Logical Volume Manager for the Linux kernel manages disk drives and similar mass-storage devices, in particular large ones. "Volume" refers to a disk drive or partition thereof.

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Creating lvm partition on raid

I have dedicated server with 3 ssd's (ubuntu 14.04) where are 2 raids. I want to make lvm partition for mysql. 20 gb mounted on / - raid 0 called device /dev/md1 (it is name of 3 ssd -- see below ...
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I can't access my LVM partition after RAID recovery

I need help after an accident with my RAID 5. I recreated it with: mdadm --verbose --create /dev/md2 --level=5 --chunk=64 --raid-devices=4 /dev/sdb4 /dev/sda4 /dev/sdd4 missing My array seems to ...
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14 views

LVM Physical Extents and Volume Group

I just bought a new hard drive, and I would like to use LVM on it. I created therefore a new physical volume with pvcreate, accepting the default settings (which is probably the wisest thing to do). ...
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28 views

how can I shrink logical volume and create new partition if the logical volume to shrink is present in the middle?

I have a HDD of size 120Gb, that has RHEL6 with 2 physical partitions sda1: /boot sda2: LVM managed Logical volumes VolGroup00 VolGroup00 contains following logical volumes /lv_root 36G /lv_opt 45G ...
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85 views

Gparted cannot resize extended or LVM partiton

I created a VM using VirtualBox and realized it was small. So, i managed (after some time) to create a new, bigger HD. Live GParted CD image (v.022): Now I need to integrate the unallocated ...
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30 views

Need to add Logical Volume, but don't have lvm, and yum says I have no space

I have a CentOS 7 server on SoftLayer. I only gave it 25GB of storage initially. Now it's full, so I ordered an additional 300GB of storage for it. My understanding (which comes from this article), ...
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16 views

How to mount this LVM volume?

I was trying to follow this article, but it looks like I failed: # fdisk -l Disk /dev/vda: 171.8 GB, 171798691840 bytes 16 heads, 63 sectors/track, 332881 cylinders, total 335544320 sectors Units = ...
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How to tune the XFS file system when you use LVM striping on top of HW RAID?

For example your LV strips (512k) over two PVs each HW RAID 7disk x 1MB RAID6. (what about if the LV is mirrored?) I cant seem to find information on tuning the su/sw values in this configuration. ...
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42 views

Increase size of a vdi fixed disk, used for a virtualized ubuntu server

I have a fixed vdi disk in an ubuntu server (it's a virtual machine, i'm using virtualbox for handle this from my ubuntu desktop so). I installed a lot of things, and the disk is full (i wasn't pretty ...
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85 views

lvextend gives insufficient suitable allocatable extents for logical volume set even free extents

I have one LVM with 4 physical disks (created with -i 4 option). I added 2 more disks to VG and trying lvextend which is failing. Below show I have 1TB of space Free in VG. $ sudo vgs VG #PV #LV #SN ...
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LVM: “Volume group is not consistent” and “Incorrect metadata area header” but volume still mountable

I'm on Ubuntu 14.04 with a volume group that has 4 disks in it: Incorrect metadata area header checksum on /dev/sde1 at offset 4096 Incorrect metadata area header checksum on /dev/sde1 at offset ...
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17 views

data recovery issue with LVM on degraded software raid array

I have a raid-10 array that is degraded to two remaining working drives. The software setup is Centos-Xen, so one dom0 and several domUs. I can see the names of the logical volumes and their names and ...
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27 views

Can't create LVM raid in Pidora

I'm experimenting with Pidora, trying to configure some reasonably redundant storage. [root@bravo ~]# lvcreate -d -v -m1 -L10G -n ${lv_name} ${vg_name} Executing: /usr/sbin/modprobe dm-raid ...
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54 views

Resize encrypted lvm volume and reallocate the space to windows partition

Here's a diagram of my solid state drive's partition setup. sda sda1 - boot (ext4) sda2 - LUKS Encrypted Partition LVM Volume Group Swap Logical Volume (ext4) Root Logical Volume (ext4) Home ...
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19 views

Get current metadatasize for an physical volume

Is there a way to get the current metadatasize for a phyisical volume. I used [root@i-6b4fb096 ~]# pvcreate --metadatasize 10000 /dev/sda4 Physical volume "/dev/sda4" successfully created ...
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53 views

Mount or extract data from LVM partiiton inside of a RAW IMG File?

I have a raw disk .img file (running file indicates that it is a "DOS/MBR boot sector" file). Running mmls produces the following output: DOS Partition Table Offset Sector: 0 Units are in 512-byte ...
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57 views

Cloning a Linux software RAID and LVM setup to another computer

I need to create a number of (almost) identical Linux machines (Debian Wheezy) with software RAID and LVM. I'm thinking of creating a base installation and cloning that one to all machines. I tried ...
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28 views

how can I reintegrate a lost and found pv into an LVM vg?

I recently lost a RAID that was a physical volume of one of my linux LVM volume groups. I ended up doing a vgreduce --removemissing and got on with the business of restoring the data. Well, today I ...
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53 views

KVM disabled by BIOS

When starting my Linux laptop I see KVM disabled by BIOS. What does this mean for encryption and security? There is no virtualizarion option in the BIOS. What can I do?
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Where is the speedup effect on using lvm2-cache

I recently discovered that LVM2 supports now caching: http://man7.org/linux/man-pages/man7/lvmcache.7.html The cache logical volume type uses a small and fast LV to improve the performance of a ...
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42 views

Multiple LVM and Multiple hard drives.. again

I have a little (and might sound stupid) question.. but google didn't got me to a solid answer in all the weekend. I am planning to make a file/webserver server for home/development use.. And I want ...
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104 views

LVM Recovery with a failing disk

I have an LVM setup on Debian 7.8 with kernel 3.2.65-1+deb7u1 running OpenMediaVault The LV is made up from 4 disks Disk /dev/sdb: 4000.8 GB, 4000787030016 bytes Disk /dev/sdc: 2000.4 GB, ...
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47 views

LVM safest management best practice for home workstation, in case of HD failure

My question is for a low cost home workstation, in a hard to replace hardware situation. So what is the best practice using LVM? and without raid. 1) I think I should create logical volumes ...
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39 views

Resizing LVM Partitions

I'm trying to resize a couple of my LVM partitions. I have one that is 850GB (/dev/mapper/cl-home) and one that is 50GB (/dev/mapper/cl-root). I'd like to make it so that cl-home is 750GB and cl-root ...
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63 views

LVM's & LVM Data recovery: 0 logical volumes in volume group

I am trying to recover data from my ssd on /dev/sda. However the way fedora installs itself is with lvm's and i dont know much about that so mounting something like that is different from the ...
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194 views

Booting Gentoo on LVM inside LUKS with gpg encrypted keyfile

I'm trying to install Gentoo on LVM logical volume inside LUKS container encrypted with key file encrypted by GPG with passphrase. Everything was going smoothly until I tried to boot. I'm building the ...
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318 views

Performance of LVM's 'lvconvert' when mirroring is low

I recently setup a box to use LVM mirroring. I have two separate 2 terabyte hard drives that are SATA drives. I am using the controller on the motherboard and a add-in card in a pci express slot. Once ...
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15 views

Moving LVM encrypted swap from sda to sdb?

I have configured an encrypted home folder. Naturally this implies that swap falls into the crypto catagory. I have installed a second disk with a swap partition already ready to go and ready to be ...
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206 views

Any performance implications of LVM and ZFS snapshots over time?

Is it bad practice to take and keep LVM or ZFS snapshots over the long-term as backups or archives? I agree snapshots are no substitute for making a second (or third) copy to take off-site, for ...
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74 views

Convert existing partitions to LVM and boot

I've an Ubuntu PC with one of ext4 and swap, both physical partitions. I have seen this answer which talks about converting the partitions in place. That's all well and good except I don't know what ...
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Growing an encrypted RAID5 array without causing alignment issues

Question Is there anyway to tell mdadm to make sure a certain logical sector on the RAID-device stays aligned to the beginning of a stripe when growing a RAID5 array? Problem My RAID5 is encrypted ...
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198 views

Access an NTFS volume in Linux LVM from Windows

my system dual boots Windows 7 and Debian Linux. My linux partition uses LVM with a root swap setup. My swap size is 18 GB and the root size is 2 TB. I resized my root partition to 750GB to give me ...
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135 views

Where is Linux root filesystem on an attached drive

I have a CentOS system with many configurations/applications installed on a hard drive. I have installed a new CentOS system on a different hard drive. I have booted from the new system/hard drive and ...
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100 views

Debian: How to boot from btrfs root on LVM on USB?

Using debootstrap I have installed a Debian wheezy system on an external USB drive with the following partitioning layout: /dev/sda: GRUB in MBR L sda1: ext2, /boot L sda2: LVM PV L ...
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140 views

installing encrypted manjaro linux with windows

Im trying to install manjaro linux (which is based on arch linux) beside windows 8 (MBR) on my SSD as a encrypted LVM system. I tried doing this through the gui installer but am unable to find LVM ...
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62 views

Partitioning a 3TB Drive Using GParted Live CD for Use in CentOS

The CentOS 7 Installer uses fdisk to perform the partitioning. Unfortunately fdisk can only make 2TB partitions. I am going to try and use a gparted live CD to create a 3TB partition and then setup my ...
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How do I permanently reset the UUID of an LVM partition?

A (dd cloned) backup of my boot partition left me with duplicate UUIDs. blkid shows: /dev/sda1: UUID="32579810-0388-416d-bb49-7031ac2c2975" TYPE="ext4" ... /dev/mapper/raidgroup-osbackup: ...
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Periodic backup of changes on another disk from full backup

I am looking for a backup solution that will enable me to backup only changes to an internal disk after a full backup to an external disk. Also, this should run snapshot backups every day until the ...
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285 views

LVM: How to enlarge the extended partition without data loss?

How to enlarge the extended partition without data loss? Note that I have a LVM logical partition inside of this extended partition. # fdisk -l Device Boot Start End Blocks Id ...
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395 views

Remove a Physical Volume from VG with no free PE

I have LVM2 setup containing 2 Physical Volumes sda5 and sda6. Both Physical volumes are included in a single Volume Group VG, which inturn contains only one LV. The LV uses all the memory of the ...
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182 views

Is there something wrong with my disk partition?

# fdisk -l Device Boot Start End Blocks Id System /dev/sda1 * 2048 499711 248832 83 Linux /dev/sda2 501758 41940991 20719617 5 Extended ...
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149 views

BTRFS or LVM heterogeneous RAID

I'm entertaining creating a largish (3.5TB+) backup server for my family. I already own enough hardware, and I don't want to buy any more right now. The config I envision look like this: Two 1TB ...
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214 views

vgdisplay shows 0 free PE/size

I'm trying to configure a CentOS HA system with 2 nodes, with DRBD for replicated storage. I'm following the "Clusters from Scratch" guide, and at the DRBD portion, I need to create a partition for ...
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2answers
596 views

XFS Incorrect statement of “No space left on device”

I have a server setup of an XFS partition on LVM on a Ubuntu 14.04.1 LTS. While copying files to the home partition, "No space left on device" is displayed. df -h displays sufficient space: ...
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125 views

How to realocate space from the Swap partition to the ext4 'normal' partition in Ubuntu?

My Linux is running in a VM for which I allocated half of the physical amount of RAM (32 div 2) and 20 GB of disk space. I can see the structure of my disks. The 'linux swap' partition took 16GB. ...
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101 views

Linux Disk Usage and Disk Size don't agree [Fedora 11]

I'm having an issue on a Xen VM where (running as root) df and baobab agree that 94% of my disk is used (25G out of 28G), but du only counts a fraction of total disk utilization (3.3G). The server ...
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Confusion while cloning the ubuntu

Currently I am working on an Ubuntu system (which is not mine). Now I have to create a backup on the other hard drive, such that I can replicate/install my whole system on the other system. After ...
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2answers
189 views

Is there something analogue to LVM logical volumes in BTRFS?

I like the way BTRFS does snapshots and subvolumes but it does not feel right to use LVM just because I want my logical volume to be of certain size. Is there something analogue to LVM logical ...
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200 views

Recover LVM with software raid

I have a Synology NAS using SHR mode, which is basically LVM and Raid 5. Somehow my LVM volume became corrupted and won't mount anymore. This volume houses over 20TB of data, and most of it is NOT ...
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299 views

mounting and accessing Encrypted LVM after reinstallation of Linux

I had Fedora installed on a LVM & had my /home & another file systems in it encrypted. ( i remember the passwords but forgot the cipher protocol used ) Now, I installed Ubuntu without ...