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

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Discrepancy between total sectors and calculated total sectors using fdisk

I use ubuntu on vmware. With fdisk command I got this output: Disk /dev/sda: 42.9 GB, 42949672960 bytes 255 heads, 56 sectors/track, 5874 cylinders, total 83886080 sectors Units = sectors of 1 * 512 ...
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How long does it take to change partition sizes?

I lease a dedicated web server running CentOS. It has 2x120GB SSDs in a software RAID-1 array. The following partitions exist on the machine: MOUNT TOTAL USED ====================== / ...
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issue in increasing disk size in ubuntu guest vmware

Have followed link I was trying to increase the size of my disk allocated to ubuntu guest in vmware below are the things i have already done Increased max setting in vmware settings - Done ...
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2answers
32 views

Cloning LVM partitions

I need to clone a CentOS installation from a 1TB disk partitioned with LVM, to several identical machines. The disk is mostly empty since only the operating system and some software are installed and ...
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1answer
37 views

what are the folders in fstab without the device name or label or UUID

This is my /etc/fstab file on my CentOS6.6 : /dev/mapper/VolGroup-lv_root / ext4 usrjquota=quota.user,jqfmt=vfsv0,noatime,nodiratime,commit=120 1 1 ...
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I tried to resize an ext4 partition and now the VM is not working [migrated]

I tried to resize the primary ext4 partition and I think that i forgot to set the primary partition as bootable. Now the only thing I see from the VNC is the grub. I used fdisk to resize and ...
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51 views

Extending partition on centos 6

I have a VPS which appeared to lack some space somewhere. It should've been 150GB but was only 50GB. I've been trying to extend the partition but I can't seem to find out how even with the help of ...
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31 views

creating new partition for backup

I got a new server form hosting company. It has 2x2tb hard drives. I told the provider I would be using one drive for data/OS and the other for backup.Before doing offsite backup. I moved all my ...
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35 views

Is mounting /boot in /etc/fstab automatically necessary?

Hello members of StackExchange, I am running a Debian 8.0 server with Full-Disk-Encryption and while I was doing some hardening I went through the /etc/fstab and I was wondering if some partitions ...
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55 views

CentOS & moving /var to a new disk/partition

Slightly older system, roughly 2 years old. Running CentOS I'm noticing I have /var using a lot of space, and it's all good stuff...so deleting space isn't the answer. Is there any easy/safe way to ...
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43 views

Ubuntu 12.04 and Hardware RAID 5 and LVM

I have an existing database server setup with RAID5 (3pcs 1 TB disk - usable is 2TB). One of its partition is /data is LVM. There is production data already in the First RAID 5 so we opted to create ...
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1answer
41 views

Does this partition setup look OK for Centos 6.x and Plesk panel?

I have a new server with 2x3TB HDD, I want to setup software raid 1; When I use host's automatic install it makes my largest partition 2TB and the other 1TB a separate partition (not nice). So I am ...
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301 views

How can I create one large partiton over two drives in CentOS?

I've got a new dedicated server that I want to use purely for backup purposes. [root@dedi ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 20G 942M 18G 6% / tmpfs ...
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1answer
44 views

Changing the sda partition number in a clonezilla img

I want to copy a linux system from a computer to mine. That linux system is using two partitions. ("/" and an other one) I used clonezilla to copy thoses two partitions and put them in an image. But ...
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94 views

Resize RAID partition with GPT partition layout, without LVM

OK so I am a freelance sysadmin. I was asked to resize root partion (/) because it was 20Gb and /home was 3Tb. What I wasn't told is that the server is using RAID and GPT, so I can't use fdisk but ...
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31 views

Proper Partition Alignment

I'm trying to follow the advice from this TechNet article about partition alignment. Our San is an EMC, the disks are in a 4 disk raid 10. This services an I/O intensive application, 60:40 write:read. ...
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Reclaiming free space in filegroup with single chronological partition

-moved here from SO (no coments there) Question: what is a proper way of reclaiming space in big (hundreds of GBs) filegroup with single partition of table that is chronologically ordered and has no ...
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153 views

Shouldn't Google Compute Engine disk auto-resize when uploading data?

... automatic disk resizing during boot time... All Compute Engine Ubuntu images will automatically resize the root partition to use the entire disk, up to a 2 TB limit. Even if the disk is ...
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2answers
185 views

Strange “/var/lib/mysql too full!” message, with almost empty partitions

I've just encountered a strange problem on my server : it's a basic LAMP server I've just setup and when I try to restart MySQL, I get the following error. /etc/init.d/mysql: ERROR: The partition ...
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1answer
116 views

copy LVM partition to new disk

I have a question about making copy of LVM partition to new disk. I want co copy not to move data. My operating system is Debian. On LVM partition I have running Xen virtual systems. Information ...
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1answer
46 views

What differences are there between labelling options that appear under /dev/disk/by-label and /dev/disk/by-partlabel?

I want to create a disk under CoreOS that is automatically mounted at /var/lib/docker So I created a var-lib-docker.mount unit file to do it and decided to use the by-label path under /dev/disk. ...
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1answer
190 views

Ubuntu 14.04 Installation with Preseeded RAID 1 Partitioning

I have been having a painful time trying to automate an Ubuntu 14.04 Server Installation with RAID 1 partitioning. I'm testing this on top of VirtualBox with two Virtual Disk Images (dynamically ...
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How to migrate /var back into the main partition [duplicate]

I have two harddisks, mounted on / and /var I need to migrate the /var partition back into the / partition. What are the steps required to do this?
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184 views

Windows Diskpart: How to select disk based on LUN ID

I have multiple LUNs attached to my Windows 2008 server from a SAN storage controller. Each LUN has a unique ID. However, it has no correlation to the disk number in the Windows. For example in the ...
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66 views

Partitions not recognized when installing Kubuntu 14.04 over complex RAID setup

I have three identical HDDs. Using a ROM utility, I configured the use of 90% of each of them as a RAID 5 array, and the other 10% as a RAID 0 array. That is, each array uses some area on all three ...
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103 views

resizing a Debian linux partition without losing data

i have made by mistake a small partition partion on my Debian installation and after installing openvz on this bare metal server i notice that i created production vps on this partion and that it ...
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Using SSM to modify partitions

I've installed CentOS 7 on a new machine. After struggling with the partition manager for some time I relented and let it create the defaults. As a result I have a / with 50gb and /home with ~800gb. ...
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90 views

Rebuilding FakeRAID RAID 5 with new disk, no partitions show up, invalid PMBR

I have a RAID 5 array with 4 2TB disks on a HP Z800. One disk failed and was swapped out for a new one. I went into BIOS Intel Storage Matrix Utility and set the Array to rebuild with the new disk. ...
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59 views

How to extend windows server 2008 system volume?

My system partition is running out of space and need to extend it. Here is the scenario: All volumes are on one disk and there is no raid. I have C:\ system partition thats full, I have a E:\ ...
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435 views

CentOS 7: GPT and software RAID 1 without 'biosboot' partition

I have a CentOS 6 server with software RAID1 (2x3TB): - sda # parted /dev/sda unit s print Model: ATA TOSHIBA DT01ACA3 (scsi) Disk /dev/sda: 5860533168s Sector size (logical/physical): 512B/4096B ...
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LVM psychical volume partitions

I have 2 logical volumes in a volume group that span two hard drives. The problem that I'm currently having is that the I can no longer mount the volume group because the superblock is misreporting ...
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652 views

Can't open /dev/xxx exclusively. Mounted filesystem. How to create volume groups and lvm on mounted disk?

I've 3 partitions sdb1 sdb2 and sdb3. I wanna to create a volume group and lvms in the sdb3 which is the mounted linux partition where is located my root folder. I'm typing: pvcreate /dev/sdb3 ...
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86 views

How to set number of inodes during initial Centos 6 ext4 install?

There are similar questions, but nothing that was exactly on par with what I am inquiring. Completely fresh install of Centos 6, the server is setup with a BIOS RAID 1. I'm trying to set the number of ...
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115 views

Configuring Proxmox Cluster Storage

We are configuring proxmox on our servers at two locations each location has; 1 x hp c7000 enclosures with 16 blades 1 x hp proliant dl585 We also plan to add a 24TB SAN to each location. We are ...
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461 views

Installing RHEL 5.8 on > 2TB drive

I'm trying to install RHEL 5.8 x64 on Cisco UCS C240 server with 4TB OS Drive. The drive is behind LSI MegaSAS. Before installing RHEL, I booted off from an Ububtu 14.04 Live DVD. Using gparted, ...
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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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17 views

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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160 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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175 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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61 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
274 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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162 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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219 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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3k 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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185 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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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
36 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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273 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 ...