pvcreate /dev/mapper/disk_bin : device not found

**trax** · 02-28-2011

Hi,

I'm facing a problem on Boot on San installation, Os is installed, now I'm trying to define mapper device for others lun/disk with alias for multipath references

Code:

# pvcreate /dev/dm-14 /dev/mapper/disk_bin_rac
  Device /dev/dm-14 created
  Device /dev/mapper/disk_bin_rac not found (or ignored by filtering).

i've certainly forgot smthing... but where?

my multipath.conf :

Code:

# cat /etc/multipath.conf
defaults {
        user_friendly_names yes
        rr_min_io               100
        selector          "round-robin 0"
        path_grouping_policy multibus
        features "1 queue_if_no_path"
        path_checker readsector0
        failback immediate
        rr_weight               priorities
        no_path_retry           5
        getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
 
}
 
devnode_blacklist {
        devnode "sda[0-9]*"
        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 {
        device {
        vendor "NETAPP"
        product "LUN"
        prio_callout "/sbin/mpath_prio_netapp /dev/%n"
        }
}
 
multipath {
               wwid                    360a98000572d575a50346165535a7478
               alias                   disk_boot1
 
}
 
multipath {
               wwid                    360a98000572d575a5034623869694b2d
               alias                   disk_boot2
 
}
 
multipath {
                wwid                    360a98000572d575a5034623869694b44
                alias                   disk_bin_rac
}

my lvm.conf :

Code:

# cat /etc/lvm/lvm.conf |egrep -v "#|^$"
devices {
    dir = "/dev"
    scan = [ "/dev" ]
    preferred_names = [ ]
    filter = [ "a/.*/" ]
    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 = 0
    ignore_suspended_devices = 0
}
log {
    verbose = 0
    syslog = 1
    overwrite = 0
    level = 0
    indent = 1
    command_names = 0
    prefix = "  "
}
backup {
    backup = 1
    backup_dir = "/etc/lvm/backup"
    archive = 1
    archive_dir = "/etc/lvm/archive"
    retain_min = 10
    retain_days = 30
}
shell {
    history_size = 100
}
global {
    umask = 077
    test = 0
    units = "h"
    activation = 1
    proc = "/proc"
    locking_type = 1
    fallback_to_clustered_locking = 1
    fallback_to_local_locking = 1
    locking_dir = "/var/lock/lvm"
}
activation {
    missing_stripe_filler = "error"
    reserved_stack = 256
    reserved_memory = 8192
    process_priority = -18
    mirror_region_size = 512
    readahead = "auto"
    mirror_log_fault_policy = "allocate"
    mirror_device_fault_policy = "remove"
}
dmeventd {
    mirror_library = "libdevmapper-event-lvm2mirror.so"
    snapshot_library = "libdevmapper-event-lvm2snapshot.so"
}

**HROAdmin26** · 02-28-2011

What are you trying to do?

The multipath daemon will look at the systems HDD's (as defined by filters in multipath.conf) and create a /dev/mapper device for each *unique* HDD.

A) What are the multipath devices?

Code:

multipath -ll

B) What are are the mapper devices?

Code:

ls -alh /dev/mapper

**trax** · 03-02-2011

Hi,

Thanks for your answer. I'vef ound my error :

i've deleted theses values (which concerned boot disk)

Code:

multipath {
               wwid                    360a98000572d575a50346165535a7478
               alias                   disk_boot1
 
}
 
multipath {
               wwid                    360a98000572d575a5034623869694b2d
               alias                   disk_boot2
 
}

and add

Code:

multipaths {

before multipath definition...

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