The lvm tag has no wiki summary.
0
votes
1answer
35 views
Moving a Logical Volume directly from one server to another over the network?
I have a KVM host machine with several VMs on it. Each VM uses a Logical Volume on the host. I need to copy the LVs to another host machine.
Normally, I would use something like:
dd ...
4
votes
1answer
58 views
XFS: no space left on device, (but I have 850GB available!)
I'm using a combination of mdadm, lvm2, and XFS on Amazon EC2.
So far, I've had success running a RAID 5 volume built from a number of EBS volumes. The EBS volumes are attached and used with mdadm to ...
0
votes
1answer
49 views
Disk /dev/mapper/VolGroup doesn't contain a valid partition table
How to fix "Disk /dev/mapper/VolGroup doesn't contain a valid partition table"
[root@localhost _work]# fdisk -l
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 ...
1
vote
1answer
35 views
delete lvm volume [closed]
Possible Duplicate:
Increase Linux Partition dynamically?
There are 3 lvm volume on Science Linux 6.1 x86. I want to remove one volume and give the amount to /dev/mapper/VolGroup-lv_root.
...
3
votes
1answer
56 views
SSD, Erase Block Size & LVM: PV on raw device, Alignment
I want to install a new SSD and use the the whole device as a PV for LVM - in other words: i don't plan to put even one partition on this device. So aligning partitions on the erase blocks is not ...
2
votes
0answers
87 views
How to keep filesystem layout identical in every RedHat Installation?
I want to keep the following layout same in every installation on the identical servers:
dm-0 /dev/VolGroup00/LogVol00
dm-1 /dev/VolGroup00/LogVol01
dm-2 /dev/VolGroup00/LogVol02
dm-3 ...
2
votes
2answers
34 views
reduce fsck time through lvm design considerations
I need to create two 9 TB file systems and i am struggling to design it. how does fsck work under the cover?
I have two options:
1. I create two 9TB LUNs at storage and create VG on them and then ...
2
votes
0answers
37 views
Areca RAID volume and LVM alignment
I have the following hardware:
1x - Areca ARC-1680IX-24 PCIe x8 SAS RAID Card
24x - Seagate Barracuda LP 2 TB 5900RPM SATA 3 GB/s 32 MB Cache 3.5-Inch Internal Hard Drive ST32000542AS
I plan on ...
1
vote
2answers
60 views
Increase Linux Partition dynamically?
Here is what I have on my Linux Box
[root@linxuph53 logs]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_linuxph53-lv_root
38G 11G 26G 29% /
...
3
votes
2answers
44 views
ext3 Snapshot Support
Does the ext3 filesystem support snapshotting? If so, is can this be done with straight partitions with no LVM?
An example of "straight partitions" would be the following:
/dev/sda1 /boot ext3
...
0
votes
1answer
46 views
Is this infrastructure safe for scaling EBS online?
Our application uses EBS to store data. The storage requirement of the application grows rapidly as users signup. We need to do it online so that users don't experience downtime with the application. ...
3
votes
1answer
31 views
What partition is my LVM with LUKS using?
I'm trying to figure out what partition dm-X is on. It's on /dev/sdaX, but which X?
What am I missing? I know there has to be a way to find this out. I need to grow my physical volume, but can't do ...
0
votes
0answers
16 views
How can I use the host's lvm VG as a kvm pool?
I have a machine setup with Centos6 as a virtualisation host. It has a single 250G hard drive that is configured as a single lvm volume group(vg_fluke). Now I would like to use the host's lvm as a ...
0
votes
1answer
31 views
resize a xen hvm disk
Ok,
I am trying to resize a Xen HVM disk. I have added the space to the vm as you can see here it is now 780GB.
--- Logical volume ---
LV Name /dev/VM_VolGroup/vm104_img
VG Name ...
1
vote
1answer
34 views
lvm snapshot: how to get a list of changed, added, deleted files?
i have an lvm snapshot and i would like to see what files have been changed, added or deleted. (Just the file list is sufficient.)
Is there an easy way to get the list?
Thanks in advance for any ...
-2
votes
1answer
164 views
4
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1answer
69 views
Is Microsoft's “Storage Spaces” just LVM for Windows? [closed]
From initial reading, it looks like Microsoft's forthcoming "Storage Spaces" is an LVM-like tool for Windows.
Is this a correct assessment?
If it's not merely LVM-for-Windows, then what is it, and ...
3
votes
2answers
90 views
lvremove claims LV to be open
frequently I notice that after a
$ sudo lvcreate vg -L 10G
immediately followed by a
$ sudo lvremove vg/<created volume>
I get the error message
Can't remove open logical volume "..."
...
2
votes
3answers
52 views
Correct starting sector for partition table on LVM?
Say I've got an LVM logical volume that I'm going to pass to a virtual machine (Xen, but I don't think this matters) to be used as a whole disk. The virtual machine is going to see that as /dev/xvda ...
2
votes
2answers
55 views
Are there any downside of creating LVM using raided device?
I want to use the performance of RAID-0 and flexibility of LVM for managing storage.
I have created RAID-0 using two disk of equal size and then created a PV and
included in VG. Then I have created ...
0
votes
0answers
15 views
how to migrate lvm mirrorlog from physical partition
Output from: sudo lvs --all -o +devices
root hp03 mwa-ao 18.62g root_mlog 100.00 root_mimage_0(0),root_mimage_1(0)
...
0
votes
1answer
53 views
Ubuntu Webhosting Server: RAID1 with LVM to run OpenVZ powered shared Apache hosts
About my confusion.
I'm trying to setup Ubuntu Server 10.04 LTS onto two 1 TB physical hard drives built into a server. I don't have a lot of experience with Ubuntu Server yet but I'm familiar with ...
1
vote
0answers
80 views
Imaging LVM-based Linux system to new computer: UUIDs change?
We are attempting to use Acronis TrueImage to copy the hard drive from one standalone Red Hat Enterprise Linux 5.5-based computer across to two others as part of a production operation. We are using a ...
2
votes
2answers
59 views
lvm over two raid1's - one slow, one fast. What will happen?
Two software RAID1's,
0: 2x 15K SAS drives, 73GB
1: 2x WD Caviar Green, 3TB
So the first RAID is a faster one, the second a slower data grave. What happens when I add both to a LVM logical volume ...
1
vote
2answers
52 views
LVM2/ext3 - Resizing /, var, and opt online?
Our QA department found a moderate issue this morning. It appears out server build automation software didn't quite work properly with the partitioning info we gave it, and failed back to an ...
0
votes
1answer
45 views
How can I slow down I/O operation in a disk when the LVM is being re-sized?
I want to re-size a LVM volume online in my Linux box.
It is taking very long time to complete, since there are I/O operations being performed on that volume.
Is there any way I can tell every other ...
1
vote
2answers
134 views
Dead software RAID CentOS 6
I have a RAID 5 array (with LVM on top) on a CentOS 6 box. The array itself is an LSI StorageTek disk shelf with 14 drives connected to the server with a fibre channel cable.
After rebooting the ...
0
votes
1answer
39 views
LVM and SAN nodes using raid5
Maybe this has been asked previously but I am unsure ...so here goes...
I have 3 DL380 nodes with each configured with raid5 and iscsi. Is it possible to use LVM on a head server with iscsi and ...
3
votes
1answer
111 views
What happens when a disk fails in LVM?
I am configuring a linux server on an ESX 4.1 host. This server needs to have several TBs of data stored on it. We are currently debating whether or not to use LVM. Our current reasoning is that is is ...
2
votes
2answers
142 views
All Xen domU LVM volumes corrupt after reboot
I'm running a Debian Squeeze dom0, and after rebooting it all 7 of my domUs have data corruption. Each is setup as ext3 partition directly on a separate lvm2 volume. None of the lvm volumes will ...
2
votes
3answers
146 views
On Ubuntu 11.10, is it possible to decrypt 2 hard disks encrypted with LUKS / LVM by entering only one passphrase at boot?
here the configuration I have :
- 2 hard drives,
- first one is encrypted using LUKS and LVM.
I'd like to add in the volume group encrypted a second hard drive.
I have successfully installed it and ...
2
votes
1answer
143 views
Turn off write barriers on ext4 whiche FS is mounted
I am doing some IO intensive DB imports that run for several days now and the IO performance has dropped tremendously over times. The DB data files (log files) are on an ext4 formatted logical volume ...
0
votes
1answer
29 views
convert currently used disk and new disk to lvm
Currently I have my home on an 1TB disk, which is an WD Green, thus not the most quick one.
I have an 2TB WD Green disk I want to use as well, and in a LVM fashion (Have heard that striped LVM could ...
4
votes
2answers
143 views
RAID0 (both hardware and md) slower than LVM?
I'm doing some benchmarking of nodes as we build out a distributed filesystem. Since files are going to be distributed and replicated across many nodes, we're using raid0 on the nodes themselves. ...
0
votes
1answer
63 views
Allignment of ext3 partition on LVM RAID volume group
I'm trying to add a partition on a LVM that resides on a RAID6 volume group and fdisk is complaining about the partition not residing on a physical sector boundry.
My question is, how do you ...
0
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0answers
31 views
Detect corrupted LV/partition encryption type and fix and mount
Due to several recent power outages and a failed UPS, an encrypted logical volume is no longer accessible. It has been a while but I'm sure the encryption was done by using Ubuntu's installer, so it ...
0
votes
1answer
100 views
fsck on LVM snapshots
I'm trying to do some file system checks using LVM snapshots of our Logical Volumes to see if any of them have dirty file systems.
The problem that I have is that our LVM only has one Volume Group ...
2
votes
2answers
75 views
Should swap space be in a logical volume, or directly on disk?
What are the benefits of putting swap into a logical volume over using direct disk access?
For example, with a fresh, default install of RHEL5 or 6, a volume group is created on the default disk ...
3
votes
2answers
121 views
Reasoning behind RHEL's use of LVM even on a single disk install
When doing a default install of RHEL5 and higher (at least - don't recall if it has done it longer), Anaconda will setup your drives into a logical volume group - even if there is only one drive.
...
0
votes
1answer
96 views
clvm, removing cluster volume group (FC)
Gents,
After having a bit of a fiasco with clvmd, I would like to start from scratch, and really not use clvmd, since in my case its almost not needed. I can easily have 'lvscan' incorporated in ...
1
vote
1answer
28 views
Can You Specify Where LVM Snapshots Are (Initially) Stored?
Disclaimer: this is my first time using lvm.
Upon RTFM, it appears that LVM snapshots are automatically stored in the same directory as the original logical volume. In my case, that would mean the ...
0
votes
1answer
74 views
How to revert a shrink of an LVM volume
I had a Linux LVM volume that was about 400 GB.
I shrank it to 217 GB following the steps below.
umount /local
e2fsck -f /dev/mapper/vg00-lvol2
resize2fs /dev/mapper/vg00-lvol2 217G
lvresize -L 217G ...
2
votes
1answer
101 views
Mounting an LVM EXT3 dd in linux
I'm using Ubuntu and am getting an error that tells me the filesystem can not be identified when I try to mount a LVM ext3 disk. I'm passing "ext3" as the type and have been able to mount ext2 disks. ...
1
vote
2answers
73 views
PVmove copies the data or move the data?
I executed a pvmove command between 2 volumes but now I can see the data in both storages. So does pvmove copy or move the data ??
command executed in servers
pvmove /dm/dm-1 /dm/dm-0
1
vote
3answers
58 views
LVM snapshot missing /dev and /proc tree
I created a lvm snapshot like so:
lvcreate -L 5G -s -n root-snapshot /dev/VolGroup00/LogVol00
Then I mounted the snapshot like so:
mount /dev/VolGroup00/root-snapshot /mnt/root-snapshot/
Now, ...
0
votes
0answers
78 views
RAID10+LVM2+XFS storage Postgresql 9.0
im having concept problems about how to organize mi system to store a postgresql database. I,ve read several docs about that but i cant get 100% sure about i am doing.
Hardware RAID10 I have created ...
1
vote
2answers
95 views
RAID1 and RAID5 configuration - LVM
I have a dedicated server, which has the following:
2 x 146GB drives in RAID1 - configured
3 x 600GB drives in RAID5 - unconfigured
The 2 x 146GB drives are currently dealing with everything, such ...
0
votes
0answers
62 views
Change size of LVM-partition using Virtualmanager
I use Virtualmanager for administer virtualhosts and storage on several KVM-servers (Ubuntu 10.04 and 11.10) and LVM for storage pools. Ubuntu 11.10 on the client side with Virtualmanager. It's pretty ...
1
vote
2answers
89 views
lvm2 restriping?
After some search I assume lvm2 restriping, as in take all extents of an active LV and redistribute them evenly across all current PVs in the VG, is not possible?
For example:
1 Volume Group with 6 ...
1
vote
0answers
238 views
squeeze with lvm on top of raid 0 fails to boot using grub2
GRUB Loading
Welcome to GRUB!
error: no such device: <GUID>.
Entering rescue mode...
grub rescue> ls
(hd0), (hd0,msdos2) (hd0,msdos1)
grub rescue> set
prefix=(hd0,msdos1)/grub
...
