中国黑防联盟

Linux如何在VMware下扩展磁盘

中国黑防联盟 电脑使用教程 2024-04-28 20:34:42 0
  在Linux系统中,如果要扩展磁盘容量,可以新建虚拟磁盘空间。新建虚拟磁盘重启后就能生效了,当然如果你有什么重要的在执行的任务,而不想重启,也是有办法的。本文就来介绍一下Linux如何在VMware下扩展磁盘。   1:VMware虚拟磁盘扩容   如下所示,VMware虚拟磁盘扩容后,使用fdisk -l看不到任何变化   [root@localhost ~]# fdisk -l   Disk /dev/sda: 171.7 GB, 171798691840 bytes   255 heads, 63 sectors/track, 20886 cylinders   Units = cylinders of 16065 * 512 = 8225280 bytes   Device Boot Start End Blocks Id System   /dev/sda1 * 1 13 104391 83 Linux   /dev/sda2 14 15665 125724690 8e Linux LVM   /dev/sda3 15666 15795 1044225 83 Linux   /dev/sda4 15796 20886 40893457+ 83 Linux   Disk /dev/dm-0: 126.6 GB, 126600871936 bytes   255 heads, 63 sectors/track, 15391 cylinders   Units = cylinders of 16065 * 512 = 8225280 bytes   Disk /dev/dm-0 doesn‘t contain a valid partition table   Disk /dev/dm-1: 2113 MB, 2113929216 bytes   255 heads, 63 sectors/track, 257 cylinders   Units = cylinders of 16065 * 512 = 8225280 bytes   Disk /dev/dm-1 doesn’t contain a valid partition table Linux VMware下扩展磁盘   方法1:echo 1 》 /sys/class/scsi_device/device/rescan   [root@localhost ~]# cd /sys/class/scsi_disk/   [root@localhost scsi_disk]# ls   0:0:0:0   [root@localhost scsi_disk]# cd 0\:0\:0\:0/   [root@localhost 0:0:0:0]# echo ‘1’ 》 device/rescan   [root@localhost 0:0:0:0]# fdisk -l   Disk /dev/sda: 173.9 GB, 173946175488 bytes   255 heads, 63 sectors/track, 21147 cylinders   Units = cylinders of 16065 * 512 = 8225280 bytes   Device Boot Start End Blocks Id System   /dev/sda1 * 1 13 104391 83 Linux   /dev/sda2 14 15665 125724690 8e Linux LVM   /dev/sda3 15666 15795 1044225 83 Linux   /dev/sda4 15796 20886 40893457+ 83 Linux   Disk /dev/dm-0: 126.6 GB, 126600871936 bytes   255 heads, 63 sectors/track, 15391 cylinders   Units = cylinders of 16065 * 512 = 8225280 bytes   Disk /dev/dm-0 doesn‘t contain a valid partition table   Disk /dev/dm-1: 2113 MB, 2113929216 bytes   255 heads, 63 sectors/track, 257 cylinders   Units = cylinders of 16065 * 512 = 8225280 bytes   Disk /dev/dm-1 doesn’t contain a valid partition table Linux VMware下扩展磁盘   方法2:重新扫描特定的 SCSI Device   echo 1 》 /sys/block/$DEVICE/device/rescan 用sda, sdb, sdc等替换$DEVICE   [root@localhost ~]# echo 1 》 /sys/block/sda/device/rescan   2:VMware新增虚拟磁盘   首先找到您的主机总线编号   [root@localhost ~]# grep mpt /sys/class/scsi_host/host?/proc_name   /sys/class/scsi_host/host0/proc_name:mptspi   使用下面命令扫描SCSI总线   [root@localhost ~]# echo “- - -” 》 /sys/class/scsi_host/host0/scan   以上就是Linux如何在VMware下扩展磁盘的介绍了,使用上面的两个步骤扩展磁盘,不需要重启系统,虚拟磁盘就能立即被系统识别。