Questions tagged [lvm]
In computer storage, Logical Volume Management or LVM provides a method of allocating space on mass-storage devices that is more flexible than conventional partitioning schemes.
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How to format NVMe drive in Linux suitable for raid 1 and lvm on xen Host
I want to create a software raid on two identical SSDs
How do I create partitions and format them optimal?
lsblk
nvme0n1 259:0 0 953.9G 0 disk
nvme1n1 259:1 0 953.9G 0 ...
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CentOS - lsblk showing added new space for mpath, but pvdisplay is showing previous space
Team,
I am working in a production environment and stumbled into a case where, a 3TB space from Storage has already been mounted and used for particular volume group called "ipdata_vg". Now ...
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how to create a new VG group on an installed Ubuntu Server 20.04
To give some context, I'm currently working on CIS Benchmark Hardening on the Ubuntu 20.04 on one of our product and I'm stuck on how to create a new vg group.
I have followed multiple way to do it ...
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Storage configuration leads to Ubuntu Linux Server Boot failure - ( initramfs )
Ubuntu Server 22.04 installation is completed and successful but the OS doesn't boot!
What does mean initramfs ?
I've tried to install Ubuntu Server 22.04 on VM.
Installation is completed and ...
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Can I copy the files in my original /opt directory after I mount a new LVM on the /opt?
I have new LVM on my Linux server and I want to mount on my /opt. I have files in the /opt directory and I know after I mount, the files will be hidden. Is it possible to rsync the files in the /opt ...
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CentOS LVM Extension Trouble
We have a CentOS 8 server that has recently had a lvm fill up on available space. This was not our monitoring system since it watches the disk space and not the volume space. Regardless I am having ...
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RHEL9.2 complains about missing /lib/modules/5.14.0-284.25.1.el9_2.x86_64 when rebuilding initramfs
The kernel on one of our RHEL9.2 servers was recently upgraded to 6.2.8 in preparation for a software upgrade but due to complications, we've had to revert back to 5.14.0-284.25.1.el9_2.x86_64.
I've ...
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LVM: Creation difference between CentOS 7 and CentOS 6
I have CentOS 6 & 7 server and am creating 512 MB logical volumes:
CentOS 7:
sudo lvcreate -v -n lvname -L 512M rootvg && sudo mkfs.xfs -L "lvname" /dev/mapper/rootvg-lvnamee
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Create Azure Red hat template with custom LVM partitions
I want to prepare Azure template for Red Hat 8 servers with packer and I'm facing problem with setting custom LVM partitions.
For example, I want separate /var/tmp, /var/log etc.
I deployed some VMs ...
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Can one VG (Volume Group) contain different types of PVs (Physical Volumes)?
The background is we have our database data directory on an LV which is located on a VG. We want to use the LVM's snapshot function to backup our database data, but this VG has no free PEs left. We ...
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pvmove: "Insufficient free space" when trying to move mirrored LV
Originally I had two PVs /dev/nvme0n1p2 and /dev/nvme1n1p1 containing various mirrored LVs.
I recently added two new larger capacity PVs /dev/nvme2n1p1 and /dev/nvme3n1p1, and expanded a LV (home/...
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File access on SSD array suddenly slowed down; TRIM appears to be unavailable. How to enable, or what else could it be?
We have a system that's used for a GIS database (with Postgres as the underlying engine) which is using a software RAID 5 array of 4x2TB Samsung EVO870 SATA SSDs as its database drive. There is a ...
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mount LVM2 dump or extract files
I have a dump of a filesystem. I dont know how it was created. I want to extract all the files and the filestructure.
file dump.bin says it is a LVM2 PV (Linux Logical Volume Manager) file and prints ...
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Storing each file on separate physical drives for a single file volume
I am working with a bunch of really large files (>100 GB). As we often process multiple large files in parallel (e.g. 10-12), we think that it might be advantageous to have each file be stored on ...
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Best Option for Compatibility of "Linux Journaling File System" and "Volume Manager" with Microsoft Azure VMs
I'm in the process of setting up a Ubuntu Desktop VM on a bare metal server using VMware vSphere.
Once the development process is complete, I plan to transfer the VM to Microsoft Azure VM ...
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LVM Thin pool performance with NVMe
I have 24 Samsung PM1733 7.68 TB and a server platform Gigabyte R282-Z94 with 2x 7702 64cores AMD EPYC. OS: Oracle Linux 8.6, 5.4.17-2136.311.6.el8uek.x86_64
I need this server for testing so I have ...
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Broken disks on LVM system
Hi I have searched all around to find this case.
I have a PC WITH 3 disk a main disk with os completly destroyed an another couple of disk with LVM on it
If I mount it under linux I can do:
sudo ...
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XCP-ng Local Storage SR on LVM is unplugged and errors when being re-attached
I have an XCP-ng cluster running XCP-ng 8.2.1 and following a patch and reboot the local storage SR is showing as unplugged. This is an XCP create LVM on a RAID drive, the same RAID drives contain the ...
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LVM mirror with failed disk can't be repaired
I'm trying to help someone resurrect a RAID1 mirrored LVM logical volume on an old server running Fedora 20 (lvm2-2.0.2.106, linux 3.19.8-100). One of the disks in the mirror is dead. The disk ...
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Cloudmin backup size
we are using Cloudmin under CentOS 7.9. to manage Xen virtual machines that use LVM. It's all backed up once a week (via Cloudmin's built-in backup system, which I think just uses dd). Last week I ...
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Differences between sfdisk and fdisk on LVM disk extend
In order to semi-automate LVM partitions extend on Debian 11 VMs clones from a template, I feel a bit stuck when I try to script it through sfdisk compared to interactive fdisk.
Here's the original ...
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LVM disk is corrupt - is any data recoverable?
Under RHEL7 we have a logical volume consisting of 27 volume groups PVs. Each of these VGsPVs was added sequentially as we ran out of space on the LV.
We do not have a backup of the data. There are ...
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Linux LVM - create a mirror, break it, take one of the pieces to a different system, use it there
Using LVM, I would like to create a mirror of a LV, sync it, break it off, attach the mirror-piece to a different system, use it there.
Start with a ordinary linear LV. Here is the procedure I have:
#...
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how to delete a xfs file system from logical volume (lvm2), to achieve the goal being this logical volume without any file system?
I have LVM RedHat 8 intall and there's one Volume Group there.
Fri May 19 [michal@Ora2 ~]$ sudo vgdisplay
--- Volume group ---
VG Name ol
System ID
Format lvm2
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Pooled storage with varying redundancy per file system
I have some files that I want stored mirrored. I have some files that I only need single copies (i.e. scratch data, easily regenerated data, etc). And I have some files that are so critical, I want it ...
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umount of logical volume failing during shutdown
In my system, multiple logical volumes are created, mounted and /etc/fstab entries are added after systemd starts up.
When system is rebooted for the first time, during shutdown many umount failures ...
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LVM not showing LV although it's in use
I have a machine with a RAID-1 (sda) hosting Debian 10 and a RAID-5 being used for storage (sdb), both using independent PGs. Recently the RAID-5 was corrupted, so I recreated it and set up the LVM ...
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Can mount on /mnt but not on other mount point, why?
this is an RHEL8 VM. I'm trying to mount a logical volume on /var (because I need more space). For now I have created a directory /xvar to mount on, but it doesn't work and doesn't show an error. ...
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Fixing LVM boot after disk clone
I have a NVME boot disk that was running low on space in my proxmox server. After using Clonezilla to clone the disk to another larger NVME things are unstable.
The boot disk has 2 Logical volumes on ...
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Oracle Enterprise Linux: Growpart 'cannot grow partition'
I've read a few blogs here on this but haven't come across similar situation as mine.
i have expanded the drive by 5GiB on /dev/sda
i have without rebooting made it visible by running the following ...
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How to extend LVM size
I have additional free space on my sda disk and I want to add this space to my LVM. How can I add this 2.5T space to my LVM without destroying the existing partition or losing any data?
sda ...
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Shrinking ESXi volume to reclaim unallocated space
We have a number of VMs (VMware ESXi) running Ubuntu. As a result of the installation time 'feature' which only allocates half the amount of the requested space, we have a lot of wasted/unallocated ...
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Cloning data from a damaged SSD
The SSD went into read-only mode, so you need to move the partition to a working SSD, but I encountered the fact that the LVM size is different:
#lvm pvscan
PV /dev/sdc3 VG pve lvm2 [&...
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Birth time of files are missing if file is created in a logical volume with size less than 512 MB
I have a volume group in my system, created with single physical volume.
I'm creating two logical volumes - one with size 100M and one with size 512M.
Any file created on LV with 100M size does not ...
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Disk Size is not Consistent Between fdisk and parted
I have noticed some difference in size displayed using parted and fdisk. I have a disk attached with a size of 20GB. Executing the fdisk command shows that the size is 20GB which is correct.
fdisk -l /...
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Used P2V to reduce size opf LVM VHDX - Issues with grub and booting now
Hi All hoping for some Linux genius advice
I inherited a VMWare VM cluster with a few production VM's
they were all way over provisioned and all have 1tb Thick drives
But are only using 100gb odd each
...
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Rocky 9.1 dracut fails to boot
My rocky 9.1 vm kernel is not able to load/boot/decrypt a LVM Luks2 volume during boot.
Booting with 5.14.0-162.6 works fine. But fails booting the latest 5.14.0-162.18 or 5.14.0-162.12 kernel, dracut ...
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Avoid Docker to write into /var/tmp
How can I tell docker to write data elsewhere of /var/tmp ? Like specifying another path, like /opt for example.
Because I often running out of disk usage on /var file system.
The challenge is that I ...
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Can't `lvconvert` when root is readonly
My root is mounted readonly (on purpose). I have a separate, read-write vg where I want to lvconvert --merge a thin snapshot. I'm getting Cannot archive volume group metadata for $VG to read-only ...
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Copied data to LVM-Thin pool by mistake
I'm here today because of a big mistake that I have made.
I created an LVM-Thin data pool (and not on a LVM-Thin LV) on my Proxmox server and (don't ask why) ran a mkfs.ext4 on the pool then mounted ...
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RAID + LUKS + LVM + BCACHE + BTRFS
I want build new structure for my data store (NAS - Ubuntu). Data storage will be 4TB at first. Then up to 8TB.
My old structure is simple:
RAID 1 -> LUKS -> FS
I need some wishes to new ...
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Creating a ramdisk with lvmvdo persistent across reboot?
I am trying to create a persistent ramdisk with lvmvdo with the below unit file but it does not seem to work.I have not added the --type vdo option to the lvcreate command yet ( this is for RHEL9 )
[...
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lvm cachepool disabled after single error on raid1 - is this by design? or coincidence?
I setup my computer as follows
Fedora 37 kernel 6.0.17-300.fc37.x86_64
lvm2-2.03.11-9.fc37.x86_64
sda - SSD
sdb - SSD
sdc - HDD
sdd - HDD
lvcreate -n root -L50G --type=raid1 rootvg sdc sdd
lvcreate -n ...
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grub error after kernel update with active root LVM snapshot
The situation:
debian 11 with LVM and / is a logical volume: /dev/mainvg/lv-root
created a snapshot of the root partition by doing lvcreate -L5G -n bkp_lvroot -s /dev/mainvg/lvroot
Now I updated the ...
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Cannot remove LVM snapshot
I am running Debian 11, using LVM.
The root partition is /dev/mainvg/lvroot.
I created a snapshot of the root partition by doing lvcreate -L5G -n bkp_lvroot -s /dev/mainvg/lvroot.
My system was in ...
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Growpart not working for LVM partition on Debian
I am attempting to use "growpart" to grow a partition on a vm that is using LVM. The command reports successfully, and seems to output the correct changes. Though, nothing happens after ...
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LVM thin pool show 100% usage
I've deployed openstack and used LVM as a backend for the cinder block storage, but after using it for a while I could no longer allocate block storage volumes , after checking the available space in ...
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LVM not recognised at startup, system does not boot (PROXMOX VM)
I'm facing a problem I don't know how to fix. I was trying to reduce size of a qcow2 file and I made a backup copy of the original file. After some problems with the reduced qcow2 file I decided to ...
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DRBD on LVM or LVM on DRBD with multiple disks
I have 4 identical servers each with 1+3 SSD for data (no RAID) + 2x10G & 2x1G net. I want to have an active-passive NFS setup with a single export.
Probably I will go with 2 clusters so 2 active ...
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AIX 7.1/ AIX 7.2 filesystem not persistently mounted across reboots and appears corrupted
OS: AIX 7.1 / AIX 7.2
Arch: ppc-64
I have created a custom (non-root) volume group homevg
bash-5.1# lsvg homevg
VOLUME GROUP: homevg VG IDENTIFIER: ...
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