A partition is a means of logically dividing a computing resource (most frequently disk storage)

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does the number of lvm logical volumes affect ssd performance

Please let me know what your thought are on this. I've installed Ubuntu multiple times on a msata ssd mS200S3 120GB. There is a noticeable decrease of read performance on the exact same hardware for ...
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507 views

How to automatically increase the partition size of multiple Ubuntu nodes in VMware vSphere?

We have dozens of Ubuntu nodes where I have to resize the hard disk drive to different sizes. Currently I’m doing all of the following steps manually: Increase the size of each node’s virtual hard ...
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2answers
260 views

mkfs on raw software raid device or partition

I am making a huge RAID10 device (8 TB) for storage on CentOS. I have created the 4 partitions on my 4 physical hard disks and have created the raid device /dev/md2 out of those 4 partitions. Now ...
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2answers
1k views

Mdadm won't create an array larger than 10TB

I have a server with six 4TB drives running Ubuntu 14.04 LTS. One of the drives is used for the system/OS I wanted to use the other 5 drives to get as close to 20TB of storage as possible It's a ...
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1answer
90 views

Fiberchannel disk Centos6.5

I got some fiberchannel disk shelves including several 300Gb SCSI drives and a HP c7000 blade system with multiple blades in it. As there is no storage controller (filer) available i have to do it ...
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3answers
142 views

Expanding ext3 /usr partition safely with minimal downtime

I have inherited a Centos 5.5 server provided by Softlayer. My /usr partition is filling up, and I can't see any quick wins by deleting cruft. It looks like the sheer number of cpanel accounts is to ...
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2k views

No device file for partition on logical volume (Linux LVM)

I created a logical volume (scandata) containing a single ext3 partition. It is the only logical volume in its volume group (case4t). Said volume group is comprised by 3 physical volumes, which are ...
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378 views

Ubuntu Preseed Raid 1 with multiple partitions

I intend to create the following RAID 1: Partition Size Filesystem / 20GB ext4 /boot 500MB ext4 swap 2GB swap /backup 10GB ...
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2answers
4k views

How can I create a swap partition on Amazon EC2 with ephemeral storage?

This is the output of df -k: Filesystem 1K-blocks Used Available Use% Mounted on /dev/xvda1 10317860 7059008 2734732 73% / none 847584 0 ...
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1answer
199 views

ubuntu 12.04 combine hard disk partiions

I´ve a Vm with Ubuntu 12.04 installed. Thus the hard disk is running out of disk space my plan was to increase the disk space and after that expand the existing root logical volume with a newly ...
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128 views

partition turned read only after mysql crash

I am not able to write on a particular partition. The mysql data directory is hosted on that partition and it suddenly became read-only when mysql crashed on a query. [root@ESERVER new_dir]# > ...
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1answer
231 views

How can I place /tmp, /var, /opt, and /usr/local into a /data partition instead of the / partition?

I want to partition a CentOS 6.5 server that has 4 RAID VDs: sdb - 102398 (100GB) sdc - 2185727 (2TB) sdd - 11440639 (11TB) sde - 11440639 (11TB) So that I can have the majority of the disk space ...
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2k views

Redhat resize Partition

First off, I'm an absolute newbie in Linux, but I've been tasked to automate the process of resizing a partition on RHEL 6.5. The server resides as a virtual machine in VMWare, and we are trying to ...
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1answer
141 views

how to add a raw device on RHL

I am using a server to which someone added a harddisk. I am struggling to get this to work. I am a regular Linux user (but haven't done this stuff before). I have googled up and tried to follow the ...
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4answers
22k views

How can I un-mark a partition as active?

Overview: I use a backup storage enclosure with 6 backup drives incrementally backup up and taken off-site. One day I noticed that the backup process was failing. I logged onto the server that is ...
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2answers
157 views

Impossible remove Logical Volumes or Volume Group LVM2 [closed]

After a disk crash part of a LVM group, I can't use LVM2 properly. If like delete a Logical Volume impossible (Error on SATA Volumen) lvscan Couldn't find device with uuid ...
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1answer
684 views

Resizing Partitions on Live RHEL/cPanel Server

I've resized many partitions over the years on Linux, Windows and Mac OS X -- but always using a GUI. However, the time has come where the preset partition sizes my data center placed on my server ...
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1answer
61 views

Server 2008 R2 Disk Managment Shows D:\ as 2 separate partitions

Original config of Poweredge T110 was a 250GB SATA. This was 40GB C:\ and rest D:. It only has 9% free, so, I decided to just put a 2TB drive in, and make it D:\ instead. So I extended my drive ...
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How can I find out what hard disks are attached to a Linux box?

Here's an easy question for you guys: How do I find out what hard drives are attached to a linux box? I'm hoping for a single command that can give me a nice list of all ata/scsi/etc drives. I've ...
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1answer
213 views

Creating a local partition with iPXE

Is it possible to create a local partition from an ISO or a similar filetype either within iPXE itself, or with the help of another network boot program? I know PXE is usually used for "diskless ...
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1answer
190 views

Mount /usr on different partition

I want to mount /usr directory on different partition and keep the same owner on all files and subdirectories in /usr directory. I want to mention that this issue is for linux ec2 machine where I ...
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3answers
167 views

Strangeness during Windows Server Install (drive duplication) [SAN]

I have recently taken over as an administrator for an IBM chassis and associated blades, along with accompanying IBM SAN. One of the blades is running VMWare ESXi 5, and we don't need it anymore, so ...
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55 views

Why the root partition is not reduced after attaching new partition to the /var directory?

This is my disk state before attaching new virtual disk: Filesystem Size Used Avail Use% Mounted on /dev/xvde1 4.9G 4.6G 1.3M 100% / tmpfs 828M 0 828M ...
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3answers
126 views

Moving partitions to the root partition

I am currently stuck with a restrictive partitioning scheme that makes my partitions fill up. It looks like this: /dev/sda7 870G 315G 511G 39% / /dev/sda6 2.0G 271M 1.6G ...
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290 views

reached the maximum partitions on my virtual machine

I have a virtual machine and I extended the size since I needed more space. Here is what I have and the message I am getting: I was reading up and I saw some references to diskpart.exe and it gave ...
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Why are there only four primary partitions on an MBR disk?

I'm reading the docs over at CentOS.org. In section 25.1.2. Partitions: Turning One Drive Into Many, there is the following statement: The partition table is divided into four sections or four ...
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2answers
165 views

Is it possible to extend a partition with another partition blocking it?

I have an Ubuntu VM that I am trying to extend. It is currently 20 GB total, with 19.12 being the main partition, with an 895 MB partition at the end. I am trying to extend the large partition to be ...
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1answer
95 views

How to add partition table to existing EXT4 filesystem

I have software RAID6 on 8x3TB disks (18TB), there is filesystem od device /dev/md1, but EXT4 can`t be bigger than 16TB so there is 2TB of free space. I would like to use this space. My first idea was ...
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137 views

Can LVM and Traditional Partitions Coexist?

Can you set up a machine in which different drives are formatted as either LVM volumes or as traditional partitions and mix and match the two? For e.g. have the LVM volume mounted as / and /home and ...
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155 views

shrink live mdadm partition with LVM

My goal is to shrink an mdadm RAID 1 partition while the system is running. I have to disks sda and sdb, which build my two RAID partitions md0 and md1. On md1 I use LVM, md0 is the /boot partition. I ...
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1answer
99 views

size of extent on LVM2

in LVM1 there was a limit of 65k extends. So size of extent had to been chosen carefully between wasted space on partitions (to big extent) and maximal possible size of logical volume (too small ...
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428 views

Ubuntu Server install claims 3 TB RAID1 volume is 801.5 GB

I have a brand new server containing two identical 3 TB SATA disks. These are in a hardware RAID1 configuration using the onboard Intel RAID controller. The BIOS sees the two disks as 3 TB and the ...
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2answers
171 views

Should I really leave some space unused with LVM partition?

I am migrating to a new server where I'm going to use LVM partitioning on a RAID 1 array (2 hard drives). I have read some tutorials which advise to leave some space unused so that I can expand the ...
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1answer
36 views

CentOS extend home partition multiple times

I allow my clients to ask an unlimited number of times to extend the hard drive. Although, after 2 times, there is no physical volumes left to create. How can I still extend sda1 or sda2? Is it ...
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86 views

What is the best way to resize the “/” mount point that is not LVM?

Lately I am trying to update the packages in my Centos (Physical Box) and got error about not enough space. What is the best way to resize a mount point that is no LVM? Follows are some information: ...
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Ubuntu: Resize the root LVM(2?) partition

I have an Ubuntu virtual machine running in VirtualBox 2.2.4, and I created it on an 8gb virtual disk which is too small. So, I am trying to increase the size of the disk. So far, I have done this: ...
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3answers
978 views

Change partition size on a Windows 2008 R2 server

I'm trying to transfer 60 GB of free space from D:\ to my system partition C:\ With the disk manager I was able to remove 60 GB from D:. Assigning it to C:\ seems to be problem, because the empty ...
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1answer
332 views

Format and partition device-mapper in LVM

I have a disk on a server: /dev/VolGroup00/LogVol02 that is about 5TB. I would like to format and partition it to make 2 500GB mount points. It doesn't even have to be in LVM. How can I take this ...
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433 views

Mounting individual “partitions” from a ddrescue'd whole-device image file?

I ddrescue'd from a sick drive device into an image file (I had enough free space, but not a spare device to copy onto). It seemed to go quite well, but now I can't find how to mount just one ...
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947 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% / ...
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How to partition the drive in linux centOS

The command df -h says following Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol00 18G 3.3G 14G 20% / /dev/sda1 99M 12M ...
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172 views

Downside with moving pagefile to different drive

I've been tasked with managing an old Windows 2003 server which will be decommissioned later this year. I just need to keep the server up and running long enough. The space on the server is running ...
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3answers
173 views

Which directories in Linux must be part of the root filesystem?

I'm building a few virtual machines under KVM where the base system will be an image (haven't decided specifically which format yet), and all of the remaining system files will be other partitions ...
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1answer
787 views

VMWare ESXi 4 VMFS Recovery

Had a big time problem with our ESXi 4 on a IBM X3400 M3 with LSI MegaRaid. 4 x 1TB in RAID 10, for 2 datastores of 1 TB. Haven't done any maintennance since 2010. My own big sin! 80) From system ...
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2answers
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HP DL320e Gen8, 3TB drives, Windows Server 2012 R2 - HDD full capacity alocation difficulties during installation

One interesting task to do but not so easy as i thought. The server is HP DL320e gen8, The main difficulty is with partitioning the RAID1 (2x3TB HDDs) during the installation on 2 partitions (System ...
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243 views

Linux disk space - partitions

$df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_app001-lv_root 32G 30G 0 100% / tmpfs 7.8G 0 7.8G 0% /dev/shm /dev/sda1 ...
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Splitting web project across multiple partitions on Linux (SSD, HDD and RAM Disk)

I've got a web project that pretty much consists of three parts: Code, Assets and Cache. I'm thinking of splitting it through multiple drives - Put my whole Code into SSD partition, Assets onto big ...
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3k views

How to shrink Linux partition (sda2, type is Linux LVM)

I have sda disk with 2 partitions. The second partition sda2(which is LVM) is 1.4TB in size and want to shrink to 50GB. I reduced Logical volume to 50GB but when I run vgdisplay it shows Free PE / ...
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How can I resize a LVM partition in Red Hat without lose of data?

My partition detail is like this /dev/mapper/VolGroup00-LogVol00 57G 8.8G 46G 17% / /dev/mapper/VolGroup00-LogVol05 259G 7.0G 239G 3% /home ...
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1answer
174 views

Shrinking Linux Partition and VM's

I have a Centos 6.2 x86_64 Virtual machine running on an EXSi 5.1 Server. It currently use 320GB of space which is way too much space and need to be shrunk to about 80GB. What I need to do is reduce ...