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

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

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

Node Name

Name of the disk

Unique ID of the disk

Unique ID of the physical disk

Name of the physical disk

Name of the disk in raid terminology

Name of the RAID group to which the disk belongs, in raid terminology

ID of the RAID group to which the disk belongs, in raid terminology

Raid type of this disk

Disk RPM

Disk capacity in MB

Total number of ZNS disk write I/O message waited per second

The average wait time taken for ZNS disk write I/O message

Time spent in high priority queue

Time spent in guaranteed queue

Time spent in guaranteed other queue

Time spent in cscan high queue

Time spent in cscan medium queue

Time spent in cscan medium b queue

Time spent in cpio queue

Time spent in deadline queue

Time spent in verify queue

This histogram provides the wait latency information for ZNS disk write I/O
messages in queue

Total number of disk operations involving data transfer initiated per second

Average number of blocks transferred in each user read operation

Number of disk read operations initiated each second for retrieving data or
metadata associated with user requests

Average number of blocks transferred in each user write operation

Number of disk write operations initiated each second for storing data or
metadata associated with user requests

Number of disk write I/Os that were executed as part of a skip-mask write

Number of disk skip-write operations initiated each second for storing data or
metadata associated with user requests

Average number of blocks transferred in each consistency point read operation
during a CP

Number of disk read operations initiated each second for consistency point
processing

Average number of blocks transferred in each guaranteed read operation

Average number of blocks transferred in each guaranteed read operation

Number of disk read operations initiated each second for raid reconstruct or
scrubbing activities

Number of disk read operations initiated each second for raid reconstruct or
scrubbing activities

Average number of blocks transferred in each guaranteed write operation

Average number of blocks transferred in each guaranteed write operation

Number of disk write operations initiated each second for raid reconstruct or
scrubbing activities

Number of disk write operations initiated each second for raid reconstruct or
scrubbing activities

Number of guaranteed message operations per second

Average latency per block in microseconds for user read operations

Number of blocks transferred for user read operations per second

Number of read operations per second

Numbers of operations split into child operations per second

Number of child operations resulting from a split operation per second

Number of child operations per second resulting from a break in continuity of
blocks requested

Number of child operations per second resulting from a hard break in continuity
of blocks requested

Amount of data read per second

Average latency per block in microseconds for user write operations

Average latency per operation in microseconds for read and write operations

Number of blocks transferred for user write operations per second

Number of write operations per second

Amount of data written per second.

Number of blocks skipped in skip-mask write operations per second

Number of blocks using a bit bucket per second

Number of blocks using a dummy buffer per second

Average latency per block in microseconds for consistency point read operations

Number of blocks transferred for consistency point read operations per second

Total number of blocks transferred for user operations per second

Total throughput for user operations per second

Average latency per block in microseconds for guaranteed read operations

Average latency per block in microseconds for guaranteed read operations

Number of blocks transferred for guaranteed read operations per second

Number of blocks transferred for guaranteed read operations per second

Average latency per block in microseconds for guaranteed write operations

Average latency per block in microseconds for guaranteed write operations

Number of blocks transferred for guaranteed write operations per second

Number of blocks transferred for guaranteed write operations per second

The utilization percent of the disk

Time base for disk_busy calculation

Average number of I/Os issued to the disk for which we have not yet received the
response

I/O pending histogram.

Average number of I/Os issued to the disk for measuring utilization

Average number of CP I/Os issued to the disk for which we have not yet received
the response

Average number of CP messages issued to the disk for which we have not yet
received the response

Number of I/Os queued to the disk but not yet issued

I/O queued histogram.

Number of requests with non-imminent deadlines issued by deadline scheduler.

Number of requests with imminent deadlines issued by deadline scheduler.

Number of background requests with distant deadlines issued by deadline
scheduler.

Number of background requests with imminent deadlines issued by deadline
scheduler.

Number of non-imminent requests allowed on device by deadline scheduler.

Number of background requests allowed on device by deadline scheduler.

Estimate of disk queue time used by deadline scheduler.

Estimate of disk service time used by deadline scheduler.

Average deadline scheduler wait time by QoS class.

Count of deadline scheduler messages by QoS class.

Disk I/O latency histogram

Read I/O latency histogram

Write I/O latency histogram

Share Blocks I/O latency histogram

Unmap Blocks I/O latency histogram

Number of write stream operations per second

Average measure of the write amplification factor for SSDs

Number of blocks written by the host as reported by the SSD

Number of blocks physically written as reported by the SSD

Milliseconds spent at each CP I/O rate

Total medium errors reported for drive

Total recovered errors reported for drive

Amount of data copied into direct memory access buffers per second.

disk_raid_group