Disks

Getting started with EVS

• EVS Basics and Disk Types
• EVS Billing

Purchasing and using an EVS disk

Purchasing and Using an EVS Disk

Using a shared EVS disk

Using a Shared EVS Disk

Expanding capacity of an EVS disk

Expanding Capacity of an EVS Disk

EVS snapshot

EVS Snapshots

EVS recycle bin

EVS Recycle Bin

General

• Can EVS Disks Be Used Directly for Storage?
• Can I Change the AZ of My Disk?
• Can I Change the Disk Type, Device Type, or Sharing Attribute of My Disk?
• How Can I Migrate Data from an EVS Disk?
• Will I Lose My Disk Data If I Reinstall ECS OS, Change the OS, or Change the ECS Specifications?
• Why Do Some of My EVS Disks Not Have WWN Information?
• How Can I Upload Files to My EVS Disk?

Billing

• How Can I Stop Being Billed for My Disk?
• Will I Be Billed If I Have Purchased an EVS Disk But Not Used It?
• How Can I Delete or Unsubscribe from a Yearly/Monthly Disk?
• Can I Recover My Disk Data If the Disk Is Unsubscribed from, Deleted by Mistake, or Released After the Retention Period Ends?
• Will My EVS Disk Be Unsubscribed or Deleted When I Unsubscribe from or Delete Its Server?

Capacity expansion

• Can I Reduce or Temporarily Expand the Disk Capacity?
• Will My Disk Data Be Lost After I Expand the Disk Capacity?
• Do I Need to Restart the Server After Expanding the Disk Capacity?
• Do I Need to Detach an EVS Disk Before Expanding Its Capacity?
• Why Did My Disk Capacity Remain Unchanged on the Server After Capacity Expansion?
• What Can't I Expand Capacity for My Disk?
• How Do I Extend the File System of an Unpartitioned Data Disk in Linux?

Attachment

• Why Can't I View the Attached Data Disk on the Server?
• Why Can't I Attach My Disk to a Server?
• Can I Attach a Disk to Multiple Servers?
• Can I Attach a Disk to a Server in Another AZ?
• Can I Switch Between System Disks and Data Disks?
• What Should I Do If a Linux EVS Disk Is Attached to a Windows Server?
• Can I Change the Function of a System Disk or Data Disk Purchased Along with a Server?
• How Do I Obtain My Disk Device Name in the ECS OS Using the Device Identifier Provided on the Console?

Detachment

• If I Detach a Disk, Will I Lose the Data on My Disk?
• Why Can't I Detach My Disk?

Deletion

• How Can I Recover Data from a Disk That Was Accidentally Deleted?
• Why Can't I Delete My Disk?

Capacity

• What Is the Maximum Capacity Supported for the System and Data Disks?
• What Should I Do If My Disk Starts to Run Out of Space?
• What Can I Do If the Capacity of My Disk Reaches the Maximum But I Still Need More Space?
• How Can I View My Disk Usage?
• Can I Transfer the Data Disk Capacity to a System Disk?
• Why the Space of My New Disk Is Full After I Uploaded Only 500 MB of Files to the Disk?

Performance

• How Can I Test My Disk Performance?
• Why Does My Disk Performance Test Using Fio Have Incorrect Results?
• How Can I Handle a Slowdown in Disk Read/Write Speed and Increased I/O?
• Why My Disk's Read IOPS Can't Reach the Theoretical Maximum IOPS When the Disk I/O Usage Is Almost 100%?

Sharing

• Do I Have to Deploy a Cluster to Use Shared Disks?
• How Many Servers Can I Attach a Shared Disk to?
• Can a Shared Disk Be Attached to Servers That Belong to Different Accounts?
• Can I Attach a Shared Disk to Servers Running Different OSs?

Snapshot

• What Are the Typical Causes of a Snapshot Creation Failure?
• Can I Create Snapshots for Multiple Disks at a Time?
• Why Can't I Roll Back My Disk Data from a Snapshot?
• Can I Roll Back the Data from a Snapshot After Reinstalling the OS or Formatting the Disk?
• Do Snapshots Take Space on the Disk?
• Can I Replicate Snapshots to Other Regions or Accounts?
• Can I Use a Snapshot to Create a Disk and Roll Back the Snapshot at Almost the Same Time?

Backup

• Do I Need to Stop the Server Before Performing a Backup?
• Can I Back Up and Restore My EVS Disk to a Different Region?
• How Do I View My Backup Data?