A permanent data storage device used for storing and retrieving digital information using rapidly rotating discs (platters) coated with magnetic material in a rigid form factor (as opposed to floppy disks).

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1answer
147 views

Can not mount drive after installing windows vista

I have searched for weeks now and have not found an answer to my question. Hopefully you guys can give me a push in the right direction :) Ok, here is what happened: I have linux mint on a 1.5 TB ...
2
votes
2answers
640 views

How can I prevent smartd from reporting that it cannot find a disk?

I have smartd monitoring my hard drives. It works fine generally, but the following error window has been consistently popping up every 24 hours. This email was generated by the smartd daemon running ...
1
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0answers
484 views

New harddrive does not show up in /dev

I am trying to add a second (unformatted) IDE hard drive to a QNX 6.4.1 VM (hosted through vmware's vSphere). Unfortunately, there is no entry for the drive in /dev (I think this is called an ...
0
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2answers
3k views

increasing a logical volume

I need to increase the logical volume of the var directory, the maximum size of var right now is 10GB, I need to make it 50GB. I have a Centos 6 server. The output of df -h is: Filesystem ...
0
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1answer
2k views

External drive not being recognized

I am currently running elementary OS (a Linux OS based on Ubuntu so everything in Ubuntu works in it) - dual booting it with Windows 8. I have a 3TB external hard drive (USB 3.0) that does not seem ...
2
votes
2answers
588 views

Where to find the VBR on the /dev/sda1 partition?

I have one built-in hard disk /dev/sda which looks like this: Disk /dev/sda: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors Units = sectors of 1 * ...
0
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0answers
21 views

How to associate device to sata port disk [duplicate]

I have 2 hard disks connected to 2 sata ports. The disks are associated to /dev/sda and /dev/sdb. These hard disks are in software raid so it happens that the system can go for some time with only ...
1
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3answers
1k views

How to mount multiple partitions

Is there a way to mount multiple partitions, or even all partitions, of a disk with a single command in Linux? Is there, perhaps, an option that the mount command accepts that would facilitate this? ...
2
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1answer
930 views

GParted messed up my partitions

Update: running testdisk I can actually see all of my files in /dev/sda1! I wanted to install Windows alongside my Debian installation in order to play some games. In order to do that, I had to boot ...
2
votes
1answer
328 views

LVM keeping harddisk awake?

I have a Lenovo W530 running Arch with kernel 3.79 (for bumblebee) and laptop-mode is configured properly and running. It has one SSD (sdb) and one harddisk (sdb). The sdb disk has two lvm-volumes: ...
1
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3answers
104 views

Light linux for disk operations

I have old computer with Windows XP system and it started crashing randomly. I need light OS, which can be booted as Live CD/DVD in which I could copy all data from hdd to external hdd. I have tried ...
1
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0answers
431 views

Mint 14 does not detect my first hard disk

I have two hardisks installed in my machine : Samsung SSD PM830 SATA : 128 Gb ST9500423AS ATA : 500 Gb When I start Mint installer, it only showed me the 500Gb harddisk.So I partitioned it into ...
6
votes
3answers
6k views

Recovering an ext4 filesystem with corrupt journal

I have a hard drive that seems to have developed some kind of hardware problem in the journal. This prevents the drive from being loaded. Running mount -r -t ext4 /dev/sda5 /mnt/root results in the ...
39
votes
3answers
28k views

How to know if a disk is an SSD or an HDD

I want to know whether a disk is a solid-state drive or hard disk. lshw is not installed. I do yum install lshw and it says there is no package named lshw. I do not know which version of ...
0
votes
1answer
173 views

Encrypted USB 2.5“ to unencrypted internal 3.5” hard drive copy speed

I am moving data from an external USB 2.5" hard drive (encrypted with cryptsetup) to an unencrypted internal 1TB 3.5" hard drive on a GNU/Linux quad-core headless server with 2GB RAM, using Midnight ...
3
votes
2answers
374 views

Is it safe to only partially restore a disk image with dd?

I have saved my whole hard-disk with dd to an image file. The hard-disk contained some primary partitions formatted with ntfs, swap and ext4. I did it this way: dd if=/dev/sda | ssh user@fastmachine ...
3
votes
1answer
816 views

Measure hard-disk read(), write() speed without caching in QNX 6.5

I am working on QNX 6.5 Operating system. QNX 6.5 supports POSIX APIs. I am trying to build an application which is used to evaluate performance of hard-disks. My application will read/write/read ...
4
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2answers
931 views

What happens when a hard drive fills up?

What happens when a hard drive gets full with Linux running? Does it lock the system? Or something else, or nothing happens? I am using Ubuntu Linux.
1
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1answer
104 views

hosting my web portal on CentOS linux

I need to buy a VPS / dedicated server that provides a CentOS Linux with 4 x 500 GB harddrives in mirrored Raid. So that'd be 1TB of hard-drive space. The way I keep my pictures on my website is in a ...
4
votes
1answer
114 views

Error(?) in output of the dd command

When I run the following command: dd if=/dev/sda of=output bs=512 count=1 In the middle of the output, I see this text: GRUB ^@Geom^@Hard Disk^@Read^@ Error^M What does it mean?
4
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4answers
664 views

If I have an SSD and a hard disk in a system, can the SSD act as cache for the hard disk?

Say I have some partitions; one on a SATA drive and one on an SSD. I want to create a "virtual" hybrid disk. Is this possible?
0
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3answers
5k views

Create swap partition after install

I already have parititon contain data under lvm enviroment with centos 5.8 output of fdisk -l root@server [~]# fdisk -l Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, ...
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3answers
3k views

smartctl retest bad sectors

I got a notification today that my drive was going to fail in 24 hours. The 'Reallocated_Sector_Ct' was already around 3000 and it has since risen to over the last few hours 4004. However, I turn my ...
1
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1answer
207 views

When should I create a new volume group instead of a new logical volume?

I currently have 3x1TB physical volumes in a VG and a LV that spans the entire capacity of the VG. This LV is meant to store specific files. Now I have another 2TB drive that I want to use LVM with. ...
2
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1answer
6k views

fdisk isn't showing my hard drive as properly formatted (but it is)

I've got 3 1TB drives which I've set up to use LVM. Here's the output of pvdisplay: --- Physical volume --- PV Name /dev/sda1 VG Name vgpool PV Size ...
0
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1answer
95 views

Does RHEL 6 enforce software constraints on the number of SATA drvices that can exist on a system?

I came across the following blurb in some RHEL 6 training documentation: The number of drives that can be installed on modern computers has increased. With port multipliers, it's relatively easy ...
0
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2answers
832 views

Issue with bad sectors on a laptop hard drive

I had Windows installed on my laptop and suddenly one morning Windows couldn't start. Then I tried after formatting and for once it became possible. I also installed Ubuntu as logical drive (deleted ...
2
votes
4answers
2k views

How should I prevent data corruption on an NTFS partition shared by Windows and Linux?

I use Linux for most of the things but I still need Windows sometimes. So, I have Linux Mint 14 and Windows 8 installed (dual-booting) on my computer with the following disk setup: sda1: The 350 MB ...
1
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0answers
144 views

What changed in Linux kernel (2.6.22) that gives hdparm support for power-on in standby?

Hdparm man page lists for parameter -s: Enable/disable the power-on in standby feature, if supported by the drive. VERY DANGEROUS. Do not use unless you are abso- ...
2
votes
0answers
462 views

Local disc copy at 10MB/s! What could be the problem?

I am running a Debian 6.0.6 (before you ask). I have a regular desktop computer, nothing fancy... but when I copy a file using nautilus I am getting 10MB/s copy speed and the system is completely ...
5
votes
1answer
2k views

Unclaimed device in lshw

I have added in my computer a PCI Express controler card with 2 USB3 ports and 2 sata3 ports. (http://www.ldlc.be/fiche/PB00121886.html). The USB ports are working correctly but the HDD plugged in ...
1
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1answer
188 views

What are the possible ways a Debian Linux system may write data to HDD and how to avoid them?

The background: Here I have a spare x86 board which has a low energe costing AMD CPU built on it. I am planning to DIY a home use file server with it running a Debian base system and some common ...
4
votes
1answer
1k views

manufacturer's tool found bad blocks, but smartctl doesn't show any

Description of my problem is quite large, so first I will give a short summary, then I will precisely describe the situation. Short summary: manufacturer's diagnostic tools found and repaired some ...
9
votes
2answers
4k views

Why can an unpriviliged user execute the `sync` command?

Currently on Ubuntu Linux, but I noticed this on other OS's too. Apparently any user can execute the sync command, but why is this? I can only see the disadvantage: system slow down due to unnecessary ...
3
votes
3answers
775 views

How to make data-recovery very-very hard or impossible for Unix -computer before reselling?

I resell my Thinkpad and I want to make sure its old content in the harddrive is not readable. The Thinkpad has now Debian -installed but I sell it as-is so no OS needed. How can I can rewrite the ...
1
vote
2answers
567 views

SAS hardrive 600GB 10k is not detecting in my linux server

I have inserted one new 600 GB HDD to my Linux server. Green light is glowing but in my Oracle Enterprise Linux 5.5 OS it is not showing after executing the command below: fdisk -l grep -H . ...
2
votes
0answers
807 views

Bad superblock after server crash

My server (CentOS 6) crashed, and it now kernel panics on boot. It's currently using a mdadm RAID1 array with two 1TB drives. vg_server2422-LogVol01 is / vg_server2422-LogVol00 is Swap ...
2
votes
1answer
872 views

How to skip/exclude one SCSI bus from scanning during boot?

A "Linux debian 3.2.0-0.bpo.3-amd64 #1 SMP Thu Aug 23 07:41:30 UTC 2012 x86_64 GNU/Linux" system has at least 5 SCSI hosts: root@debian:~# ls /sys/class/scsi_host host0 host1 host2 host3 host4 ...
1
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0answers
409 views

Negative hdd usage. Available is larger than fullsize

Having issues with space accounting of lvm volume. 23G is available. But the full size of the partition is 20G. (So, it shows "-4.1G used" 0_O) > df -h Filesystem Size Used Avail Use% ...
1
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2answers
2k views

How to resize logical volume to fit filesystem

How can I resize logical volume to fit filesystem automagically?
1
vote
2answers
919 views

Writing data on particular sectors or blocks

Not sure if it's better suited for superuser of serverfault boards, let me know. I have a drive which I repartitioned with fdisk. Initially there was only one big partition, now there are a number ...
2
votes
1answer
2k views

VBoxManage: Error: Can't be used as the requested device

I used the soluton from this thread but always i get VirtualBox error: The medium 'lvol.vmdk' can't be used as the requested device type (0x80004005) I've tried all controllers SATA, SCSI, IDE and ...
0
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2answers
317 views

Any temporary fix for / being remounted as read-only?

My disk has a few bad sectors and has already failed the SMART tests. It obviously is going down. It gets remounted to read only and I have to fsck and reboot all over again. Is it safe for me to ...
3
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2answers
545 views

LVM with SSD and SATA hard disks

Is it possible to create LVM partitions for both SSD and SATA hard disks? I mean if there isn't any conflicts.
2
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1answer
1k views

How to fix hard-disk error connected by usb? [duplicate]

My system is Linux 64bit, my hard-disk is a 1TB WD HD, connected to my computer by USB3.0. I found some files cannot be copied, they are video files, and it seems I can play the video. I ran e2fsck ...
1
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1answer
281 views

Does symlinking from Drive A to Drive B affect I/O on Drive A?

I was wondering if IO through a symbolic link affects IO on the host drive even if it points to a seperate drive? My setup is, /dev/sdb2 1.8T 443G 1.3T 26% /home1 /dev/sda3 1.8T 1.7T ...
2
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1answer
2k views

I/O error but no bad block is reported in syslog

I got errors like this in my syslog, but there's no bad block or sector defined in kernel report, I can't just replace the HDD right now and I prefer to reallocate the bad blocks for now, so I need ...
2
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2answers
1k views

Install Linux on two hard drives

I am new to Linux. I have a machine with two hard drives, the first one has 80GB and the second has 120GB. I am about to format this machine and install Linux. I want to install all the main ...
6
votes
1answer
547 views

HDD allocation fstab

In my PC running Ubuntu 12.04 LTS I have installed three SATA hard drives. Two of them are installed near a cooler. I want to physically switch two drives (one that is not near the fan should be moved ...
12
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2answers
10k views

How to Throttle per process I/O to a max limit?

I'm looking for a way to limit a processes disk io to a set speed limit. Ideally the program would work similar to this: $ limitio --pid 32423 --write-limit 1M Limiting process 32423 to 1 megabyte ...