wafl_hya_sizer
This table is for exporting Automated Working-set Analyzer (AWA) statistics. AWA is an ONTAP capability that estimates the Flash Pool cache size and estimates the cache hit rates across reads and writes. Detailed statistic values of an AWA instance enabled on a specific aggregate are available here.
Classic Object: wafl_hya_sizer
Table Row IDs
ID Format | Aggregation Type | Comment |
---|---|---|
{instance_name} |
(not applicable) |
This represents the construction of the row ID field, which is a single unique string that identifies a row. |
Properties
This section describes the mapping between classic (ONTAPI) string counter names and REST property names.
Classic String Counter | REST Property | Description |
---|---|---|
node_name |
node.name |
System node name |
aggr_name |
aggregate.name |
Name of the aggregate. |
Counters
This section describes the mapping between classic (ONTAPI) numeric counter names and REST counter names.
Classic Numeric Counter | REST Counter | Description |
---|---|---|
version |
version |
Automated Working-set Analyzer (AWA) version. |
start_time |
start_time |
Start time in milliseconds. |
current_time |
current_time |
Current time based on ONTAP internal clock in milliseconds (sk_msecs). |
start_cp_count |
start_cp_count |
CP (Consistency Point) count when the sizer is enabled. |
rstart_time |
relative_start_time |
Relative start time of the scoped interval in milliseconds. |
rstart_cp_count |
relative_start_cp_count |
CP (Consistency Point) count when the sizer is started relative to the beginning |
total_intervals |
total_intervals |
Total number of intervals since the sizer was enabled including the current one. |
overwrite_cp_delta |
overwrite_cp_delta |
The histogram of CP (Consistency Point) count delta between overwrites. |
hash_max_unique |
hash_max_unique |
Aggregate space max_unique for hashing. |
hash_sampling_factor |
hash_sampling_factor |
Aggregate space hash sampling factor. |
target_pcache_mb |
target_pcache_mb |
Configured target pseudo cache memory in megabytes. |
pcache_mem |
pcache_memory |
Derived memory size during configuration. |
target_sampling_factor |
target_sampling_factor |
Configured target sampling factor. |
derived_sampling_factor |
derived_sampling_factor |
Derived sampling factor. |
pcache_no_of_entries |
pcache_number_of_entries |
Derived number of pseudo cache entries which is the same as the number of cached |
incore_intervals |
incore_intervals |
Total incore intervals. |
interval_msec |
interval_msec |
Interval length in milliseconds. |
num_disks |
number_disks |
Number of disks. |
sync_with_stats_zero |
sync_with_stats_zero |
If the value is one, the Automated Working-set Analyzer (AWA) interval resets |
enable_rc_after_write |
enable_rc_after_write |
If the value is one, the option of Read-cache After Write is enabled. |
vvol_stats |
vvol_stats |
Collect per-volume statistics. |
debug_level |
debug_level |
Debug Level. |
scope_interval |
scope_interval |
Number of intervals of the sliding window scope. |
scope_phaseout |
scope_phase_out |
If the value is 1, AWA phases out old accumulations from the histograms. |
cache_mode |
cache_mode |
Automated Working-set Analyzer (AWA) cache mode: normal, read-cache only, write- |
interval_info |
interval_info |
Interval Information. |
lookup_type_mismatch |
lookup_type_mismatch |
Number of type mismatches when lookup finds an entry. |
entry_matched |
entry_matched |
Number of pseudo cache entry lookup attempts. For random-hash-sampled cases, |
entry_sampled |
entry_sampled |
Number of pseudo cache hashed Volume Block Number (VBN) sampled based on |
wc_flagged |
wc_flagged |
Number of buffers flagged for write-caching after check for random write at |
can_wc_dirty |
can_wc_dirty |
Number of buffers that can be write-cached at write-allocation time. |
cant_wc_dirty |
cant_wc_dirty |
Number of buffers that cannot be write-cached at write-allocation time. |
wc_overwrite |
wc_overwrite |
Number of write-cached blocks being overwritten. |
long_chain |
long_chain |
Number of reads with buffer count long enough to go to hard disk drives (HDD) |
wc_ins_for_destage |
wc_ins_for_destage |
Number of Automated Working-set Analyzer (AWA) write-cached block inserts for |
rc_after_write |
rc_after_write |
Number of buffers flagged for read cache after write. |
cache_rej_reason_dist_FP |
cache_reject_reason_dist_fp |
Automated Working-set Analyzer (AWA) pseudo cache insert reject reason |
cache_rej_reason_dist |
cache_reject_reason_dist |
Automated Working-set Analyzer (AWA) pseudo cache insert reject reason |
aggrwide_regular_stats |
aggregate_wide_regular_stats |
Automated Working-set Analyzer (AWA) aggregate-wide regular statistics for the |
aggrwide_cache_stats |
aggregate_wide_cache_stats |
Automated Working-set Analyzer (AWA) aggregate-wide cache statistics for the |
aggrwide_cache_interarrival_stats |
aggregate_wide_cache_interarrival_stats |
Automated Working-set Analyzer (AWA) aggregate-wide interarrival distribution |
regular_stats |
regular_stats |
Automated Working-set Analyzer (AWA) per-interval regular statistics for the |
cache_stats |
cache_stats |
Automated Working-set Analyzer (AWA) per-interval pseudo cache statistics for |
cache_interarrival_stats |
cache_interarrival_stats |
Automated Working-set Analyzer (AWA) pseudo cache interarrival distribution for |
Property/Counter Content Changes
This section describes any output value differences between the classic (ONTAPI) string counter and the respective REST property. It also describes array label name changes between classic array counters and respective REST array counters.
REST Counter | Description |
---|---|
aggregate_wide_regular_stats |
The labels have changed from "Free overwrite" to "free_overwrite". |
aggregate_wide_cache_stats |
The labels have changed from "rd_rc_L0_interval" to "rd_rc_l0_interval". |
regular_stats |
The labels have changed from "Free overwrite" to "free_overwrite". |
cache_stats |
The labels have changed from "rd_rc_L0_interval" to "rd_rc_l0_interval". |
Table Aliases
This section describes aliases for aggregated tables.