.

Note: These files can be removed manually but not recommended as it will be automatically done by the archiver service. In any case it will not cause any issues to VCSA functionality. Also, do not increase any partition on VCSA. VMware does not recommend increasing VCSA partition.

Note: WAL data is Write-Ahead logging for the Postgres DB - transaction logging essentially. It should auto-rotate and engineering has designed the partition to fill up to maximize transaction history. The fix was to exclude this partition from the health alerting. It will still fill up but won't throw an alarm.

Workaround: Disabling Alerts (safely) in VMware vRealize Operations Manager or any inhouse monitoring tool

Reference VMware KB: https://kb.vmware.com/s/article/57829

Steps:

- Log in to the VCSA or PSC SSH console as root user.

- To Check Disk space run df -h

- Navigate to the archive directory in SSH cd /storage/archive/vpostgres and check the files ls -ltr ( Note: /dev/mapper/archive_vg-archive 95% usage )

- find files older than 60 Days run find * -mtime +60

- To remove the files older than 60 Days run find -mindepth 1 -mtime +60 -delete

- Check Disk space run df -h ( Note: /dev/mapper/archive_vg-archive now it has 33% usage )

- issue got fixed