Serial numbers are unique identifiers for cloud disks and local disks in an operating system and can be used to identify and distinguish different disks. Serial numbers can also be used to determine disk IDs. This topic describes how to query the serial numbers of disks and determine the IDs of disks based on serial numbers in Linux and Windows operating systems.
Limits
When you query serial numbers, take note of the following limits:
Serial number query is supported only for disks that are created on and after June 10, 2020.
NoteIf the version of the virtio driver of your Windows instance is earlier than 58017, you must update the driver version before you query serial numbers. For more information, see Update Red Hat virtio drivers of Windows instances.
Serial number query is supported only for I/O optimized instances.
Query the serial number of a disk
Linux
Connect to an ECS instance.
For information about the connection methods, see Connection method overview.
Run the
lsblkcommand to query the names of the block storage devices that are attached to an instance.[testuser@ecs ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT vdb 254:16 0 20G 0 disk vda 254:0 0 40G 0 diskRun the following command to query the serial number of a block storage device:
udevadm info --query=all --name=<Device name> | grep ID_SERIALThe following code shows how to query the serial number of the /dev/vda device:
[testuser@ecs ~]# udevadm info --query=all --name=/dev/vda | grep ID_SERIAL E: ID_SERIAL=bp1d4foh3ef8bntl****
Windows
Windows Server 2012 or later
Connect to an ECS instance.
For information about the connection methods, see Connection method overview.
Open Windows PowerShell.
Enter PowerShell in the search box next to the Start icon and then click Windows PowerShell.
Run the following command to query the disk corresponding to a logical volume (LV):
Get-CimInstance -ClassName Win32_LogicalDiskToPartition |select Antecedent, Dependent |flSample command output:
PS C:\Users\Administrator> Get-CimInstance -ClassName Win32_LogicalDiskToPartition |select Antecedent, Dependent |fl Antecedent : Win32_DiskPartition (DeviceID = "Disk #0, Partition #0") Dependent : Win32_LogicalDisk (DeviceID = "C:") Antecedent : Win32_DiskPartition (DeviceID = "Disk #1, Partition #0") Dependent : Win32_LogicalDisk (DeviceID = "D:")Run the following command to query the serial number of the disk:
Get-Disk |select Number, SerialNumberSample command output:
PS C:\Users\Administrator> Get-Disk |select Number, SerialNumber Number SerialNumber ------ ------------ 1 bp14dzwwr539hzqi**** 0 bp16htuqeqnvlee8****
Operating systems earlier than Windows Server 2012
Connect to an ECS instance.
For information about the connection methods, see Connection method overview.
Open Windows PowerShell.
Enter PowerShell in the search box next to the Start icon and then click Windows PowerShell.
Run the following command to query the disk corresponding to an LV:
Get-WmiObject -Class Win32_LogicalDiskToPartition |select Antecedent, Dependent |flSample command output:
PS C:\Users\Administrator> Get-WmiObject -Class Win32_LogicalDiskToPartition |select Antecedent, Dependent |fl Antecedent : \\ecs\root\cimv2:Win32_DiskPartition.DeviceID="Disk #0, Partition #0" Dependent : \\ecs\root\cimv2:Win32_LogicalDisk.DeviceID="C:"Run the following command to query the serial number of the disk:
Get-WmiObject -Class Win32_PhysicalMedia |select Tag, SerialnumberSample command output:
PS C:\Users\Administrator> Get-WmiObject -Class Win32_PhysicalMedia |select Tag, Serialnumber Tag Serialnumber --- ------------ \\.\PHYSICALDRIVE0 bp1bet4g35opq6vq****
(Optional) Determine the disk ID by using the serial number
An ID in the d-<Serial number> format is allocated to each disk. After you obtain the serial number of a disk, you can determine the ID of the disk and find the disk in the Elastic Compute Service (ECS) console based on the serial number.
For example, if the serial number of a disk is bp1gks8z0fh3m1z9****, the disk ID that is displayed in the ECS console is d-bp1gks8z0fh3m1z9****.
