Azure Managed Disk对原有的Page Blob进行了一次封装。使得Azure VM的Disk操作变得非常简单。本文将介绍实际操作中针对Manage Disk的一些操作。
一、创建Manage Disk
Manage Disk的创建，可以创建空磁盘，也可以从其他源创建Disk。
1 创建空磁盘
root@hw-surfacebook:~# az disk create -g hwtest -n hwempty01 --size-gb 31 --sku Standard_LRS { Finished .. "accountType": "Standard_LRS", "creationData": { "createOption": "Empty", "imageReference": null, "sourceResourceId": null, "sourceUri": null, "storageAccountId": null }, "diskSizeGb": 31, "encryptionSettings": null, "id": "/subscriptions/xxxx/resourceGroups/hwtest/providers/Microsoft.Compute/disks/hwempty01", "location": "chinanorth", "name": "hwempty01", "osType": null, "ownerId": null, "provisioningState": "Succeeded", "resourceGroup": "hwtest", "tags": {}, "timeCreated": "2017-07-12T09:39:57.982040+00:00", "type": "Microsoft.Compute/disks" }
2 从其他源创建磁盘
可以通过存储账户中Page Blob创建Disk：
root@hw-surfacebook:~# az disk create -g hwfdsk -n hwmd01 --source https://h2portalvhdsn6t2ktgjscst.blob.core.chinacloudapi.cn/vhds/hwfdsk-hwfdsk-2017-06-23.vhd {/ Finished .. "accountType": "Premium_LRS", "creationData": { "createOption": "Import", "imageReference": null, "sourceResourceId": null, "sourceUri": "https://h2portalvhdsn6t2ktgjscst.blob.core.chinacloudapi.cn/vhds/hwfdsk-hwfdsk-2017-06-23.vhd", "storageAccountId": null }, "diskSizeGb": null, "encryptionSettings": null, "id": "/subscriptions/xxxx/resourceGroups/hwfdsk/providers/Microsoft.Compute/disks/hwmd01", "location": "chinanorth", "name": "hwmd01", "osType": null, "ownerId": null, "provisioningState": "Succeeded", "resourceGroup": "hwfdsk", "tags": {}, "timeCreated": "2017-06-23T14:52:46.629909+00:00", "type": "Microsoft.Compute/disks" }
二 复制Disk
Managed Disk的复制就是用Create的命令来实现的：
root@hw-surfacebook:~# az disk create -g hwtest -n mydisk03 --source mydisk02 { Finished .. "accountType": "Premium_LRS", "creationData": { "createOption": "Copy", "imageReference": null, "sourceResourceId": null, "sourceUri": "/subscriptions/xxxx/resourceGroups/hwtest/providers/Microsoft.Compute/disks/mydisk02", "storageAccountId": null }, "diskSizeGb": 31, "encryptionSettings": null, "id": "/subscriptions/xxxx/resourceGroups/hwtest/providers/Microsoft.Compute/disks/mydisk03", "location": "chinanorth", "name": "mydisk03", "osType": null, "ownerId": null, "provisioningState": "Succeeded", "resourceGroup": "hwtest", "tags": {}, "timeCreated": "2017-07-12T09:48:33.620377+00:00", "type": "Microsoft.Compute/disks" }
命令是把mydisk02复制到mydisk03。一般情况下，不指定managed disk的sku，都是Premium_LRS的。
3 跨Resource Group创建managed Disk：
root@hw-surfacebook:~# az disk create -g hwtest -n mydisk04 --source /subscriptions/xxxx/resourceGroups/HWFDSK/providers/Microsoft.Compute/disks/hwmd01 {/ Finished .. "accountType": "Premium_LRS", "creationData": { "createOption": "Copy", "imageReference": null, "sourceResourceId": null, "sourceUri": "/subscriptions/xxxx/resourceGroups/HWFDSK/providers/Microsoft.Compute/disks/hwmd01", "storageAccountId": null }, "diskSizeGb": 31, "encryptionSettings": null, "id": "/subscriptions/xxxx/resourceGroups/hwtest/providers/Microsoft.Compute/disks/mydisk04", "location": "chinanorth", "name": "mydisk04", "osType": null, "ownerId": null, "provisioningState": "Succeeded", "resourceGroup": "hwtest", "tags": {}, "timeCreated": "2017-07-12T10:01:17.520376+00:00", "type": "Microsoft.Compute/disks" }
三 下载Managed Disk
如果想把Managed Disk下载下来，需要通过开放managed Disk的SAS访问权限。具体命令如下：
root@hw-surfacebook:~# az disk grant-access -g hwtest -n mydisk03 --duration-in-seconds 600 {/ Finished .. "accessSas": "https://md-xplvtgf1jcgg.blob.core.chinacloudapi.cn/ttq410wsfkk5/abcd?sv=2016-05-31&sr=b&si=31fc2e57-dcd6-4cf1-ba2a-33fb44d560a4&sig=j2JwhG8Gx51sVwOdm%2BNIPEOfTAWiZsoW82XpEjTcAHA%3D" } 这种情况下，已经Attach到VM的Disk是不能开机的。如果开放了SAS的访问权限，又需要开机，需要把这个权限取消掉。具体命令如下： root@hw-surfacebook:~# az disk revoke-access -g hwtest -n mydisk03 {/ Finished .. "endTime": "2017-07-12T09:56:37.555156+00:00", "error": null, "name": "acdf95b5-d658-4a17-b680-31f48c8b8927", "startTime": "2017-07-12T09:56:37.336370+00:00", "status": "Succeeded" }
四 更改managed Disk的sku
前面提到过，managed disk在不指定sku的情况下，默认都是SSD的。如果需要转换成HDD的Disk，命令如下：
root@hw-surfacebook:~# az disk update -g hwtest -n mydisk03 --sku Standard_LRS { "accountType": "Standard_LRS", "creationData": { "createOption": "Copy", "imageReference": null, "sourceResourceId": null, "sourceUri": "/subscriptions/xxxx/resourceGroups/hwtest/providers/Microsoft.Compute/disks/mydisk02", "storageAccountId": null }, "diskSizeGb": 31, "encryptionSettings": null, "id": "/subscriptions/xxxx/resourceGroups/hwtest/providers/Microsoft.Compute/disks/mydisk03", "location": "chinanorth", "name": "mydisk03", "osType": null, "ownerId": null, "provisioningState": "Succeeded", "resourceGroup": "hwtest", "tags": {}, "timeCreated": "2017-07-12T09:48:33.620377+00:00", "type": "Microsoft.Compute/disks" }
或者在创建的时候就指定SKU：
root@hw-surfacebook:~# az disk create -g hwtest -n mydisk05 --source mydisk04 --sku Standard_LRS {/ Finished .. "accountType": "Standard_LRS", "creationData": { "createOption": "Copy", "imageReference": null, "sourceResourceId": null, "sourceUri": "/subscriptions/xxxx/resourceGroups/hwtest/providers/Microsoft.Compute/disks/mydisk04", "storageAccountId": null }, "diskSizeGb": 31, "encryptionSettings": null, "id": "/subscriptions/xxxx/resourceGroups/hwtest/providers/Microsoft.Compute/disks/mydisk05", "location": "chinanorth", "name": "mydisk05", "osType": null, "ownerId": null, "provisioningState": "Succeeded", "resourceGroup": "hwtest", "tags": {}, "timeCreated": "2017-07-12T10:03:20.170081+00:00", "type": "Microsoft.Compute/disks" }
五 对managed disk做snapshot
root@hw-surfacebook:~# az snapshot create -g hwtest -n hwsnapshot01 --source mydisk01 {/ Finished .. "accountType": "Standard_LRS", "creationData": { "createOption": "Copy", "imageReference": null, "sourceResourceId": null, "sourceUri": "/subscriptions/xxxx/resourceGroups/hwtest/providers/Microsoft.Compute/disks/mydisk01", "storageAccountId": null }, "diskSizeGb": 31, "encryptionSettings": null, "id": "/subscriptions/xxxx/resourceGroups/hwtest/providers/Microsoft.Compute/snapshots/hwsnapshot01", "location": "chinanorth", "name": "hwsnapshot01", "osType": null, "ownerId": null, "provisioningState": "Succeeded", "resourceGroup": "hwtest", "tags": {}, "timeCreated": "2017-07-13T05:31:54.692171+00:00", "type": "Microsoft.Compute/snapshots" }
从Snapshot创建Disk：
root@hw-surfacebook:~# az disk create -g hwtest -n mydisk06 --source hwsnapshot01 {- Finished .. "accountType": "Premium_LRS", "creationData": { "createOption": "Copy", "imageReference": null, "sourceResourceId": null, "sourceUri": "/subscriptions/xxxx/resourceGroups/hwtest/providers/Microsoft.Compute/snapshots/hwsnapshot01", "storageAccountId": null }, "diskSizeGb": 31, "encryptionSettings": null, "id": "/subscriptions/xxxx/resourceGroups/hwtest/providers/Microsoft.Compute/disks/mydisk06", "location": "chinanorth", "name": "mydisk06", "osType": null, "ownerId": null, "provisioningState": "Succeeded", "resourceGroup": "hwtest", "tags": {}, "timeCreated": "2017-07-13T05:33:57.468651+00:00", "type": "Microsoft.Compute/disks" }
五 用已有的managed disk创建VM
有了managed disk，创建VM就非常简单了，用Azure Cli创建的命令如下：
root@hw-surfacebook:~# az vm create -g hwtest -n hwtest06 --attach-os-disk mydisk06 --vnet-name hwtest --subnet Subnet-1 --os-type Linux {- Finished .. "fqdns": "", "id": "/subscriptions/xxxx/resourceGroups/hwtest/providers/Microsoft.Compute/virtualMachines/hwtest06", "location": "chinanorth", "macAddress": "00-17-FA-00-C7-FA", "powerState": "VM running", "privateIpAddress": "10.3.0.5", "publicIpAddress": "139.219.104.221", "resourceGroup": "hwtest" }
总结：
有了managed Disk，很多针对VM Disk的操作变得简单很多。