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• Downloading error "Could not retrieve the required disk image "

  - by Freed Ahmad

  When I try to download Ubuntu 12.04 using the Windows installer (Wubi) through a proxy server which requires proxy authentication, after I choose the Ubuntu installation size, username and password, when I click the Install button, I get this error: An error occurred: Could not retrieve the required disk image files For more information, please see the log file: c:\users\(myusername)\appdata\local\temp\wubi-12.04-rev266.log The log file says: proxy authentication error How can I solve this problem?

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• Running virtual machines: Linux vs Windows 7

  - by vikp

  Hi, I have tried running windows xp development virtual machine under windows 7 and the performance was dreadful. I'm considering installing Linux and running the virtual machine from the Linux, but I'm not sure whether I can expect any performance gains? It's a 2.4ghz core 2 duo machine with 4gb ram and 5400 rpm hdd. Can somebody please recommend very cut down version of linux that can run VMWare player and isn't resource hungry? Thank you

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• Virtual Economy Setup - Virtual currencies advice

  - by Sarah Simpson

  I'm trying to figure out how to build my virtual economy. It seems like some games have one currency and some of them have up to 3 and 4 different ones. The game is an action game which is currently single player but I'm planning on adding a tournament mode that allows users to compete against each other. The virtual goods that a user would be able to purchase would be either customization to the character or powerups and utilities that give the character more abilities in the game. The character is able to gain coins during game play. The advice I'm trying to get is whether or not it makes sense to set up more than one currency and more than two currencies? What are the pros and cons? Reference to some resources that indicate research would be great.

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• How to use qcow2 disk image in Linux?

  - by sauparna

  I have a large qcow2 formatted disk image, which I use as storage. Often I need to move data to and from this disk image. I mount the disk using the qemu-nbd tool as follows: modprobe nbd max_part=63 qemu-nbd -c /dev/nbd0 /host/disk100G.img mount /dev/nbd0p1 /home/rup/disk But disk access fails every now and then in the midst of some I/O operation with an "Input/output error". At that point I have to manually unmount the disk and re-mount it so that I can run the program again: qemu-nbd -d /dev/nbd0 umount joborkhaki/ What could be the reason for this? Is there a better tool that I can use to maintain a qcow2 disk image?

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• Can I have both Windows dynamic disk partition and some other non-Windows partition on the same disk?

  - by haimg

  When a basic Windows disk is converted to dynamic, Windows creates a partition that span the whole disk with the type of "Windows LVM" and manages its dynamic partitions within this space. So even if there is still free space on this disk, it is not visible to any other OS besides Windows. This happens with MBR and GPT disks both. I would like to share a Windows dynamic disk with some other OS. I have to have dynamic disks because I use Windows SoftRaid (mirrors). So, my questions are: Is there any way to "force" Windows to take up less then the whole disk when it converts a basic disk to dynamic? Will Windows tolerate having some other non-Windows partition on its dynamic disk?

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• moving dynamic disk from Windows to another Windows computer when original Windows is not available

  - by Andrei

  How do I mount dynamic disk on new system without access to the old OS ? I need to move Dynamic data disk from old Windows XP (Pro, SP3) system, where disk crashed, to new Windows system without having access to the old OS. On new system, Dynamic disk shows as "Dynamic - Foreign". Microfoft has instructions for moving Dynamic Disk [1]. But Microsoft assumes having access to the old system. But I do not have acess to the old system. I am struck with "Dynamic - Foreign" static of the disk on new system. Thanks WinXP Pro SP3 [1] http://technet.microsoft.com/en-us/library/cc779854(WS.10).aspx Move Disk to another computer.

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• Transfer disk image to larger/smaller disk

  - by forthrin

  I need to switch the hard drive on a 2006 iMac to a new SSD. I don't have the original installation CDs. I know I can order CDs from Apple, but this costs money. Someone told me it's possible to rip the image of the old drive and transfer to the new drive. If so, does the size of the new drive have to be exactly the same as the old? If not, my questions are: Is it possible to "stretch" the image from 120 MB disk to a 256 MB disk (numbers are examples)? If so, what is the command line for this? Likewise, is it possible to "shrink" an image from a larger disk (eg. 256 MB) to a smaller disk (eg. 120 MB), provided that the actual space used on the disk does not exceed 120 MB? How do you do this on the command line?

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• I want to reformat my external hard disk but disk utility said it could not be unmounted

  - by Faith

  Hi I wanted to reformat my HP 500GB hard disk to MS DOS (FAT) by using Disk Utility but Disk Utility kept saying that the hard disk cannot be unmounted. I tried googling it but nothing seems to answer my question. I'm not trying to reformat the hard disk in my Mac but my external hard disk! I usually format my hard disks to clear the documents I no longer need. And I'll change it to ExFat but currently, whenever I plug in my hard disk on Windows, the whole system just hangs there. Can someone help??

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• Thunderbird 16.0.1 filling disk space

  - by Kris

  I'm on Ubuntu 12.04 with Thunderbird 16.0.1 and Kernel 3.6.0-030600rc4-generic. I used Thunderbird for quite a while and never had any problems with it. But now it seems to fill up my disk space very fast: watch -n 1 df -h . so Ubuntu started giving out warnings. First I removed some files but not much later it had filled up around 600 MB. It eats around 50 MB/min while I just download 10 emails or so via IMAP. This behaviour is new and seems to be some kind of bug. I don't want to delete my old mails, so what else could I do?

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• Investigate disk writes further to find out which process writes to my SSD

  - by zuba

  I try to minimize disk writes to my new SSD system drive. I'm stuck with iostat output: ~ > iostat -d 10 /dev/sdb Linux 2.6.32-44-generic (Pluto) 13.11.2012 _i686_ (2 CPU) Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn sdb 8,60 212,67 119,45 21010156 11800488 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn sdb 3,00 0,00 40,00 0 400 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn sdb 1,70 0,00 18,40 0 184 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn sdb 1,20 0,00 28,80 0 288 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn sdb 2,20 0,00 32,80 0 328 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn sdb 1,20 0,00 23,20 0 232 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn sdb 3,40 19,20 42,40 192 424 As I see there are writes to sdb. How can I resolve which process writes? I know about iotop, but it doesn't show which filesystem is being accessed.

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• external disk dont work on ubuntu

  - by Skirki

  i have problem with in my ubuntu: when i connect external imation apollo disc i dont see a file system. Disk is working because in windows OS on this same computer it works as well. when i typed dmesg i got following logs [12913.260078] usb 4-1: new low speed USB device using ohci_hcd and address 15 [12913.440072] usb 4-1: device descriptor read/64, error -62 [12913.730058] usb 4-1: device descriptor read/64, error -62 [12914.020085] usb 4-1: new low speed USB device using ohci_hcd and address 16 [12914.200082] usb 4-1: device descriptor read/64, error -62 [12914.490150] usb 4-1: device descriptor read/64, error -62 [12914.780064] usb 4-1: new low speed USB device using ohci_hcd and address 17 [12915.200070] usb 4-1: device not accepting address 17, error -62 [12915.380081] usb 4-1: new low speed USB device using ohci_hcd and address 18 [12915.800065] usb 4-1: device not accepting address 18, error -62 [12915.800100] hub 4-0:1.0: unable to enumerate USB device on port 1 i trying to fix that by use commands: cd /sys/bus/pci/drivers/ehci_hcd echo -n "0000:00:02.1" unbind but it did not match the result and i don't have any other idea

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• SSD becomes hot, disk failure warning

  - by Aegluin

  I have a two weeks old SSD (Kingston SSDnow 64GB). Yesterday, the computer shutdown twice and after rebooting I was bombarded with disk failure warnings. I usually take such warnings serious (and backed up), but skeptical. After cooling down, the laptop boots again and the only red Smart value was the temperature (Ubuntu did not show the temperature of failure, but the at that time 29°). After refreshing the Smart status and doing a "self test", everything is green. Before contacting Kingston support, I would like to know whether it could be due to a software issue: Is it possible that it is false alarm, and how can I check? I installed Ubuntu 12.04 32bit and took care of alignment. I supposed Ubuntu set up with optimal settings for SSDs, how can I check that there was no mistake? The current temperature is around 40-56°. Is such a temperature abnormal for SSDs? Output of sudo smartctl --all /dev/sda: http://pastebin.ubuntu.com/1175940/

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• Virtual Win XP Mode stopped HP LJ Pro M1212nf MFP printing in Win 7 Pro

  - by Dee

  Virtual Win XP Mode stopped HP LJ Pro M1212nf MFP printing in Win 7 Pro: I am running Windows 7 Pro with Virtual Windows XP Mode. My printer is HP LaserJet Pro M1212nf MFP attached directly to a USB port of the computer. This printer was working fine in Windows 7, until I tried to attach the printer to the Virtual Windows XP Mode in order to load the printer driver in the Virtual Windows XP Mode. At that point, the printer disappeared from the list of USB devices on the toolbar at the top of the window of the Virtual Windows XP Mode. After installing the printer driver in the Virtual Windows XP Mode, the printer did not work in that mode and also no longer worked in Windows 7. In Windows 7 and in the Virtual Windows XP Mode, print files are sent to the print queue, but are never printed. In Windows 7, the print queue states that the printer is offline. In the Virtual Windows XP Mode, the printer can be toggled from "Print Offline" to "Print Online", but no print files are ever printed from the print queue. The printer acts as though it is no longer connected to the computer, even though it is still physically connected to the USB port of the computer. How can I get the printer to work again in Windows 7? (At this point, I am no longer interested in using the Virtual Windows XP Mode.) I have tried a large number of things to find and fix the printer problem, but have had no success. Device Manager cannot see the printer even though it is physically connected via USB port (have tried different USB ports) to the computer. Restoring Win 7 and Virtual Win XP Mode to times before the problem does not fix the problem. How can I get the computer to see the printer, so that I can print again in Win 7?

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• ddrescue a non-solaris disk gets I/O error

  - by rleir

  I am trying to get a disk image of a SCSI disk using ddrescue on Solaris10 (Sparc). The disk is non-solaris, and ddrescue gets an immediate I/O error (as does dd). I used format to label the disk as Solaris, and now ddrescue reads it fine. Is there any way to get the image without labelling the disk as Solaris?

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• Virtual Earth / Bing maps javascript file size

  - by Aquinas

  I am working with a site that uses virtual earth for its mapping. Unfortunately the file size of the referenced javascript file, ecn.dev.virtualearth.net/mapcontrol/mapcontrol.ashx?v=6.2, is 200 something kb before being expanded (to 970kb). As our site runs under https this file is not cached on the client, and can cause a few seconds delay to users, made more substantial in times of high load. My question is, is there anyway to get virtual earth to run smaller, or have more efficient lazy loading? At the moment it looks like our hands are tied.

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• Cloned partition not seen correctly by disk utility & gparted

  - by enrico

  Some days ago I cloned my /dev/sda1 partition with clonezilla in partition-to-partition mode to /dev/sda3. It worked, but now that I've finished the setup of system in /dev/sda3, I wanna reinstall /dev/sda1 for other stuffs. This partition is NOT mounted, but ubuntu's DISK UTILITY thinks it is, while it doesn't see as mounted the currently active / partition /dev/sda3. This is the df- TH output : Filesystem Type Size Used Avail Use% Mounted on /dev/sda3 ext4 32G 6.2G 24G 21% / udev devtmpfs 2.2G 13k 2.2G 1% /dev tmpfs tmpfs 845M 906k 844M 1% /run none tmpfs 5.3M 0 5.3M 0% /run/lock none tmpfs 2.2G 115k 2.2G 1% /run/shm /dev/sdb1 fuseblk 321G 147G 174G 46% /Dati Gparted instead, sees /dev/sda1 as NOT mounted (checked with Information option), but it display the BOOT flag on this partition, while the real booted partition /dev/sda3, hasn't it. If I try to format the /dev/sda1 partition, it gives me this error : GParted 0.8.1 --enable-libparted-dmraid Libparted 2.3 Format /dev/sda1 as ext2 00:00:02 ( ERROR ) calibrate /dev/sda1 00:00:00 ( SUCCESS ) path: /dev/sda1 start: 2048 end: 62500863 size: 62498816 (29.80 GiB) set partition type on /dev/sda1 00:00:02 ( SUCCESS ) new partition type: ext2 create new ext2 file system 00:00:00 ( ERROR ) mkfs.ext2 -L "" /dev/sda1 mke2fs 1.41.14 (22-Dec-2010) /dev/sda1 is mounted; will not make a filesystem here! How is possible to correct this behaviour ? Is this due to some lacking option in clonezilla phase ? TIA Enrico

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• Disk Space Full

  - by Loki

  Setting up Ubuntu 10.04 server, the / disk space shows full under df, however the du does not show any of the space used. This has several mounts to Gluster FS'. I have tried a forced FSCK and to no avail. ~# df -h Filesystem Size Used Avail Use% Mounted on /dev/md0 141G 132G 0 100% / none 3.0G 224K 3.0G 1% /dev none 3.0G 0 3.0G 0% /dev/shm none 3.0G 76K 3.0G 1% /var/run none 3.0G 0 3.0G 0% /var/lock none 3.0G 0 3.0G 0% /lib/init/rw /dev/sdb1 9.0T 7.1T 1.9T 80% /brick1 /dev/sdb2 9.0T 7.9T 1.1T 88% /brick2 localhost:/sanvol09 385T 330T 56T 86% /mnt/sanvol09 <- Gluster FS uses local software to contact the DFS I've attempted a tune2fs and same issue arises # du -h --max-depth=1 --one-file-system / 4.0K /selinux 0 /proc 47M /boot 31M /mnt 8.0K /brick1 8.0K /brick2 391M /lib 4.0K /opt 7.4M /bin 0 /sys 379M /var 5.6M /etc 16K /lost+found 43M /root 4.0K /srv 5.7M /home 4.0K /media 7.0M /sbin 0 /dev 4.0K /tmp 4.0K /cdrom 631M /usr 1.6G / more info # df -ih Filesystem Inodes IUsed IFree IUse% Mounted on /dev/md0 9.0M 91K 8.9M 1% / none 746K 770 745K 1% /dev none 747K 1 747K 1% /dev/shm none 747K 32 747K 1% /var/run none 747K 1 747K 1% /var/lock none 747K 3 747K 1% /lib/init/rw /dev/sdb1 583M 1.8M 581M 1% /brick1 /dev/sdb2 583M 1.9M 581M 1% /brick2 localhost:/sanvol09 25G 76M 25G 1% /mnt/sanvol09 The final question: df show's 100% used, and its not, any other known fixes?

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• Cloning a failing disk (Win 7)

  - by daveh551

  I have a Windows 7 machine with several partitions on a 1.5T drive. Windows has been complaining about disk errors and imminent failure, so I have purchased a new 2TB drive. The failing disk has not completely failed, and, in fact, I was able to boot Windows from it (after a couple tries) and examine the SMART logs - the only RED item was 1 sector being reallocated. But when I try to Clone it to the new Drive using Acronis True Image Home (2010), True Image can see the drive, the partitions, and the contents, but when it goes to actually do the clone, it says "Failed to move. Make sure the destination disk is not smaller than the source disk, and that there are not errors on the disk" (or something like that). What are some other options for simply cloning the failing drive. I'd like to clone the entire disk, but am willing to do it partition by partition if necessary. Was this a known failing of the 2010 edition of ATI, or is it really something hosed in my system. Would upgrading to the 2012 edition be likely to work any better? (I'd download the trial and try it out, but if I remember right, the cloning operation is disabled in the trial version), and I don't have enough free disk space to make an entire image.) What are some other cloning software packages if ATI won't work? Note that I'm only looking to clone the disk, not make an image as a back up - I use Ghost for that, and can fall back to that if I have to. It looks to me like CloneZilla would do the job. Any recommendations? Thanks, and if this duplicates other questions, I apologize.

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• How do I install and use Windows Virtual PC in Windows 8?

  - by KronoS

  I really like the integrated Virtual Machine that Windows had built-in with Windows 7 with Windows Virtual PC. I'm looking to install that again. I'd like to be able to install multiple machines as I did before (XP, Ubuntu, Etc,.) but I can't seem to find Windows Virtual PC for Windows 8 any more. Is it still available?, and if not was there something setup in place to replace it? How do I use it? NOTE TO ALL: While this is an accepted self posted answer feel free to edit, comment, or add an answer of your own. If your answer is better than mine, I will accept. This question was a Super User Question of the Week. Read the blog entry for more details or contribute to the blog yourself

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• Can i create a virtual machine on my laptop to be used with another monitor?

  - by Ranhiru

  OK, the scenario is like this... I have my laptop... and I have another user without a unit. He has only a keyboard, mouse and a monitor. Is there anyway that I can make him use my computer by creating a virtual environment which he will access, BUT, without interfering with my work. I use my laptop and view my OS from the laptop monitor. I create a virtual environment (some OS probably XP) and run it. The virtual environment is displayed in the connected monitor and the other user uses it using the extra keyboard/mouse and the monitor but without interfering my screen! Is this possible? Stupid? Futuristic? Need more hardware?

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• Recovering from apt-get upgrade gone wrong due to a full disk

  - by Peter

  I was performing an apt-get upgrade on an Ubuntu 12.04.5 LTS box that hadn't been updated in a little while and the upgrade failed due to 'No space left on device'. After a little while I worked out space meant inodes and I have freed some up but unfortunately things have been left something askew. I have tried manually installing the old versions of packages mentioned using dpkg -i but that doesn't help. I have tried apt-get upgrade and apt-get -f install to no avail. Results are below. Any ideas how to fix things up? FIXED: Installing the earlier versions again manually via dpkg -i and then apt-get -f install has done the trick. Not sure why this didn't work the first time. The packages in question are listed below but they will presumably vary. libssl1.0.0_1.0.1-4ubuntu5.14_i386.deb linux-headers-3.2.0-64-generic-pae_3.2.0-64.97_i386.deb linux-image-generic-pae_3.2.0.64.76_i386.deb linux-headers-3.2.0-64_3.2.0-64.97_all.deb linux-headers-generic-pae_3.2.0.64.76_i386.deb root@unlinked:/tmp# apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done You might want to run ‘apt-get -f install’ to correct these. The following packages have unmet dependencies. libssl-dev : Depends: libssl1.0.0 (= 1.0.1-4ubuntu5.14) but 1.0.1-4ubuntu5.17 is installed linux-generic-pae : Depends: linux-image-generic-pae (= 3.2.0.64.76) but 3.2.0.67.79 is installed Depends: linux-headers-generic-pae (= 3.2.0.64.76) but 3.2.0.67.79 is installed E: Unmet dependencies. Try using -f. root@unlinked:/tmp# apt-get -f install Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following packages were automatically installed and are no longer required: linux-headers-3.2.0-43-generic-pae linux-headers-3.2.0-38-generic-pae linux-headers-3.2.0-41-generic-pae linux-headers-3.2.0-36-generic-pae linux-headers-3.2.0-63-generic-pae linux-headers-3.2.0-58-generic-pae linux-headers-3.2.0-60-generic-pae linux-headers-3.2.0-55-generic-pae linux-headers-3.2.0-40 linux-headers-3.2.0-41 linux-headers-3.2.0-36 linux-headers-3.2.0-37 linux-headers-3.2.0-43 linux-headers-3.2.0-38 linux-headers-3.2.0-44 linux-headers-3.2.0-39 linux-headers-3.2.0-45 linux-headers-3.2.0-51 linux-headers-3.2.0-52 linux-headers-3.2.0-53 linux-headers-3.2.0-48 linux-headers-3.2.0-54 linux-headers-3.2.0-60 linux-headers-3.2.0-55 linux-headers-3.2.0-61 linux-headers-3.2.0-56 linux-headers-3.2.0-57 linux-headers-3.2.0-63 linux-headers-3.2.0-58 linux-headers-3.2.0-59 linux-headers-3.2.0-52-generic-pae linux-headers-3.2.0-44-generic-pae linux-headers-3.2.0-39-generic-pae linux-headers-3.2.0-37-generic-pae linux-headers-3.2.0-59-generic-pae linux-headers-3.2.0-61-generic-pae linux-headers-3.2.0-56-generic-pae linux-headers-3.2.0-53-generic-pae linux-headers-3.2.0-48-generic-pae linux-headers-3.2.0-45-generic-pae linux-headers-3.2.0-40-generic-pae linux-headers-3.2.0-57-generic-pae linux-headers-3.2.0-54-generic-pae linux-headers-3.2.0-51-generic-pae Use 'apt-get autoremove' to remove them. The following extra packages will be installed: libssl-dev linux-generic-pae The following packages will be upgraded: libssl-dev linux-generic-pae 2 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade. 2 not fully installed or removed. Need to get 0 B/1,427 kB of archives. After this operation, 1,024 B of additional disk space will be used. Do you want to continue [Y/n]? y dpkg: dependency problems prevent configuration of libssl-dev: libssl-dev depends on libssl1.0.0 (= 1.0.1-4ubuntu5.14); however: Version of libssl1.0.0 on system is 1.0.1-4ubuntu5.17. dpkg: error processing libssl-dev (--configure): dependency problems - leaving unconfigured No apport report written because the error message indicates it's a follow-up error from a previous failure. dpkg: dependency problems prevent configuration of linux-generic-pae: linux-generic-pae depends on linux-image-generic-pae (= 3.2.0.64.76); however: Version of linux-image-generic-pae on system is 3.2.0.67.79. linux-generic-pae depends on linux-headers-generic-pae (= 3.2.0.64.76); however: Version of linux-headers-generic-pae on system is 3.2.0.67.79. dpkg: error processing linux-generic-pae (--configure): dependency problems - leaving unconfigured No apport report written because the error message indicates it's a follow-up error from a previous failure. Errors were encountered while processing: libssl-dev linux-generic-pae E: Sub-process /usr/bin/dpkg returned an error code (1)

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• Time machine disk icon on boot disk

  - by Ben Lings

  The icon for Macintosh HD (my boot disk) shows as a Time Machine disk. There is a file .com.apple.timemachine.supported in the root of the disk. If I delete the file and restart the computer, the icon goes back to a normal HD icon. However, the .com.apple.timemachine.supported file is recreated at some point on boot because when I log in again, the file has been recreated. If then reboot again, the icon goes back to being a Time Machine one. Any ideas about what is creating this file and why? More importantly - how can I get it to stop? It looks like something thinks the boot disk should be a Time Machine volume, but what? Console.app shows the following messages at approximately hourly intervals: 19/01/2010 19:23:54 /System/Library/CoreServices/backupd[7459] Starting standard backup 19/01/2010 19:23:54 /System/Library/CoreServices/backupd[7459] Cookie file is not readable or does not exist at path: /.<12 hex digits of MAC address for en0> 19/01/2010 19:23:54 /System/Library/CoreServices/backupd[7459] Volume at path / does not appear to be the correct backup volume for this computer. (Cookies do not match) 19/01/2010 19:23:59 /System/Library/CoreServices/backupd[7459] Backup failed with error: 18 Other possibly relevant information: The boot HD isn't the original - the original failed so this is a SuperDuper'd clone of the original drive. I used to use the same disk for a SuperDuper clone as for Time Machine. These are the same same symptoms as this and this.

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• Use hard disk image like a regular hard disk on Linux

  - by jobnoorman

  If you have a hard disk image (including partition table, multiple partitions,...), is it possible to let Linux treat it as a regular hard disk? By "regular hard disk" I mean I would like to have the image show up as, for instance, /dev/hdx and its partitions as /dev/hdx1,... (I know I can mount one of the partitions in the image using "mount -o loop,offset=x ..." but I don't really like this option.)

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• Lost disk space in Windows 7, cannot find the missing

  - by Tsanders

  My hard drive is complaining it is low on disk space, but a strange thing seems to be happening: Explorer reports 10Gb of available space (on a 120 Gb hard disk), chkdsk in the command prompt does the same but if I use a disk space tool such as SpaceSniffer or WinDirStat, only 50Gb of data is found. My guess is that there somehow is a hold on a large block of disk space (but that's just a guess) because of a prior very large (40 Gb) download attempt that didn't complete. There isn't 40Gb of files on the drive (hidden or visible), yet Explorer insists that something is there. How can I claim back this hard disk drive (without formatting my hard disk)? SpaceMonger is providing a clue, reporting four unscannable folders which add up to 43Gb: C:\RRBackups C:\System Volume Information C:\Windows\Csc\v2.06 C:\Windows\System32\LogFiles\Wmi\RtBackup Does anybody know what these folders are for, and how I can claim back at least some space? Restore point claims about 4Gb, so that doesn't seem to be the main problem.

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• Proper use of disk to disk to tape backup using de-duplication and LTO5

  - by Michael

  I currently have ~12TB of data for a full disk to tape (LTO3) backup. Needless to say, it's now requiring over 16 tapes so I'm looking at other solutions. Here is what I've come up with. I'd like to hear the community's thoughts. Server for Disk-to-Disk BackupExec 2010 Using De-duplication Technology 20+TB worth of SATA drives LTO5 robotic library connected via SAS 1Gbps NIC connected to network What I envision is doing a full backup of my entire network which will initially take a long time over the 1Gbps NIC but once the de-duplication kicks in backups should be quick. I will then use the LTO5 to make disk to tape backups and archive those accordingly. What does everyone think? Any faster way of doing the initial full backup over the 1Gbps NIC? What will be my pain points? Is there a better way of doing what I'm trying to achieve?

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