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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698 views

iostat usage and output

When I run the iostat command like this: iostat -d I get a result something like this: Linux 2.6.18-238.el5 (mon01) 09/03/2011 Device: tps Blk_read/s Blk_wrtn/s Blk_read ...
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3answers
898 views

Safest HardDrive Format for Archiving/Media Storage Data?

What is the safest hard drive format (NTFS, HFS+, XFS, ZFS, ...) for archiving or/and storing media (data)? I'd prefer to have the data not corrupt and be relatively safe (From corruption, ...) and ...
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1answer
3k views

Black Screen When Booting From .VDI Image

I have cloned a VirtualBox machine, which runs Ubuntu 11.04 32-bit as Guest OS. I now wish to transfer it to a new host machine running Windows Vista 32-bit. I’ve transferred the .vdi file and ...
2
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1answer
209 views

GRUB won't boot, live CDs either

First, my computer crashed slowly, as if all the files were being deleted, then when I tried to reboot, GRUB just didn't show up. I also tried to boot on a live CD but it doesn't work either (yes, ...
2
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1answer
119 views

Running comprehensive speed tests on a drive

I'm wondering if anybody knows of any free packages, scripts or command line tools that can report a comprehensive speed test on a drive (e.g. generating random data, and testing how long it takes to ...
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3answers
2k views

Recommended fstab settings

I made a new partition for my home drive by following this guide I have no idea what the fstab setting it suggests mean: UUID=???????? /home ext3 nodev,nosuid 0 2 I ...
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1answer
1k views

Unable to mount a second hard drive in Ubuntu Server

I am adding a second drive to my Ubuntu Server. It was previously in a FreeNas system, but I got rid of the XFS partition and created an ext4 partition (in an older Ubuntu system). I then backed up ...
4
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2answers
815 views

Are there any issues using 2TB hard drives with 4k sectors

I'm thinking of purchasing a 2TB hard drive (probably a Seagate F4), but I've read reports of Linux not being compatible with 4k sectors on these drives. Do I have to do anything specific when I ...
11
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1answer
5k views

Using a LVM partition as a Virtualbox drive

Is it possible to use a LVM partition as a Virtualbox disk? I can't find any option to use a device as a Virtualbox disk, only disk images.
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1answer
16k views

EXT4-fs (sdc): VFS: Can't find ext4 filesystem

In short, this is where I found the best answers to my problem with my disks: https://help.ubuntu.com/community/DataRecovery During Fedora 15 installation, I added all my 3 drives to be mounted on ...
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4answers
4k views

External hard drive fails to mount

I have an external 2.5" 1TB Samsung hard drive, and it fails mount. Here's what palimpsest says about it: It's even able to do a benchmark on it: When I try to mount it normally, it fails: $ ...
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3answers
2k views

How to partition my hard-drive to be used for dual OS?

I'm using HP G42 laptop with 320GB hard-drive and 4 GB memory. I'm pretty sure that, it can be used for dual OS(Windows 7 & fedora) Currently, I'm using only Windows 7, but, I need to install ...
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3answers
107 views

Does PGPDesktop supports OpenBSD or e.g. Fedora?

Does PGPDesktop support OpenBSD or e.g. Fedora, or can I only encrypt my whole hard drive when I use Windows?
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1answer
989 views

System Backup in Fedora 14

Does anyone know how I can backup an entire system, such that if the disk drive failed, I could quickly restore the backup onto another disk? I'm running Fedora 14.
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7answers
7k views

What's the best way to format a HDD in Linux in order to leave no trace?

I'm running Debian and need a way to format the entire hdd in order to not leave any trace on it because I want to donate it to a friend. So what will be the best way in order to format it? If I ...
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1answer
3k views

How to troubleshoot udev not creating /dev/hda3 on gentoo boot?

My old gentoo laptop seem to have an issue with udev probably due to me updating software using emerge, upgrading udev+kernel, getting some messages "do these things after upgrading udev/kernel" and ...
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2answers
563 views

Getting “A hard disk may be failing” on startup

I keep getting this error message each time I start GNOME, even though I created a new partition table on this drive, I formatted all the partitions, and created them again, and this just won't go ...
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2answers
3k views

Hight iowait while the wMB/s is low

I was indexing a MySQL table. It makes a high load on that computer. It seems due to a high iowait. But it also shows that the wMB/s is only 2.87. Isn't even a common SATA HDD able to handle more ...
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10answers
42k views

How do I know if dd is still working?

I've not used dd all that much, but so far it's not failed me yet. Right now, I've had a dd going for over 12 hours - I'm writing an image back to the disk it came from - and I'm getting a little ...
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3answers
645 views

What would happen if a hard drive failed while the Linux kernel was running?

I've always been curious of what would happen if a hard drive failed while the Linux kernel was running. Since the kernel image itself is loaded completely into RAM, I don't imagine there would be any ...
7
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5answers
6k views

Backup whole hard disk Linux

I am looking for a method to backup a whole disk in case something is screwed up... I don't even know what to install on some special devices of the server, and every time it is not the same. ...
5
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1answer
382 views

Is it worth using vdmfec for backups to external SATA/IDE hard drives?

I have some SATA/IDE hard drive enclosures that I use for backups. The drives for formatted with VFAT, since I need to be able to share them with Windows and OS/X machines. The backup scripts pipe ...
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2answers
3k views

What command do I use to spin up a “power up in standby” drive?

I have 8 drives in my server connected via PATA. The drives are set for no-spin via jumpers on the drive. hdparm -I says powers-up in standby; SET FEATURES subcmd spins-up What command do I use ...
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2answers
2k views

Diskless workstations

For various reasons I need a setup with one server, and two diskless workstations. The workstations are to be "fat clients", which means I want to enable them to use their own CPU, memory, etc, for ...
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1answer
815 views

Ubuntu 10.10 installed from windows 7: how to expand drive?

I'm new to Linux. I've installed Ubuntu 10.10 from Windows 7. It's not in Virtual PC, it is independent. It uses a virtual drive in c:, I have chosen it to be 10 Gb. Now I want to increase the size ...
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1answer
591 views

Creating an extended partition

I'm trying to create an extended partition. In GParted, I shrunk the size of the existing partition and now want to create a new EXTENDED partition in the free, unallocated space. GParted only lets me ...
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2answers
1k views

How to time grep commands accurately?

I want to compare the speed of these two commands: grep pattern1 files* grep pattern2 files* Unfortunately, the first grep reads much of files* into memory buffers, so the second grep runs ...
11
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1answer
1k views

What is the difference between “extended” partition and “logical” partition

What is the difference between "extended" partitions and "logical" partitions on my hard disk? What's the need for each? I am using Linux
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3answers
399 views

What would be a good choice for an elastic file system (for adding storage at a later date)?

I'm currently running a Debian 6.0 server with EXT3, but I'd like to move over to Arch. It's being used as a file server right now with a 1TB drive in it (of which 650GB in it is used). What I'd like ...
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2answers
334 views

Why is badblocks segfaulting?

I am trying to check a mounted partition to see if the drive has errors: [root@virtuality ~]# /sbin/badblocks -v /dev/sdb1 Segmentation fault Uh oh. What does this mean? Why is badblocks ...
4
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1answer
141 views

Adding efficient storage to a laptop-based system

I've recently asked an as-yet-unanswered related question. My question here is a bit different: I want to know the best way to add storage to a laptop-based system without sacrificing power ...
11
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3answers
1k views

saving data from a failing drive

An external 3½" HDD seems to be in danger of failing — it's making ticking sounds when idle. I've acquired a replacement drive, and want to know the best strategy to get the data off of the dubious ...
6
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3answers
8k views

Prevent a USB external hard drive from sleeping

Does anyone know if there is an elegant way to tell an external usb drive not to spin down after a period of inactivity? I've seen cron based solutions that write a file every minute, but nothing ...
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6answers
25k views

How to see disk details like manufacturer in Linux

With sfdisk -s I can see the disk capacity as follows: $ sfdisk -s /dev/cciss/c0d0: 143338560 total: 143338560 blocks How do I see disk details like disk manufacturer? I tried hdparm, but got an ...
5
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1answer
409 views

Why doesn't dm-crypt handle write barriers properly?

One of the well-known properties of dm-crypt is that it does not handle write barriers properly and hence it requires turning off on-drive write cache to prevent corruption of filesystems. As far as I ...
3
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2answers
2k views

How to create a new partition on a hard disk?

How do I create a new partition on a hard disk, from the terminal? I've been reading the man pages for fdisk and mkfs, but they're confusing. I need to know how to create a new partition on a blank ...
3
votes
1answer
438 views

How to recover a missing file

I am running ubuntu and last week the system didn't let me alter files as if I had no write permissions. Then on reboot the system did a check of the system which took some time. Then everything went ...
70
votes
12answers
248k views

How do I find out what hard disks are in the system?

I need to know what hard disks are available, including ones that aren't mounted and possibly aren't formatted. I can't find them in dmesg or /var/log/messages (too much to scroll through). I'm hoping ...
7
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6answers
4k views

Sync writes very slow. Ubuntu 10.10, 32 bits, ext4

I am running ActiveMQ on my Macbook Pro that runs Ubuntu 10.10, 32 bits with an ext4 partition. Linux iker-laptop 2.6.35-23-generic-pae #40-Ubuntu SMP Wed Nov 17 22:32:51 UTC 2010 i686 GNU/Linux If ...
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1answer
462 views

How to mount external hard disk every time the server is restarted?

I have a server which the date will be backup to a external windows server hard disk which is mounted. But problem is every time the server is restarted I will need to mount the disk manually. How do ...
4
votes
2answers
3k views

Names for ATA and SATA disks in Linux

Assume that we have two disks, one master SATA and one master ATA. How will they show up in /dev?