I'm running the (linux) docker version of SQL server on Mac. I have the main data directory for SQL server defined as a mounted docker volume at:
/var/opt/mssql/data
My docker disk usage has now hit 92Gb. I've gone into SQL server and removed some unused databases, which removed about 60Gb of data. How do I reclaim that space? Right now docker still shows the same disk usage. I've logged into the running docker container and verified that the database files are removed, but I'm unsure how to reclaim the space. If I run the mount command inside the container I can see the mounted volume:
/dev/sda1 on /var/opt/mssql/data type ext4 (rw,relatime,stripe=1024,data=ordered)
If I do a df this volume now appears to be only using 26Gb, assuming it really is the volume shown as /dev/sda1 here:
[root@4a74a4f096d2 data]# df -h
Filesystem Size Used Avail Use% Mounted on
overlay 88G 26G 59G 31% /
tmpfs 64M 0 64M 0% /dev
tmpfs 1000M 0 1000M 0% /sys/fs/cgroup
/dev/sda1 88G 26G 59G 31% /etc/hosts
shm 64M 0 64M 0% /dev/shm
tmpfs 1000M 0 1000M 0% /proc/acpi
tmpfs 1000M 0 1000M 0% /sys/firmware
docker system df doesn't appear to be much use as it doesn't seem to even think the volume is in use:
TYPE TOTAL ACTIVE SIZE RECLAIMABLE
Images 9 1 5.091GB 3.162GB (62%)
Containers 1 1 86.85MB 0B (0%)
Local Volumes 2 0 20.5GB 20.5GB (100%)
Build Cache 0 0 0B 0B
How can I reclaim this space? Thanks.
