lun

08/29/2024 Contributors

This table contains LUN-level SAN counters which are shared between 7-mode and C-mode. These counters are available for every mapped logical unit. The alias name for lun:node is lun_node.

Classic Object: lun

Table Row IDs

ID Format	Aggregation Type	Comment
{svm.name}:{instance_name}:{instance_uuid}	(not applicable)	This represents the construction of the row ID field, which is a single unique string that identifies a row.
{node.name}:{svm.name}:{instance_name}:{instance_uuid}	constituent	This represents the construction of a row ID field for a row from a single node.
{node.name}:{node.uuid}	node	This represents the construction of the row ID field in node combo object, which is a single unique string that identifies a row.

ID Format

Aggregation Type

Comment

{svm.name}:{instance_name}:{instance_uuid}

(not applicable)

This represents the construction of the row ID field, which is a single unique string that identifies a row.

{node.name}:{svm.name}:{instance_name}:{instance_uuid}

constituent

This represents the construction of a row ID field for a row from a single node.

{node.name}:{node.uuid}

node

This represents the construction of the row ID field in node combo object, 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	Name of the node
vserver_name	svm.name	Name of the vserver owning this logical unit
vserver_uuid	svm.uuid	UUID of the SVM owning this logical unit
instance_uuid	uuid	UUID of the logical unit

Classic String Counter

REST Property

Description

node_name

node.name

Name of the node

vserver_name

svm.name

Name of the vserver owning this logical unit

vserver_uuid

svm.uuid

UUID of the SVM owning this logical unit

instance_uuid

uuid

UUID of the logical unit

Counters

This section describes the mapping between classic (ONTAPI) numeric counter names and REST counter names.

Classic Numeric Counter	REST Counter	Description
avg_read_latency	average_read_latency	Average read latency in microseconds for all operations on the LUN
avg_write_latency	average_write_latency	Average write latency in microseconds for all operations on the LUN
avg_xcopy_latency	average_xcopy_latency	Average latency in microseconds for xcopy requests
caw_reqs	caw_requests	Number of compare and write requests
enospc	enospc	Number of operations receiving ENOSPC errors
queue_full	queue_full	Queue full responses
read_align_histo	read_align_histogram	Histogram of WAFL read alignment (number sectors off WAFL block start)
read_data	read_data	Read bytes
read_ops	read_ops	Number of read operations
read_ops_sent	read_ops_sent	Number of outgoing read operations
read_partial_blocks	read_partial_blocks	Percentage of reads whose size is not a multiple of WAFL block size
remote_bytes	remote_bytes	I/O to or from a LUN which is not owned by the storage system handling the I/O.
remote_ops	remote_ops	Number of operations received by a storage system that does not own the LUN targeted by the operations.
unmap_reqs	unmap_requests	Number of unmap command requests
write_align_histo	write_align_histogram	Histogram of WAFL write alignment (number of sectors off WAFL block start)
write_data	write_data	Write bytes
write_ops	write_ops	Number of write operations
write_ops_sent	write_ops_sent	Number of outgoing write operations
write_partial_blocks	write_partial_blocks	Percentage of writes whose size is not a multiple of WAFL block size
writesame_reqs	writesame_requests	Number of write same command requests
writesame_unmap_reqs	writesame_unmap_requests	Number of write same commands requests with unmap bit set
xcopy_reqs	xcopy_requests	Total number of xcopy operations on the LUN

Classic Numeric Counter

REST Counter

Description

avg_read_latency

average_read_latency

Average read latency in microseconds for all operations on the LUN

avg_write_latency

average_write_latency

Average write latency in microseconds for all operations on the LUN

avg_xcopy_latency

average_xcopy_latency

Average latency in microseconds for xcopy requests

caw_reqs

caw_requests

Number of compare and write requests

enospc

Number of operations receiving ENOSPC errors

queue_full

Queue full responses

read_align_histo

read_align_histogram

Histogram of WAFL read alignment (number sectors off WAFL block start)

read_data

Read bytes

read_ops

Number of read operations

read_ops_sent

Number of outgoing read operations

read_partial_blocks

Percentage of reads whose size is not a multiple of WAFL block size

remote_bytes

I/O to or from a LUN which is not owned by the storage system handling the I/O.

remote_ops

Number of operations received by a storage system that does not own the LUN
targeted by the operations.

unmap_reqs

unmap_requests

Number of unmap command requests

write_align_histo

write_align_histogram

Histogram of WAFL write alignment (number of sectors off WAFL block start)

write_data

Write bytes

write_ops

Number of write operations

write_ops_sent

Number of outgoing write operations

write_partial_blocks

Percentage of writes whose size is not a multiple of WAFL block size

writesame_reqs

writesame_requests

Number of write same command requests

writesame_unmap_reqs

writesame_unmap_requests

Number of write same commands requests with unmap bit set

xcopy_reqs

xcopy_requests

Total number of xcopy operations on the LUN

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.

Table Aliases

This section describes aliases for aggregated tables.

Classic Object	Alias
lun:node	lun_node

Classic Object

Alias

lun:node

lun_node

lun

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Table Row IDs

Properties

Counters

Property/Counter Content Changes

Table Aliases