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• How to increase virtual hard drive space

  - by Chris

  I have a Microsoft Virutal PC hard drive (.vhd format) that's maxed out it's 16 gig hard drive space. What would be the best way to increase this diskspace? Booting into the machine (windows xp professional) and using the disk management snap in, I can see that the virtual drive has approximately 40 more unused gigs of space. Trying to use diskpart, I find out that Windows XP can't extend the boot partition. So I'm at an empass, any suggestions on how to increase the partion or to increase the actual virtual hard drive would be great. Note: The virtual hard drive is running on Windows 7 using XP mode.

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• How to limit disk performance?

  - by DrakeES

  I am load-testing a web application and studying the impact of some config tweaks (related to disk i/o) on the overall app performance, i.e. the amount of users that can be handled simultaneously. But the problem is that I hit 100% CPU before I can see any effect of the disk-related config settings. I am therefore wondering if there is a way I could deliberately limit the disk performance so that it becomes the bottleneck and the tweaks I am trying to play with actually start impacting performance. Should I just make the hard disk busy with something else? What would serve the best for this purpose? More details (probably irrelevant, but anyway): PHP/Magento/Apache, studying the impact of apc.stat. Setting it to 0 makes APC not checking PHP scripts for modification which should increase performance where disk is the bottleneck. Using JMeter for benchmarking.

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• Old hard drive file permissions still there

  - by blsub6

  I have a new hard drive, put Windows 7 on it and want to get all the files off of my old hard drive. I put in my old hard drive as a slave drive. I can see the files but when I try to move 'em, it tells me that I'm not the owner of the file. I try to take ownership of the file and it doesn't work (it doesn't tell me that I can't take ownership of it, it goes through, just gives me the same error when I try and open the file again). I've tried modding the permissions, no dice. Anything else I can try?

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• TrueCrypt & upgrading your hard drive?

  - by Danielb

  I currently use TrueCrypt to encrypt the hard drive in a Win7 laptop (everything in a single partition). I am looking to upgrade the hard drive to a model with significantly more storage capacity. I've had a look through the documentation but I couldn't see anything about this particular scenario. I assume I need to do something like the following: Remove the encryption from the existing drive. Clone the existing drive image onto the new hard drive. Physically install the new drive into the laptop. Resize the single partition to use all the space in the new drive. Encrypt all of the new bigger drive with TrueCrypt.

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• Is my disk hot or not?

  - by adriangrigore

  I am trying to figure out the temperature of my dedicated server's harddisk. For this purpose, I've downloaded HDTune to monitor the S.M.A.R.T. Status. The problem is that the current temperature for "C2 Temperature" is 73 degrees celsius, but the little thermometer on top of the window shows 27 degrees celsius. See this screenshot: http://screencast.com/t/OGJhZGIxND Another monitoring software (Anfibia Reactor) shows similar behavior: Disk temperature is around 30 degrees, but it says that the disk is too hot. So, is my disk hot or not? Since this is a dedicated server, I can't just open the case and put a thumb on it.

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• Beginners advice on Small business network disk(s)

  - by Rob

  We are having 10 PCs used by various user and presently use one network disk (a LaCie NAS) for all our data. Everything is Windows Vista and our collective IT hardware knowledge is minimal. This worked well generally. However, recently the disk freqently loses connection from the network (2-3 times per week) and the only way back seems to be the "turn it off and back on" trick. This obviously cant be any good for the disk. I understand that there are various more sophisticated ways of storing data and was wondering what people would recommend. One of the worries is obviously disk failure (either in part or as a whole) and the lack of continued availability due to network issues. I would guess that a disk which replicates data wouldnt work as a sole solution due to the network connection, but dont know what hardware (and/or software) would/could work in our case. In terms of size, we are looking at very small amounts, ie. less than 500 GB in total.

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• Disable or sleep secondary hard drive in Macbook

  - by cpak

  I've done some quick Googling but didn't find an answer. I've put an SSD in my Macbook, and at the same time moved the original hard drive to the optical drive bay. I'm running the OS and most of my daily apps off the SDD so the hard drive is really just for storing stuff I need now and then. Now I'd like to disable (as in power off or "force sleep") the hard drive when I don't need it. Tried unmounting the disk using diskutil unmountDisk but it kept spinning for like 10 minutes. Maybe that's to be expected, but I'd imagined it would stop instantly on unmount. Also, it would be nice to have it disabled by default, and only mount it (= power on) when I need it.

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• Windows 7 Locks Up or Blue Screens after installing additional hard drive

  - by Ryan

  I've had my home theater pc for over a year now and it's been running with no problems what so ever. I got myself a new Seagate 2 TB hard drive for the holidays and ever since installing it the pc now randomly locks up or blue screens either upon putting it to sleep or waking it from sleep. The only thing I've tried so far is updating the firmware on the hard drive. The hard drive in question is this one (http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4846365). I do have my minidump file saved off on my home theater pc however right now I'm at work and don't have access to it. Please help! Thank you!

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• Can't turn computer on after re-attaching hard drive

  - by julie

  I have an Eee PC 1008HA. A few days before I got a virus that was preventing the Windows to boot but I could turn the computer on. I opened (disassembled) the Eee PC, then disconnected the hard disk. I connected the hard disk to another computer and copied my files. When I connected again the hard disk to my Eee PC and closed (assembled) it , I cannot turn the Eee PC on. Even when I connect the wire for charging, neither the charging light nor any other lights light up.

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• UPS for hard drive protection

  - by dimi

  I am in a place where electricity is not ideal (old house, no ground), sometimes it occasionally shuts down and supposedly there are some spikes. I consider using UPS with the goal to increase safety of my personal data. My first priority is the health of my internal and external USB hard drives which can be damaged due to possible power instability. I do not care that much about possible losses of not-saved work, instead I just want to let my system have a minimum time to turn off without any risk of physical damaging my hard drives. Would a cheap offline UPS suit my neads? Or do i need a better one with automatic voltage regulator (AVR)? How critical is AVR for the hard drives? The external ones require their own power supplies and will be plugged directly into UPS.

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• Dropped Dell XPS has hard-drive trouble

  - by Alex B.

  Yesterday, my mom dropped her laptop to the floor and got the blue screen of death after trying to boot the system. I was able to start a Fedora live CD and get some of her stuff off the hard drive, but I cannot seem to be able to install Windows on it. The installation starts loading files and then the computer turns off. I am thinking that she might need a new hard drive. Any ideas? Edit: I actually was able to boot the Windows XP installation but it is saying that no hard disk is detected. How can this be possible if I was able to mount the drive on fedora yesterday?

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• How to determine the best byte size for the dd command

  - by James

  I know that doing a dd if=/dev/hda of=/dev/hdb does a deep hard drive copy. I've heard that people have been able to speed up the process by increasing the number of bytes that are read and written at a time (512) with the "bs" option. People have suggested that the optimal byte size is due to sector size. I personally think it would have something to do with the amount of cache that the hard drive has. My question is: What determines the ideal byte size for copying from a hard drive? and Why does that determine the ideal byte size?

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• virtualbox 2 vmware disk

  - by anol

  I have a virtualbox disk I'd like to convert to a vmware disk. The disk is dynamic which makes it a lot more trickier. If I follow the instructions at http://xpapad.wordpress.com/2010/02/21/migrating-from-virtualbox-to-vmware-in-linux, the vdi-to-raw conversion will result in a 2 TB file. I don't even have that much disk space! The first step therefore seems to be a dynamic to static conversion of the virtualbox disk, right? How do I do that or is there perhaps a better way to convert to vmware? Help!

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• Run disk error check on NTFS file?

  - by paulius_l

  I have a feeling that my system hard drive is dying. Benchmark kind of enforces it. Here is the benchmark of my system hard drive during low system activity: And here is the benchmark of backup drive: Furthermore, there are some files which I just can't touch because I get CRC errors and the hard drive activity spikes to 100% with operating speeds less than 1 MB/s while working with such files. I haven't yet tried swapping SATA cable as I have read this might cause the problems. Anyway, I would like to run some tests on specific clustsers where those files I am interested in are stored. I don't want to do the full chkdsk because it takes a very long time. I would like to either find the utility which executes the disk check directly on the clusters where the file belongs or a couple utilities where one tells me the cluster locations and another can check just those locations. How do I check and possibly fix disk errors where the files I am interested in are stored? Edit: S.M.A.R.T. info:

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• Minimize VirtualBox Hard Drive disk

  - by Aviv

  I have Ubuntu Server 10.04 TLS installed on a Virtual Machine in a VirtualBox. The size of the Hard Drive is dynamic growing hard drive and the maximum is 32GB. At the beginning i had 4GB on the Hard Drive and the size of the .vdi was 4GB. Lately the size of data on the disk is 15GB but the size of the .vdi is almost 32GB. Why is that? How can i pack / optimize / defrag the HD so it will be the same size of the data on the disk? Thanks.

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• When is it time to buy a new hard drive, and what considerations go into buying a new hard drive?

  - by user1125620

  I've had my current hard drive for about 4-5 years now, and I've never had a problem with it before, but now it's making whirring noises. It's done this before and, last time, the noise did go away the next day, but I have accumulated quite a bit of information that I wouldn't want to lose on the drive. HD Tune Pro and Berlac Advisor both said the drive was healthy, and I wouldn't want to get a new one unless it was absolutely necessary or was going to show drastic performance improvements. My only knock against the drive would be that Visual Studio takes longer to load than I'd like it to. HD Tune Pro says the average read speed is 54.3MB/s. I'm not sure if that's good or bad, but it seems about average compared to similar drives on http://www.hdtune.com/testresults.html. Model #: WDC WD5000AAJS-22YFA0 So, should hard drives be replaced after a certain amount of time? Has mine reached that point? Would a new hard drive be any faster?

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• Repartition hard drive using Mac OS X, keep existing data

  - by Jonny

  I got a 1 TB disk a year or so ago and loaded it with some hundred of GB of data. I somehow neglected to check the file system, which turns out to be FAT-32 and thus too small for files bigger than 4 GB. So now I want to change it, without deleting the data. I thought I'd just make a new partition in the so far unused space. Then with the new partition, copy/move the data into the new partition, and then delete the old FAT-32 partition, and make the new partition bigger again... or just make a few more partitions. The critical step here is, can I make that new partition without ruining the data? The data should be fairly sequentially added to the start of the disk, but what do I know... so that's why I'm asking. Can I safely use Disk Utility for this? Any recommended file system?

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• Issues with hard disk secure erase

  - by John Watson

  I want to completely wipe all the data and both OSes (Ubuntu and Windows 7) from my hard drive. I tried DBAN but it gives me an error and does not run. I am looking for an alternative. After reading some articles online, I came to know that, using a Linux live CD, it can be done using either of following commands. a) sudo dd if=/dev/zero of=/dev/sda b) sudo shred -vfz -n 1 /dev/sda My questions are 1) Which option (a or b) is more secure (wipes everything) and faster? 2) Does either of the options damage the hard drive or anything? I want to use hard drive again i.e. installing Windows and Ubuntu again.

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• Delete files on external hard drive affect SSD?

  - by haar

  I've got a SSD as my primary hard drive. I have an external HDD hard drive which I use to store downloaded files. At the moment I have to delete 80 GB of that external hard drive. I realized that if I delete it normally, it would probably go to the recycle bin of my SSD. I am wondering how I can delete the files on my HDD without affecting the SSD or putting any files on it. Do you know how to do this? Best, haar

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• My hard disk does't get recognized

  - by SteveL

  For a few days now I have a problem with my 500GB internal hard disk. I am on Linux Mint 13 but I have the same problem with my Windows installation. When running fdisk -l I can see my hard disk (same on BIOS) but I can't mount it even via the disk utility program. In Windows XP I can see it on the My Computer menu but when I click it, it say's: D:\ is not accessible The file or directory is corrupted and unreadable Is there a way to fix it? Or at least save some of my files and format it? Should I be thinking about the worst-case scenario e.g. my HDD is dead? Edit: The filesystem is NTFS.

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• Additional Hard Drives for Servers

  - by Abs

  Hello all, I am developing a web app where I will have to save lots of files and I am just trying to work out the directory structure and where things should be saved to. I have had a look at the dedicated server I want to buy and for storage it shows this: 2x 1TB SATA in RAID1 The space is enough but I am guessing this will not be on one hard drive? I will have to save files on one hard drive and when that fills up, I have to use the other? For the Fedora distro - what is the path for the second drive? Is there a primary drive where I will be able to setup my webroot? I am sorry, this is all new to me. It would be great to links and advice on how things actually work when it comes to additional hard drives etc. Thanks all

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• What makes an Apple hard drive special?

  - by Michael Shnitzer

  The Mac Pro has a specific hard drive for sale in the Apple Store for $549.00. The drive has the following specs: Serial ATA 3GB per second 7200 RPM Amazon has a hard drive with the same specs for $169.99. The only difference I can tell is that the Apple hard drive label says it has "Apple HDD Firmware". What exactly is the benefit of this firmware and is there something I am missing that make up for the price difference in these two drives? Update: My initial comparison between the two drive was unfair. Apparently 2TB drives that are 3 GB/S and 7200 RPM are quiet a bit more than $169.99. Dell has a 2 TB SATA Caviar Black from Western Digital that is $319.99, which is closer to Apple's price.

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• Swappable hard-drives for laptop

  - by lacqui

  I am bringing my old laptop for recycling, and removed my hard drive beforehand. The drive is a 320GB SATA drive, which is the same as my current laptop's drive. I would like to be able to easily swap between the two drives, in order to dual-boot that way. My laptop (Toshiba Satellite A500) needs a tiny Philip's screwdriver to get at the hard drive bay. I would like to replace that with something that is more easily changed, while still allowing the hard drive to rest on the desk. It can stick out a bit due to the laptop's feet, but not too far.

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• Why sizes are different, and what do they mean?

  - by Ramy

  I have a 1 TB hard drive that consists of one NTFS partition which I use to back up my data (no operating system). The size of all the data in it is : 726 GB, size on disk: 728 GB, and the used space when I check the properties is: 731 GB. There's a 5 GB difference between the size and the used space. Why is that huge difference there? What's the difference between these sizes? (size, size on disk, and used space) Is there a way to calculate the difference, and be sure the HDD is not messing around? Is that normal?

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• Installed Ubuntu 11.10, getting hard disk health warnings

  - by Brad

  I'm getting hard disk health problem warnings... When I click the "examine" button the disk utility pops up. None of my drives are reporting any major issues, and the very first drive doesn't even have a SMART button. I don't really care if one of the drives is crashing, I've got everything backed up, but I just want to know how to stop these god forsaken message boxes from popping up randomly. I have already gone into the Disk Utility and checked "do not notify me if this drive is failing" on all of them except the one that doesn't have the SMART button. I've googled about as much as I can for one day.

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