• Elastic Volume Service

evs
  1. Help Center
  2. Elastic Volume Service
  3. User Guide
  4. FAQs
  5. Expansion
  6. Do I Need to Restart the Server After Expanding the Disk Capacity?

Do I Need to Restart the Server After Expanding the Disk Capacity?

The answer varies depending on your expansion scenario.

  • If you expand an In-use disk, that is, the disk is not detached from its server before expansion, see the following: (The conditions for system disks and data disks are the same.)
    • When the server OS meets the expansion requirements, the server does not need a restart.
    • When the server OS fails to meet the expansion requirements, the server needs a restart to make the expansion take effect.
  • If you expand an Available disk, that is, the disk is detached from its server before expansion, see the following: (The conditions for system disks and data disks are different.)
    • Because a system disk cannot be detached while its server is running, the server must have been stopped before the system disk expansion.
    • A data disk can be detached while its server is running or stopped. For details, see the following operations:
      • ECS

        Detach an EVS disk online. For details, see Storage > Detaching an EVS Disk from a Running ECS in the Elastic Cloud Server User Guide.

      • BMS

        Currently, SCSI disks can be attached to BMSs and used as data disks. You can detach a data disk either from a running or stopped BMS.

      If a data disk is detached while its server is running, the server does not need a restart after the data disk expansion.