如何增加Azure VM的硬盤大小

Question

我正在使用類型爲RHEL OS類型的Azure VM。目前我正在使用Standard D3 v2大小的VM。我在虛擬機中只能看到32個硬盤存儲。如何增加硬盤的大小？

Filesystem  Size Used Avail Use% Mounted on 
/dev/sda2  32G 32G 185M 100%/
devtmpfs  6.9G  0 6.9G 0% /dev 
tmpfs   6.9G  0 6.9G 0% /dev/shm 
tmpfs   6.9G 8.4M 6.9G 1% /run 
tmpfs   6.9G  0 6.9G 0% /sys/fs/cgroup 
/dev/sda1  497M 117M 381M 24% /boot 
/dev/sdb1  197G 2.1G 185G 2% /mnt/resource 
tmpfs   1.4G  0 1.4G 0% /run/user/1000 

注意：我正在使用非託管磁盤。

Answer 1

檢查你的操作系統磁盤如果您的虛擬機使用Azure的資源管理器（ARM），你可以調整操作系統的磁盤或內的數據磁盤創建新的Azure門戶。

1. 導航到您要調整磁盤大小的Azure資源管理器虛擬機。
2. 從Azure門戶關閉虛擬機。等到它完全關閉（取消分配）。
3. 在「設置」選項卡中選擇「磁盤」（如下圖所示）。

Disks settings blade

選擇OS或數據磁盤，你想以調整大小。

在新刀片上，輸入新的磁盤大小（每個磁盤最大1023GB或1TB）（如下圖所示）。

Change disk size

點擊「保存」在上面。

再次啓動虛擬機。

就是這樣！您可以登錄到VM並檢查是否有新的選定磁盤大小。

Answer 2

所以基本上按照這篇文章：https://docs.microsoft.com/en-us/azure/virtual-machines/linux/expand-disks

az vm deallocate --resource-group myResourceGroup --name myVM 
az disk list \ 
    --resource-group myResourceGroup \ 
    --query '[*].{Name:name,Gb:diskSizeGb,Tier:accountType}' \ 
    --output table 
az disk update \ 
    --resource-group myResourceGroup \ 
    --name myDataDisk \ 
    --size-gb 200 
az vm start --resource-group myResourceGroup --name myVM 

非託管磁盤：
https://blogs.msdn.microsoft.com/cloud_solution_architect/2016/05/24/step-by-step-how-to-resize-a-linux-vm-os-disk-in-azure-arm/

Answer 3

根據你的描述，我在我的實驗室測試，我測試的Red Hat Enterprise Linux Server release 7.3 (Maipo)。

注意：當你沒有它時，我強烈建議你可以備份你的OS VHD。如果 確實失敗，則無法啓動虛擬機。

1.在Azure Portal上停止虛擬機。

2.使用Azure CLI增加操作系統磁盤。

az vm update -g shui -n shui --set storageProfile.osDisk.diskSizeGB=100 

3.啓動您的VM和ssh到您的虛擬機。您可以檢查df -h和fdisk -l。 /dev/sda2不會增加到100GB。您需要按照以下命令進行操作。

sudo -i 

[root@shui ~]# fdisk /dev/sda 

WARNING: DOS-compatible mode is deprecated. It's strongly recommended to 
     switch off the mode (command 'c') and change display units to 
     sectors (command 'u'). 

Command (m for help): p 

Disk /dev/sda: 53.7 GB, 53687091200 bytes 
255 heads, 63 sectors/track, 6527 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: 0x0001461e 

    Device Boot  Start   End  Blocks Id System 
/dev/sda1 *   1   64  512000 83 Linux 
Partition 1 does not end on cylinder boundary. 
/dev/sda2    64  3917 30944256 83 Linux 

Command (m for help): u 
Changing display/entry units to sectors 

Command (m for help): p 

Disk /dev/sda: 53.7 GB, 53687091200 bytes 
255 heads, 63 sectors/track, 6527 cylinders, total 104857600 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: 0x0001461e 

    Device Boot  Start   End  Blocks Id System 
/dev/sda1 *  2048  1026047  512000 83 Linux 
Partition 1 does not end on cylinder boundary. 
/dev/sda2   1026048 62914559 30944256 83 Linux 

Command (m for help): d 
Partition number (1-4): 1 

Command (m for help): n 
Command action 
    e extended 
    p primary partition (1-4) 
p 
Partition number (1-4): 1 
First sector (63-104857599, default 63): 64 
Last sector, +sectors or +size{K,M,G} (64-1026047, default 1026047): 
Using default value 1026047 

Command (m for help): p 

Disk /dev/sda: 53.7 GB, 53687091200 bytes 
255 heads, 63 sectors/track, 6527 cylinders, total 104857600 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: 0x0001461e 

    Device Boot  Start   End  Blocks Id System 
/dev/sda1    64  1026047  512992 83 Linux 
Partition 1 does not end on cylinder boundary. 
/dev/sda2   1026048 62914559 30944256 83 Linux 

Command (m for help): wq 
The partition table has been altered! 

Calling ioctl() to re-read partition table. 

WARNING: Re-reading the partition table failed with error 16: Device or resource busy. 
The kernel still uses the old table. The new table will be used at 
the next reboot or after you run partprobe(8) or kpartx(8) 
Syncing disks. 
[root@shui ~]# fdisk -l /dev/sda 

Disk /dev/sda: 53.7 GB, 53687091200 bytes 
255 heads, 63 sectors/track, 6527 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: 0x0001461e 

    Device Boot  Start   End  Blocks Id System 
/dev/sda1    1   64  512992 83 Linux 
Partition 1 does not end on cylinder boundary. 
/dev/sda2    64  3917 30944256 83 Linux 

4.重新啓動你的VM

5.SSH你的VM和調整文件系統。現在

xfs_growfs -d /dev/sda2 

，你可以用df -h

[root@shui ~]# df -h 
Filesystem  Size Used Avail Use% Mounted on 
/dev/sda2  100G 1.7G 98G 2%/