aboutsummaryrefslogtreecommitdiffstats
path: root/include
diff options
context:
space:
mode:
authorTony Hutter <hutter2@llnl.gov>2016-11-29 13:45:38 -0800
committerBrian Behlendorf <behlendorf1@llnl.gov>2016-11-29 14:45:38 -0700
commit8720e9e7482fa2dce4f34c56d3c7451833413d7d (patch)
tree2475bb498ab7bc8e5fb016dbca1a337d10f257c5 /include
parent2f71caf2d926249920d1b9162550c56715cc6461 (diff)
Add -c to zpool iostat & status to run command
This patch adds a command (-c) option to zpool status and zpool iostat. The -c option allows you to run an arbitrary command on each vdev and display the first line of output in zpool status/iostat. The environment vars VDEV_PATH and VDEV_UPATH are set to the vdev's path and "underlying path" before running the command. For device mapper, multipath, or partitioned vdevs, VDEV_UPATH is the actual underlying /dev/sd* disk. This can be useful if the command you're running requires a /dev/sd* device. The patch also uses /sys/block/<dev>/slaves/ to lookup the underlying device instead of using libdevmapper. This not only removes the libdevmapper requirement at build time, but also allows you to resolve device mapper devices without being root. This means that UDEV_UPATH get set correctly when running zpool status/iostat as an unprivileged user. Example: $ zpool status -c 'echo I am $VDEV_PATH, $VDEV_UPATH' NAME STATE READ WRITE CKSUM mypool ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 mpatha ONLINE 0 0 0 I am /dev/mapper/mpatha, /dev/sdc sdb ONLINE 0 0 0 I am /dev/sdb1, /dev/sdb Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tony Hutter <hutter2@llnl.gov> Closes #5368
Diffstat (limited to 'include')
-rw-r--r--include/libzfs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/libzfs.h b/include/libzfs.h
index 67f4bf4b4..d74bf6b10 100644
--- a/include/libzfs.h
+++ b/include/libzfs.h
@@ -838,6 +838,7 @@ extern int zpool_fru_set(zpool_handle_t *, uint64_t, const char *);
extern boolean_t is_mpath_whole_disk(const char *);
extern void update_vdev_config_dev_strs(nvlist_t *);
extern char *zfs_strip_partition(char *);
+extern char *zfs_strip_partition_path(char *);
#ifdef HAVE_LIBUDEV
struct udev_device;