本篇文章主要介绍了"调整Linux磁盘分区 Linux 磁盘自检介绍",主要涉及到调整Linux磁盘分区方面的内容,对于Linuxjrs看球网直播吧_低调看直播体育app软件下载_低调看体育直播感兴趣的同学可以参考一下:
在Linux系统中,有时候重启会耗费非常长的时间,如果你进一步检查细节,就会发现绝大部分时间都耗费在磁盘自检(fsck)上了,有时候遇到时间比较紧急的情...
[root@DB-Server ~]# tune2fs -l /dev/sda2 | grep -E "Maximum mount count|Check interval"
Maximum mount count: -1
Check interval: 604800 (1 week)
[root@DB-Server ~]#

如上所示,Check interval表示执行磁盘自检fsck的时间间隔,Maximum mount count表示强制自检的挂载次数,即达到最大挂载次数后,再次开机时就会强制自检。上面信息告诉我们,磁盘自检的时间间隔为一周,也就是7天。Maximum mount count 值为-1表示禁用这个功能。
如何更改磁盘自检设置?
加入我要将磁盘自检的时间间隔设置为一个月,那么可以如下设置
[root@DB-Server ~]# tune2fs -l /dev/sda2 | grep -i -E 'mount|check'
Last mounted on:
Default mount options: user_xattr acl
Last mount time: Mon Jul 4 11:30:54 2016
Mount count: 94
Maximum mount count: -1
Last checked: Sun Jan 4 21:34:24 2015
Check interval: 604800 (1 week)
Next check after: Sun Jan 11 21:34:24 2015
[root@DB-Server ~]# tune2fs -i 30 /dev/sda2
tune2fs 1.39 (29-May-2006)
Setting interval between checks to 2592000 seconds
[root@DB-Server ~]# tune2fs -l /dev/sda2 | grep -i -E 'mount|check'
Last mounted on:
Default mount options: user_xattr acl
Last mount time: Mon Jul 4 11:30:54 2016
Mount count: 94
Maximum mount count: -1
Last checked: Sun Jan 4 21:34:24 2015
Check interval: 2592000 (1 month)
Next check after: Tue Feb 3 21:34:24 2015
[root@DB-Server ~]#

如果我要设置磁盘挂载2次就必须进行磁盘自检,那么可以如下设置:
[root@DB-Server ~]# tune2fs -l /dev/sda2 | grep -i -E 'mount|check'
Last mounted on:
Default mount options: user_xattr acl
Last mount time: Mon Jul 4 11:30:54 2016
Mount count: 94
Maximum mount count: -1
Last checked: Sun Jan 4 21:34:24 2015
Check interval: 2592000 (1 month)
Next check after: Tue Feb 3 21:34:24 2015
[root@DB-Server ~]# tune2fs -c 2 /dev/sda2
tune2fs 1.39 (29-May-2006)
Setting maximal mount count to 2
[root@DB-Server ~]# tune2fs -l /dev/sda2 | grep -i -E 'mount|check'
Last mounted on:
Default mount options: user_xattr acl
Last mount time: Mon Jul 4 11:30:54 2016
Mount count: 94
Maximum mount count: 2
Last checked: Sun Jan 4 21:34:24 2015
Check interval: 2592000 (1 month)
Next check after: Tue Feb 3 21:34:24 2015
[root@DB-Server ~]#

当然,你也可以一起设置,如下所示