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39fc0cb557
This is foundational work for ZED.
Updates a leaf vdev's persistent device strings on Linux platform
* only applies for a dedicated leaf vdev (aka whole disk)
* updated during pool create|add|attach|import
* used for matching device matching during auto-{online,expand,replace}
* stored in a leaf disk config label (i.e. alongside 'path' NVP)
* can opt-out using env var ZFS_VDEV_DEVID_OPT_OUT=YES
Some examples:
path: '/dev/sdb1'
devid: 'scsi-350000394a8ca4fbc-part1'
phys_path: 'pci-0000:04:00.0-sas-0x50000394a8ca4fbf-lun-0'
path: '/dev/mapper/mpatha'
devid: 'dm-uuid-mpath-35000c5006304de3f'
Signed-off-by: Don Brady <don.brady@intel.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2856
Closes #3978
Closes #4416
14 lines
467 B
Plaintext
14 lines
467 B
Plaintext
dnl #
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dnl # Check for libudev - needed for vdev auto-online and auto-replace
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dnl #
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AC_DEFUN([ZFS_AC_CONFIG_USER_LIBUDEV], [
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LIBUDEV=
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AC_CHECK_HEADER([libudev.h], [AC_SUBST([LIBUDEV], ["-ludev"])
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AC_DEFINE([HAVE_LIBUDEV], 1, [Define if you have libudev])], [])
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AC_SEARCH_LIBS(i[udev_device_get_is_initialized], [udev], [
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AC_DEFINE([HAVE_LIBUDEV_UDEV_DEVICE_GET_IS_INITIALIZED], 1, [
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Define if udev_device_get_is_initialized is available])], [])
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])
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