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).

learn more… | top users | synonyms (1)

1
vote
1answer
146 views

Removing failed disk from raid 1

my server (Debian Wheezy) has a failed disk. I have sda and sdb and according to the support of my hoster, sdb needs a replacement. I send them this information with the mdstat: ...
1
vote
2answers
403 views

Why might an external Hard Disk Run super slow?

I have an external Western Digital HDD (1gig) which is running very slow, 0.5 - 1mb per second. This is on a Mac Pro running the latest OS with all the patches. The HDD is connected via USB directly ...
5
votes
3answers
1k views

How can I benchmark my HDD?

I've seen commands to benchmark one's HDD such as this using dd: $ time sh -c "dd if=/dev/zero of=ddfile bs=8k count=250000 && sync" Are there better methods to do so than this?
5
votes
2answers
186 views

How do I check if a particular hard disk is dynamic?

What commands do I have to check the dynamic or basic type disk/volumes of the Windows partitions? Topic of interest because: Warning: Don't install linux on a Windows Dynamic disk! Bug Report: ...
1
vote
2answers
69 views

Debian: Create compressed Harddrive for copy

On my Debian system I have a box with certain configuration settings that I like but I've had to change them continuously. There have been times that I've gotten into a some-what irreversible ...
0
votes
1answer
84 views

where is the user content on a Mac OS X disk?

I have a friend's Mac OS X disk that comes with an HFS+ partition. I am supposed to recover the personal data from this disk (it's not yet clear if the FS is corrupted or the disk dying), but for the ...
6
votes
1answer
286 views

Why are there 2048 sectors of free space between each logical partition?

I know about the advanced format and setting 2048 free sectors at the beginning of a disk. But I just converted a partition table of my disk from MS-DOS to GPT, and I noticed this: Before: Number ...
4
votes
1answer
216 views

lshw lists my drive but it has no /dev file

Ive just got a dedicated server which has 2x 1TB HDD. However when I type df -h I get the following: [root@sd-56537 ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 916G ...
0
votes
1answer
176 views

raid1: how to synchronize harddisks (Debian 6)

My system is Linux/Debian 6, using GPT (GUID Partition Table). If I run the command cat /proc/mdstat I see the following situation: Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] ...
0
votes
2answers
132 views

Safely using a hard drive dock

I just pick up an Ez-Dock HD dock 2535. It came with sparse instructions ( and as usual Windows centric ). Software wise ie mounting, syncing,unmounting is not a problem. Hardware wise though I am ...
2
votes
1answer
304 views

Hard disk spins down and up too frequently when on battery

I'm using Debian Wheezy No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 7.3 (wheezy) Release: 7.3 Codename: wheezy $ uname -a Linux debian 3.2.0-4-amd64 ...
2
votes
1answer
250 views

What is the most accurate way to measure disk read/write speed for an OpenVZ VPS host from within the host itself?

CentOS 6.x | OpenVZ I have an openvz VPS host and would like to measure disk read/write speed. Historically, on other physical systems, I've ran hdparm to collect this information. I haven't been ...
2
votes
2answers
4k views

How to check the life left in SSD or the medium's wear level?

We all know that SSDs have a limited predetermined life span. How do I check in Linux what the current health status of an SSD is? Most Google search results would ask you to look up S.M.A.R.T. ...
2
votes
2answers
1k views

Best options for mounting Mac OS X hard drive on my Linux box?

I have a new 3 terabyte external USB hard drive (Seagate ST3000DM001 in an enclosure). I hope to use it on both my iMac (OS X 10.6.8) and my Linux machines (Kubuntu). Right now this drive will ...
0
votes
0answers
52 views

What Ubiquity files should I change or interface with to make a change to Ubiquity?

There's a difference between the GTK and Qt/KDE versions of the Ubiquity installer. The GTK version doesn't take you to a manual disk partitioner if you choose the dual boot radio button. The Qt ...
0
votes
0answers
53 views

Can I use hdparm -B254 -S240 /dev/sda?

According man hdparm, -B254 does not permit spindown. -B(1--127)permits spindown. But-B127 -S240` will makes Load_Cycle_Count increase too fast about 4/minute. How to set up hdparm parameter? I use ...
0
votes
2answers
125 views

Hard disk power management with image toggling in display

We have a system in which we almost toggle some display data in the screen 24 hours x 7 days a week. Since our application runs every day, we see some hard disk failures in the field. Unfortunately, ...
1
vote
1answer
31 views

Backup 'empty' parts of disk drive

I have a USB drive which has around 7MB of 'empty' space at its beginning. The first partition in MBR starts at 8225kB, according to Parted. How can I back up this space using something like dd? ...
2
votes
2answers
43 views

linux distro with generic hard drive naming

I manily use SUSE Linux, however it stores all device configuration and paths by ID (example: WD55844-Gh384) - which is a problem if I want to clone a disk then, replace it with a different disk. For ...
2
votes
2answers
173 views

Chromium with ~20 opened tabs freezes my laptop

As the title says, when I have about 20 opened tabs of Chromium I see the hard disk starts writing and everything start to freeze. I have to 'killall' Chromium. Previously I had installed ...
2
votes
1answer
191 views

Linux big disk partition issue

I have a big disk around 4.8 TB (RAID) and it has following partition (created by fdisk) [root@server1 ~]# fdisk -l /dev/sde WARNING: The size of this disk is 4.8 TB (4796404727808 bytes). DOS ...
1
vote
1answer
43 views

Bad blocks only with extension cord?

My external hard drive was acting strangely, so I ran badblocks, and it seemed that nearly every block was bad from the first minute I ran it. If I did badblocks -v > file, the file was over 100MB ...
0
votes
3answers
309 views

Software RAID 1 with dissimilar size and performance drives

Background I was experimenting with a home server setup in a small box I had that was supposed to be a media centre but never found much use. I installed CentOS 6.5 in a software RAID1 configuration ...
3
votes
3answers
525 views

enable SMART for HP hard disk

I would like to use SMART to perform a health check of my hard disk. I have an HP server of 4 years ago I believe. Everytime I try to use the following command smartctl -a /dev/sda I got an error ...
0
votes
0answers
32 views

lde (linux disk editor) open just few beggining blocks

I have installed lde (linux disk editor) to verify some data but I see just only up to 0xB670 block. But it's strage sometime the last block in the page is 0xB4B0 and the next is 0xB0C0. And from ...
1
vote
0answers
57 views

Sound stutters during moderate disk access?

I'm running Xubuntu 13.10 "Saucy Salamander." It's a pretty recent install. I'm playing music over a bluetooth usb dongle on a home theater system. All of my sound goes through pulseaudio. I've ...
6
votes
2answers
2k views

Does a bad sector indicate a failing disk?

My Ubuntu 13.10 system has been performing very poorly over the last day or so. Looking at the kernel logs, it appears that the <1yr old 3TB SATA disk is having issues with a particular sector: ...
1
vote
1answer
121 views

Filesystem not showing correct size in Mac OSX

I installed a new HDD and transferred my old data to it by using dd on my old HDD and then dd again to the new HDD. However, when booting from the new HDD, it does not recognize the new, larger disk ...
1
vote
2answers
207 views

Hard disk drive disappeared

Yesterday I performed a hard-reset while Linux was booting. This led to a hard issue with the HDD (UNC while recovering journal). I had to use ddrescue instead of dd because dd crashed on I/O error. ...
-2
votes
2answers
307 views

How can I fill the free space with zeroes in Ubuntu 12.04 (ext4)?

I use windows server 2008r2 with role Hyper-V. The guest system is Ubuntu 12.04 LTC. It is situated on the dynamic virtual hard disk (2TB). The size of this vhd is 360 GB. But the real size is about ...
1
vote
0answers
148 views

Make a USB drive bootable for Windows 7 setup

What is the equivalent of bootsect command available in Windows, on a *nix system? Usage: In order to make a USB drive bootable for Windows 7 setup I have to boot-up VMWare and run bootsect.exe ...
1
vote
2answers
81 views

Varing speed when reading sequentially from a HDD

I have just got a new HDD and I wanted to test the sequential read speed (the whole disk). I used: pv /dev/sda > /dev/null The disk is 500GB WD VelociRaptor (WD5000HHTZ). At the beginning the ...
2
votes
2answers
143 views

Are disks interchangeable in a mirrored RAID setup?

It is often written that disks in a mirrored RAID (like RAID 1) are an exact mirror copy one of another. So can I turn the machine off and simply swap the two harddisks cables? And if one of the two ...
1
vote
0answers
607 views

badblocks and “end_request: I/O error” in output

I have 500GB disk in my toshiba laptop, I tried to do backup of files in this HDD but it failed few times (ubuntu just closed copying operation or unmounted disk during copying files). So I boot my ...
2
votes
2answers
66 views

How to copy a very large video file with error in it?

I have a very large video file on a USB external HDD. It is about 13GB. I can play the video directly, and it seems there's no problem. But if I try to copy the file to other places, I got a strange ...
3
votes
1answer
2k views

recovery data from RAID and disk failure (Linux)

Some background A friend of mine was using in his office a NAS Buffalo-LS-WVL with two disks of 1TB each. It seems that the two disks were mounted as raid 1, but, as you will read, probably they have ...
0
votes
1answer
108 views

Renaming a Hard Drive

I have a secondary internal HDD to store auxiliary data. I want to give it a better name. How do I do it?
1
vote
1answer
119 views

How can I unlock a self encrypting disk using an sata usb adapter

Suppose I plug in a self encrypting disk (for example the samung 840 pro) via a sata usb adapter to a linux-box. Suppose I know the password. How can I access the hard-drive in this case?
10
votes
7answers
552 views

Can I label a disk device rather than a partition?

I know about the e2label and friends program for attaching a label to a disk partition e.g. e2label /dev/sda1 bla What I want to do is something different: I want to create a label for a hard ...
0
votes
1answer
379 views

How do I install Debian onto the same physical hard disk that the installer files are on?

I need to somehow copy the installer to hard drive (local disk), so that I can plug this prepared hard drive to another computer, boot the installer from hdd and install it (on same hdd). Example: ...
1
vote
0answers
271 views

How to change the hard drive serial number in Ubuntu? [closed]

Xilinx license file is produced by hard drive serial number. Now, I got it. But, it is produced by other PC which is windows 7. Hence, I need to change the hard drive serial number. As I know, I can ...
0
votes
1answer
746 views

Server down and require manual fsck. I saw this error in dmesg

I saw this in dmesg. What does it mean? EXT4-fs error (device sdb1): htree_dirblock_to_tree: bad entry in directory #763 3575: rec_len is smaller than minimal - ...
4
votes
2answers
250 views

List all the ways a block device is in use

I want to be sure that a removable hard drive (USB, but this shouldn't matter) is safe to remove. Let's say this drive is sdb. Obviously I need to make sure that there is no mounted filesystem on ...
1
vote
2answers
2k views

Disk problems prevent me from booting, or set the disk to read-only. How do I fix the disk?

Problem: Since about one week ago, my Ubuntu system encounters various severe and strange problems. Sometimes the whole system suddenly freezes. I have to push the power button to shut down the ...
1
vote
0answers
73 views

Resize /home on CentOS vmware guest

I have a new vmware guest, let's say I want to extend it from 100 GB to 300 GB My question is how to insert all the 200gb into /home? Where can I start? df -h displays:
1
vote
1answer
276 views

input/output error that come back just fine. How to make sure it doesn't happen again? [duplicate]

root@host [/backup/2013-08-15/accounts]# cd /home1 root@host [/home1]# ls /bin/ls: reading directory .: Input/output error root@host [/home1]# Suddenly /home1 doesn't work. It used to work just ...
13
votes
3answers
3k views

Differences between volume, partition and drive

What do these terms mean exactly? partition volume drive On Windows, one may say drive C: or partition C:. On Linux I'm not sure what should be used for partitions because they don't have a name.
0
votes
3answers
361 views

Align Partition Of HDD Using fdisk?

I first asked this question on SuperUser.com but got no responses. I have found how to align the partition of my SSD using fdisk (SSD article on Gentoo Wiki) but haven't been able to find any ...
2
votes
0answers
288 views

System cannot boot, continiously scanning btrfs filesystem

On the previous boot I installed HAL to make amazon prime video streaming work, which it did (mostly), but after reboot the system could not pull itself up all the way to BASH and drops to a failed ...
2
votes
2answers
2k views

How to check drive temperature on Linux?

I have used of hdparm -n and smartctl -A but it always seem to be a "per drive" technique as a drive may answer for only one of these tools. So, is there a standard way to get the drive temperature ...