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Redesign failover standby management

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Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
This commit is contained in:
Robert Baldyga
2021-12-17 09:23:37 +01:00
parent 4333f5f62c
commit 63bab9584c
11 changed files with 481 additions and 203 deletions
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29
casadm/cas_lib.h
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@@ -204,6 +204,31 @@ int get_core_info(int fd, int cache_id, int core_id, struct kcas_core_info *info
int remove_core(unsigned int cache_id, unsigned int core_id,
bool detach, bool force_no_flush);
/**
* @brief initialize failover standby cache instance
*
* @param cache_id cache instance identifier
* @param line_size cache line size
* @param cache_device path to caching device
* @param force discard pre-existing metadata
*
* @return 0 upon successful detach, 1 upon failure
*/
int standby_init(int cache_id, ocf_cache_line_size_t line_size,
const char *cache_device, int force);
/**
* @brief load failover standby cache instance
*
* @param cache_id cache instance identifier
* @param line_size cache line size
* @param cache_device path to caching device
*
* @return 0 upon successful detach, 1 upon failure
*/
int standby_load(int cache_id, ocf_cache_line_size_t line_size,
const char *cache_device);
/**
* @brief detach caching device from failover standby cache instance
*
@@ -211,7 +236,7 @@ int remove_core(unsigned int cache_id, unsigned int core_id,
*
* @return 0 upon successful detach, 1 upon failure
*/
int failover_detach(int cache_id);
int standby_detach(int cache_id);
/**
* @brief activate failover standby cache instance
@@ -221,7 +246,7 @@ int failover_detach(int cache_id);
*
* @return 0 upon successful detach, 1 upon failure
*/
int failover_activate(int cache_id, const char *cache_device);
int standby_activate(int cache_id, const char *cache_device);
/**
* @brief remove inactive core device from a cache