Provided by: zfsutils-linux_2.3.2-1ubuntu3_amd64 
NAME
zpool-status — show detailed health status for ZFS storage pools
SYNOPSIS
zpool status [-dDegiLpPstvx] [-T u|d] [-c [SCRIPT1[,SCRIPT2]…]] [pool]… [interval [count]]
[-j [--json-int, --json-flat-vdevs, --json-pool-key-guid]]
DESCRIPTION
Displays the detailed health status for the given pools. If no pool is specified, then the status of
each pool in the system is displayed. For more information on pool and device health, see the “Device
Failure and Recovery” section of zpoolconcepts(7).
If a scrub or resilver is in progress, this command reports the percentage done and the estimated time to
completion. Both of these are only approximate, because the amount of data in the pool and the other
workloads on the system can change.
--power
Display vdev enclosure slot power status (on or off).
-c [SCRIPT1[,SCRIPT2]…]
Run a script (or scripts) on each vdev and include the output as a new column in the zpool status
output. See the -c option of zpool iostat for complete details.
-j, --json [--json-int, --json-flat-vdevs, --json-pool-key-guid]
Display the status for ZFS pools in JSON format. Specify --json-int to display numbers in
integer format instead of strings. Specify --json-flat-vdevs to display vdevs in flat hierarchy
instead of nested vdev objects. Specify --json-pool-key-guid to set pool GUID as key for pool
objects instead of pool names.
-d Display the number of Direct I/O read/write checksum verify errors that have occurred on a top-
level VDEV. See “zfs_vdev_direct_write_verify” in zfs(4) for details about the conditions that
can cause Direct I/O write checksum verify failures to occur. Direct I/O reads checksum verify
errors can also occur if the contents of the buffer are being manipulated after the I/O has been
issued and is in flight. In the case of Direct I/O read checksum verify errors, the I/O will be
reissued through the ARC.
-D Display a histogram of deduplication statistics, showing the allocated (physically present on
disk) and referenced (logically referenced in the pool) block counts and sizes by reference
count. If repeated, (-DD), also shows statistics on how much of the DDT is resident in the ARC.
-e Only show unhealthy vdevs (not-ONLINE or with errors).
-g Display vdev GUIDs instead of the normal device names These GUIDs can be used in place of device
names for the zpool detach/offline/remove/replace commands.
-i Display vdev initialization status.
-L Display real paths for vdevs resolving all symbolic links. This can be used to look up the
current block device name regardless of the /dev/disk/ path used to open it.
-p Display numbers in parsable (exact) values.
-P Display full paths for vdevs instead of only the last component of the path. This can be used in
conjunction with the -L flag.
-s Display the number of leaf vdev slow I/O operations. This is the number of I/O operations that
didn't complete in zio_slow_io_ms milliseconds (30000 by default). This does not necessarily
mean the I/O operations failed to complete, just took an unreasonably long amount of time. This
may indicate a problem with the underlying storage.
-t Display vdev TRIM status.
-T u|d Display a time stamp. Specify u for a printed representation of the internal representation of
time. See time(1). Specify d for standard date format. See date(1).
-v Displays verbose data error information, printing out a complete list of all data errors since
the last complete pool scrub. If the head_errlog feature is enabled and files containing errors
have been removed then the respective filenames will not be reported in subsequent runs of this
command.
-x Only display status for pools that are exhibiting errors or are otherwise unavailable. Warnings
about pools not using the latest on-disk format will not be included.
EXAMPLES
Example 1: Adding output columns
Additional columns can be added to the zpool status and zpool iostat output with -c.
# zpool status -c vendor,model,size
NAME STATE READ WRITE CKSUM vendor model size
tank ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
U1 ONLINE 0 0 0 SEAGATE ST8000NM0075 7.3T
U10 ONLINE 0 0 0 SEAGATE ST8000NM0075 7.3T
U11 ONLINE 0 0 0 SEAGATE ST8000NM0075 7.3T
U12 ONLINE 0 0 0 SEAGATE ST8000NM0075 7.3T
U13 ONLINE 0 0 0 SEAGATE ST8000NM0075 7.3T
U14 ONLINE 0 0 0 SEAGATE ST8000NM0075 7.3T
# zpool iostat -vc size
capacity operations bandwidth
pool alloc free read write read write size
---------- ----- ----- ----- ----- ----- ----- ----
rpool 14.6G 54.9G 4 55 250K 2.69M
sda1 14.6G 54.9G 4 55 250K 2.69M 70G
---------- ----- ----- ----- ----- ----- ----- ----
Example 2: Display the status output in JSON format
zpool status can output in JSON format if -j is specified. -c can be used to run a script on each VDEV.
# zpool status -j -c vendor,model,size | jq
{
"output_version": {
"command": "zpool status",
"vers_major": 0,
"vers_minor": 1
},
"pools": {
"tank": {
"name": "tank",
"state": "ONLINE",
"guid": "3920273586464696295",
"txg": "16597",
"spa_version": "5000",
"zpl_version": "5",
"status": "OK",
"vdevs": {
"tank": {
"name": "tank",
"alloc_space": "62.6G",
"total_space": "15.0T",
"def_space": "11.3T",
"read_errors": "0",
"write_errors": "0",
"checksum_errors": "0",
"vdevs": {
"raidz1-0": {
"name": "raidz1-0",
"vdev_type": "raidz",
"guid": "763132626387621737",
"state": "HEALTHY",
"alloc_space": "62.5G",
"total_space": "10.9T",
"def_space": "7.26T",
"rep_dev_size": "10.9T",
"read_errors": "0",
"write_errors": "0",
"checksum_errors": "0",
"vdevs": {
"ca1eb824-c371-491d-ac13-37637e35c683": {
"name": "ca1eb824-c371-491d-ac13-37637e35c683",
"vdev_type": "disk",
"guid": "12841765308123764671",
"path": "/dev/disk/by-partuuid/ca1eb824-c371-491d-ac13-37637e35c683",
"state": "HEALTHY",
"rep_dev_size": "3.64T",
"phys_space": "3.64T",
"read_errors": "0",
"write_errors": "0",
"checksum_errors": "0",
"vendor": "ATA",
"model": "WDC WD40EFZX-68AWUN0",
"size": "3.6T"
},
"97cd98fb-8fb8-4ac4-bc84-bd8950a7ace7": {
"name": "97cd98fb-8fb8-4ac4-bc84-bd8950a7ace7",
"vdev_type": "disk",
"guid": "1527839927278881561",
"path": "/dev/disk/by-partuuid/97cd98fb-8fb8-4ac4-bc84-bd8950a7ace7",
"state": "HEALTHY",
"rep_dev_size": "3.64T",
"phys_space": "3.64T",
"read_errors": "0",
"write_errors": "0",
"checksum_errors": "0",
"vendor": "ATA",
"model": "WDC WD40EFZX-68AWUN0",
"size": "3.6T"
},
"e9ddba5f-f948-4734-a472-cb8aa5f0ff65": {
"name": "e9ddba5f-f948-4734-a472-cb8aa5f0ff65",
"vdev_type": "disk",
"guid": "6982750226085199860",
"path": "/dev/disk/by-partuuid/e9ddba5f-f948-4734-a472-cb8aa5f0ff65",
"state": "HEALTHY",
"rep_dev_size": "3.64T",
"phys_space": "3.64T",
"read_errors": "0",
"write_errors": "0",
"checksum_errors": "0",
"vendor": "ATA",
"model": "WDC WD40EFZX-68AWUN0",
"size": "3.6T"
}
}
}
}
}
},
"dedup": {
"mirror-2": {
"name": "mirror-2",
"vdev_type": "mirror",
"guid": "2227766268377771003",
"state": "HEALTHY",
"alloc_space": "89.1M",
"total_space": "3.62T",
"def_space": "3.62T",
"rep_dev_size": "3.62T",
"read_errors": "0",
"write_errors": "0",
"checksum_errors": "0",
"vdevs": {
"db017360-d8e9-4163-961b-144ca75293a3": {
"name": "db017360-d8e9-4163-961b-144ca75293a3",
"vdev_type": "disk",
"guid": "17880913061695450307",
"path": "/dev/disk/by-partuuid/db017360-d8e9-4163-961b-144ca75293a3",
"state": "HEALTHY",
"rep_dev_size": "3.63T",
"phys_space": "3.64T",
"read_errors": "0",
"write_errors": "0",
"checksum_errors": "0",
"vendor": "ATA",
"model": "WDC WD40EFZX-68AWUN0",
"size": "3.6T"
},
"952c3baf-b08a-4a8c-b7fa-33a07af5fe6f": {
"name": "952c3baf-b08a-4a8c-b7fa-33a07af5fe6f",
"vdev_type": "disk",
"guid": "10276374011610020557",
"path": "/dev/disk/by-partuuid/952c3baf-b08a-4a8c-b7fa-33a07af5fe6f",
"state": "HEALTHY",
"rep_dev_size": "3.63T",
"phys_space": "3.64T",
"read_errors": "0",
"write_errors": "0",
"checksum_errors": "0",
"vendor": "ATA",
"model": "WDC WD40EFZX-68AWUN0",
"size": "3.6T"
}
}
}
},
"special": {
"25d418f8-92bd-4327-b59f-7ef5d5f50d81": {
"name": "25d418f8-92bd-4327-b59f-7ef5d5f50d81",
"vdev_type": "disk",
"guid": "3935742873387713123",
"path": "/dev/disk/by-partuuid/25d418f8-92bd-4327-b59f-7ef5d5f50d81",
"state": "HEALTHY",
"alloc_space": "37.4M",
"total_space": "444G",
"def_space": "444G",
"rep_dev_size": "444G",
"phys_space": "447G",
"read_errors": "0",
"write_errors": "0",
"checksum_errors": "0",
"vendor": "ATA",
"model": "Micron_5300_MTFDDAK480TDS",
"size": "447.1G"
}
},
"error_count": "0"
}
}
}
SEE ALSO
zpool-events(8), zpool-history(8), zpool-iostat(8), zpool-list(8), zpool-resilver(8), zpool-scrub(8),
zpool-wait(8)
OpenZFS February 14, 2024 ZPOOL-STATUS(8)