- What's New
-
Service Overview
- DSS Infographics
- What Is DSS?
- Region and AZ
- Storage Pool Types and Performance
- Storage Pool Capacity Description
- DSS Disks
- DSS Three-Copy Redundancy
- Device Types and Usage Instructions
- Shared Disks and Usage Instructions
- Disk Encryption
- Disk Backup
- DSS and Other Services
- Billing
- Permissions
- Constraints
- Change History
-
Getting Started
- Operation Procedure
- Step 1: Apply for a Storage Pool
- Step 2: Create a Disk
- Step 3: Attach a Disk
-
Step 4: Initialize a Data Disk
- Introduction to Data Disk Initialization Scenarios and Partition Styles
- Initializing a Data Disk in Windows (Windows Server 2008)
- Initializing a Data Disk in Windows (Windows Server 2016)
- Initializing a Data Disk in Linux (fdisk)
- Initializing a Data Disk in Linux (parted)
- Initializing a Data Disk Greater Than 2 TB in Windows (Windows Server 2008)
- Initializing a Data Disk Greater Than 2 TB in Windows (Windows Server 2012)
- Initializing a Data Disk Greater Than 2 TB in Linux (parted)
- Change History
-
User Guide
- Permissions Management
- Storage Pool Management
-
Disk Management
- Detaching a Disk
- Attaching an Existing Disk
- Deleting a Disk
-
Expanding the Capacity of a Disk
- Introduction to Expansion Scenarios
- Expanding an In-use Disk
- Expanding an Available Disk
- Extending Partitions and File Systems on Windows
- Extending Partitions and File Systems on Linux (fdisk)
- Extending Partitions and File Systems on Linux (parted)
- Extending Partitions and File Systems of a SCSI Data Disk on Linux (fdisk)
- Extending Partitions and File Systems of a System Disk on Linux (fdisk)
- Managing Encrypted Disks
- Managing Shared Disks
- Managing Backups
- Change History
- API Reference
-
FAQs
- What Are the Risks of Not Expanding the Storage Pool Capacity?
- How Many Statuses Does a Storage Pool Have?
- How Many Statuses Does a Disk Have?
- Troubleshooting and Impacts on the DSS Usage
- Can I Attach a Disk to Multiple Servers?
- Will Data in the DSS Disk Be Lost When the DSS Disk Is Detached?
- What Should I Do If an Error Occurs on My DSS Disk?
- How Can I Test DSS Disk Performance?
- What Are the Restrictions on Attaching a Disk to an ECS?
- What Are the Precautions for Detaching a Disk from an ECS?
- Why My Disk Cannot Be Attached to a Server?
- Can the Disk Space Usage Be Reduced If I Delete Files on a Server?
- Videos
- Glossary
-
More Documents
-
User Guide (Paris and Amsterdam Regions)
- Introduction
-
Quick Start
- Operation Procedure
- Step 1: Apply for a Storage Pool
- Step 2: Create a Disk
- Step 3: Attach a Disk
-
Initialize a Data Disk
- Introduction to Data Disk Initialization Scenarios and Partition Styles
- Initializing a Data Disk in Windows (Windows Server 2008)
- Initializing a Data Disk in Windows (Windows Server 2016)
- Initializing a Data Disk in Linux (fdisk)
- Initializing a Data Disk in Linux (parted)
- Initializing a Data Disk Greater Than 2 TB in Windows (Windows Server 2008)
- Initializing a Data Disk Greater Than 2 TB in Windows (Windows Server 2012)
- Initializing a Data Disk Greater Than 2 TB in Linux (parted)
- Obtaining the Domain Name
- Obtaining the Region
-
Management
- Storage Pool Management
-
Disk Management
- Detaching a Disk
- Deleting a Disk
-
Expanding the Capacity of a Disk
- Introduction to Expansion Scenarios
- Expanding an In-use Disk
- Expanding an Available Disk
- Performing Post-Expansion Operations for a Windows Disk
- Performing Post-Expansion Operations for a Disk in Linux (fdisk)
- Performing Post-Expansion Operations for a Disk in Linux (parted)
- Performing Post-Expansion Operations for a SCSI Data Disk in Linux (fdisk)
- Performing Post-Expansion Operations for a System Disk in Linux (fdisk)
- Managing an Encrypted Disk
- Managing a Shared Disk
- Managing a Backup
-
FAQs
- What Are the Risks of Not Expanding the Storage Pool Capacity?
- How Many Statuses Does a Storage Pool Have?
- How Many Statuses Does a Disk Have?
- Troubleshooting and Impacts on the DSS Usage
- Can I Attach a Disk to Multiple Servers?
- Will Data in the DSS Disk Be Lost When the DSS Disk Is Detached?
- What Should I Do If an Error Occurs on My DSS Disk?
- What Are the Restrictions on Attaching a Disk to an ECS?
- What Are the Precautions for Detaching a Disk from an ECS?
- Why My Disk Cannot Be Attached to a Server?
- Change History
-
User Guide (Paris and Amsterdam Regions)
- General Reference
Copied.
Expanding an In-use Disk
Scenarios
Currently, disk capacities can be expanded, but cannot be reduced.
Expanding an In-use disk means that the to-be-expanded disk has been attached to a server.
- During such an expansion, the server containing the to-be-expanded disk must be in the Running or Stopped state.
- Shared disks must be expanded when they are in the Available state. For details, see Expanding an Available Disk.
- Currently, only some server OSs support the expansion of In-use disks. Therefore, ensure that your server OS meets the requirements for expanding In-use disks before operation. Table 1 lists the server OSs, including the OS images listed on the Public Images page of the IMS console and others, that support In-use disk expansion.
If the server OS does not support capacity expansion of In-use disks, detach the disk and then expand its capacity. Otherwise, you may need to stop and then start the server after the expansion to make the additional space available.
Table 1 Supported OSs OS
Version
CentOS
7.4 64bit
7.3 64bit
7.2 64bit
6.8 64bit
6.7 64bit
6.5 64bit
Debian
8.6.0 64bit
8.5.0 64bit
Fedora
25 64bit
24 64bit
SUSE
SUSE Linux Enterprise Server 12 SP2 64bit
SUSE Linux Enterprise Server 12 SP1 64bit
SUSE Linux Enterprise Server 11 SP4 64bit
SUSE Linux Enterprise Server 12 64bit
OpenSUSE
42.2 64bit
42.1 64bit
Oracle Linux Server release
7.3 64bit
7.2 64bit
6.8 64bit
6.7 64bit
Ubuntu Server
16.04 64bit
14.04 64bit
14.04.4 64bit
Windows
Windows Server 2008 R2 Enterprise 64bit
Windows Server 2012 R2 Standard 64bit
Windows Server 2016 Standard 64bit
Red Hat Enterprise Linux
7.3 64bit
6.8 64bit
Procedure
- Log in to the management console.
- Choose Dedicated Distributed Storage Service > Disks.
The disk list page is displayed.
- Determine whether to view the server information before expanding the disk.
- If you need to view the server information, perform the following procedure:
- If you do not need to view the server information, perform the following procedure:
- In the disk list, locate the row that contains the target disk and click Expand Capacity in the Operation column.
The expansion page is displayed.
- In the disk list, locate the row that contains the target disk and click Expand Capacity in the Operation column.
- Set the Add Capacity (GB) parameter as prompted and click Next.
- On the Details page, check the disk information again.
- If you do not need to modify the specifications, click Submit to start the expansion.
- If you need to modify the specifications, click Previous to modify parameters.
After the specifications are submitted, the disk list page is displayed.
- In the disk list, view the capacity of the expanded disk.
After the disk status changes from Expanding to In-use, the additional capacity has been added to the disk and the expansion succeeded.
NOTE:
If the disk status is Expanding, you are not allowed to modify the specifications of the ECS where the disk is attached.
- After the capacity expansion has succeeded, perform subsequent operations for the additional space.
The operation method varies depending on the server OS.
- For Windows OSs, see Extending Partitions and File Systems on Windows.
- For Linux OSs,
- If the fdisk partitioning tool will be used, see Extending Partitions and File Systems on Linux (fdisk), Extending Partitions and File Systems of a SCSI Data Disk on Linux (fdisk), or Extending Partitions and File Systems of a System Disk on Linux (fdisk).
- If the parted partitioning tool will be used, see Extending Partitions and File Systems on Linux (parted).
Feedback
Was this page helpful?
Provide feedbackThank you very much for your feedback. We will continue working to improve the documentation.See the reply and handling status in My Cloud VOC.
For any further questions, feel free to contact us through the chatbot.
Chatbot