<svg xmlns="http://www.w3.org/2000/svg" width="960" height="420"><rect width="960" height="420" fill="#f7f4ff"/><text x="40" y="50" font-size="28" font-family="Arial" fill="#4c1d95">PDB在计划性中断中的保护位置</text><g font-family="Arial" font-size="18"><rect x="60" y="130" width="170" height="85" rx="14" fill="#fff" stroke="#7c3aed" stroke-width="2"/><text x="98" y="166">节点维护</text><text x="100" y="194">drain</text><rect x="300" y="130" width="170" height="85" rx="14" fill="#fff" stroke="#7c3aed" stroke-width="2"/><text x="326" y="166">驱逐请求</text><text x="338" y="194">Eviction API</text><rect x="540" y="115" width="180" height="115" rx="16" fill="#ede9fe" stroke="#7c3aed" stroke-width="3"/><text x="585" y="160">PDB判断</text><text x="570" y="190">是否低于预算</text><rect x="790" y="130" width="120" height="85" rx="14" fill="#fff" stroke="#7c3aed" stroke-width="2"/><text x="814" y="166">允许或</text><text x="814" y="194">等待</text><path d="M230 172H300M470 172H540M720 172H790" stroke="#7c3aed" stroke-width="4"/></g></svg>