# glusterfs 性能配置优化
# 修改配置
arch-img 为存储名称
# 命令合集
| 命令 | 作用 | 备注 |
|---|---|---|
| gluster volume set arch-img cluster.min-free-disk | 默认是10% 磁盘剩余告警 | |
| gluster volume set arch-img cluster.min-free-inodes | 默认是5% inodes 剩余告警 | |
| gluster volume set arch-img performance.read-ahead-page-count 8 | 默认4，预读取的数量 | |
| gluster volume set arch-img performance.io-thread-count 16 | 默认16 io 操作的最大线程 | |
| gluster volume set arch-img network.ping-timeout 10 | 默认42s | |
| gluster volume set arch-img performance.cache-size 2GB | 默认128M 或32MB， | |
| gluster volume set arch-img cluster.self-heal-daemon on | 开启目录索引的自动愈合进程 | |
| gluster volume set arch-img cluster.heal-timeout 300 | 自动愈合的检测间隔，默认为600s | #3.4.2版本才有 |
| gluster volume set arch-img performance.write-behind-window-size 256MB | #默认是1M 能提高写性能单个文件后写缓冲区的大小默认1M |