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

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Disk Partitioning and Layout with LVM

I am trying to determine the best disk configuration/disk layout/partitioning scheme for a large, virtualized, multi tenanted environment. Our current scheme is very similar to rhel/centos defaults, ...
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Is it possible to set the backing FS directory of a specific LXC?

So they don't all go to the same folder (e.g. /var/lib/lxc)? This would let the user take advantage of other partitions/disks when the default one becomes full. lxc version: 1.0.6
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Server virtual processors and processing units

I am using PowerVM hypervisor with AIX operating system, and having troubles understanding the difference between virtual processors vs processing units. Here is an example: I have got a server with ...
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Why is the BOOTMGR inside of the MBR?

According to the MBR strcuture definitions I have found, the partition table data should be within the bytes ranging from 446 to 510 of the first block of the disk. However, when I run: sudo xxd -g 1 ...
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1answer
193 views

Create Windows Recovery Image on Windows 8.1

I'm deploying some Lenovo ThinkPads for a small organisation. I want a simple recovery option if a user munges up their system. Luckily, they come preconfigured with the windows recovery partition ...
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1answer
259 views

fdisk -l return cannot open /proc/partitions

I have a Debian server with 4.5Go on the /dev/simfs partition. Filesystem Size Used Avail Use% Mounted on /dev/simfs 4.5G 3.2G 1.3G 72% / tmpfs 474M 76K 474M 1% /run ...
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2answers
71 views

Multiple physical volumes in a block device

I have a single (unpartitioned) block device in a server which is used as the single physical volume (pv1) to a volume group (vg1). Without attaching more storage to the server, is there any way to ...
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1answer
343 views

LUKS partition recovery

A drive with 2 partitions - the first partition is plain ext4, second one is encrypted LUKS. The partition table has been overwritten. I've found the beginning of the second partition, which I need to ...
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1answer
225 views

Is there a way to create an EFI partition smaller than 1MB or am I reading partition sizes wrong because the disk has been converted to Dynamic

I have been trying to get add a Mirror to my System drive in Windows Server 2012 R2 and I've been getting the error: All Disks holding extents for a given volume must have the same sector size ...
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1answer
259 views

testdisk can see my partitions but cannot recover them all

my NAS got a corrupted partition table yesterday (I don't know the cause) Now I run testdisk and I get this in the first analyze step: Partition sector doesn't have the endmark 0xAA55 However when ...
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1answer
6k views

Why can't diskpart clean my disk?

I have a Hyper-V Core Server 2012 R2 with the following disks: Disk 0: SSD C:\SSD (mount point to Disk 1) Disk 1: HDD C:\ (boot drive) Disk 2: RAID-5 (not mounted) Disk 3: RAID-0 ...
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1answer
237 views

Directories inside /var are on root partition not /var partition

Few weeks ago I installed Opensuse 13.2. I partitioned the disk so that root '/', /var, /tmp and /home are on different partitions. Today I noticed that although /var is on partition sda8, all ...
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2answers
54 views

I mixed the arguments of sgdisk -R /dev/sdY /dev/sdX

I have two raid1 arrays and an LVM partition across both raid arrays. A disk died and I tried to copy back the partition table of the other member to it using sgdisk -R But I mixed the arguments, ...
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1answer
42 views

Abstract physical drives to create a resizable raid array: is it possible?

I want to set up two hard drives with a portion of them set in raid1. I want that portion to be scalable too, as logical LVM volumes are. Is it possible to abstract physical volumes or to create an ...
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1answer
317 views

Fail to resize partition on Ubuntu 14 LTS / ESXi5

I want to resize the main partition of my Linux VM. I added space through ESXi interface Booted on GParted and resized the partitions However, the system does recognize the changes on disk ...
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2answers
785 views

Recommended partition scheme for a production server with two 147G hard drives?

I have a dedicated box whose specs are: CPU: 4-core Xeon 3450 *1 (HT enabled) RAM: 8GB DDR3 HDD: 15k SAS 147G *2 (currently in RAID 1) The current OS is Windows Server 2003. I am running a web ...
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1answer
100 views

LVM on disk with no partition table. How to reallocate free space with fdisk?

I shrank an LVM in half using these commands: e2fsck -f /dev/VG/LV resize2fs /dev/VG/LV 5G lvreduce -L 5G /dev/VG/LV Inspecting the physical volume yields this: --- Physical volume --- PV Name ...
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1answer
270 views

No space left on device in spite partition is not 100% [duplicate]

I am trying to do the following on my Linux machine CentOS release 5.8 cd /var/APPstoreldap/Home touch test touch: cannot touch `test': No space left on device so I verified the partition disk ...
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1answer
69 views

The partitioning of a big disk is necessary for LVM's vg space expansion

I am maintaining a LVM's vg as users' /home directory's storage space. But now I need to add a new 2T sized disk for extending the /home space. I wonder if the partitioning is necessary or not and ...
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3answers
53 views

Linux change partition

I got a "little" problem with my linux server. Distributor ID: Ubuntu Description: Ubuntu 14.04.1 LTS Release: 14.04 Codename: trusty I used the default configuration of my server ...
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0answers
97 views

Unable to create partition utilizing all sectors on an AWS EC2 instance with EBS volume

I am working on an AWS EC2 instance. I have attached an EBS volume from other instance to this machine. I want to expand root partition on the volume. I am using gdisk. Following is the output of p ...
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43 views

How to check disk usage of directories in a particular partition?

If I use "df /dev/sda1 -h", it only shows the whole usage info like used and avail. But I want to see the usage of each directory. However, if I do "du -h --max-depth=1", it shows all the directories ...
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193 views

Resize RAID 1 Partitions - Software RAID on CentOS

I have made a huge mistake with my server configuration and getting now really in trouble. I'm running a WHM/cPanel server on my CentOS, it's a production server with some websites on. My root ...
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1answer
585 views

Amazon EC2 - Not able to find / mount EBS volume partition

I have a linux instance to which a ebs volumne of 20GB has been attached. The web-console volume page shows: 20 GiB gp2 snap-b3a87xyz in-use i-cd5b9999 (myinstance):/dev/sda1 (attached) The ...
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1answer
47 views

Linux: When to create a new partition?

I am a newbie on LVM management trying to learn how to create new logical volumes. This is what I understand on how to do it: (Just want to make sure I understand it correct.) create partitions on ...
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2k views

centos 6.3 increase disk size on /

I have a VM running CentOS 6.3. LVM is not installed. From the VM side, I have increased the underlying disk from 15GB to 40GB, so I now need to expand the partition and file system. I've managed to ...
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159 views

Proliant DL380 G5, MSA60, Opensuse 13.1

I should apologize for my limited English. I bought recently an used MSA60, to replace a set of small e-SATA boxes. The disks they contain are mostly 3T bytes SATA ones. When I put the disks in the ...
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96 views

Snapshot of BTRFS Device on top of luks Volume

I have the following problem: I can't figure out, how to create a snapshot of a btrfs volume residing on a crypted disk. This is the setup: /dev/sdb is a 1TB USB 3 disk. it has a partition ...
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1answer
467 views

Partition alignment on MegaRAID RAID 1 with 4k sector (advanced format) drives

I want to setup RAID 1 (mirroring) on a LSI MegaRAID SAS 8708EM2 (1078 chipset) with 4k sector (advanced format) drives. To the best of my knowlegde the controller does not officially support 4k ...
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2answers
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Manage large disks in Windows 2012

We have a shining new server with 5 6Tb disks. We don't have physical access to it, so any "in BIOS do X" stuff is out of the question. I have been "forced" by the web interface of my to pre-format ...
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2answers
388 views

Cannot shrink partition on Windows Server 2012

I have the following issue. I am trying to take space off of VMs and add it to the OS partition. However, whenever I try any of the VMs it will not let me shrink the space so I have free to expand the ...
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1answer
157 views

Increase partition size in debian server

I have a debian server instance and I need to increase the root partition size of it. I installed the parted program and took a backup first. Then I attached another 2GB volume to the instance. When ...
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2answers
171 views

How can I check the partition name in FreeBSD?

I am currently running my server in the rescue mode, due to the firewall issues. In order to disable the firewall thing I would have to mount the / partition. My problem is that I dont know/remember ...
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1answer
190 views

Why my AWS volume size is different from the actual size?

It's very wried to see my actual disk size is much less than the actual size. From the information, looks this disk is not be partitioned. I have no idea why the actual size is 20G but disk size is ...
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Accessing multiple disks under single virtual partition?

I have disks as below on my Debian server: /dev/sda1 276M 29M 233M 11% /boot /dev/sdb1 917G 793G 79G 92% /home /dev/sdc1 1.8T 1.7T 79G 96% /home2 /dev/sdd1 1.8T 1.7T 79G 96% ...
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1answer
102 views

Installing boot manager to a raw LVM physical volume

Is it possible to install some boot manager to disk with raw physical volume inside (i.e. no partition table)? I tried LILO and LVM volumes became inaccessible (due to LVM structures corruption). Boot ...
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1answer
233 views

Can a Windows Server 2008 use a GPT-only partition table?

I have here a little bit uncommon system: its primary hard disk can't have an old, DOS (MBR) partition table, only a GPT type. It is an outer restriction, that nothing can be done about. It seems as ...
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Shrinking or removing home partition in CentOS 7 installation [closed]

I made the mistake of creating a home partition that fills up all my disk space, and it's formatted in XFS, which to my knowledge isn't shrinkable. Since I have no use for the home partition anyway ...
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1answer
72 views

How to generate random files and directories that are scattering across the whole partition? [closed]

I want to perform a heavy test of using "resize2fs" to shrink the file system. Currently, I have script that creates a few hundred thousand files taking several hundred GB. But it doesn't take very ...
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1answer
105 views

create parition for xen with lvm on raid-1

First I don't have any experience creating xen, lvm and RAID-1 server, thus after several reading I stumbled upon this ubuntu documentation to install xen. BUT, because in the documentation it ...
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Linux on VMware - why use partitioning?

When installing Linux VMs in a virtualized environment (ESXi in my case), are there any compelling reasons to partition the disks (when using ext4) rather than just adding separate disks for each ...
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3answers
467 views

Disk Partitioning on AWS EC2

I'd like to know if it's possible to create a partioned volume and if it even makes sense to do that on an Amazon EC2 server. I have a standard Ubuntu server and I'd like to separate the /home and ...
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2answers
138 views

how to backup partition layout?

How I can backup(and restore) partition layout of the Disk along with file system types,UUIDs,labels,LVM partitions(Linux LVM) etc, plus with MBRs and VBRs etc but without actual files I want to ...
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2answers
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Change partition and / or mounting CentOS 6.5

I never did it before, please keep that in mind if I ask a beginner question now, but the info I've found on the internet weren't really useful for my case. df -h Filesystem ...
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How bad is it really to install Linux on one big partition?

We will be running CentOS 7 on our new server. We have 6 x 300GB drives in raid6 internal to the server. (Storage is largely external in the form of a 40TB raid box.) The internal volume comes to ...
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installing CoreOS using usb device and CoreOS ISO

I have some doubts about installing CoreOS using the image ISO. I follow the steps in CoreOS docs, in the Install section: cfdisk -z /dev/sda touch "/usr.squashfs (deleted)" # work around a bug ...
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1answer
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Should I create ZFS zpools with whole disks or partitions?

I am making zpools on FreeBSD machine. While creating zpools i observe these two cases:- If i take raw disks and create zpool then i am able to form zpools and they are working perfectly. If i ...
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1answer
54 views

How to change /home size

This server is running CentOS 6.5 minimal and comes equiped with two 3TB HDD. df -h shows: Filesystem Size Used Avail Use% Mounted on /dev/md2 1008G 933M 956G 1% / tmpfs ...
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87 views

df on 7.7GB shows 400MB available while du -sh / reports 3.8GB used [duplicate]

I believe df is reporting incorrect disk usage, as I have the following problem: I deleted a few files to free up space, then run the following: $ df -H reports 7.7GB on Volume and 400MB ...
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1answer
281 views

Partitioning SSD and HDD in Linux NAS [closed]

There is a computer with four 2.7 TB hard disks, under control of Intel Rapid Storage Technology. And one 120GB SSD. We need to use it to store some data that we are collecting and computing. I think ...