8720e9e748
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
36 lines
849 B
Plaintext
36 lines
849 B
Plaintext
dnl #
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dnl # Default ZFS user configuration
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dnl #
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AC_DEFUN([ZFS_AC_CONFIG_USER], [
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ZFS_AC_CONFIG_USER_MOUNT_HELPER
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ZFS_AC_CONFIG_USER_UDEV
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ZFS_AC_CONFIG_USER_SYSTEMD
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ZFS_AC_CONFIG_USER_SYSVINIT
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ZFS_AC_CONFIG_USER_DRACUT
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ZFS_AC_CONFIG_USER_ZLIB
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ZFS_AC_CONFIG_USER_LIBUUID
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ZFS_AC_CONFIG_USER_LIBTIRPC
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ZFS_AC_CONFIG_USER_LIBBLKID
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ZFS_AC_CONFIG_USER_LIBATTR
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ZFS_AC_CONFIG_USER_LIBUDEV
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ZFS_AC_CONFIG_USER_FRAME_LARGER_THAN
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ZFS_AC_CONFIG_USER_RUNSTATEDIR
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ZFS_AC_CONFIG_USER_COMMANDS
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ZFS_AC_TEST_FRAMEWORK
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AC_CHECK_FUNCS([mlockall])
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])
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dnl #
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dnl # Setup the environment for the ZFS Test Suite. Currently only
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dnl # Linux sytle systems are supported but this infrastructure can
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dnl # be extended to support other platforms if needed.
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dnl #
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AC_DEFUN([ZFS_AC_TEST_FRAMEWORK], [
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ZONENAME="echo global"
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AC_SUBST(ZONENAME)
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AC_SUBST(RM)
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])
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