• debian 8.2 dynamic add disk


    20170628 本次操作是完成虚拟机debian 动态添加磁盘

    安装debian 8.2

    省略

    动态添加硬盘

    vmware 里手动添加一块硬盘

    root@debian1:/sys/devices/pci0000:00# ls -l /sys/class/scsi_host
    总用量 0
    lrwxrwxrwx 1 root root 0 6月 28 15:02 host0 -> ../../devices/pci0000:00/0000:00:07.1/ata1/host0/scsi_host/host0
    lrwxrwxrwx 1 root root 0 6月 28 15:02 host1 -> ../../devices/pci0000:00/0000:00:07.1/ata2/host1/scsi_host/host1
    lrwxrwxrwx 1 root root 0 6月 28 15:02 host2 -> ../../devices/pci0000:00/0000:00:10.0/host2/scsi_host/host2

    刷新硬盘文件
    # echo “- - -” > /sys/class/scsi_host/host0/scan
    # echo “- - -” > /sys/class/scsi_host/host1/scan
    # echo “- - -” > /sys/class/scsi_host/host2/scan
    # cat /var/log/messages

    Jun 28 15:05:27 debian1 kernel: [ 1450.116154] scsi 2:0:1:0: Direct-Access VMware, VMware Virtual S 1.0 PQ: 0 ANSI: 2
    Jun 28 15:05:27 debian1 kernel: [ 1450.116177] scsi target2:0:1: Beginning Domain Validation
    Jun 28 15:05:27 debian1 kernel: [ 1450.116682] scsi target2:0:1: Domain Validation skipping write tests
    Jun 28 15:05:27 debian1 kernel: [ 1450.116684] scsi target2:0:1: Ending Domain Validation
    Jun 28 15:05:27 debian1 kernel: [ 1450.116720] scsi target2:0:1: FAST-40 WIDE SCSI 80.0 MB/s ST (25 ns, offset 127)
    Jun 28 15:05:27 debian1 kernel: [ 1450.117917] sd 2:0:1:0: [sdb] 41943040 512-byte logical blocks: (21.4 GB/20.0 GiB)
    Jun 28 15:05:27 debian1 kernel: [ 1450.117947] sd 2:0:1:0: [sdb] Write Protect is off
    Jun 28 15:05:27 debian1 kernel: [ 1450.118029] sd 2:0:1:0: [sdb] Cache data unavailable
    Jun 28 15:05:27 debian1 kernel: [ 1450.118440] sdb: unknown partition table
    Jun 28 15:05:27 debian1 kernel: [ 1450.118663] sd 2:0:1:0: [sdb] Attached SCSI disk
    Jun 28 15:05:27 debian1 kernel: [ 1450.119722] sd 2:0:1:0: Attached scsi generic sg2 type 0
    Jun 28 15:05:30 debian1 kernel: [ 1453.723352] floppy: error -5 while reading block 0
    Jun 28 15:05:30 debian1 kernel: [ 1453.743412] floppy: error -5 while reading block 0

    发现新的硬盘
    root@debian1:/sys/devices/pci0000:00# fdisk -l

    Disk /dev/sdb: 20 GiB, 21474836480 bytes, 41943040 sectors
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes

    之后一定要使用 linux lvm 的方式管理硬盘

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  • 原文地址:https://www.cnblogs.com/ctypyb2002/p/9793146.html
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