A hard disk drive (or HDD) is a non-volatile, random access device for storing digital data.

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Do hard drives lie?

In the days of old, I remember getting drive errors, but it seems that modern drives never report errors, but instead make a best effort to return you something. I recently had a hard drive fail, ...
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1answer
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What's the difference between SATA and SATA-II (3.0 GB)?

What's the difference between SATA and SATA-II (3.0 GB)? Specifically, if I'm shopping for a new (budget, so not new-new) motherboard, do I need to take into consideration if it supports SATA-II? ...
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2answers
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Can a failed Btrfs drive in RAID-1 be replaced live?

I am trying to decide on a filesystem and would like to know if it is possible to replace a failed drive in btrfs RAID without downtime. Suppose I create a new btrfs filesystem using the command ...
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3answers
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How can I find out what is using the hard disk? [duplicate]

Possible Duplicates: hard drive activity by program? What is causing hard drive grinding? Once or twice a day my computer starts writing significantly hard to the hard drive, the HD led ...
11
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2answers
900 views

Do S.M.A.R.T. requests wear off the harddrive?

In a german ubuntu guide for the hddtemp program is claimed that every S.M.A.R.T. request wakes up the drive although no data is read. Because some harddrives that can park their head into a parking ...
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3answers
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Using `badblocks` on modern disks.

I want to use badblocks to check my HDDs and would appreciate clarification of its operation. Can someone please explain the best options to use with -b and -c? I have included their definitions ...
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6answers
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How do I prevent disk renumbering on reboot in OS X?

I have 3 physical drives in my Mac Pro with Mac OS X 10.6.4. Occasionally after rebooting the machine, the disk numbering changes such that the /dev/disk# does not reference the same drive as it did ...
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1answer
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Do hard disk drives turn on 512e (512byte emulation of 4k sectors) as-needed depending on host controller?

I have a 4 TB hard disk that has 4k physical sector size (Advanced Format) and I attached it to two SATA host controllers (one internal and one in a USB enclosure). On the (older, about 2010) it comes ...
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2answers
376 views

Why 45MB Unallocated space at the beginning of a Silicon Power Marvel M70 64GB Flash Drive AND Why Drastically different sector counts?

I have a brand new Silicon Power Marvel M70 64GB USB flash drive has 45MB of unallocated space preceding the 58.89GB of available space. I don’t care about having less than 64GB since I know it’s due ...
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4answers
898 views

Can I increase the reliability of my hard drive by using less of its' capacity?

I have a used 3TB SATA hard drive kicking around that I am planning to use as a replacement in a Win 7 box. I don't need all this capacity so was I thinking if I format it to 1TB I would increase ...
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4answers
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What's the jumper “enable 1.5GB PHY” on a Western Digital hard disk?

I've got a new hard disk. On the label there is a description of the jumper settings: One of them is: Jumpered pins 5 and 6 enables 1.5GB PHY What does PHY stand for?
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2answers
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What is faster cutting or copying a file?

To get large file from one place to another what is faster cutting or copying a file ? What factors can influence the result? I've heard it matters if they are on the same drive and the speed of the ...
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7answers
7k views

How often should I run CHKDSK? [closed]

For as long as I remember, I've been running CHKDSK once a month. However, with the advent of the "modern" operating system (i.e., Windows 7), I wonder if that's still necessary. Could I do it once a ...
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7answers
14k views

Cloning single disk drive to multiple drives simultaneously

I am looking for a way to clone single disk drive to more than one disk drive at the same time. I have prepared system images on 1TB disks, and it takes almost 2 hours to clone one disk to another, ...
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4answers
32k views

BIOS Hard Drive Password Security?

I have a Dell Latitude E6400 and I would like to know how secure setting a BIOS HDD Password is? Does this apply some form of encryption to the contents of the drive or is it just some simple lock on ...
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7answers
2k views

USB vs. FireWire for external hard drives

For external hard drives in this question, I'm referring to traditional HDDs; the kind with spinning metal inside of them (no RAM or flash-based super-high-performance hardware): Is there a ...
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4answers
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How is the extra mSATA SSD disk used/configured in a Dell XPS laptop?

Some machines in the new XPS laptop range from Dell come with a regular, large (500GB+) HDD and an additional 32GB m-SATA SSD. The only detail I can find about this extra drive on the Dell site is ...
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3answers
6k views

What happens when windows runs out of drive letters? [duplicate]

Possible Duplicate: What if the hard disk is partitioned into more than 26 sections in Windows? What happens when windows runs out of drive letters? I searched Google and got no definite ...
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2answers
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What is TRIM exactly?

From the Wikipedia page of TRIM I get the impression that TRIM was introduced to lower the writes to a SSD, but letter the file system taking case of which blocks are unused. If that is correct, does ...
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2answers
4k views

How to make smartd shut up about one particular offline uncorrectable sector?

I have a disk in a two-disk software RAID-1 for which recently an "offline uncorrectable sector" appeared in the SMART status. 198 Offline_Uncorrectable 0x0030 200 200 000 Old_age ...
10
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1answer
525 views

Where is the software RAID information actually written?

Like title says, where is the actual information which specifies which disks are being used, what order, etc...? I noticed while installing a linux distro that it was detecting a RAID array without a ...
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5answers
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Can storing my HDDs airtight damage them in anyway?

I have lost many electronics that I keep unused for a long time before due to the near sea (high humidity area) area that I live in. I learned this the hard way, so in order to protect hard drives ...
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5answers
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Does the order of partitions matter?

I see that most people tend to make /boot, swap, Windows System partition, etc first. And some say that it'll be faster to do so, while others say 'outer tracks' faster. Could you tell me which one ...
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7answers
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Hard drive disappears when the computer resumes from sleep

I have a Windows 7 x64 machine, which has 4 drives in it. One of the drives disappears when the computer resumes from sleep. It is consistently the same drive. It disappears from my computer, and ...
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5answers
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Can a mirrored (RAID-1) disk be plugged into another system to be read?

If I have disks in a RAID-1 array, can I take one of them out and plug it into a different system to be read? This means, on the target system, treating the disk from the RAID array just like an ...
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1answer
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Write Activity to .vmem file even though the VM is suspended

I have a VMWare VM I have to use for certain tasks at work. For some reason while the VM is running or suspended something is doing massive (in terms of operations, not Bytes/s) I/O on its .vmem file, ...
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2answers
5k views

Windows page file on multiple hard drives

I cant find any documentation or articles online online for this... how does Windows handle page files on multiple hard drives? Does windows treat them as a concatenation, writing to one till its ...
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6answers
6k views

2.2 TB limit applies even to eSATA drives? 3TB appears as 746 GB

I have an Icy Dock 3.5" external enclosure with USB 2.0 and eSATA. I have an Intel DG45ID motherboard with USB 2.0 and eSATA ports. In the past I had a 2 TB Seagate drive in the enclosure, and it ...
10
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1answer
14k views

Can I connect a SATA-II hard drive to a SATA-I connection?

I have an older computer with a SATA-I connection. My hard drive crashed and I need to buy a new hard drive. Will I run into problems if I connect a SATA-II drive to my computer?
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2answers
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Filesystem compatible with GNU/Linux and Mac

Which filesystem is compatible with GNU/Linux and Mac OS? I want to be able to read/write from both GNU/Linux and Mac OS. For example I want to copy a file to my external hard-drive from GNU/Linux and ...
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8answers
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run a computer without RAM? [duplicate]

I was reading about CPU fetch time, where I found that CPU take very less time to access data from RAM as compared to accessing hard disk, and that RAM is present for storing the information and data ...
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9answers
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My C drive is 20GB large and almost full, how do I regain space?

I have Windows 7 Ultimate installed on my PC. The C drive has a capacity of 20 GB and I have only a few applications installed. Still, the drive shows as being almost full up to its capacity and keeps ...
9
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7answers
7k views

What is the fastest way to securely overwrite an old hard drive? [duplicate]

Possible Duplicate: Securely erasing all data from a hard drive I'm going to give my HDD away, so I'm writing it full of crap so there is no possibility to recover any of my files I had ...
9
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7answers
3k views

How can I recover a crashed hard drive?

My hard drive from my MacBook crashed and died hard last week. I replaced the drive with a new one, and installed 10.6/Snow Leopard on it. The old drive is now in a usb enclosure, and I really need to ...
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4answers
1k views

Is BIOS considered an OS? [closed]

This question comes to mind when dealing with RAID arrays, but is not necessarily applicable to the subject. How is that the BIOS is able read from a hard drive to effectively load the OS, when ...
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3answers
2k views

Bad Sectors on Hard Drive

I run check disk pretty regularly on my hard drive, and lately it's been saying that I have some bad sectores (66, to be exact). I've run smartctl and HD Tune. Both tell me that I have bad sectors and ...
9
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2answers
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Are there any performance benefits to fully formatting a hard drive (vs. a quick format)?

so I have a 1TB HDD, and here's my question: Is it worth doing a hard format? Does it have any performance variance from say, quick formatting? I understand the technical difference between the two: ...
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4answers
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Mean Time to Failure (MTTF): When disk manufacturers post this, how should you interpret their numbers?

Mean Time to Failure (MTTF) is usually given in terms of hours, and by doing some calculations, it seems that a disk should fail only after a good number of years have gone by. It seems that disks ...
9
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2answers
1k views

What is a bare or OEM hard drive?

I am looking for a new internal hard drive for laptop and found the terms like Bare drive and OEM drive. I searched the net and found that bare drives don’t come with cables and manuals. But I am ...
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2answers
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Why is Windows constantly spinning up my secondary HDD?

I'm having a problem with windows constantly spinning up my secondary HDD. My main OS is on the C: partition of my SSD and on my HDD I have a D: partition for storage and an E: partition for recovery. ...
9
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4answers
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ZFS Beginner Setup with Different Size Drives

Sorry for the noobie questions, I've been Googling all sorts of walkthroughs to create my ZFS raid, but I can't seem to find the correct links for the answers I'm looking for. This is my first ...
9
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2answers
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How can I make two hard drives act as one in Windows 7?

Is there any way to configure Windows 7 to make two hard drives act as one (without using RAID), so hard drive 1 and hard drive 2 would share a single drive letter? Can this be achieved natively in ...
9
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3answers
15k views

Best media for long-term backup without access : USB key vs DVD vs SD card vs HDD vs SSD vs …? [closed]

Consider that one want to keep a backup of some data by placing a media in a secret place (under earth, in a rock, in a wall...). What would be the best media with the best long term data stability ...
9
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1answer
3k views

Western Digital Green drive from 512 byte sectors (jumpered) to 4k byte sectors (removal of jumper)

I was using a WD20EARS drive with pins 7 and 8 jumpered in order to use it on an OS that doesn't support 4k sectors. But now, I want to transfer that hard drive over to an OS that has 4k sector ...
9
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3answers
34k views

How to password protect an external hard drive without encrypting it?

I carry my external hard drive around with me sometimes, and was wondering if there was a way to password protect the entire drive, with no hassles or anything, just a simple password protection...if ...
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4answers
2k views

What is causing hard drive grinding?

My windows (XP) hard drive grinds a lot and it negatively affects the performance of other applications. I have plenty of RAM and have already verified that this hard drive activity is not page file ...
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4answers
7k views

Why some recovery tools are still able to find deleted files after I purge Recycle Bin, defrag the disk and zero-fill free space?

As far as I understand, when I delete (without using Recycle Bin) a file, its record is removed from the file system table of contents (FAT/MFT/etc...) but the values of the disk sectors which were ...
9
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3answers
2k views

Is it a good idea to have the operating system on a solid state drive?

There is something I don't quite understand. I know a SSD helps with OS load times, but I'm not sure if all this boost is only noticeable/interesting when booting, or gives an all around considerably ...
9
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6answers
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Can't create partition or locate existing one when installing windows 8.1

I'm trying to install windows 8.1 and I'm getting this error message after I choose the hard drive to install the windows in we couldn't create a new partition or locate an existing one just to be ...
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2answers
2k views

Does multi-platter hard-drive use all of their heads to read simultaneously?

Suppose we have a harddisk with 2 platters with characteristics below: Rotational rate: 10, 000 RPM Avg sectors/track: 1000 Surfaces: 4 Sector size: 512 bytes I was reading "Computer ...