#!/bin/bash
# O playbook de producao usa `qemu-img convert -p -O qcow2 -c`. A saida do
# virt-v2v NAO e comprimida (140 GB). Comprimir reduz transferencia e ocupacao
# no storage secundario da Wevy -- que e o suspeito da parada aos 128 GiB.
SRC=/NFS01/migrate/DEVTHOMSON-WCI/DEVTHOMSON-WCI-disk-0.qcow2
DST=/NFS01/migrate/DEVTHOMSON-WCI/DEVTHOMSON-WCI-disk-0-c.qcow2
LOG=/NFS01/migrate/logs/comprimir-devthomson.log
exec >> "$LOG" 2>&1
echo "=== $(date -u) comprimindo ==="
ls -lh "$SRC"
time qemu-img convert -p -O qcow2 -c -m 16 -W "$SRC" "$DST"
echo "rc=$?"
ls -lh "$DST"
qemu-img info "$DST" | head -6
echo "=== $(date -u) fim ==="