What Are the Restrictions on Using BMSs?
- External hardware devices (such as USB devices, bank U key, external hard disks, and dongle) cannot be directly loaded.
- Out-of-band management is not supported. Your BMSs are managed and maintained by HUAWEI CLOUD.
- Live migration is not supported. If a server is faulty, services will be affected. You are advised to deploy your service in a cluster or in primary/standby mode to ensure high availability.
- You cannot create a raw server with no OS, that is, a BMS must have an OS.
- The OSs of BMSs cannot be changed.
- The OSs of Windows BMSs using public images are activated by default. The virtual OSs installed on the BMSs must be activated manually.
- You cannot configure the CPU or memory when creating a BMS and cannot expand capacities of the CPU, memory, or local disks after the BMS is created. Only the EVS disk capacity can be expanded.
- Only EVS disks whose device type is SCSI can be attached to a BMS.
- BMSs using some flavors or images cannot have EVS disks attached because the servers do not have SDI iNICs or for other reasons.
- Do not delete or modify built-in plug-ins of the image, such as Cloud-Init and bms-network-config. Otherwise, BMS basic functions will be affected.
- If you choose to assign an IP address automatically when creating a BMS, do not change the private IP address of the BMS after the BMS is provisioned. Otherwise, the IP address may conflict with that of another BMS.
- BMSs do not support bridge NICs which will cause network interruptions.
- Do not upgrade the OS kernel. Otherwise, the hardware driver may be incompatible with the BMS, adversely affecting BMS reliability.
Parent topic: General FAQs
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