BioNotifyUpgradePrepare
Function Definition
Notifies the system of upgrade preparations. After this interface is invoked, the BoostIO read/write cache service is stopped, and the cached data is gradually evicted to the back-end storage. Subsequent front-end I/Os are directly written to the back-end storage.
Implementation
CResult BioNotifyUpgradePrepare(uint64_t tenantId)
Parameters
Parameter |
Data Type |
Input/Output |
Description |
|---|---|---|---|
tenantId |
uint64_t |
Input |
Tenant ID. |
Return Values
Return Value |
Description |
|---|---|
RET_CACHE_OK |
The operation is successful. |
RET_CACHE_NOT_FOUND |
The cache instance is not found. |
RET_CACHE_NOT_READY |
The BoostIO service is not ready. |
RET_CACHE_NEED_RETRY |
A retry is required. |
RET_CACHE_ERROR |
The operation failed. |
Parent topic: API Reference