Device Mapper Notations and LVM Post: 302378000

9 More Discussions You Might Find Interesting

1. HP-UX

How to reduce LVM to create another LVM

Hi, I'm new to HP-UX. I have LVM on /var with 92Gig. I would like to reduce it to create another LVM for Oracle client with 800 meg or so. How to do it. I'm running 11.iv3 Thanks

2. Red Hat

device-mapper-multipath path [undef]

I have an HP blade with Qlogic HBA's connected to an EVA8000. I have downloaded the latest multipath.conf from HP's website. The drive presented to the server appears to be configured and working except the output of "multipath -l" shows for all paths. What is causing this output? mpath0...

3. Linux

If i don't have raid disks can i shut down dmraid device-mapper?

hello my centOS newly installed system loading dmraid modules on startup I did remove all LVM/raid things from system installation menus and after installation too but dmraid is still there and he says: no raid disks found also I did modprobe -r dm_raid45 and it do remove it but only until...

4. AIX

LVM & Raw device i/o comparison

Please consider this a question about basics&best practices. On AIX 5.3 system, three raw physical volumes are defined from storage. While doing a read with command dd from the raw device, the speed rate is 250Mb/s. Then, it gets complex when I define these three pv's to an lv of type raw. Doing...

5. UNIX for Advanced & Expert Users

lvm swapon failed Device or resource busy

Is there a trick to mounting swap in n a lvm? I can't get it to work. # swapon -va swapon on /dev/mapper/VG-lv_swap swapon: /dev/mapper/VG-lv_swap: found swap signature: version 1, page-size 4, same byte order swapon: /dev/mapper/VG-lv_swap: pagesize=4096, swapsize=4294967296,...

6. UNIX for Dummies Questions & Answers

How to convert non LVM root partition to LVM?

Hi Guys, I m using redhat 6, I have installed root partition as non-LVM . Is there any way i can convert it to LVM?

7. UNIX for Dummies Questions & Answers

What is /dev/mapper used for?

I see a folder named "mapper" in /dev. This folder "mapper" has some soft link to other folders. What is mapper folder used for?

8. Red Hat

Device-mapper behaviour booting on init=bin/bash

Good morning Recently we needed to change the password from a redhat 6.5 system that no one knew the root password. Starting the system with the init=/bin/bash method took us to the following scenario: system_vg active with only root_lv and tmpfs mounted. our entries at fstab are like...

9. UNIX for Advanced & Expert Users

Command to see the logical volume path, device mapper path and its corresponding dm device path

Currently I am using this laborious command lvdisplay | awk '/LV Path/ {p=$3} /LV Name/ {n=$3} /VG Name/ {v=$3} /Block device/ {d=$3; sub(".*:", "/dev/dm-", d); printf "%s\t%s\t%s\n", p, "/dev/mapper/"v"-"n, d}' Would like to know if there is any shorter method to get this mapping of...

LEARN ABOUT DEBIAN

f1tattoo

f1tattoo(1)							   f1tattoo 0.7 						       f1tattoo(1)

NAME

       f1tattoo - disc T@2 feature for Yamaha F1 CD-RW devices

SYNOPSIS

       f1tattoo [-l] [-h]
       f1tattoo -d DEVICE [-c] [-s] [--tattoo-test]
       f1tattoo -d DEVICE --tattoo-raw <file.raw>
       f1tattoo -d DEVICE --tattoo-png <file.png>

DESCRIPTION

       f1tattoo is the linux console tool to use the Yamaha disc T@2 feature. You won't get satisfying results on Phtalocyanin dye.

FEATURES

       You can disc T@2 with these drives:
       Yamaha F1 CD-RW, Yamaha F1DX

DEVICE

       can be an IDE, SCSI, SATA, USB or FireWire connected optical drive. Not all SATA controller support all Plextor features.

       Linux:
       /dev/hdX: IDE device
       /dev/scdX: Linux 2.4: SATA, SCSI, USB device, or IDE device via ide-scsi emulation
       /dev/srX: Linux 2.6: IDE device via new ATA layer, SCSI or USB device

       OpenBSD/NetBSD:
       /dev/rcdX

       FreeBSD:
       /dev/cd: SCSI device
       /dev/acd: ATA device

       MacOS X:
       /dev/disk:

       win32:
       C:,D:,E:, ... X:,Y:,Z:

OPTIONS

       -l, --scanbus
		 scan busses for all available CD and DVD devices.

       -h, --help
		 help. show available options.

       -c, --current
		 show current drive settings of selected device

       -s, --supported
		 show supported features of selected device

       --tattoo-test
		 write DiscT@2 test image

       --tattoo-raw tattoo.raw
		 write DiscT@2 using raw data from tattoo.raw file

       --tattoo-png tattoo.png
		 write DiscT@2 using png image from tattoo.png file	      check if f1tattoo compiled with png support using --help option

       -v, --verbose
		 give verbose output

EXAMPLES

       f1tattoo -l
		 list all available CD- and DVD-devices

       f1tattoo -d /dev/hdc --tattoo-raw filename.raw
		 writes DiscT@2 using filename.raw file on media in device /dev/hdc

       please report man page improvements to T.Maguin@web.de

Gennady ShultZ Kozlov						  10. April, 2009						       f1tattoo(1)