4 weeks ago
Exasol on Docker has multiple options when it comes to data storage. You can either use a partition/disk or a storage file located in a specific location on the Docker host. The examples below all use a file system to store the dev.1 file which is used by EXAStorage.
1. Add a physical device to LVM:
$ pvcreate /dev/vda
2. Create a volume group:
$ vgcreate VG1 /dev/vda
3. Create a logical volume:
$ lvcreate --size 30G VG1
4. Add a filesystem:
$ mkfs.ext4 /dev/VG1/lvol0
5. Mount:
$ mount /dev/VG1/lvol0 /mnt/
5.1. or Mount Permanently by adding it to /etc/fstab:
$ echo
When you reach the limit of your storage device you can increase its capacity by executing the commands below:
1. Increase the size of the physical device:
$ pvresize /dev/vda
2. Extend logical volume and resize the file system:
$ lvextend -r -L +20GB /dev/VG1/lvol0
2.1. or if lvextend was executed without -r:
$ resize2fs /dev/VG1/lvol0
If you prefer using a storage file, you can do the following:
1. Add physical device to LVM:
$ pvcreate /dev/vdb
2. Extend volume group:
$ vgextend VG1 /dev/vdb
3. Extend logical volume and resize FS:
$ lvextend -r -L+100G /dev/VG1/lvol0
3.1. or if lvextend was executed without -r:
$ resize2fs /dev/VG1/lvol0
4. Enter container and enlarge file device:
$ truncate --size=+10GB /exa/data/storage/dev.1 $ cshdd --enlarge -n 11 -h /exa/data/storage/dev.1
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