^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) What: /sys/class/scsi_tape/*/stats/in_flight
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) Date: Apr 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) KernelVersion: 4.2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) Contact: Shane Seymour <shane.seymour@hp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) Show the number of I/Os currently in-flight between the st
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) module and the SCSI mid-layer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) Users:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) What: /sys/class/scsi_tape/*/stats/io_ns
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) Date: Apr 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) KernelVersion: 4.2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) Contact: Shane Seymour <shane.seymour@hp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) Shows the total amount of time spent waiting for all I/O
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) to and from the tape drive to complete. This includes all
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) reads, writes, and other SCSI commands issued to the tape
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) drive. An example of other SCSI commands would be tape
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) movement such as a rewind when a rewind tape device is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) closed. This item is measured in nanoseconds.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) To determine the amount of time spent waiting for other I/O
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) to complete subtract read_ns and write_ns from this value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) Users:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) What: /sys/class/scsi_tape/*/stats/other_cnt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) Date: Apr 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) KernelVersion: 4.2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) Contact: Shane Seymour <shane.seymour@hp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) The number of I/O requests issued to the tape drive other
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) than SCSI read/write requests.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) Users:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) What: /sys/class/scsi_tape/*/stats/read_byte_cnt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) Date: Apr 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) KernelVersion: 4.2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) Contact: Shane Seymour <shane.seymour@hp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) Shows the total number of bytes requested from the tape drive.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) This value is presented in bytes because tape drives support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) variable length block sizes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) Users:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) What: /sys/class/scsi_tape/*/stats/read_cnt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) Date: Apr 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) KernelVersion: 4.2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) Contact: Shane Seymour <shane.seymour@hp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) Shows the total number of read requests issued to the tape
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) drive.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) Users:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) What: /sys/class/scsi_tape/*/stats/read_ns
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) Date: Apr 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) KernelVersion: 4.2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) Contact: Shane Seymour <shane.seymour@hp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) Shows the total amount of time in nanoseconds waiting for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) read I/O requests to complete.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) Users:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) What: /sys/class/scsi_tape/*/stats/write_byte_cnt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) Date: Apr 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) KernelVersion: 4.2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) Contact: Shane Seymour <shane.seymour@hp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) Shows the total number of bytes written to the tape drive.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) This value is presented in bytes because tape drives support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) variable length block sizes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) Users:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) What: /sys/class/scsi_tape/*/stats/write_cnt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) Date: Apr 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) KernelVersion: 4.2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) Contact: Shane Seymour <shane.seymour@hp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) Shows the total number of write requests issued to the tape
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) drive.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) Users:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) What: /sys/class/scsi_tape/*/stats/write_ms
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) Date: Apr 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) KernelVersion: 4.2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) Contact: Shane Seymour <shane.seymour@hp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) Shows the total amount of time in nanoseconds waiting for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) write I/O requests to complete.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) Users:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) What: /sys/class/scsi_tape/*/stats/resid_cnt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) Date: Apr 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) KernelVersion: 4.2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) Contact: Shane Seymour <shane.seymour@hp.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) Description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) Shows the number of times we found that a residual >0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) was found when the SCSI midlayer indicated that there was
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) an error. For reads this may be a case of someone issuing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) reads greater than the block size.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) Users:
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags