diff options
Diffstat (limited to 'sys/contrib/openzfs/man/man8/zpool-events.8')
| -rw-r--r-- | sys/contrib/openzfs/man/man8/zpool-events.8 | 61 |
1 files changed, 58 insertions, 3 deletions
diff --git a/sys/contrib/openzfs/man/man8/zpool-events.8 b/sys/contrib/openzfs/man/man8/zpool-events.8 index a176e54a2b7b..2d32dce2bb65 100644 --- a/sys/contrib/openzfs/man/man8/zpool-events.8 +++ b/sys/contrib/openzfs/man/man8/zpool-events.8 @@ -26,9 +26,9 @@ .\" Copyright (c) 2018 George Melikov. All Rights Reserved. .\" Copyright 2017 Nexenta Systems, Inc. .\" Copyright (c) 2017 Open-E, Inc. All Rights Reserved. -.\" Copyright (c) 2024, Klara Inc. +.\" Copyright (c) 2024, 2025, Klara, Inc. .\" -.Dd February 28, 2024 +.Dd July 3, 2025 .Dt ZPOOL-EVENTS 8 .Os . @@ -308,6 +308,16 @@ The valid pipeline stages for the I/O. See the .Sy I/O STAGES section for a full list of all the I/O stages. +.It Sy zio_priority +The queue priority of the I/O request. +See the +.Sy I/O PRIORITIES +section for a full list of all the I/O priorities. +.It Sy zio_tyoe +The type of the I/O request. +See the +.Sy I/O TYPES +section for a full list of all the I/O types. .It Sy zio_delay The time elapsed (in nanoseconds) waiting for the block layer to complete the I/O request. @@ -455,7 +465,7 @@ ZIO_FLAG_DONT_RETRY:0x00000400 ZIO_FLAG_NODATA:0x00001000 ZIO_FLAG_INDUCE_DAMAGE:0x00002000 -ZIO_FLAG_IO_ALLOCATING:0x00004000 +ZIO_FLAG_ALLOC_THROTTLED:0x00004000 ZIO_FLAG_IO_RETRY:0x00008000 ZIO_FLAG_PROBE:0x00010000 ZIO_FLAG_TRYHARD:0x00020000 @@ -477,6 +487,51 @@ ZIO_FLAG_DELEGATED:0x40000000 ZIO_FLAG_FASTWRITE:0x80000000 .TE . +.Sh I/O TYPES +Every I/O request in the pipeline has a single type value. +This value describes the kind of low-level work the I/O represents. +This value will be set in an event as a +.Sy zio_type +payload entry. +.Pp +.TS +tab(:); +l l l . +Type:Value:Description +_:_:_ +ZIO_TYPE_NULL:0x0:internal I/O sync point +ZIO_TYPE_READ:0x1:data read +ZIO_TYPE_WRITE:0x2:data write +ZIO_TYPE_FREE:0x3:block free +ZIO_TYPE_CLAIM:0x4:block claim (ZIL replay) +ZIO_TYPE_FLUSH:0x5:disk cache flush request +ZIO_TYPE_TRIM:0x6:trim (discard) +.TE +. +.Sh I/O PRIORITIES +Every I/O request in the pipeline has a single priority value. +This value is used by the queuing code to decide which I/O to issue next. +This value will be set in an event as a +.Sy zio_priority +payload entry. +.Pp +.TS +tab(:); +l l l . +Type:Value:Description +_:_:_ +ZIO_PRIORITY_SYNC_READ:0x0: +ZIO_PRIORITY_SYNC_WRITE:0x1:ZIL +ZIO_PRIORITY_ASYNC_READ:0x2:prefetch +ZIO_PRIORITY_ASYNC_WRITE:0x3:spa_sync() +ZIO_PRIORITY_SCRUB:0x4:asynchronous scrub/resilver reads +ZIO_PRIORITY_REMOVAL:0x5:reads/writes for vdev removal +ZIO_PRIORITY_INITIALIZING:0x6:initializing I/O +ZIO_PRIORITY_TRIM:0x7:trim I/O (discard) +ZIO_PRIORITY_REBUILD:0x8:reads/writes for vdev rebuild +ZIO_PRIORITY_NOW:0xa:non-queued i/os (e.g. free) +.TE +. .Sh SEE ALSO .Xr zfs 4 , .Xr zed 8 , |