List of statistics
This page lists all the statistics generated by the Weka system, according to category.

Attribute Cache

Type
Description
Units
GP_GETATTR_CACHE_MISS
Number of general purpose getAttr cache misses per second
Ops/Sec
GP_GETATTR
Number of general purpose getAttr calls per second
Ops/Sec

Block Cache

Type
Description
Units
BUCKET_CACHED_METADATA_BLOCKS
Bucket number of cached metadata blocks
Blocks
BUCKET_CACHED_REGISTRY_L2_BLOCKS
Bucket number of cached registry L2 blocks
Blocks
BUCKET_CACHE_METADATA_HITS
Bucket block cache metadata hits
Queries
BUCKET_CACHE_METADATA_MISSES
Bucket block cache metadata misses
Queries
BUCKET_CACHE_REGISTRY_L2_HITS
Bucket block cache registry L2 hits
Queries
BUCKET_CACHE_REGISTRY_L2_MISSES
Bucket block cache registry L2 misses
Queries
BUCKET_REGISTRY_L2_BLOCKS_NUM
Bucket number of registry L2 blocks
Blocks

Block Writes

Type
Description
Units
BLOCK_FULL_WRITES
Full block writes
Writes
BLOCK_PARTIAL_WRITES
Partial block writes
Writes

Bucket

Type
Description
Units
BUDGET_UNDERFLOW_BLOCKS
Blocks/Sec
CHOKING_LEVEL_ALL
Throttling level applied on all types of IOs
%
CHOKING_LEVEL_NON_MUTATING
Throttling level applied on non-mutating only types of IOs
%
DESTAGED_BLOCKS_COUNT
Blocks/Sec
DESTAGE_COUNT
Destages/Sec
DIR_MOVE_TIME
Ops
EXTENT_BLOCKS_COUNT
Blocks
FREEABLE_LRU_BUFFERS
Buffers
HASH_BLOCKS_COUNT
Blocks
INODE_BLOCKS_COUNT
Blocks
INODE_REFRESHER_QUEUE_LENGTH
Items
JOURNAL_BLOCKS_COUNT
Blocks
JOURNAL_ITERATIONS
Histogram of number of batches of stripes committed in a single request
READS
Number of read operations per second
Ops/Sec
READ_BYTES
Number of bytes read per second
Bytes/Sec
READ_LATENCY
Average latency of READ operations
Microseconds
REGISTRY_L1_BLOCKS_COUNT
Blocks
REGISTRY_L2_BLOCKS_COUNT
Blocks
REGISTRY_SEARCHES_COUNT
Queries/Sec

Bucket Failovers

Type
Description
Units
BUCKET_FAILOVERS
Amount of times swapping from a remote primary node to a secondary
Failovers
INVALID_BUCKET_TERM
Number of times a remote bucket rejected a request becaue the term was invalid
Exceptions
REMOTE_BUCKET_IS_SECONDARY
Number of times a remote bucket reported it is secondary and cannot serve us
Exceptions

Bucket Rebalances

Type
Description
Units
BUCKET_INITS
Number of bucket initializations
Times
BUCKET_INIT_LATENCY_HIST
Milliseconds
BUCKET_INIT_LATENCY
Average latency of bucket initialization
Seconds

CPU

Type
Description
Units
CPU_UTILIZATION
Percentage of the CPU time utilized for handling I/Os
%

Chocking

Type
Description
Units
CHOKING_LEVEL_ALL
Throttling level applied on all types of IOs, both mutating and non-mutating
CHOKING_LEVEL_NON_MUTATING
Throttling level applied on non-mutating only types of IOs

Clients

Type
Description
Units
CLIENTS_CONNECTED
Clients connected
Clients/Sec
CLIENTS_DISCONNECTED
Clients left or were removed
Clients/Sec
CLIENTS_LEFT
Clients left
Clients/Sec
CLIENTS_RECONNECTED
Clients reconnected instead of an old instance of theirs
Clients/Sec
CLIENTS_REMOVED
Clients removed
Clients/Sec

Config

Type
Description
Units
AVERAGE_CHANGES_IN_CHANGESET
Average changes in changeset
Changes/Sec
AVERAGE_CHANGES_IN_GENERATION
Average changes in generation
Changes/Sec
BACKEND_NODE_REJOIN_TIME
Milliseconds
CHANGESET_COMMIT_LATENCY
Average latency of committing a config changeset
Microseconds
CLIENT_NODE_REJOIN_TIME
Milliseconds
GENERATION_COMMIT_LATENCY
Average latency of committing a config generation
Microseconds
HEARTBEAT_PROCESSING_TIME_OLD
Seconds
HEARTBEAT_PROCESSING_TIME
Seconds
LEADER_HEARTBEAT_PROCESSING_TIME_OLD
Seconds
LEADER_HEARTBEAT_PROCESSING_TIME
Seconds
TOTAL_CHANGESETS_COMMITTED
Total number of changesets committed
Change Sets
TOTAL_COMMITTED_CHANGES
Total number of config changes committed
Changes
TOTAL_GENERATIONS_COMMITTED
Number of generations committed per second
Generations

Filesystem OBS

Type
Description
Units
BACKPRESSURED_BUCKETS_IN_FSS
Number of backpressured buckets
Buckets
CONCURRENT_DEMOTES
How many demotes are executed concurrently
Demotes
DEMOTE_EXTENT_OBS_FETCH_BACKPRESSURE
Number of extent BACKPRESSURE fetch operations per second
Ops/Sec
DEMOTE_EXTENT_OBS_FETCH_IMMEDIATE_RELEASE
Number of extent IMMEDIATE_RELEASE fetch operations per second
Ops/Sec
DEMOTE_EXTENT_OBS_FETCH_MANHOLE
Number of extent MANHOLE fetch operations per second
Ops/Sec
DEMOTE_EXTENT_OBS_FETCH_MIGRATE
Number of extent MIGRATE fetch operations per second
Ops/Sec
DEMOTE_EXTENT_OBS_FETCH_POLICY
Number of extent POLICY fetch operations per second
Ops/Sec
DEMOTE_EXTENT_OBS_FETCH_RECLAMATION_REUPLOAD
Number of extent RECLAMATION_REUPLOAD fetch operations per second
Ops/Sec
DEMOTE_EXTENT_OBS_FETCH_STOW
Number of extent STOW fetch operations per second
Ops/Sec
DEMOTE_EXTENT_OBS_FETCH
Number of extent fetch operations per second
Ops/Sec
DEMOTE_WAITING_FOR_SLOT
Average time waiting for a demotion concurrency slot
Microseconds
DESERIALIZED_EXTENTS_WITH_INVALID_BLOBS
Number of deserialized extents with invalid blob id
Extents
DOWNLOADS
Number of promotes operations per second
Ops/Sec
DOWNLOAD_LATENCY
Latency of promote operations
Microseconds
FAILED_DOWNLOADS
Number of failed promotes operations per second
Ops/Sec
FAILED_UPLOADS
Number of failed demotes operations per second
Ops/Sec
OBS_4K_IOPS_READ
Number of object store dedicated 4K read operations per second
Ops/Sec
OBS_BACKPRESSURE_FREED
Number of bytes freed from disk due to backpressure
Bytes/Sec
OBS_BLOB_HEADER_DOWNLOAD_LATENCY
Average latency of blob header download
Microseconds

Frontend

Type
Description
Units
FE_IDLE_CYCLES
Cycles/Sec
FE_IDLE_TIME
Percentage of the CPU time not utilized for handling I/Os on frontend
%

Frontend Encryption

Type
Description
Units
FE_BLOCKS_DECRYPTED
Number of blocks decrypted in the frontend
Blocks
FE_BLOCKS_ENCRYPTED
Number of blocks encrypted in the frontend
Blocks
FE_BLOCK_CRYPTO_LATENCY
Average latency of frontend block crypto
Microseconds
FE_BLOCK_DECRYPT_DURATION
Duration of decryption of blocks in the frontend
Microseconds
FE_BLOCK_ENCRYPT_DURATION
Duration of encryption of blocks in the frontend
Microseconds
FE_FILENAMES_DECRYPTED
Number of filenames decrypted in the frontend
Filenames
FE_FILENAMES_ENCRYPTED
Number of filenames encrypted in the frontend
Filenames
FE_FILENAME_CRYPTO_LATENCY
Average latency of frontend filename crypto
Microseconds
FE_FILENAME_DECRYPT_DURATION
Duration of decryption of filenames in the frontend
Microseconds
FE_FILENAME_ENCRYPT_DURATION
Duration of encryption of filenames in the frontend
Microseconds

Garbage Collection

Type
Description
Units
GC_FREE_SIZE_AFTER_SCAN
GC pool size after the scan ends
Bytes
GC_FREE_SIZE_BEFORE_SCAN
GC pool size before the scan starts
Bytes
GC_SCAN_TIME
GC scan time
Msec
GC_USED_SIZE_AFTER_SCAN
GC used size after the scan ends
Bytes
GC_USED_SIZE_BEFORE_SCAN
GC used size before the scan starts
Bytes

JRPC

Type
Description
Units
JRPC_SERVER_PROCESSING_AVG
Microseconds
JRPC_SERVER_PROCESSING_TIME

Journal

Type
Description
Units
JOURNAL_CURRENT_OPS
Operations currently in journal
Journal Entries
JOURNAL_OPS_IN
Operations added to the journal
Journal Entries/Sec
JOURNAL_OPS_OUT
Operations removed from the journal
Journal Entries/Sec

Memory

Type
Description
Units
RSS_CURRENT
MB
RSS_PEAK
MB

Network

Type
Description
Units
BAD_RECV_CSUM
Number of packets received with a bad checksum
Packets/Sec
CORRUPT_PACKETS
Number of packets received and deemed corrupted
Packets/Sec
DOUBLY_RECEIVED_PACKETS
Number of packets that were received multiple times
Packets/Sec
DROPPED_LARGE_PACKETS
Number of large packets dropped in the socket backend
Packets/Sec
DROPPED_PACKETS
Number of packets received that we dropped
Packets/Sec
ECN_ENCOUNTERED
Number of ECN Encountered packets
Packets/Sec
FAULT_RECV_DELAYED_PACKETS
Number of received packets delayed due to a fault injection
Packets/Sec
FAULT_RECV_DROPPED_PACKETS
Number of received packets dropped due to a fault injection
Packets/Sec
FAULT_SENT_DELAYED_PACKETS
Number of sent packets delayed due to a fault injection
Packets/Sec
FAULT_SENT_DROPPED_PACKETS
Number of sent packets dropped due to a fault injection
Packets/Sec
GOODPUT_RX_RATIO
Percentage of goodput RX packets out of total data packets received
%
GOODPUT_TX_RATIO
Percentage of goodput TX packets out of total data packets sent
%
GW_MAC_RESOLVE_FAILURES
Number of times we failed to ARP resolve the gateway IP
Failures
GW_MAC_RESOLVE_SUCCESSES
Number of times we succeeded to ARP resolve the gateway IP
Successes
NODE_RECONNECTED
Number of reconnections
Reconnects/Sec
PACKETS_PUMPED
Number of packets received in each call to recvPackets
PEER_RTT
RTT per peer node
Microseconds
PORT_RX_BYTES
Number of bytes received
Bytes/Sec
PORT_RX_PACKETS
Number of packets received
Packets/Sec

Object Storage

Type
Description
Units
FAILED_OBJECT_DELETES
Number of failed object deletes per second (any failure reason)
Ops/Sec
FAILED_OBJECT_DOWNLOADS
Number of failed object download per second (any failure reason)
Ops/Sec
FAILED_OBJECT_HEAD_QUERIES
Number of failed object head queries per second (any failure reason)
Ops/Sec
FAILED_OBJECT_OPERATIONS
Total failed operations per second
Ops/Sec
FAILED_OBJECT_UPLOADS
Number of failed object uploads per second (any failure reason)
Ops/Sec
OBJECT_DELETES
Number of object deletes per second
Ops/Sec
OBJECT_DELETE_DURATION
Milliseconds
OBJECT_DELETE_LATENCY
Latency of deleting an object
Microseconds
OBJECT_DOWNLOADS_BACKGROUND
Number of BACKGROUND objects downloaded per second
Ops/Sec
OBJECT_DOWNLOADS_FOREGROUND
Number of FOREGROUND objects downloaded per second
Ops/Sec
OBJECT_DOWNLOADS
Number of objects downloaded per second
Ops/Sec
OBJECT_DOWNLOAD_BYTES_BACKGROUND
Number of BACKGROUND bytes sent to object storage
Bytes/Sec
OBJECT_DOWNLOAD_BYTES_FOREGROUND
Number of FOREGROUND bytes sent to object storage
Bytes/Sec
OBJECT_DOWNLOAD_DURATION
Milliseconds
OBJECT_DOWNLOAD_LATENCY
Latency of downloading an object
Microseconds
OBJECT_DOWNLOAD_SIZE
Bytes
OBJECT_HEAD_DURATION
Milliseconds
OBJECT_HEAD_LATENCY
Latency of deleting an object
Microseconds
OBJECT_HEAD_QUERIES
Number of object head queries per second
Ops/Sec

Operations (NFS)

Type
Description
Units
ACCESS_LATENCY
Average latency of ACCESS operations
Microseconds
ACCESS_OPS
Number of ACCESS operation per second
Ops/Sec
COMMIT_LATENCY
Average latency of COMMIT operations
Microseconds
COMMIT_OPS
Number of COMMIT operation per second
Ops/Sec
CREATE_LATENCY
Average latency of CREATE operations
Microseconds
CREATE_OPS
Number of CREATE operation per second
Ops/Sec
FSINFO_LATENCY
Average latency of FSINFO operations
Microseconds
FSINFO_OPS
Number of FSINFO operation per second
Ops/Sec
GETATTR_LATENCY
Average latency of GETATTR operations
Microseconds
GETATTR_OPS
Number of GETATTR operation per second
Ops/Sec
LINK_LATENCY
Average latency of LINK operations
Microseconds
LINK_OPS
Number of LINK operation per second
Ops/Sec
LOOKUP_LATENCY
Average latency of LOOKUP operations
Microseconds
LOOKUP_OPS
Number of LOOKUP operation per second
Ops/Sec
MKDIR_LATENCY
Average latency of MKDIR operations
Microseconds
MKDIR_OPS
Number of MKDIR operation per second
Ops/Sec
MKNOD_LATENCY
Average latency of MKNOD operations
Microseconds
MKNOD_OPS
Number of MKNOD operation per second
Ops/Sec
OPS
Total number of operations
Ops/Sec

Operations (NFSw)

Type
Description
Units
ACCESS_LATENCY
Average latency of ACCESS operations
Microseconds
ACCESS_OPS
Number of ACCESS operation per second
Ops/Sec
COMMIT_LATENCY
Average latency of COMMIT operations
Microseconds
COMMIT_OPS
Number of COMMIT operation per second
Ops/Sec
CREATE_LATENCY
Average latency of CREATE operations
Microseconds
CREATE_OPS
Number of CREATE operation per second
Ops/Sec
FSINFO_LATENCY
Average latency of FSINFO operations
Microseconds
FSINFO_OPS
Number of FSINFO operation per second
Ops/Sec
GETATTR_LATENCY
Average latency of GETATTR operations
Microseconds
GETATTR_OPS
Number of GETATTR operation per second
Ops/Sec
LINK_LATENCY
Average latency of LINK operations
Microseconds
LINK_OPS
Number of LINK operation per second
Ops/Sec
LOOKUP_LATENCY
Average latency of LOOKUP operations
Microseconds
LOOKUP_OPS
Number of LOOKUP operation per second
Ops/Sec
MKDIR_LATENCY
Average latency of MKDIR operations
Microseconds
MKDIR_OPS
Number of MKDIR operation per second
Ops/Sec
MKNOD_LATENCY
Average latency of MKNOD operations
Microseconds
MKNOD_OPS
Number of MKNOD operation per second
Ops/Sec
OPS
Total number of operations
Ops/Sec

Operations (S3)

Type
Description
Units
AVG_COPY_OPS
Average copy operations per second
Ops/Sec
AVG_DELETE_OPS
Average delete operations per second
Ops/Sec
AVG_GET_OPS
Average get operations per second
Ops/Sec
AVG_LIST_V1_OPS
Average list v1 operations per second
Ops/Sec
AVG_LIST_V2_OPS
Average list v2 operations per second
Ops/Sec
AVG_MULTIPART_UPLOAD_OPS
Average multipart upload operations per second
Ops/Sec
AVG_PUT_OBJECTPART_OPS
Average put objectpart operations per second
Ops/Sec
AVG_PUT_OPS
Average put operations per second
Ops/Sec
READ_BYTES
Number of byte reads per second
Bytes/Sec
THROUGHPUT
Throughput
Bytes/Sec
TOTAL_BUCKET_CREATE_OPS
Total bucket create operations per second
Ops/Sec
TOTAL_BUCKET_DELETE_OPS
Total bucket delete operation per seconds
Ops/Sec
TOTAL_BUCKET_LIST_OPS
Total bucket list operations per second
Ops/Sec
TOTAL_COPY_LATENCY
Average latency of Copy operations
Microseconds
TOTAL_COPY_OPS
Total Copy operations
Ops
TOTAL_DELETE_OPS
Total delete operations
Ops
TOTAL_GET_BUCKET_ACL_OPS
Total get bucket acl operations per second
Ops/Sec
TOTAL_GET_BUCKET_NOTIFICATION_OPS
Total get bucket notifications operations per second
Ops/Sec
TOTAL_GET_LATENCY
Average latency of Get operations
Microseconds

Operations (driver)

Type
Description
Units
DIRECT_READ_SIZES_RATE
Blocks/Sec
DIRECT_READ_SIZES
Blocks
DIRECT_WRITE_SIZES_RATE
Blocks
DIRECT_WRITE_SIZES
Blocks
DOORBELL_RING_COUNT
Ops
FAILED_1HOP_READS
Number of failed single hop reads per second
Ops/Sec
FILEATOMICOPEN_LATENCY
Average latency of FILEATOMICOPEN operations
Microseconds
FILEATOMICOPEN_OPS
Number of FILEATOMICOPEN operation per second
Ops/Sec
FILECLOSE_LATENCY
Average latency of FILECLOSE operations
Microseconds
FILECLOSE_OPS
Number of FILECLOSE operation per second
Ops/Sec
FILEOPEN_LATENCY
Average latency of FILEOPEN operations
Microseconds
FILEOPEN_OPS
Number of FILEOPEN operation per second
Ops/Sec
FLOCK_LATENCY
Average latency of FLOCK operations
Microseconds
FLOCK_OPS
Number of FLOCK operation per second
Ops/Sec
GETATTR_LATENCY
Average latency of GETATTR operations
Microseconds
GETATTR_OPS
Number of GETATTR operation per second
Ops/Sec
GETXATTR_LATENCY
Average latency of GETXATTR operations
Microseconds
GETXATTR_OPS
Number of GETXATTR operation per second
Ops/Sec
IOCTL_OBS_PREFETCH_LATENCY
Average latency of IOCTL_OBS_PREFETCH operations
Microseconds

Operations

Type
Description
Units
ACCESS_LATENCY
Average latency of ACCESS operations
Microseconds
ACCESS_OPS
Number of ACCESS operation per second
Ops/Sec
COMMIT_LATENCY
Average latency of COMMIT operations
Microseconds
COMMIT_OPS
Number of COMMIT operation per second
Ops/Sec
CREATE_LATENCY
Average latency of CREATE operations
Microseconds
CREATE_OPS
Number of CREATE operation per second
Ops/Sec
FILEATOMICOPEN_LATENCY
Average latency of FILEATOMICOPEN operations
Microseconds
FILEATOMICOPEN_OPS
Number of FILEATOMICOPEN operation per second
Ops/Sec
FILECLOSE_LATENCY
Average latency of FILECLOSE operations
Microseconds
FILECLOSE_OPS
Number of FILECLOSE operation per second
Ops/Sec
FILEOPEN_LATENCY
Average latency of FILEOPEN operations
Microseconds
FILEOPEN_OPS
Number of FILEOPEN operation per second
Ops/Sec
FLOCK_LATENCY
Average latency of FLOCK operations
Microseconds
FLOCK_OPS
Number of FLOCK operation per second
Ops/Sec
FSINFO_LATENCY
Average latency of FSINFO operations
Microseconds
FSINFO_OPS
Number of FSINFO operation per second
Ops/Sec
GETATTR_LATENCY
Average latency of GETATTR operations
Microseconds
GETATTR_OPS
Number of GETATTR operation per second
Ops/Sec
LINK_LATENCY
Average latency of LINK operations
Microseconds

RAFT

Type
Description
Units
Bucket_LEADER_CHANGES
Changes of leader
Changes
Bucket_REQUESTS_COMPLETED
Requests to leader completed successfully
Requests
Configuration_LEADER_CHANGES
Changes of leader
Changes
Configuration_REQUESTS_COMPLETED
Requests to leader completed successfully
Requests
Invalid_LEADER_CHANGES
Changes of leader
Changes
Invalid_REQUESTS_COMPLETED
Requests to leader completed successfully
Requests
SYNCLOG_TIMEOUTS
Number of times timeouted on syncing logs to node
Timeouts
Test_LEADER_CHANGES
Changes of leader
Changes
Test_REQUESTS_COMPLETED
Requests to leader completed successfully
Requests

RAID

Type
Description
Units
LONG_RPC_TIMEOUTS
Long RPC timeouts encountered
Occurences
RAID_BLOCKS_IN_PREPARED_STRIPE
Free blocks in prepared stripe
RAID_CHUNKS_CLEANED_BY_SHIFT
Dirty chunks cleaned by being shifted out
Occurences
RAID_CHUNKS_SHIFTED
Dirty chunks that shifted out
Occurences
RAID_COMMITTED_STRIPES
Num stripes written
Stripes
RAID_PLACEMENT_SWITCHES
Num placement switches
Switches
RAID_READ_BATCHES_PER_REQUEST_HISTOGRAM
Histogram of number of batches of stripes read in a single request
RAID_READ_BLOCKS_STRIPE_HISTOGRAM
Histogram of number of blocks read from a single stripe
RAID_READ_BLOCKS
Number of blocks read by the RAID
Blocks/Sec
RAID_READ_DEGRADED
Degraded mode reads
Blocks/Sec
RAID_READ_IOS
Raw read blocks performed by the RAID
Blocks/Sec
RAID_STALE_WRITES_DETECTED
Stale write detected in read
Occurences

RPC

Type
Description
Units
CLIENT_CANCELED_REQUESTS
Calls/Sec
CLIENT_DROPPED_RESPONSES
Calls/Sec
CLIENT_RECEIVED_EXCEPTIONS
Calls/Sec
CLIENT_RECEIVED_RESPONSES
Calls/Sec
CLIENT_RECEIVED_TIMEOUTS
Calls/Sec
CLIENT_ROUNDTRIP_AVG_LOW
Microseconds
CLIENT_ROUNDTRIP_AVG
Microseconds
CLIENT_RPC_CALLS_LOW
RPC/Sec
CLIENT_RPC_CALLS
RPC/Sec
CLIENT_SENT_REQUESTS
Calls/Sec
FIRST_RESULTS
Number of first results per second
Ops/Sec
SERVER_ABORTS
Calls/Sec
SERVER_DROPPED_REQUESTS
Calls/Sec
SERVER_PROCESSING_AVG
Microseconds
SERVER_PROCESSING_TIME
SERVER_RECEIVED_REQUESTS
Calls/Sec
SERVER_REJECTS
Calls/Sec
SERVER_RPC_CALLS
RPC/Sec
SERVER_SENT_EXCEPTIONS
Calls/Sec

Reactor

Type
Description
Units
BACKGROUND_CYCLES
Number of cycles spent in background fibers
Cycles/Sec
BACKGROUND_FIBERS
Number of background fibers that are ready to run and eager to get CPU cycles
Fibers
BACKGROUND_TIME
Percentage of the CPU time utilized for background operations
%
BucketInvocationState_CAPACITY
Number of data structures allocated to the BucketInvocationState pool
Structs
BucketInvocationState_STRUCT_SIZE
Number of bytes in each struct of the BucketInvocationState pool
Bytes
BucketInvocationState_USED
Number of structs in the BucketInvocationState pool which are currently being used
Structs
Bucket_CAPACITY
Number of data structures allocated to the Bucket pool
Structs
Bucket_STRUCT_SIZE
Number of bytes in each struct of the Bucket pool
Bytes
Bucket_USED
Number of structs in the Bucket pool which are currently being used
Structs
CLASS_BLOB!(RAID)_CAPACITY
Number of data structures allocated to the CLASS_BLOB!(RAID) pool
Structs
CLASS_BLOB!(RAID)_STRUCT_SIZE
Number of bytes in each struct of the CLASS_BLOB!(RAID) pool
Bytes
CLASS_BLOB!(RAID)_USED
Number of structs in the CLASS_BLOB!(RAID) pool which are currently being used
Structs
CYCLES_PER_SECOND
Number of cycles the cpu runs per second
Cycles/Sec
ChainedSpan_CAPACITY
Number of data structures allocated to the ChainedSpan pool
Structs
ChainedSpan_STRUCT_SIZE
Number of bytes in each struct of the ChainedSpan pool
Bytes
ChainedSpan_USED
Number of structs in the ChainedSpan pool which are currently being used
Structs
Charter_CAPACITY
Number of data structures allocated to the Charter pool
Structs
Charter_STRUCT_SIZE
Number of bytes in each struct of the Charter pool
Bytes
Charter_USED
Number of structs in the Charter pool which are currently being used
Structs

SSD

Type
Description
Units
DRIVE_ACTIVE_IOS
The number of in flight IO against the SSD at the time of sampling
IOs
DRIVE_FORFEITS
Number of IOs forfeited due to lack of memory buffers
Operations/Sec
DRIVE_IDLE_CYCLES
Number of cycles spent in idle
Cycles/Sec
DRIVE_IDLE_TIME
Percentage of the CPU time not utilized for handling I/Os
%
DRIVE_IO_OVERLAPPED
Number of overlapping IOs
Operations
DRIVE_IO_TOO_LONG
Number of IOs that took longer than expected
Operations/Sec
DRIVE_LATENCY
Measure the latencies up to 5ms (higher latencies will be grouped together)
DRIVE_LOAD
Drive Load at sampling time
Load
DRIVE_MEDIA_BLOCKS_READ
Blocks read from the SSD media
Blocks/Sec
DRIVE_MEDIA_BLOCKS_WRITE
Blocks written to the SSD media
Blocks/Sec
DRIVE_MEDIA_ERRORS
SSD Media Errors
IO/Sec
DRIVE_NON_MEDIA_ERRORS
SSD Non-Media Errors
IO/Sec
DRIVE_PENDING_IOS
The number of IOs waiting to start executing at the time of sampling
IOs
DRIVE_PUMPED_IOS
Number of requests returned in a pump
DRIVE_PUMPS_DELAYED
Number of Drive pumps that got delayed
Operations/Sec
DRIVE_PUMPS_SEVERELY_DELAYED
Number of Drive pumps that got severely delayed
Operations/Sec
DRIVE_PUMP_LATENCY
Latency between SSD pumps
Microseconds
DRIVE_READ_LATENCY
Drive Read Execution Latency
Microseconds
DRIVE_READ_OPS
Drive Read Operations
IO/Sec

Scrubber

Type
Description
Units
ACTUALLY_FALSE_FREE
Number of blocks that were detected as false-used and freed
Blocks/Sec
CLEANED_CHUNKS
Number of chunks that were cleaned by the scrubber
Chunks/Sec
DEGRADED_READS
Number of degraded reads for scrubbing
Requests/Sec
FALSE_FREE_CHECKED_BLOCKS
Number of blocks that were scrubbed-false-used
Blocks/Sec
FALSE_FREE_CHECK_LATENCY
Average latency of checking false free per block
Micros
FALSE_USED_CHECK_LATENCY
Average latency of checking false used per block
Micros
FALSE_USED_EXTRA_NOTIFIED
Number of blocks that were notified as used by the mark-extra-used mechanism
Blocks/Sec
INTERRUPTS
Number of scrubs that were interrupted
Occurences/Sec
NETWORK_BUDGET_WAIT_LATENCY
Average latency of waiting for our network budget
Micros
NOT_ACTUALLY_FALSE_FREE
Number of blocks that were detected as used
Blocks/Sec
NOT_REALLY_DIRTY_BLOCKS
Number of marked dirty blocks that ScrubMissingWrites found were actually clean
Blocks/Sec
NUM_COPY_DISCARDED_BLOCKS
Number of copied blocks that were discarded
Blocks/Sec
NUM_COPY_DISCARDS
Number of times we discarded scrubber copy work
Occurences/Sec
NUM_INVENTED_STRIPES_DISCARDS
Number of times we discarded all scrubber work due to invented stripes
Occurences/Sec
NUM_INVENTED_STRIPES_DISCARD_BLOCKS
Number of blocks that were discarded due to invented stripes
Blocks/Sec
NUM_SCRUBBER_DISCARD_INTERMEDIATES
Number of times we discarded all intermediate scrubber work
Occurences/Sec
NUM_SMW_DISCARDED_BLOCKS
Number of SMW'd blocks that were discarded
Blocks/Sec
NUM_SMW_DISCARDS
Number of times we discarded scrubber SMW work
Occurences/Sec
PLACEMENT_SELECTION_LATENCY
Average latency of scrubbed placement selection
Micros

Squelch

Type
Description
Units
BLOCKS_PER_DESQUELCH
Blocks
EXTENT_DESQUELCHES_NUM
Times
EXTENT_SQUELCH_BLOCKS_READ
Blocks
HASH_DESQUELCHES_NUM
Times
HASH_SQUELCH_BLOCKS_READ
Blocks