What Are the Differences Between System Disks and Data Disks?
- A system disk runs the server OS. It is like drive C in a PC.
When a server is created, a system disk is automatically purchased and attached. You cannot purchase a system disk separately. The maximum size of a system disk is 1,024 GiB.
- Data disks store the server data. They are like drive D, drive E, and drive F in a PC.
Data disks can be purchased during or after the server purchase. If you purchase data disks during the server purchase, the system will automatically attach the data disks to the server. If you purchase data disks after the server purchase, you need to manually attach the data disks. The maximum size of a data disk is 32,768 GiB.
If one system disk already meets your business needs, you do not need to purchase data disks. As your business grows, you can purchase data disks when needed.
If the disk paths in your service systems cannot be changed or are difficult to change, you are advised to purchase data disks according to your system planning.
General FAQs
- How Do I Start Using a Newly Purchased Disk?
- Can EVS Disks Be Used Directly for Storage?
- Can EVS Disks Be Used Alone?
- How Can I View My Disk Details?
- Can I Change the AZ of My Disk?
- Can I Change the Disk Type, Device Type, or Sharing Attribute of My Disk?
- What Should I Do If an Error Occurs on My EVS Disk?
- How Can I Obtain ECS NIC Information?
- Why Do Some of My EVS Disks Not Have WWN Information?
- How Can I Migrate Data from an EVS Disk?
- What Are the Differences Between System Disks and Data Disks?
- Will I Lose My Disk Data If I Reinstall ECS OS, Change the OS, or Change the ECS Specifications?
- How Can I Download My EVS Disk Data to a Local PC?
- How Can I Export the Original Data After I Changed My Server OS from Windows to CentOS?
- What Are the Differences Between MBR and GPT Partition Styles?
- What Does the "reserveVolume" Trace Mean in CTS?
- How Can I Upload Files to My EVS Disk?
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