* multipath-tools ./multipath.conf.annotated ./m ...
@ 2007-06-19 18:12 bmarzins
2007-06-19 21:29 ` Device mapper devices not created before fsck at boot Wilson, Christopher J
0 siblings, 1 reply; 4+ messages in thread
From: bmarzins @ 2007-06-19 18:12 UTC (permalink / raw)
To: dm-cvs, dm-devel
CVSROOT: /cvs/dm
Module name: multipath-tools
Branch: RHEL5_FC6
Changes by: bmarzins@sourceware.org 2007-06-19 18:12:15
Modified files:
. : multipath.conf.annotated
multipath.conf.defaults
multipath.conf.synthetic
multipath : multipath.conf.redhat
Log message:
Pulled out cciss blacklist info from files.
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/multipath-tools/multipath.conf.annotated.diff?cvsroot=dm&only_with_tag=RHEL5_FC6&r1=1.18.2.1&r2=1.18.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/multipath-tools/multipath.conf.defaults.diff?cvsroot=dm&only_with_tag=RHEL5_FC6&r1=1.5.4.3&r2=1.5.4.4
http://sourceware.org/cgi-bin/cvsweb.cgi/multipath-tools/multipath.conf.synthetic.diff?cvsroot=dm&only_with_tag=RHEL5_FC6&r1=1.11.2.1&r2=1.11.2.2
http://sourceware.org/cgi-bin/cvsweb.cgi/multipath-tools/multipath/multipath.conf.redhat.diff?cvsroot=dm&only_with_tag=RHEL5_FC6&r1=1.6.2.3&r2=1.6.2.4
--- multipath-tools/multipath.conf.annotated 2007/01/10 20:08:07 1.18.2.1
+++ multipath-tools/multipath.conf.annotated 2007/06/19 18:12:15 1.18.2.2
@@ -130,13 +130,12 @@
## name : blacklist
## scope : multipath & multipathd
## desc : list of device names to discard as not multipath candidates
-## default : cciss, fd, hd, md, dm, sr, scd, st, ram, raw, loop
+## default : fd, hd, md, dm, sr, scd, st, ram, raw, loop
##
#blacklist {
# wwid 26353900f02796769
# devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
# devnode "^hd[a-z][[0-9]*]"
-# devnode "^cciss!c[0-9]d[0-9]*[p[0-9]*]"
# device {
# vendor DEC.*
# product MSA[15]00
--- multipath-tools/multipath.conf.defaults 2007/05/17 19:47:24 1.5.4.3
+++ multipath-tools/multipath.conf.defaults 2007/06/19 18:12:15 1.5.4.4
@@ -19,7 +19,6 @@
#blacklist {
# devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
# devnode "^hd[a-z]"
-# devnode "^cciss!c[0-9]d[0-9]*"
#}
#
#devices {
--- multipath-tools/multipath.conf.synthetic 2007/01/10 20:08:07 1.11.2.1
+++ multipath-tools/multipath.conf.synthetic 2007/06/19 18:12:15 1.11.2.2
@@ -20,7 +20,6 @@
# wwid 26353900f02796769
# devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
# devnode "^hd[a-z][[0-9]*]"
-# devnode "^cciss!c[0-9]d[0-9]*[p[0-9]*]"
# device {
# vendor DEC.*
# product MSA[15]00
--- multipath-tools/multipath/multipath.conf.redhat 2007/05/08 20:15:59 1.6.2.3
+++ multipath-tools/multipath/multipath.conf.redhat 2007/06/19 18:12:15 1.6.2.4
@@ -57,7 +57,6 @@
# wwid 26353900f02796769
# devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
# devnode "^hd[a-z]"
-# devnode "^cciss!c[0-9]d[0-9]*"
#}
#multipaths {
# multipath {
^ permalink raw reply [flat|nested] 4+ messages in thread* Device mapper devices not created before fsck at boot
2007-06-19 18:12 multipath-tools ./multipath.conf.annotated ./m bmarzins
@ 2007-06-19 21:29 ` Wilson, Christopher J
2007-06-19 21:45 ` Phillip Susi
0 siblings, 1 reply; 4+ messages in thread
From: Wilson, Christopher J @ 2007-06-19 21:29 UTC (permalink / raw)
To: device-mapper development
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset=us-ascii, Size: 3825 bytes --]
I have a system(s) which is failing to fsck /dev/mapper/<wwn> devices
during boot time. The dev-mapper devices are not created from the time
dmsetup is run in rc.sysinit until the device fsck is run (next block).
The only device in /dev/mapper is /dev/mapper/control, none of the <wwn>
devices exist before fsck attempts to run. I have put in a "sleep 10"
in between the two code blocks and this has worked on one system and not
others.
From our research our understanding is that there is a race condition
somewhere in udev and dmsetup. Does anyone know if there is a fix for
this issue or have encountered anything similar? Is there anything I
can pass to dmsetup to ensure that devices are created before it
returns? This appears to be specific to the latest generation HP
servers for some reason (faster procs?).
Information about the system and lsmod and ls -al /dev/mapper/ commands
inserted in rc.sysinit below.
OS: RHAS 4
Kernel: 2.6.9-42.Elsmp and 2.6.9-55.Elsmp
Hardware: HP DL380G5
2x proc (latest multi-core)
external disk: 3PARdata
HBA: Qlogic 2460 PCI-x
HBA driver: 8.01.04-d7
Tue Jun 19 17:12:09 EDT 2007
>> ls -al /dev/mapper/* is run here
crw------- 1 root root 10, 63 Jun 19 13:11 /dev/mapper/control
>> lsmod is run here - note dm_round_robin is not loaded
Module Size Used by
dm_mirror 32465 0
dm_multipath 21841 0
button 9057 0
battery 11209 0
ac 6729 0
hw_random 7137 0
bnx2 147253 0
qla2400 201025 0
ext3 137809 2
jbd 69104 1 ext3
dm_mod 68097 2 dm_mirror,dm_multipath
ata_piix 14405 0
libata 78473 1 ata_piix
qla2300 127425 0
qla2322 137537 0
cciss 69809 3
qla2xxx 183201 3 qla2400,qla2300,qla2322
scsi_transport_fc 11841 1 qla2xxx
sd_mod 19393 0
scsi_mod 141457 5
libata,cciss,qla2xxx,scsi_transport_fc,sd_mod
Tue Jun 19 17:12:19 EDT 2007
>> ls -al /dev/mapper/* run again 10 seconds later
brw-rw---- 1 root disk 253, 0 Jun 19 17:12
/dev/mapper/350002ac0000c03fd
brw-rw---- 1 root disk 253, 1 Jun 19 17:12
/dev/mapper/350002ac0000c03fd1
crw------- 1 root root 10, 63 Jun 19 13:11 /dev/mapper/control
>> dm_round_robin is loaded
Module Size Used by
dm_round_robin 4929 1
dm_mirror 32465 0
dm_multipath 21841 2 dm_round_robin
button 9057 0
battery 11209 0
ac 6729 0
hw_random 7137 0
bnx2 147253 0
qla2400 201025 0
ext3 137809 2
jbd 69104 1 ext3
dm_mod 68097 6 dm_mirror,dm_multipath
ata_piix 14405 0
libata 78473 1 ata_piix
qla2300 127425 0
qla2322 137537 0
cciss 69809 3
qla2xxx 183201 5 qla2400,qla2300,qla2322
scsi_transport_fc 11841 1 qla2xxx
sd_mod 19393 2
scsi_mod 141457 5
libata,cciss,qla2xxx,scsi_transport_fc,sd_mod
Christopher Wilson
Storage Architect
Verizon Business
IT Solutions - IP Application Hosting
______________________________________________________________________
This e-mail has been scanned by Verizon Managed Email Content Service, using Skeptic™ technology powered by MessageLabs. For more information on Verizon Managed Email Content Service, visit http://www.verizonbusiness.com.
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Device mapper devices not created before fsck at boot
2007-06-19 21:29 ` Device mapper devices not created before fsck at boot Wilson, Christopher J
@ 2007-06-19 21:45 ` Phillip Susi
0 siblings, 0 replies; 4+ messages in thread
From: Phillip Susi @ 2007-06-19 21:45 UTC (permalink / raw)
To: device-mapper development
Wilson, Christopher J wrote:
> I have a system(s) which is failing to fsck /dev/mapper/<wwn> devices
> during boot time. The dev-mapper devices are not created from the time
> dmsetup is run in rc.sysinit until the device fsck is run (next block).
> The only device in /dev/mapper is /dev/mapper/control, none of the <wwn>
> devices exist before fsck attempts to run. I have put in a "sleep 10"
> in between the two code blocks and this has worked on one system and not
> others.
<snip>
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Doing this causes the message to show up as part of the thread you
replied to, which may case people to never see it if they are ignoring
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message when they are reading the original thread and are expecting the
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Device mapper devices not created before fsck at boot
@ 2007-06-19 21:52 Wilson, Christopher J
0 siblings, 0 replies; 4+ messages in thread
From: Wilson, Christopher J @ 2007-06-19 21:52 UTC (permalink / raw)
To: dm-devel
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset=us-ascii, Size: 3802 bytes --]
Apologies for my previous reply. Here's the same on a new thread.
I have a system(s) which is failing to fsck /dev/mapper/<wwn> devices
during boot time. The dev-mapper devices are not created from the time
dmsetup is run in rc.sysinit until the device fsck is run (next block).
The only device in /dev/mapper is /dev/mapper/control, none of the <wwn>
devices exist before fsck attempts to run. I have put in a "sleep 10"
in between the two code blocks and this has worked on one system and not
others.
From our research our understanding is that there is a race condition
somewhere in udev and dmsetup. Does anyone know if there is a fix for
this issue or have encountered anything similar? Is there anything I
can pass to dmsetup to ensure that devices are created before it
returns? This appears to be specific to the latest generation HP
servers for some reason (faster procs?).
Information about the system and lsmod and ls -al /dev/mapper/ commands
inserted in rc.sysinit below.
OS: RHAS 4
Kernel: 2.6.9-42.Elsmp and 2.6.9-55.Elsmp
Hardware: HP DL380G5
2x proc (latest multi-core)
external disk: 3PARdata
HBA: Qlogic 2460 PCI-x
HBA driver: 8.01.04-d7
Tue Jun 19 17:12:09 EDT 2007
>> ls -al /dev/mapper/* is run here
crw------- 1 root root 10, 63 Jun 19 13:11 /dev/mapper/control
>> lsmod is run here - note dm_round_robin is not loaded
Module Size Used by
dm_mirror 32465 0
dm_multipath 21841 0
button 9057 0
battery 11209 0
ac 6729 0
hw_random 7137 0
bnx2 147253 0
qla2400 201025 0
ext3 137809 2
jbd 69104 1 ext3
dm_mod 68097 2 dm_mirror,dm_multipath
ata_piix 14405 0
libata 78473 1 ata_piix
qla2300 127425 0
qla2322 137537 0
cciss 69809 3
qla2xxx 183201 3 qla2400,qla2300,qla2322
scsi_transport_fc 11841 1 qla2xxx
sd_mod 19393 0
scsi_mod 141457 5
libata,cciss,qla2xxx,scsi_transport_fc,sd_mod
Tue Jun 19 17:12:19 EDT 2007
>> ls -al /dev/mapper/* run again 10 seconds later
brw-rw---- 1 root disk 253, 0 Jun 19 17:12
/dev/mapper/350002ac0000c03fd
brw-rw---- 1 root disk 253, 1 Jun 19 17:12
/dev/mapper/350002ac0000c03fd1
crw------- 1 root root 10, 63 Jun 19 13:11 /dev/mapper/control
>> dm_round_robin is loaded
Module Size Used by
dm_round_robin 4929 1
dm_mirror 32465 0
dm_multipath 21841 2 dm_round_robin
button 9057 0
battery 11209 0
ac 6729 0
hw_random 7137 0
bnx2 147253 0
qla2400 201025 0
ext3 137809 2
jbd 69104 1 ext3
dm_mod 68097 6 dm_mirror,dm_multipath
ata_piix 14405 0
libata 78473 1 ata_piix
qla2300 127425 0
qla2322 137537 0
cciss 69809 3
qla2xxx 183201 5 qla2400,qla2300,qla2322
scsi_transport_fc 11841 1 qla2xxx
sd_mod 19393 2
scsi_mod 141457 5
libata,cciss,qla2xxx,scsi_transport_fc,sd_mod
______________________________________________________________________
This e-mail has been scanned by Verizon Managed Email Content Service, using Skeptic™ technology powered by MessageLabs. For more information on Verizon Managed Email Content Service, visit http://www.verizonbusiness.com.
______________________________________________________________________
^ permalink raw reply [flat|nested] 4+ messages in thread
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2007-06-19 18:12 multipath-tools ./multipath.conf.annotated ./m bmarzins
2007-06-19 21:29 ` Device mapper devices not created before fsck at boot Wilson, Christopher J
2007-06-19 21:45 ` Phillip Susi
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2007-06-19 21:52 Wilson, Christopher J
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