"Fossies" - the Fresh Open Source Software Archive  

Source code changes of the file "mdadm.conf.5" between
mdadm-4.1.tar.gz and mdadm-4.2.tar.gz

About: mdadm is a tool for creating, managing and monitoring device arrays using the "md" driver in Linux, also known as Software RAID arrays.

mdadm.conf.5  (mdadm-4.1)	:	mdadm.conf.5  (mdadm-4.2)
skipping to change at line 249		skipping to change at line 249
tem and provides a way of marking spares that can be moved to othe r arrays as well as the migra-		tem and provides a way of marking spares that can be moved to othe r arrays as well as the migra-
tion domains. Domain can be defined through policy line by specif ying a domain name for a number		tion domains. Domain can be defined through policy line by specif ying a domain name for a number
of paths from /dev/disk/by-path/. A device may belong to several domains. The domain of an array		of paths from /dev/disk/by-path/. A device may belong to several domains. The domain of an array
is a union of domains of all devices in that array. A spare can be automatically moved from one		is a union of domains of all devices in that array. A spare can be automatically moved from one
array to another if the set of the destination array's domains con tains all the domains of the		array to another if the set of the destination array's domains con tains all the domains of the
new disk or if both arrays have the same spare-group.		new disk or if both arrays have the same spare-group.
To update hot plug configuration it is necessary to execute m dadm --udev-rules command after		To update hot plug configuration it is necessary to execute m dadm --udev-rules command after
changing the config file		changing the config file
Key words used in the POLICY line and supported values are:		Keywords used in the POLICY line and supported values are:
domain=		domain=
any arbitrary string		any arbitrary string
metadata=		metadata=
0.9 1.x ddf or imsm		0.9 1.x ddf or imsm
path= file glob matching anything from /dev/disk/by-path		path= file glob matching anything from /dev/disk/by-path
type= either disk or part.		type= either disk or part.
action=		action=
include, re-add, spare, spare-same-slot, or force-spare		include, re-add, spare, spare-same-slot, or force-spare
auto= yes, no, or homehost.		auto= yes, no, or homehost.
The action item determines the automatic behavior allowed for devi		The action item determines the automatic behavior allowed for devices
ces matching the path and type		matching the path and type in
in the same line. If a device matches several lines with differen		the same line. If a device matches several lines with different a
t actions then the most permis-		ctions then the most permissive
sive will apply. The ordering of policy lines is irrelevant to the		will apply. The ordering of policy lines is irrelevant to the end res
end result.		ult.
include		include
allows adding a disk to an array if metadata on that disk m		allows adding a disk to an array if metadata on that disk matc
atches that array		hes that array
re-add will include the device in the array if it appears to be a		re-add will include the device in the array if it appears to be a cur
current member or a member that		rent member or a member that
was recently removed and the array has a write-intent-bitma		was recently removed and the array has a write-intent-bitmap
p to allow the re-add function-		to allow the re-add functional-
ality.		ity.
spare as above and additionally: if the device is bare it can bec		spare as above and additionally: if the device is bare it can become
ome a spare if there is any		a spare if there is any array
array that it is a candidate for based on domains and metad		that it is a candidate for based on domains and metadata.
ata.
spare-same-slot		spare-same-slot
as above and additionally if given slot was used by an ar		as above and additionally if given slot was used by an array
ray that went degraded recently		that went degraded recently and
and the device plugged in has no metadata then it will be		the device plugged in has no metadata then it will be automati
automatically added to that		cally added to that array (or
array (or it's container)		it's container)
force-spare		force-spare
as above and the disk will become a spare in remaining case		as above and the disk will become a spare in remaining cases
s
		PART-POLICY
		This is similar to POLICY and accepts the same keyword assignmen
		ts. It allows a consistent set
		of policies to applied to each of the partitions of a device.
		A PART-POLICY line should set type=disk and identify the path to o
		ne or more disk devices. Each
		partition on these disks will be treated according to the action=
		setting from this line. If a
		domain is set in the line, then the domain associated with each pa
		tition will be based on the
		domain, but with "-partN" appended, when N is the partition nu
		mber for the partition that was
		found.
		SYSFS The SYSFS line lists custom values of MD device's sysfs attributes
		which will be stored in sysfs
		after the array is assembled. Multiple lines are allowed and each
		line has to contain the uuid or
		the name of the device to which it relates.
		uuid= hexadecimal identifier of MD device. This has to match the uui
		d stored in the superblock.
		name= name of the MD device as was given to mdadm when the array was
		created. It will be ignored if
		uuid is not empty.
		MONITORDELAY
		The monitordelay line gives a delay in seconds mdadm shall wai
		t before pooling md arrays when
		mdadm is running in --monitor mode. -d/--delay command line argum
		ent takes precedence over the
		config file
EXAMPLE		EXAMPLE
DEVICE /dev/sd[bcdjkl]1		DEVICE /dev/sd[bcdjkl]1
DEVICE /dev/hda1 /dev/hdb1		DEVICE /dev/hda1 /dev/hdb1
# /dev/md0 is known by its UUID.		# /dev/md0 is known by its UUID.
ARRAY /dev/md0 UUID=3aaa0122:29827cfa:5331ad66:ca767371		ARRAY /dev/md0 UUID=3aaa0122:29827cfa:5331ad66:ca767371
# /dev/md1 contains all devices with a minor number of		# /dev/md1 contains all devices with a minor number of
# 1 in the superblock.		# 1 in the superblock.
ARRAY /dev/md1 superminor=1		ARRAY /dev/md1 superminor=1
skipping to change at line 327		skipping to change at line 351
# One domain comprising of devices attached to specified paths is defined .		# One domain comprising of devices attached to specified paths is defined .
# Bare device matching first path will be made an imsm spare on hot plug.		# Bare device matching first path will be made an imsm spare on hot plug.
# If more than one array is created on devices belonging to domain1 and		# If more than one array is created on devices belonging to domain1 and
# one of them becomes degraded, then any imsm spare matching any path for		# one of them becomes degraded, then any imsm spare matching any path for
# given domain name can be migrated.		# given domain name can be migrated.
MAILADDR root@mydomain.tld		MAILADDR root@mydomain.tld
PROGRAM /usr/sbin/handle-mdadm-events		PROGRAM /usr/sbin/handle-mdadm-events
CREATE group=system mode=0640 auto=part-8		CREATE group=system mode=0640 auto=part-8
HOMEHOST <system>		HOMEHOST <system>
AUTO +1.x homehost -all		AUTO +1.x homehost -all
		SYSFS name=/dev/md/raid5 group_thread_cnt=4 sync_speed_max=1000000
		SYSFS uuid=bead5eb6:31c17a27:da120ba2:7dfda40d group_thread_cnt=4 sync_sp
		eed_max=1000000
		MONITORDELAY 60
SEE ALSO		SEE ALSO
mdadm(8), md(4).		mdadm(8), md(4).
MDADM.CONF(5)		MDADM.CONF(5)
End of changes. 14 change blocks.
37 lines changed or deleted		74 lines changed or added

---