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如何在正在运行的服务器上安装第二个 2TB 硬盘？

tag-icon • tag-icon partitioning mount hard-drive raid
如何在正在运行的服务器上安装第二个 2TB 硬盘？

我有一台配备 2x2TB 的服务器，但我只能访问和安装一个 2TB 磁盘。我不确定如何在运行的服务器上安装第二个 2TB 磁盘（空的）而不丢失第一个 2TB 的数据。

输出sudo fdisk -l：

WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util
fdisk doesn't support GPT. Use GNU Parted.


Disk /dev/sda: 2000.4 GB, 2000398934016 bytes 255 heads, 63
sectors/track, 243201 cylinders, total 3907029168 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
Disk identifier: 0x00000000

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1  3907029167  1953514583+  ee  GPT

WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util
fdisk doesn't support GPT. Use GNU Parted.


Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes 255 heads, 63
sectors/track, 243201 cylinders, total 3907029168 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
Disk identifier: 0x00000000

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1  3907029167  1953514583+  ee  GPT

Disk /dev/md3: 1978.9 GB, 1978886193152 bytes 2 heads, 4
sectors/track, 483126512 cylinders, total 3865012096 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
Disk identifier: 0x00000000

Disk /dev/md3 doesn't contain a valid partition table

Disk /dev/md2: 21.0 GB, 20970405888 bytes 2 heads, 4 sectors/track,
5119728 cylinders, total 40957824 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 Disk identifier:
0x00000000

Disk /dev/md2 doesn't contain a valid partition table

输出df -h：

Filesystem      Size  Used Avail Use% Mounted on
rootfs           20G  4.2G   14G  23% /
/dev/root        20G  4.2G   14G  23% /
devtmpfs        7.9G  4.0K  7.9G   1% /dev
none            1.6G  284K  1.6G   1% /run
none            5.0M     0  5.0M   0% /run/lock
none            7.9G     0  7.9G   0% /run/shm
/dev/md3        1.8T  416G  1.3T  25% /home

sudo mdadm --detail /dev/md3 的输出

/dev/md3:
        Version : 0.90
  Creation Time : Wed Jul 13 11:34:23 2016
     Raid Level : raid1
     Array Size : 1932506048 (1842.98 GiB 1978.89 GB)
  Used Dev Size : 1932506048 (1842.98 GiB 1978.89 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 3
    Persistence : Superblock is persistent

  Intent Bitmap : Internal

    Update Time : Sat Oct 29 12:30:25 2016
          State : active
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

           UUID : 0fe79156:bfd477c3:a4d2adc2:26fd5302
         Events : 0.15411

    Number   Major   Minor   RaidDevice State
       0       8        3        0      active sync   /dev/sda3
       1       8       19        1      active sync   /dev/sdb3

答案1

您没有指定打算如何使用此磁盘。附加数据或 /home？还是 RAID 的一部分？（steeldriver 提出了一个很好的问题）。

如果您只想将其用作额外的存储空间......

如果第二块硬盘确实是空的（它已经有 gpt 分区表），则您需要在尝试挂载它之前在其上创建一个分区。从仪表板启动 gparted。等待它询问您的磁盘。选择 sdb（应该是您的第二块硬盘）。确认没有现有分区。在 EXT4 中创建一个新分区并命名。然后右键单击新创建的分区并选择 MOUNT。这应该可以快速启动。然后了解如何将其添加到您的 /etc/fstab 文件中。

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