Appendix D. Example gdeploy configuration file for configuring compression and deduplication
Virtual Data Optimizer (VDO) volumes are supported as of Red Hat Hyperconverged Infrastructure for Virtualization 1.5 when enabled at deployment time. VDO cannot be enabled on existing deployments.
Deploying Red Hat Hyperconverged Infrastructure for Virtualization 1.5 with a Virtual Data Optimizer volume reduces the actual disk space required for a workload, as it enables data compression and deduplication capabilities. This reduces capital and operating expenses.
gdeployConfig.conf file is located at
/var/lib/ovirt-hosted-engine-setup/gdeploy/gdeployConfig.conf. This configuration file is applied when Enable Dedupe & Compression is checked during deployment.
# VDO Configuration [vdo1:@HOSTNAME@] action=create devices=sdb,sdd names=vdo_sdb,vdo_sdd logicalsize=164840G,2000G # Logical size(G) is ten times of actual brick size. If logicalsize >= 1000G, then slabsize=32G. blockmapcachesize=128M readcache=enabled readcachesize=20M emulate512=on writepolicy=sync ignore_vdo_errors=no slabsize=32G,32G # Create physical volume on all hosts [pv1] action=create devices=/dev/mapper/vdo_sdb ignore_pv_errors=no # Create volume group on all hosts [vg1] action=create vgname=gluster_vg_sdb pvname=/dev/mapper/vdo_sdb ignore_vg_errors=no