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use __aarch64__ define
Change-Id: Ifa444bc397403844fe2f12db9825a473e50f8e18
Signed-off-by: Yury Usishchev <y.usishchev@samsung.com>
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Document 'show status' in the multipathd manpage.
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1/ add the 'prio_args' config keyword to allow passing arguments
to the getprio function
2/ merge the datacore prioritizer. Adapt the legacy datacore
prioritizer callout to the libprio framework. First use of the
'prio_args'
3/ fix the 'show config' multipathd cli command to display the
prio and prio_args values. Also fix a bunch of other values
affected by the same bug (features, ...).
4/ update docs
5/ remove some heading whitespaces
6/ remove useless prioritizers include files
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When you reconfigure multipathd, it needs to set the daemon flag in the
new config structure, so that the daemon only-code will still work.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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We need to close the sysfs file after setting its value.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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The name of the sysfs file is actually fast_io_fail_tmo, not fast_io_fail
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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Removes a hwtable entry for a IBM Virtual SCSI vendor/device ID that
is no longer going to be released. Adds a new vendor/device ID for
a new IBM Virtual SCSI vendor/device ID. This is needed since path
switching on this device type is expensive, so we don't want to do
round robin. Additionally, the default health checker (direct IO)
does not work for this device type.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
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This adds a new multipathd command, "count paths". which returns information in
the format
Paths: <nr_of_paths>
Busy: <True|False>
where "Paths" is the number of monitored paths, and "Busy" is set when
multipathd is currently handling uevents. With this, it is possible to quickly
get the number of paths being monitored, as well as an idea if more paths may
be showing up shortly.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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device-mapper in now able to synchronize operations through udev. This patch
allows multipath and kpartx to make use of this feature. If kpartx is run with
"-s", it waits for the partitions to be created before returning. Multipath
will now always wait for the devices to be created before returning.
This feature requires dm_task_set_cookie() which was finalized in device-mapper
version 1.2.38
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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This patch adds the requested force-stop and force-restart to the init
script. It also keeps the init script for printing annoying error messages,
while checking the root device.
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This patch fixes a rdac minor message issue. rdac message is not passed in one of the path down cases. This patch fixes this problem. Also I have re-arranged the code for better readability.
Signed-off-by: Babu Moger <babu.moger@lsi.com>
Reviewed-by: Vijay Chauhan <Vijay.Chauhan@lsi.com>
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This patch adds alias while printing checker messages.
Example of current Checker message.
Apr 11 04:03:53 mymachine multipathd: sde: rdac checker reports path is down
Most of the time "sde" is meaningless when debugging the past failures.
This patch add alias before the checker message..
Example of the new message..
Apr 12 16:55:54 mymachine multipathd: mpathb: sde - rdac checker reports path is down
Signed-off-by: Babu Moger <babu.moger@lsi.com>
Reviewed-by: Vijay Chauhan <Vijay.Chauhan@lsi.com>
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Add entry to the hwtable for IBM Power Virtual SCSI ALUA devices
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
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The current bindings file location (/var/lib/multipath/bindings) can be
problematic, since multipath can start up before /var/lib is mounted yet in
late boot. In this case, multipath will create it's own bindings file which
will be covered up by /var when it is mounted. This means that the device
names that you get on startup might be different from the device names that you
get when you run multipath on a system during normal operation. Since /etc is
always available when multipath starts up in late boot, moving the bindings
file there fixes the problem.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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For contained slices, the offset of the new device should be from the start
of the containing device, which is what you are creating the new device on top
of. It should not be the offset from the start of the entire disk.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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This patch modifies the redhat init script, so that it doesn't allow
multipathd to be stopped when the root device is on it.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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This patch does two things. First, it allows the tur checker to retry when it
fails with DID_TRANSPORT_DISRUPTED. Second, it makes both calls to check a path
use get_state, do avoid duplicated code.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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This patch adds a new multipath.conf default paramter, queue_without_daemon.
If this is set to "no", when multipathd stops, queueing will be turned off for
all devices. This is useful for devices that set no_path_retry. If a machine
is shut down while all paths to a device are down, it is possible to hang
waiting for IO to return from the device after multipathd has been stopped.
Without multipathd running, access to the paths cannot be restored, and the
kernel cannot be told to stop queueing IO. Setting queue_without_daemon to "no"
makes multipathd turn off queueing on all devices when it stops, avoiding the
problem.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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This patch adds some default configurations that have been requested.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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This patch adds two new configuration parameters to multipath.conf,
fast_io_fail_tmo and dev_loss_tmo which set
/sys/class/fc_remote_ports/rport-<host>:<channel>-<rport_id>/fast_io_fail_tmo and
/sys/class/fc_remote_ports/rport-<host>:<channel>-<rport_id>/dev_loss_tmo
for all the capable paths in a multipath device.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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Display avg priority as group priority
Now average priority is used as path group priority, instead of sum of
priorities of the paths. But while displaying group priority, sum is
being displayed. Change it to print the average priority.
When there are no enabled paths, print 0 as priority.
Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>
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SPC defines the preference indicator (bit 7 of the first byte returned
by REPORT TARGET PORT GROUPS) as indicating a preferred primary target
port group, and says that applications may use it to influence path
selection. Choose TPGs with this bit set over TPGs with it unset.
This fixes failback handling with the Intel Modular Server.
Signed-off-by: Yingying Zhao <yingying.zhao@intel.com>
Signed-off-by: Colin Watson <cjwatson@canonical.com>
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--Boundary-01=_PlHbLmcCyk7NmgQ
Content-Type: text/plain;
charset="utf-8"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline
Hi!
In latest git -master on line 1443 of multipathd/main.c lock() is called on=
=20
exit_mutex, but since exit_mutex is a pthread_mutex_t, pthread_mutex_lock()=
=20
is needed.
Attached is the one-liner patch, tested it on a gentoo machine and seems to=
be=20
working.
=2D-=20
Regards,
Rumko
From a6bf54d588c2d0c9d3a97541bcb7b605fd1f3ae0 Mon Sep 17 00:00:00 2001
From: Rumko <rumcic@gmail.com>
Date: Fri, 5 Feb 2010 20:59:21 +0100
Subject: [PATCH] Use pthread_mutex_lock() instead of lock() since we are dealing with a
mutex directly.
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A SCSI device can have for more states than just 'offline' and
'running'. In fact, any device _not_ in state 'running' is
unaccessible to I/O, so running a path checker on these devices
will cause the checker to be delayed and hence stall the entire
daemon.
This patch updates the path_offline() function to return the
actual device state. Path checkers will only be run if the
state is PATH_UP. A 'blocked' device state will be translated
into PATH_PENDING, causing the checkerloop to skip this device
and recheck as soon as possible.
Signed-off-by: Hannes Reinecke <hare@suse.de>
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It is referring to an unknown field 'getprio'.
Fix that up and use 'prio_name = DEFAULT_PRIO' instead
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You should lock the mutex before doing a pthread_cond_wait otherwise
undefined results occur. In fact we get away with this with glibc,
but with uclibc it causes a segfault.
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Testing was sponsored by Alyseo SARL.
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we already have fallbacks coming from propsel.c functions.
This change make 'multipath -v3' correctly report what set
the value of a parameter (mpe, hwe, cf or internal)
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so don't start a line with it or the rest of the line will be dropped.
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I assume that the soname wasn't supposed to have a 'd' at the end.
-Ben
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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when the multipath already exists and
1/ new path size is 0
2/ new path size is different than the multipath known size
as per Chandra Seetharaman recommendation.
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added in the map
Hi,
If READ_CAPACITY fails during device discovery, sd device gets attached with device size 0. Currently multipath discover these paths and adds into the map. RDAC patch checker sends inquiry on each path to check path status, which eventually marks this path as up. If this path is from owning controller then mode select will be issued to switch the pathgroup. But any I/O sent to this path(path with size 0) will eventually fail in sd_prep_fn due to incorrect device size and resulting to ping pong between pathgroups. We should only allow valid paths to get added in the map. Below patch checks two cases before adding paths; i.e.:
1) device size of path is not 0
2) there is no mismatch between mpp size and new path size.
Thanks,
Vijay
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multipath should only add paths with valid size to the map. If there is mismatch between map and path size it should not be added. This patch also check if the device size is not 0 before adding path. During device discovery if READ_CAPACITY fails, sd device get attached with device size 0. multipath should not allow the such device to get added in the map.
Signed-off-by: Vijay Chauhan <vijay.chauhan@lsi.com>
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instead of the kernel's name ($kernel). Otherwise we might end up
looking at a wrong or nonexistant node.
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Hi,
attach patch fixes the udev rule for dmraid by not abusing the mpath
prefix. It also drops the superflous path from kpartx_id.
Cheers,
-- Guido
From: Hannes Reinecke <hare@suse.de>
Date: Tue, 24 Jun 2008 16:38:37 +0200
Subject: [PATCH] Fix udev rules for dmraid
The kpartx_id program is located under /lib/udev, so we don't need to
call it with the full pathname.
And we should also create persistent links for dmraid tables.
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Hi,
attached patch adds dependent libraries when building the shared lib.
This allows other tools like dpkg-shlibdeps to deduce the needed
dependencies automatically.
Cheers,
-- Guido
From: =?UTF-8?q?Guido=20G=C3=BCnther?= <agx@sigxcpu.org>
Date: Sun, 30 Aug 2009 14:18:21 +0200
Subject: [PATCH] add library dependencies
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Hi,
attached patch adds a fake soname to the created lib making tools such
as lintian happy. I can keep this debian specific if need be but having
a soname certainly won't hurt.
Cheers,
-- Guido
From: =?UTF-8?q?Guido=20G=C3=BCnther?= <agx@sigxcpu.org>
Date: Sun, 30 Aug 2009 14:30:34 +0200
Subject: [PATCH] set a soname
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Hi,
attached patch checks the header file instead of an installed lib for
dm_task_struct. Since distros have this lib add different patchs the
check should be more reliable.
Cheers,
-- Guido
From: =?UTF-8?q?Guido=20G=C3=BCnther?= <agx@sigxcpu.org>
Date: Sun, 30 Aug 2009 13:38:55 +0200
Subject: [PATCH] check header file for defintion of dm_task_no_flush
instead of checking the so for the symbol (which seems to be hard to
find).
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Hi,
attached patch fixes the URL to the FAQ.
Cheers,
-- Guido
From: Vincent McIntyre <Vincent.McIntyre@csiro.au>
Date: Fri, 9 Jan 2009 18:18:46 +0100
Subject: [PATCH] fix URL to FAQ
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Add support for some more MSA arrays.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
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