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  • iSCSI SAN RAID 10 Performance -- Poor Read, Good Write

    - by Litzner
    I have a EqualLogic PS4000 SAN unit with the latest firmware, setup in RAID 10. I have 3 2TB Volumes on the SAN shared out via iSCSI on 2 eth ports on two different subnets. I have moved a test server over to this newly setup SAN, and my testing is showing me a problem. I am getting dismal read performance in everything except a test with 32 queue depth (see attach image) Write performance seems to be right about where it should be. I have tried MPIO on and off, on was slightly better but not much.

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  • Giving a permission to write and read from /var/www

    - by mako
    I need that directory, as I want to put my sites there, so that apache can run them.. It is my virtual directory path.. and I am new to linux.. I just want to read and write from that directory.. How do I enable creating/saving/reading files/folders from that directory? What command do I give? I tried a few, but I think I need to be a super user to make the folder writtable readable. Note that I dont care about security.

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  • Permissions needed to read event log messages remotely?

    - by Neolisk
    When running under a limited account, local event log messages are displaying fine, for remote computer I am getting this error: The description for Event ID ( xxxxx ) in Source ( yyyyy ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: zzzzz. Same remote computer works fine under domain administrator. I am currently experimenting with just the Event Viewer, by using Run As. Original issue is a PowerShell script which does Get-EventLog. Are there any special permissions that need to be in place to able to read event log messages remotely? Supposedly there is a simple solution in Windows 2008 and higher, i.e. just add user to Event Log Readers group. Is there anything like that for Windows 2003?

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  • How to troubleshoot memory card read?

    - by shinjin
    The built in memory card reader in my laptop mounts SD cards as read-only only. This happens both in Windows 7 and Ubuntu. Most of the time. Ever now an then it works. After a some non-deterministic combination of uninstalling/reinstalling/disabling/enabling of the driver with the mandatory reboots the card reader works for a while. Is there any sane way to troubleshoot if it's an actual hardware problem, or just a matter of drivers? I've tested it with several SD cards, that work just fine in other devices. System: Acer Aspire 8951G, Windows 7-64bit

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  • Read the contents of a ComboBox (or any other windows control) [closed]

    - by Homer
    I have a program that reads the contacts from my phone, but I can't export them from it. I'd like to use another program to read the contents of the controls on the original program. In this case, I would like to export the content of a dropdown list (combobox), containing these contacts. Can someone recommend a good program for this or recommend another method? I know I saw something for this last year on lifehacker.com in a collection of diagnostic tools, but I can't find it now.

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  • Can't read directory owned by my group

    - by Jonathan
    I moved the postgres data directory to a separate partition and it works great. The directory is owned by postgres user and postgres group. d-wx------ 11 postgres postgres 4.0K 2010-06-11 08:28 data/ I added myself to the group > sudo addgroup me postgres > groups me me : me adm dialout cdrom plugdev lpadmin admin sambashare postgres And gave the group read and execute permissions to everything in the directory. sudo chmod -R g+rx ./data d-wxr-x--- 11 postgres postgres 4.0K 2010-06-11 08:28 data/ But I still can not CD or LS the directory. > ls data ls: cannot open directory data: Permission denied What beginner mistake am I making?

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  • Forums that compell one to read? [closed]

    - by Alex
    I want to create a forum for a very specific, somewhat fight-club-like area of information. The participants need to be unique, not people I know. To be precise, it needs to be an entirely random set of participants. To do this I am going on the assumption that whatever a potential viewer sees when he visits this particular domain he will be COMPELLED to go further. He feels an intense urge within him to read more. I need forum software that will evoke this feeling regardless of the content. Minimal and aesthetically fluid and functional. It must have.. zen.. What are my options?

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  • Why doesnt file uploads work for a specific customer?

    - by nimo9367
    We have for some time now experienced some unexplainable behavior when a certain customer is trying to upload files to our web based application using a standard web form. It's a CGI based application and the server is running IIS6. However it works fine for all of our other customers using the same server and application so this must be a client side related issue? The request basically times out and you get to "page cannot be displayed". Does anyone have any idea of what might be the source of this problem?

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  • Can't Read/Write the Hard disk used in NAS

    - by mgpyone
    I've lately purchased a Synology DS212j and I intended to use my two 3.5" HDs into it. One of them was in used as an external HD. Thus when I install these two unit in NAS, it asked me to formatted in order to used with its format (I think it's ext3?) . I installed the Disks and omit the formatting option. I just got another 3.5" Hard Disk now. I've installed it in the NAS. everything's fine. However, when I take out the (used) HD from the NAS and install back in the standalone casing, I found out that it can't be read from both OSX an Windows 7. I've tried with ext2sd and I only found 2GB portion of the whole 1.5 TB Hard Disk. Here's another reference from EASEUS Partition Master

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  • Can't change read only folder in windows 7

    - by James Drinkard
    I'm trying to run a Spring MVC 2.5 tutorial and when I run the ant script for a deploy, I get this error: deploy: [copy] Copying 2 files to C:\apache-tomcat-7.0.8\webapps\c:\projects\workspace\springapp BUILD FAILED C:\projects\workspace\springapp\build.xml:46: Failed to copy C:\projects\workspace\springapp\war\WEB-INF\web.xml to C:\apache-tomcat-7.0.8\webapps\c:\projects\workspace\springapp\WEB-INF\web.xml due to failed to create the parent directory for C:\apache-tomcat-7.0.8\webapps\c:\projects\workspace\springapp\WEB-INF\web.xml After reviewing the directory: springapp I saw the properties as read-only. No problem I thought as I'm logging in as administrator. However, changing the uac settings, going to a command prompt as admin and then trying to change the properties of the folder with attrib, making me the owner of the folder, changing the security settings etc... did nothing. I can't seem to change this folder to anything. So my question is, how do I change the settings on that folder so ANT can make changes to that folder?

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  • Cannot read/write a second drive in MBP 13

    - by Carlos
    I changed my original HDD for a SDD earlier this year and I just got one more SSD for my MBP 13 (2012) that I used to replace DVD drive. I'm using Mountain Lion. The SSD looks to be recognized allright, but I can't format it. Then I removed the main drive and tried the new one as the main drive and did the boot using a USB drive with MAC OS and everyhing worked as it should (like I just had one drive). However when I bring the first drive back together with the second they both show up but I can't use it. Seems like I have no permission, but when I look at it's properties it says I can read and write to it. Any ideas? Thanks a lot!

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  • Slideshow from excel file listing the caption, sound file and image file?

    - by Slabo
    Hello, I have excel files with the following header: Caption Sound: Location of sound file Image: Location of image file How can I make a slideshow from this? Each slide should show image, caption, and play sound automatically according to the excel list. I don't care what software I use, if I can get the job done. Total slides ~10,000. In case interested,this is review material for English second language students. Any help appreciated, Thanks

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  • How to preserve file attributes when one copies files in Windows?

    - by netvope
    On Linux, we can simply do: cp -pr directory How to do that in Windows? Can it be done in Windows Explorer? Any GUI tool suggestions? It would be the best if I can keep the NTFS permissions and creation/modification/access time. At a minimum, I need to preserve the modification date for the files and the directories. Windows Explorer's copy does not preserve the modification date for directories.

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  • Improve efficiency when using parallel to read from compressed stream

    - by Yoga
    Is another question extended from the previous one [1] I have a compressed file and stream them to feed into a python program, e.g. bzcat data.bz2 | parallel --no-notice -j16 --pipe python parse.py > result.txt The parse.py can read from stdin continusuoly and print to stdout My ec2 instance is 16 cores but from the top command it is showing 3 to 4 load average only. From the ps, I am seeing a lot of stuffs like.. sh -c 'dd bs=1 count=1 of=/tmp/7D_YxccfY7.chr 2>/dev/null'; I know I can improve using the -a in.txtto improve performance, but with my case I am streaming from bz2 (I cannot exact it since I don't have enought disk space) How to improve the efficiency for my case? [1] Gnu parallel not utilizing all the CPU

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  • Unable to read USB External HD after aborted back up

    - by Stjepan
    I have two PC laptops. On one of the two PC's (Win 7) I Aborted a back up and ejected the drive. Now that same pc wants to format the drive. I plugged the drive into the other pc (Win XP) and that one reads the drive and all data stored. Why does one want to format the drive and the other does not? .... My apologies for not being clearer with my original question and thanks for the responses, so; The drive is not a flash stick, its an external WD Hard drive plugged in via the USB. The two tips provided did not resolve the issue. Strangely, the pc with win XP can read the drive but the pc that the HD was plugged into when the backup was aborted still wants to format the drive. Stjep

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  • Is Clonezilla a good option for a daily batch-file-based backup of a Windows XP PC?

    - by rossmcm
    Having just been through the process of rebuilding a Windows XP desktop machine when the disk died, I'm anxious to make it a lot less painful. I didn't lose any data, but reinstalling everything took ages. Clonezilla seems to be a highly mentioned free backup tool. How easy would it be to implement the following: a nightly unattended backup of the desktop's disk image to another network machine (or a second drive in the machine), hopefully with compression. restore from that image using USB boot media. so that if I come in to work and find the hard drive has tanked, it is just a matter of replacing the dead drive with a new one, booting from the USB stick, choosing the image to restore, and then finding something else to do for an hour or two. When it is finished I would hopefully be back to where I was.

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  • Where does the windows file sharing account info save to?

    - by Stan
    OS: windows server 2003 When open explore and enter \192.168.1.xxx\c$ and prompt to ask login id and password, where does this login info save to? And even if I choose not to save, seems the session will still remain until reboot? Can the community please suggestion some keyword to this and explain how it works a bit? Thanks.

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  • Utility to record IO statistics (random/sequential, block sizes, read/write ratio) in Unix

    - by Michael Pearson
    As part of provisioning our new server (see other SF) I'd like to find out the following: ratio of random to sequential reads & writes amount of data read & written at a time (pref in histogram form) I can already figure out our reads/writes on a per-operation and overall data level using iostat & dstat, but I'd like to know more. For example, I'd like to know that we're mostly random 16kb reads, or a lot of sequential 64kb reads with random writes. We're (currently) on an Ubuntu 10.04 VM. Is there a utility that I can run that will record and present this information for me?

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  • How do you limit the bandwidth for a file copy?

    - by wizard
    I've got an old windows 2000 box in a remote location with a T1 connection and a vpn to my location. I normally use smb mounts to transfer files but now it's time to decommission the server and copy it's backups to my location. I have about 40 gigabytes (compressed) to copy. I'm prepared for it to take a long time, but I have a few caveats. I need to limit the bandwidth so terminal service connections to the site are not affected I want to be able to resume a partial transfer There are a few small files and several large files (10-20 gigabytes). I'm familiar with rsync on *nix platforms but have had bad luck with windows and I don't know that it will really keep partially transfered files. What do you use?

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  • Unable to read DVD on laptop

    - by usabilitest
    I have a DVD disk that I created on an HP laptop. I believe it was setup to be accessed as a USB device. I do not have that laptop any longer and I still would like to access the files on that DVD from my current DELL laptop but it can not open the disk. My guess, the session nwas not closed on the disk and for some reason the new laptop can not read it. My question is, is there any way I can access the files using new laptop, of do I need to find similar HP to try to access the files and possibly close the session? Are there any utilities out there that could help me? Thanks.

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