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• CPU and HD degradation on sourced based Linux distribution

  - by danilo2

  I was wondering for a long time if source based Linux distributions, like Gentoo or Funtoo are "destroying" your system faster than binary ones (like Fedora or Debian). I'm talking about CPU and hard drive degradation. Of course, when you're updating your system, it has to compile everything from source, so it takes longer and your CPU is used at hard conditions (it is warmer and more loaded). Such systems compile hundreds of packages weekly, so does it really matter? Does such a system degrade faster than binary based ones?

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

  - by Ivan

  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 occupied by the file remain intact until these sectors are reused to write something else. When I use some sort of erased files recovery tool, it reads those sectors directly and tries to build up the original file. In this case, what I can't understand is why recovery tools are still able to find deleted files (with reduced chance of rebuilding them though) after I defragment the drive and overwrite all the free space with zeros. Can you explain this? I thought zero-overwritten deleted files can be only found by means of some special forensic lab magnetic scan hardware and those complex wiping algorithms (overwriting free space multiple times with random and non-random patterns) only make sense to prevent such a physical scan to succeed, but practically it seems that plain zero-fill is not enough to wipe all the tracks of deleted files. How can this be?

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• Need hard disk recommendation for linux home server.

  - by neotracker

  Hello, I'm planing to build a little linux homeserver. It will mainly be used for storage and maybe as an media pc. I plan to build a software raid5 with 4 1.5TB or 2TB hard drives. I already decided to use the Western Digital Caviar Green 1.5 TB drive, but then I read about some problems with the WD green series about many drives failing and that they are not recommended for raid anyway. Of course, I couldn't find much facts on the issues so I thought I just ask here ;-) What hard drives would you recommended for a software raid5 setup? As I only need it for storage, the whole thing doesn't have to be too fast. So I prefer a cheap price and silence to great performance.

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• 4K sectors transition: Why are hard drives moving to 4096 byte sectors, vs. 512 byte sectors?

  - by Chris W. Rea

  I've noticed that some Western Digital hard drives are now sporting 4K sectors, that is, the sectors are larger: 4096 bytes vs. the long-standing standard of 512 bytes. So: What's the big deal with 4K sectors? Is it marketing hype, or a real advantage? Why should somebody building a new PC care, or not, about 4K sectors? Why is this transition taking place now? Why didn't it happen sooner? Are there things to look out for when buying a 4K sector hard drive? e.g. incompatibility? Anything else we should know about 4K sectors?

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• How do I recover a RAID 1 volume on Mac OS X (10.7)?

  - by Avry

  I have a Synology NAS that I've set up with RAID 1. The device is set up with two drives, both the same size (i.e. 500 GB each), formatted in ext3, as a RAID 1 volume (i.e. even though the total capacity is 1TB, I effectively only get 500 GB). In the case of a device failure where I can only access one of the drives, how can I recover my data? The solution I'm looking for is something like: 'Put the working drive in an enclosure, and use <some software> to recover your data.'

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• Using a CF card as an IDE HDD

  - by dartacus

  I have an old Sony laptop (Vaio TR1-MP) that I like. The HDD has died and since it's a hard-to-find 1.8" IDE hard drive I'm considering buying one of those little CF card adaptors and a 16gb CF card. The total cost of that is about £30 and replacement HDDs for this model are far pricier. Has anyone replaced their HDD with a CF card in this way, and, crucially, is the performance utterly horrible afterwards? ;-) I've seen a couple of threads which hint it's possible but the advice eventually given was just to buy a SSD, but I'm not even sure if its possible to get a 1.8" SSD with an IDE connector that'll fit my laptop. (I freely admit that the most sensible thing to do would be to bin it and just buy a cheap netbook which would be smaller, faster and lighter than the sony, but it does have a very nice widescreen display and dammit I just like it !) Thanks, G

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• Computer temporarily freezes and then resumes

  - by trizicus

  This happens on ALL operating systems (7, Ubuntu, etc.). What happens is everything for 1-3 seconds becomes unresponsive, I then hear what sounds like my other internal hard drive 'spinning up', and then viola everything is responsive again. Note: Already ran SMART tests, no issues at all. I think issue is that the HDD spins down and when need it gets 'turned-on' (OS settings turn off HDD's after 20 mins of inactivity) and because my pagefile is on the other HDD it causes OS to temporarily freeze. Need more tips, and insight. Thanks More info: Running Quad CPU, 4GB RAM, Intel SSD, GT 240.

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• HDD not detected whenever first power on (detected at BIOS level)

  - by Alvin Lim

  I am using Asus P8H61-M LX Motherboard with latest version of BIOS: 4401 One SATA-3 Western Digital Black Series 1.5TB is attached to SATA port 0 A Samsung 22x DVDRW SATA drive attached to SATA Port 1. ps/2 Logitech mouse and keyboard. CPU is i3 with DDR3 8Gb RAM. no other devices are installed. My problem is that when I turn on the computer, the WD HDD is not detected. ie cannot be booted. I have to press ctrl+alt+del in order to get it detected. I'd used the WD data lifeguard software to scan the HDD, the smart status is OK, the surface scan does not show any error at all. Where did I do wrong? Any advice is greatly appreciated.

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• Compute number of occurrences in a column of a spreadsheet

  - by wnstnsmth

  I have a Google Drive spreadsheet with a single column that holds string values (Twitter screen names) such as "user1", "user1", "UserX", and I would like to count those values so that I can easily craft a bar chart out of it. So the result should be value occurrence ----------------------- user1 2 UserX 1 ... .... Please note, I only want to look for whole words, and not part words. EG, the words 'on' and 'one' appears in the word 'money' - I would not count this (eg, only the word money is counted). Hope that is clear enough. What formula should I use?

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• Motherboard: Intel S5520HCR s1366 SSI EEB

  - by Crazy_Bash

  I'm building a storage server for online video streaming. I thought about adding two SSD drive for a OS. other 15*(12 SATA & 3 SSD) drives i want to build with aufs XFS and ethernet 4GB/sec network. But I'm confused a little. S5520HCR board supports 6, SATA/300, RAID: 0, 1, 10, Intel ICH10R. Does it mean i can use SATAIII HDD? I'm planing on buying SEAGATE SV35 Series (3.5, 3??, 64??, SATA III-600). also my Chassis supports up-to 16 sata and the motherboard only 6 what kind of sata controller should i use? What's better in terms of performance 1366 or 2011 socket? My server so far: AIC RSC-3EG-80R-SA1S-2 3U Motherboard: Intel S5520HCR s1366 SSI EEB Kingston DDR3 8192Mb PC3-10600 1333MHz (KVR1333D3N9/8G) Seagate 3000GB 64MB 3.5" 7200rpm SATAIII (ST3000DM001) Kingston 480GB SSD 2.5" SATAIII Intel E1G44HTBLK Intel Xeon E5606 2133MHz/L3-8192Kb/QPI s1366 tray SERVER ACC CARD SAS PCIE 16P HBA 9201-16I LSI00244 SGL LSI

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• How to move an existing Win7 setup to a RAID-1 array?

  - by Matthew Scharley

  Currently I have a the following setup: Drive A/B: Identical HDD's Drive C: 2TB external drive with plenty of space currently. Hardware RAID controller Currently I have Drive A which is my boot drive (Win7), and Drive C which is a data drive, and Drive B which I only recently received and is blank. What is the best way of moving off of Drive A, setting up the hardware RAID and then migrating my data back onto the RAID array? I'm proficient with Linux, but I'm not sure if I can get away with simply using dd here. There is currently enough free space on Drive C to take 5-6 copies of a disk image of Drive A, so space isn't an issue.

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• Can a RAID 0 disk be rebuilt

  - by Rogue

  Recently one of the hard drives of one of my RAID 0 configuration gave an error. What do I do now I'm hoping that I can replace that faulty disk with a new hard drive and that the RAID can rebuild itself. (using Intel Matrix Storage Console) Is this possible? Though I doubt it. Is there anyway that I can rebuild the RAID? or have I lost all the matter on it. TECH INFO: I have a software raid on an Intel DG965WH motherboard and the current operating system is Windows

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• Can a RAID 0 disk/config be rebuilt ?

  - by Rogue

  Recently one of the hard drives of one of my RAID 0 configuration gave an error. What do I do now I'm hoping that I can replace that faulty disk with a new hard drive and that the RAID can rebuild itself. (using Intel Matrix Storage Console) Is this possible? Though I doubt it. Is there anyway that I can rebuild the RAID? or have I lost all the matter on it. TECH INFO: I have a software raid on an Intel DG965WH motherboard and the current operating system is Windows

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• Mount linux partition as Windows network share over internet

  - by CptEO

  I have a Linux server running RHEL 6. I have two Windows servers. All servers are connected directly to the web with an external IP, they are not in a local lan. What I would like to achieve is to setup the Linux server so that it offers a single share (the whole partition) that can be mounted as network drive within Windows. I don't want to use any 3rd party software to access the linux server because I want to use the linux server as a backup for Bare Metal Restore. In order to do so, I need to be able to access the linux partition from within the Windows Recovery Enviroment where I cannot install any 3rd party software. The linux server should only be accessible from given IP addresses (e.g. the 2 windows servers). Does anyone know if the setup I would like to have is possible?

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• Easiest way to move my Windows installation to an SSD?

  - by Jon Artus

  I've taken the plunge and bought an SSD and want to move my existing Windows installation over. The current hard disk is 500Gb, but I've trimmed the contents down to about ~40Gb. I'm transferring it across to a 100Gb SSD and looking for the easiest way just to copy everything across and set the SSD up as a boot device. I've looked at a few tools like Macrium Reflect, but they don't seem able to restore to a smaller drive. Do I need to go for something like PING to do this? I'm trying to avoid scary Linux-based boot utilities if possible, does anyone know of an easier way?

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• Bluetooth headset turns off when Skype call ends

  - by Claude

  For about 6 months, I haven't been able to use Skype because when I end a Skype call, my Plantronics Callisto headset gets turned off. I'm paralyzed so I can't turn it on manually. I have a Sony VAIO computer running Windows 7. I have updated my Bluetooth dongle software, uninstalled and reinstalled Skype and uninstalled Skype and gone back to an earlier version; all to no avail. Neither Plantronics nor Skype technical support are interested in looking into this problem for me.

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• Where does truecrypt store the backup volume header?

  - by happygolucky

  When using WDE, where does (if anywhere) truecrypt store a backup volume header? As i know there is always a backup header for regular truecrypt volumes, however i am not sure if this applies when system encryption is used. Because if i damage the volume header in track 0, my password won't boot my system anymore. So there is no backup header on the drive? I read somewhere on a forum that truecrypt might have a backup header relative to some position from the END of the HDD, however this doesn't make sense as it could easily be wiped over by programs running in Windows. And how would truecrypt know where this backup is anyway?

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• Windows has automatically mapped my network drives to my local disk - how do I stop it doing so?

  - by cyborg

  Windows XP decided when I logged on that because the network was unavailable at the time that two of my network drives should be mapped to my local drive so that data would be saved. All well and good but I need it to stop now so I can use my network drives again. I can't find anything relating to the feature but I can't remember the specifics of the message it gave me when it started this operating mode and Google searches for the sort of terms above leads me to a slew of irrelevancies. Any ideas? Thanks.

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• Do hard drives have to be mounted somewhere?

  - by TheLQ

  I'm creating a cheap JBOD box with ~7 IDE hard drives. However when you take into account 3 existing drives + 2 CD drives that are installed as well, I am out of mounting places inside the server. Will I adversely affect or harm the drives if I just stack them on top of each other in the box? Before you ask if they are going to fall over, this box won't be moved and won't really be touched while its in use. Heat (should) be taken care of by the fans. However I am worried about the vibrations that each drive will put out. Is this an actual issue?

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• How badly do SSDs degrade without TRIM?

  - by joev

  SSDs have been out for a few years, and have seen all kinds of usage patterns. Windows and Linux support the TRIM command, with Mac OS still trailing behind here. Update (2 Aug 2011): It appears OSX Lion has support for TRIM in Apple-branded SSDs. There is a utility that enables TRIM in non-Apple SSDs I'm sure plenty of Mac users (and pre-TRIM version of Win/Linux) have SSDs. So, to you folks: have you noticed a degradation of SSD performance during its lifetime? How long have you been using the SSD, and how bad is the degradation? I'm assuming that even at its most degraded state, a modern SSD would still smoke a traditional hard drive in terms of performance.

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• DVD (vob file) to online video viewer?

  - by Nick

  I've been sent a DVD which needs to be put onto a website, but I honestly don't even know where to start. Do I simply convert the file using some software to MP4(?!) and then use something like http://videojs.com/ to view it online? I'm really sorry for the vague question, but I want to produce the best quality results, with good compression, good quality and a nice video player interface. Would really appreciate any recommendations. Thank you!

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• Occasional HDD Related Hangs

  - by diolemo

  I have an issue that seems to be disk related. Occasionally my system will block for 30 or so seconds and is mostly unresponsive. Those things already in memory requiring no disk access continue to function but those things requiring disk access (even small) hang. 30 seconds later everything is back to normal. I have 2 Samsung drives in RAID 0. I have 1 WD drive (has pagefile) I have an SSD used for caching (Intel Smart Response). This is a new install of Windows and the drives were fine in my old PC (~1 month ago). Has anyone experienced anything similar? Any suggestions to solve this one? Thanks in advance.

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• NVidia raid 5 array spooling sounds and delay

  - by Chase B. Gale

  I've had a raid 5 array setup with 3 2TB WD Green drives for about 3 years now. Starting last week, when I would access the array for the first time, I hear a loud drive spooling sound and experience a ~5 second delay before being able to access\save files. This behavior happens when I don't use the array for some time (about an hour) and after occurring it doesn't happen again if I continue to access the array. I've run SMART scans on all drives and they come back as being a-ok. What's causing this? Is my array getting close to death?

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• SWF -> Compatible YouTube format and retain ActionScript

  - by random

  I have an swf (just a sequence of slides with audio, timing controlled by actionscript) that I want to convert to a compatible YouTube format (flv, mp4, etc.). I've tried using the Moyea SWF4Tube software but when it was converted all of the timing was gone. I'm fine with uploading as a swf, but the problem was (when I tried) that the codecs weren't appropriate. Any help regarding this is much appreciated, thanks.

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• several hard drives and partitions

  - by Tim

  If there are two physically separate hard drives, should they be treated as two pre-defined partitions? If yes: should they be treated as two primary partitions (including one or two of them can become extended partition(s) and be further subdivided into logical partitions)? Or they (or one part of each) can be treated as two logical partitions of a extended partition? Thanks! I intended to ask if there can be a primary/logical partition that are partially on both hard drives? And if there can be a logical partition on a hard drive and another logical partition on another hard, and the two logical partitions belong to the same extended partition? I guess the answers to both questions are no?

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