vinz
Tux's lil' helper
Joined: 11 Aug 2002
Posts: 93
Location: Switzerland
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 Posted: Fri Mar 12, 2010 11:43 am Post subject: dm / multipath & lvm2 |
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hello
i have a system connected to a fc-san
the hardware is set up and working properly, i have a debian system accessing the volumes already, but i'd like to migrate the system to gentoo
the problem is, dm/lvm is not populating the volumes
hope somebody can help me 
| Code: |
# pvscan -v
Wiping cache of LVM-capable devices
Wiping internal VG cache
Walking through all physical volumes
No matching physical volumes found
# uname -rpm
2.6.31-xen-r11 x86_64 Intel(R) Xeon(R) CPU E5530 @ 2.40GHz
PV550F12-UPPER (360050cc0006102f20000000000000028) dm-0 ,
[size=3.2T][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=4][active]
\_ #:#:#:# sdb 8:16 [active][ready]
\_ #:#:#:# sdd 8:48 [active][ready]
\_ #:#:#:# sdf 8:80 [active][ready]
\_ #:#:#:# sdh 8:112 [active][ready]
PV550F12-LOWER (360050cc0006102e80000000000000000) dm-1 ,
[size=3.2T][features=1 queue_if_no_path][hwhandler=0]
\_ round-robin 0 [prio=4][active]
\_ #:#:#:# sdc 8:32 [active][ready]
\_ #:#:#:# sde 8:64 [active][ready]
\_ #:#:#:# sdg 8:96 [active][ready]
\_ #:#:#:# sdi 8:128 [active][ready]
# dmsetup ls
PV550F12-UPPER (252, 0)
PV550F12-LOWER (252, 1)
# dmsetup status
PV550F12-UPPER: 0 6959407104 multipath 2 0 0 0 1 1 A 0 4 0 8:16 A 0 8:48 A 0 8:80 A 0 8:112 A 0
PV550F12-LOWER: 0 6959407104 multipath 2 0 0 0 1 1 A 0 4 0 8:32 A 0 8:64 A 0 8:96 A 0 8:128 A 0
# ls -l /dev/mapper/
total 0
brw-rw---- 1 root disk 252, 1 Mar 12 12:26 PV550F12-LOWER
brw-rw---- 1 root disk 252, 0 Mar 12 12:26 PV550F12-UPPER
crw-rw---- 1 root root 10, 53 Mar 12 2010 control
# ls -l /dev/dm*
ls: cannot access /dev/dm*: No such file or directory
# dmesg |grep device-map
[ 1.029450] device-mapper: uevent: version 1.0.3
[ 1.029594] device-mapper: ioctl: 4.15.0-ioctl (2009-04-01) initialised: dm-devel@redhat.com
[ 1.029762] device-mapper: multipath: version 1.1.0 loaded
[ 1.029767] device-mapper: multipath round-robin: version 1.0.0 loaded
[ 1.029770] device-mapper: multipath queue-length: version 0.1.0 loaded
[ 1.029773] device-mapper: multipath service-time: version 0.2.0 loaded
# lsscsi
[0:0:1:0] disk ATA Hitachi HDS72168 P21O /dev/sda
[4:0:0:0] disk transtec PROVIGO 550F /dev/sdb
[4:0:0:1] process transtec PROVIGO 550F -
[4:0:1:0] disk transtec PROVIGO 550F /dev/sdc
[4:0:1:1] process transtec PROVIGO 550F -
[4:0:2:0] disk transtec PROVIGO 550F /dev/sdd
[4:0:2:1] process transtec PROVIGO 550F -
[4:0:3:0] disk transtec PROVIGO 550F /dev/sde
[4:0:3:1] process transtec PROVIGO 550F -
[5:0:0:0] disk transtec PROVIGO 550F /dev/sdf
[5:0:0:1] process transtec PROVIGO 550F -
[5:0:1:0] disk transtec PROVIGO 550F /dev/sdg
[5:0:1:1] process transtec PROVIGO 550F -
[5:0:2:0] disk transtec PROVIGO 550F /dev/sdh
[5:0:2:1] process transtec PROVIGO 550F -
[5:0:3:0] disk transtec PROVIGO 550F /dev/sdi
[5:0:3:1] process transtec PROVIGO 550F -
# pvscan -vvv 2>&1|grep map
/dev/mapper/PV550F12-LOWER: Already in device cache
/dev/mapper/PV550F12-UPPER: Already in device cache
/dev/mapper/control: Not a block device
/dev/mapper/PV550F12-UPPER: New preferred name
Opened /dev/mapper/PV550F12-UPPER RO
/dev/mapper/PV550F12-UPPER: size is 6959407104 sectors
Closed /dev/mapper/PV550F12-UPPER
/dev/mapper/PV550F12-UPPER: size is 6959407104 sectors
Opened /dev/mapper/PV550F12-UPPER RO O_DIRECT
/dev/mapper/PV550F12-UPPER: block size is 4096 bytes
Closed /dev/mapper/PV550F12-UPPER
Using /dev/mapper/PV550F12-UPPER
Opened /dev/mapper/PV550F12-UPPER RO O_DIRECT
/dev/mapper/PV550F12-UPPER: block size is 4096 bytes
/dev/mapper/PV550F12-UPPER: No label detected
Closed /dev/mapper/PV550F12-UPPER
/dev/mapper/PV550F12-LOWER: New preferred name
Opened /dev/mapper/PV550F12-LOWER RO
/dev/mapper/PV550F12-LOWER: size is 6959407104 sectors
Closed /dev/mapper/PV550F12-LOWER
/dev/mapper/PV550F12-LOWER: size is 6959407104 sectors
Opened /dev/mapper/PV550F12-LOWER RO O_DIRECT
/dev/mapper/PV550F12-LOWER: block size is 4096 bytes
Closed /dev/mapper/PV550F12-LOWER
Using /dev/mapper/PV550F12-LOWER
Opened /dev/mapper/PV550F12-LOWER RO O_DIRECT
/dev/mapper/PV550F12-LOWER: block size is 4096 bytes
/dev/mapper/PV550F12-LOWER: No label detected
Closed /dev/mapper/PV550F12-LOWER
# egrep -v "^#|^$|^ #" /etc/lvm/lvm.conf
devices {
dir = "/dev"
scan = [ "/dev" ]
preferred_names = [ ]
filter = [ "a|/dev/mapper/*|", "a|/dev/cciss/.*|", "r|.*|" ]
cache_dir = "/etc/lvm/cache"
cache_file_prefix = ""
write_cache_state = 1
sysfs_scan = 1
md_component_detection = 1
md_chunk_alignment = 1
data_alignment_detection = 1
data_alignment = 0
data_alignment_offset_detection = 1
ignore_suspended_devices = 0
}
[...]
# egrep -v "^#|^$|^ #" /etc/multipath.conf
defaults {
udev_dir /dev
polling_interval 15
selector "round-robin 0"
path_grouping_policy group_by_prio
failback 5
path_checker tur
rr_min_io 100
rr_weight uniform
no_path_retry queue
user_friendly_names yes
}
blacklist {
devnode loop
devnode sda
wwid 1ATA_Hitachi_HDS721680PLA380_PVE231ZETR48DU
}
multipaths {
multipath {
wwid 360050cc0006102f20000000000000028
alias PV550F12-UPPER
}
multipath {
wwid 360050cc0006102e80000000000000000
alias PV550F12-LOWER
}
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Kernel & Hardware
