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

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What is the safe temperature limit for a consumer SATA hard drive?

Background My personal desktop system at home has 5 SATA drives racked up inside. Recently my system started failing in odd ways like random kernel panics and I eventually traced it to random ...
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How many passes do you need to wipe/shred your files to make them not undeletable?

If you have a private data on a recent, normal hard drive - how many passes do you need to delete the data to make it unrecoverable? Not in the sense, that a forensic team of 20 experts with a budget ...
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884 views

How does a hard drive retain information after being formatted?

Companies try to zero-fill their hard drives several times when they decommission them, why? Surely one pass of zero-fill would do the job exactly as they need. I understand the reasoning for the ...
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Imaging new hard drive in Windows 7 laptop?

I'm upgrading my Windows 7 laptop to a new hard drive. How can I clone or image the old hard drive over to the new hard drive, so that it looks like nothing has changed (other than the new hard ...
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2 identical PCs - can I swap a single hard drive between and expect Windows 7/XP to work?

I currently work in 2 different locations, traveling between the 2 every few weeks or so. I currently have screens, kb, mouse etc... in both locations, so I just pick up my tower case when I want to ...
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8answers
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Disk operations freeze Debian

I have just installed Debian testing on my new desktop and I am not very happy with performance - when I perform a disk intensive operation, e.g. upgrade packages in the system, everything seems to ...
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5answers
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Clone a Windows Installation to a 3TB Hard Drive; MBR to GPT

I have Windows 7 Professional 64-bit installed on my desktop. Unfortunately for me and my wallet my hard drive is failing. I have purchased a 3TB hard drive as a replacement for my current 2TB ...
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2answers
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Trying to remove/diagnose single Current_Pending_Sector in S.M.A.R.T. data

I'm in a process of doing a fresh Linux install and before I went to do that I thought that it is a good time to verify HDD health since I can safely overwrite any data on the HDD if needed. First ...
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383 views

Why does sector-number addressing in CHS start at sector 1 and not 0?

Before LBA was introduced, why does CHS start at 0,0,1 and not 0,0,0 ?
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btrfs: HUGE metadata allocated

I have a 256GB SSD disk on which I converted my ext4 root FS to btrfs. I erased the ext4 backup subvolume, enabled compression and defragmented recursively to enable it on all files. btrfs fi df / ...
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685 views

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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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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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 ...
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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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2answers
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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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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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diagnosing 100 percent disk usage in windows 10

Since updating to win 10, I'm experiencing issues with my disk usage. From time to time (sometimes every 10 minutes, sometimes once every few hours) my system becomes unresponsive because the disk ...
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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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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
911 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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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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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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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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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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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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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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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. ...
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3answers
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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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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 ...
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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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1answer
528 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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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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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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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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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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How can I shrink my 12GB pagefile.sys?

Even though I only have 4GB of RAM, I have a 12GB pagefile.sys. From what I've read about the topic, this is bigger than the x1.5 rule-of-thumb and it's also taking a huge chunk of space on my hard ...
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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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What do different values of hard drive's Advanced Power Management feature (hdparm -B) affect, except spin-down?

hdparm's -B parameter is documented as: Get/set Advanced Power Management feature, if the drive supports it. A low value means aggressive power management and a high value means better per‐ ...
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6answers
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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
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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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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 ...
9
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8answers
16k views

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 ...
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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 ...
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7answers
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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
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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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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 ...
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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: ...