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Operating Systems Linux Red Hat Device Mapper Notations and LVM Post 302378002 by fpmurphy on Sunday 6th of December 2009 10:22:59 AM
Old 12-06-2009
Quote:
Is this normal behaviour or have I done something wrong?
Yes, it is normal.

Quote:
is there a way to find a mapping between the device mapper notations and the corresponding lvm volumes?
Yes. Remove "/mapper", replace '-" with "/". Thus
Code:
/dev/mapper/VolGroup00-LogVol01

becomes
Code:
/dev/VolGroup00/LogVol01

 

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DMEVENTD(8)						      System Manager's Manual						       DMEVENTD(8)

NAME
dmeventd - Device-mapper event daemon SYNOPSIS
dmeventd [-d [-d [-d]]] [-f] [-h] [-R] [-V] [-?] DESCRIPTION
dmeventd is the event monitoring daemon for device-mapper devices. Library plugins can register and carry out actions triggered when par- ticular events occur. LVM PLUGINS
Mirror Attempts to handle device failure automatically. See lvm.conf(5). Raid Attempts to handle device failure automatically. See lvm.conf(5). Snapshot Monitors how full a snapshot is becoming and emits a warning to syslog when it exceeds 80% full. The warning is repeated when 85%, 90% and 95% of the snapshot is filled. See lvm.conf(5). Thin Monitors how full a thin pool is becoming and emits a warning to syslog when it exceeds 80% full. The warning is repeated when 85%, 90% and 95% of the thin pool is filled. See lvm.conf(5). OPTIONS
-d Repeat from 1 to 3 times (-d, -dd, -ddd) to increase the detail of debug messages sent to syslog. Each extra d adds more debugging information. -f Don't fork, run in the foreground. -h, -? Show help information. -R Replace a running dmeventd instance. The running dmeventd must be version 2.02.77 or newer. The new dmeventd instance will obtain a list of devices and events to monitor from the currently running daemon. -V Show version of dmeventd. SEE ALSO
lvm(8), lvm.conf(5) Red Hat Inc DM TOOLS 2.02.95(2) (2012-03-06) DMEVENTD(8)
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