1
vote
1answer
46 views

How do I replace the root filesystem (ext4) with a new one in LVM with one which has more inodes?

I have a few systems which have been running over a decade in a cluster on SLES 10 (now long past EOL). We're migrating to CentOS 6 64-bit. I got everything done but the final data syncs, and lo and ...
0
votes
1answer
66 views

Which file system was I using?

This is an odd question of a somewhat forensic nature. I was running a server, which originally had openSuse 11.4 installed, and was upgraded twice (to v12.3 and v13.1). Recently, an update messed up ...
0
votes
1answer
79 views

Are there performance or reliability concerns when spanning an LVM partition across multiple 2TB RAID virtual disks?

I'm preparing a Dell R520 PowerEdge server with 8x 1TB disks as a data archive/warehouse (file, RDBMS, NoSQL) server. Out of the box, the PERC H710P RAID controller was configured with 3x 2TB RAID6 ...
0
votes
2answers
121 views

Expandable Linux filesystem w/ redundancy & support for different drive sizes?

I did a bit of research already and didn't come across any filesystems so far that have the following features: Expandability, Redundancy, and the ability to utilize the full capacity of different ...
0
votes
2answers
54 views

LVM system space is not consistent

I have found some problem in my server, here it is: df -H | columt -t Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_test-lv_home 212G 177G 25G 88% ...
0
votes
1answer
106 views

Add new partition to Centos hard drive

My hard drive currently has (I believe) 2 partition; boot (sda1) and everything else (sda2?). Some of the hard drive is also being used as swap memory, but I don't really understand how that effects ...
-1
votes
1answer
70 views

Storage virtual machine. LVM or loop devices? [closed]

Actual situation: I'm the administrator of a virtual machine. The virtual machine is a Debian. This machine will be mainly a storage machine with different services (svn, ftp... ), and a webserver. ...
1
vote
0answers
178 views

Ubuntu 10.04 Server stuck at grub prompt

I have a virtualized server running 10.04 LTS that is no longer booting. We had a number of issues with our SAN that abruptly disconnected the storage from the virtual machine infrastructure and ...
1
vote
1answer
646 views

Problems mounting HPUX LVM+VXFS filesystem on Linux

I have a physical disk from a HPUX system that I need to access from a Debian Linux for ia64 system. From the hpux-lvm-tools project I have the tools to access the HPUX LVMs (Linux LVM has a different ...
-1
votes
1answer
316 views

How to mount logical volume?

I have this problem on mounting a logical volume. I have done some research and still have not found solution. I have read this http://superuser.com/questions/116617/how-to-mount-lvm-volume also but I ...
0
votes
0answers
593 views

XEN Domain crash - kernel panic

I have a server with CentOS 5.8.Final, running the 2.6.18-308.4.1.el5xen kernel. I installed the Virtualizorpanel 2 months ago and my VPS are OK, but yesterday one of my VPS crashed. I changed theRAM ...
-2
votes
4answers
414 views

How can I create one big volume from multiple drives, but loose only the files stored on one disk if it fails?

I am running a storage system. Fault tolerancy is handled at application level (files are stored on multiple servers, even datacenters). Therefore I don't need nor even want redundancy within one ...
5
votes
1answer
2k views

Resizing a LUKS encrypted volume

I have a 500GiB ext4 filesystem on top of LUKS on top of an LVM LV. I want to resize the LV to 100GiB. I know how to resize ext4 on top of an LVM LV, but how do I deal with the LUKS volume? ...
0
votes
0answers
947 views

Can't mount logical volume, RAID/MD/LVM problems

I have a file server with 48 2TB HDDs split across 2x 3ware 9650SE-24M8 RAID cards. Both cards have 24 drives in RAID 1+0. MD softraid is setup in raid 0 with the two RAID 1+0s making RAID 100. LVM2 ...
1
vote
1answer
2k views

How to increase filesystem size in RHEL v5.8?

Below is the partial output from the df -h command. Notice /var is setup as its own filesystem but has reached 100% of its 2GB size. How can I increase the size of the /dev/mapper/rootVG-var file ...
2
votes
1answer
770 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 ...
4
votes
2answers
4k views

How to remove bad disk from LVM2 with the less data loss on other PVs?

I had a LVM2 volume with two disks. The larger disk became corrupt, so I cant pvmove. What is the best way to remove it from the group to save the most data from the other disk? Here is my pvdisplay ...
5
votes
3answers
696 views

Which filesystems offer snapshot functionality for users to recover data?

I'm working on a project that will teach linux to youth. Knowing they will have a tendency to delete or corrupt items in their home directories we are looking for a good snapshot option. We will not ...
105
votes
4answers
29k views

LVM dangers and caveats

I have recently started using LVM on some servers for hard drives larger than 1 TB. They're useful, expandable and quite easy to install. However, I could not find any data about the dangers and ...
1
vote
3answers
1k views

How to transfer data from Linux to Solaris (OpenIndiana)?

I currently have my server setup with a Linux software RAID5 (mdamd). I have LVM on top of that, with ext3 filesystems on the Logical Volumes. This setup is mirrored on an external multi-drive ...
2
votes
1answer
883 views

25TiB for /home from 16TiB, what to do with ext3?

I have recently lvextend my logical volume (where /home is) from 16TiB to 25TiB. However, when I try to run extend2fs on my /dev/vtrak/home, it complains that resize2fs 1.41.12 (17-May-2010) ...
1
vote
2answers
2k views

LVM input/output error

When I run the lvdisplay, it showed the following error... /usr/sbin/lvdisplay /dev/sdb: read failed after 0 of 2048 at 0: Input/output error /dev/sdb1: read failed after 0 of 2048 at 0: ...
1
vote
3answers
354 views

linux raid 1 to lvm or not to lvm

I am getting ready to create a (hardware) RAID 1 array spanning three disks. Performance is not key here, just redundancy and ability to recover from data failure. The question: Should I use LVM? ...
1
vote
2answers
822 views

How can I minimise the size of an ext3 partition (and its LVM logical volume)?

I am using LVM on Ubuntu 9.10 (Karmic). I have a single LVM physical volume (and a single volume group). I have an ext3 filesystem inside an LVM logical volume which I no longer use, but for the time ...
16
votes
8answers
1k views

Optimal UNIX File System Partition + Setup Strategy

When partitioning a new system disk(s) for UNIX, what is your prefered strategy for both desktop and/or servers? Please include disk partition layout, file system format(s) and options, mount points, ...