1、发现磁盘 新添加磁盘后,虚拟机需要重启,惠普服务器需要给这块盘重新做下raid,才可以识别到。 2、查看磁盘:fdisk -l [iyunv@zhouqixiang ~]# fdisk -l Disk /dev/sda: 88.0 GB, 87960846336 bytes 255 heads, 63 sectors/track, 10693 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00057c82 Device Boot Start End Blocks Id System /dev/sda1 * 1 1306 10485760 83 Linux /dev/sda2 1306 2611 10484736 82 Linux swap / Solaris /dev/sda3 2611 6683 32709677+ 83 Linux /dev/sda4 6684 10693 32210325 83 Linux Disk /dev/sdb: 10.7 GB, 10737418240 bytes 255 heads, 63 sectors/track, 1305 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x4d3ea151 Device Boot Start End Blocks Id System Disk /dev/mapper/disknew-lv01: 64.4 GB, 64424509440 bytes 255 heads, 63 sectors/track, 7832 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 如上,/dev/sdb就是新加的磁盘。 3、格式化磁盘 按tab补全键,可以看到有如下几种格式化命令 [iyunv@zhouqixiang ~]# mkfs.ext mkfs.ext2 mkfs.ext3 mkfs.ext4 mkfs.ext4dev [iyunv@zhouqixiang ~]# mkfs.ext4 /dev/sdb mke2fs 1.41.12 (17-May-2010) /dev/sdb is entire device, not just one partition! Proceed anyway? (y,n) y Discarding device blocks: done Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=0 blocks, Stripe width=0 blocks 655360 inodes, 2621440 blocks 131072 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=2684354560 80 block groups 32768 blocks per group, 32768 fragments per group 8192 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632 Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 22 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. 格式化完成。 4、挂载磁盘 a、直接通过磁盘编号,编辑/etc/fstab,添加如下红色一行 [iyunv@zhouqixiang ~]# vim /etc/fstab # # /etc/fstab # Created by anaconda on Thu Mar 13 10:11:00 2014 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # UUID=1875994b-151d-407b-97f2-035f2f52e386 / ext4 defaults 1 1 UUID=25b811f2-37fa-4a87-bd1b-64e1e6de6c91 swap swap defaults 0 0 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 /dev/disknew/lv01 /opt/lv01 ext4 defaults 1 2 /dev/sdb /home/sdb ext4 defaults 0 0 b、通过UUID挂载,查看磁盘UUID: [iyunv@zhouqixiang ~]# blkid /dev/sdb /dev/sdb: UUID="92242649-791e-412a-a5c4-5c3cb4b13f76" TYPE="ext4" 编辑/etc/fstab,添加如下红色一行 [iyunv@zhouqixiang ~]# vim /etc/fstab # # /etc/fstab # Created by anaconda on Thu Mar 13 10:11:00 2014 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # UUID=1875994b-151d-407b-97f2-035f2f52e386 / ext4 defaults 1 1 UUID=25b811f2-37fa-4a87-bd1b-64e1e6de6c91 swap swap defaults 0 0 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 /dev/disknew/lv01 /opt/lv01 ext4 defaults 1 2 UUID=92242649-791e-412a-a5c4-5c3cb4b13f76 /home/sdb ext4 defaults 0 0 创建磁盘挂载目录: [iyunv@zhouqixiang ~]# mkdir /home/sdb 5、重新读取/etc/fstab,挂载所有写入到配置文件里的磁盘:mount -a 查看当前所有文件系统可用空间和使用情况:df -h [iyunv@zhouqixiang ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 9.9G 3.0G 6.4G 32% / tmpfs 1.9G 260K 1.9G 1% /dev/shm /dev/mapper/disknew-lv01 60G 180M 56G 1% /opt/lv01 /dev/sr0 4.0G 4.0G 0 100% /media/CentOS_6.3_Final [iyunv@zhouqixiang ~]# mount -a [iyunv@zhouqixiang ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 9.9G 3.0G 6.4G 32% / tmpfs 1.9G 260K 1.9G 1% /dev/shm /dev/mapper/disknew-lv01 60G 180M 56G 1% /opt/lv01 /dev/sr0 4.0G 4.0G 0 100% /media/CentOS_6.3_Final /dev/sdb 9.9G 151M 9.2G 2% /home/sdb
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