Hard Drive Data Comparison Tool

Hi guys -Wonder if any of you can help.
I'm trying to discover if there is a data comparison tool out there that is free, or not too costly.The company I work for produce a lot of data daily and this is stored on our servers so it can be easily accessed by all. At some point there has been a duplicate of this data made on another volume.
So hard drive 'A' has data on, as does hard drive 'B'. I'm trying to find a way of comparing both these drives against each other as some of the data is newer on 'A' and some is newer on 'B'.The end result id like would be just one single set of data, so I can remove the duplicate to free up some space. Then I could create a nice back up of the most recent data.If any of you spiceheads is able to shed some light on this, that would be greatly appreciated.Thanks in advance!
This topic first appeared in the Spiceworks Community

Hi guys -Wonder if any of you can help.
I'm trying to discover if there is a data comparison tool out there that is free, or not too costly.The company I work for produce a lot of data daily and this is stored on our servers so it can be easily accessed by all. At some point there has been a duplicate of this data made on another volume.
So hard drive 'A' has data on, as does hard drive 'B'. I'm trying to find a way of comparing both these drives against each other as some of the data is newer on 'A' and some is newer on 'B'.The end result id like would be just one single set of data, so I can remove the duplicate to free up some space. Then I could create a nice back up of the most recent data.If any of you spiceheads is able to shed some light on this, that would be greatly appreciated.Thanks in advance!
This topic first appeared in the Spiceworks Community

Similar Messages

  • I am migrating to a new iMac via TimeMachine back up.  My iPhoto libraries are on external drive.  I'd like to migrate only the internal hard drive data to the new internal Drive then just plug in iPhoto library drive.  Is this going be a problem?

    I am migrating to a new iMac via TimeMachine back up.  My iPhoto libraries are on an external drive.  Both drives are backed up on Time Machine.  I'd like to migrate only the old internal hard drive data to the new internal Drive and then just plug in iPhoto library drive to the new iMac.  This would save having to transfer several hundred GBs of data.  Will this work using Set Up Assistant?

    Your user account on the new Mac must have a different UID than on the old one.  See the pink box in Problems after using Migration Assistant for an explanation.
    You'll need to change the permissions on the iPhoto library on the external HD.  Do a Get Info on it, click the padlock at the bottom of the Sharing & Permissions section of the Info window and enter your Admin password. 
    Then click the plus sign, select the user account you want on the next screen, and click Select.   Then change Read only to Read & Write for that user via the little arrows.  Finally, click the "gear" icon and select Apply to enclosed items.  That may take a few mintutes on a large library.

  • Oracle DB schema and data comparison tools that compare BLOBs

    I'm looking for schema and data comparison tool like DBDiff or DbTools, but it has to be able to compare BLOB and CLOB fields. I went thru few products available on the market but could not find any that does that.
    Can you please recommend tool that will help me with it.
    Thanks,
    E

    Hi.
    I use Comparenicus for Oracle from Orbium Software. It compares data and schema, CLOBs, BLOBs..
    It can also handle large tables which is very useful for some of my environments.
    Last (but not least) it has a unique feature for copying selective data from one DB to another. You can read about it this post:
    Efficient way to copy business data from Production DB to Test DB
    Enjoy..

  • Use time machine to save both the iMac hard drive data & an external one

    Can i program time machine to save both the iMac hard drive data & an external one

    Yes, but it's not advised because it's placing too many backups into one hardware basket, also it will greatly shorted your TimeMachine states where you can go back in time to undelete a file.
    It's better to have two backups, each on seperate hardware of each drive.
    So if you have a boot drive and a external drive, you should have a clone drive and TimeMachine drive of the boot drive, and a backup drive of the external drive. (or two depending how valuable the data is)
    If you drop a drive, or knock it over while it's running, all the data could be lost.
    With only TimeMachine as your backup, if you drop or lose it, or if it gets stolen, it takes two backups with it.
    A clone and a backp of the external drive stored safely off site is ideal, update it once a week or bi weekly as needed.
    A clone is bootable, and is exactly like your boot drive, up in seconds.
    A TimeMachine can only boot to restore to a new drive if your boot drive dies for some reason.
    read more here
    Most commonly used backup methods

  • Help! Need to recover lost hard drive data after creating a partition!

    So, I'm the world's biggest idiot, and I was trying to reformat my hard drive so that I could bring the documents from my Mac to my PC.
    All of the docs were perfectly organized in folders and subfolders a long time ago, and once that had been done, I deleted everything off of the MacBook itself. I never thought I'd have to move all of the docs to a PC, but alas, nothing ever goes the way we plan now does it?
    Anyways, I created a FAT 32 partition not realizing it would delete everything I already had on the hard drive, so now I need to recover all of that.
    Is there ANY way that I can recover all the data I lost?
    Pls respond.

    When you create a partition, the partition is the erased so all content is lost.  There are data recovery services that may be able to recover the material, but they are very, very expensive, if they can even succeed with this kind of erasure.
    Check and see if there are any hard drive data recovery services in your area.

  • Hard Drive scanner/diagnostic tool?

    Hey all,
    I have a 21" i3 3.06 Ghz iMac. I got it in 2011 and the warranty has expired.
    Anyway, I notice that every few months after clean installing Snow Leopard, my hard drive would be come corrupt necessitating a complete reinstall of SL again.
    This occurs every few months. The OS is up to date, no malware, no weird software of anything installed. Basically, everytime I boot up, it'd take about 5-10 minutes as it does the gray screen with the spinning wheel with a progress bar at the bottom of the screen.
    I have tried repairing permissions and scanning for errors using disk utilities within SL and via my SL install disc. However, I am unable to repair disk because it is corrupted.
    Is there any other HDD scanning tools that I can use to see whether or not my hard drive is defective?
    Thanks!

    I'm probably a little late to this discussion, but thought I'd throw out the information anyway, especially since "Linc Davis" mentioned failing cables.
    First, it does sound like your drive is bad, not a cable. The reason I say this is that if it was a cable problem, unless it was really, really severe, it wouldn't always appear when the unit is starting up.
    We use a product called Scannerz which analyzes hard drives and system faults (like cables and logic board cracks.) Info can be obtained from this site:
    http://www.scsc-online.com
    I've had both a bad drive on one unit, and a bad cable on another. The difference is that a drive with bad sectors on it will always fail whenever the sectors are accessed, whereas bad cables, usually with intermittent connections (think of a loose light bulb) will appear whenever and wherever they care to.
    I had a system a long time ago with bad sectors in the OS region. When the system started, it would always either lock up and try incessantly to boot up, or it succeeded the boot process would get screwed up because it was reading bad data. In this case I replaced the disk. Scannerz docs say I probably could have reformatted and zeroed the drive to re-map bad sectors, but I didn't know any better at the time, and it also gave me the opportunity to get a bigger drive (this was a long time ago, and I dumped a 10G drive for a 40G drive - laugh now if you want to but 10 years ago that was a big deal!)
    We got Scannerz because they have (or had) a video on their site that showed test results on a unit with a failing cable (can't guarntee it's still there - it was months ago and their web site seems to be undergoing constant modification). We were using a much more expensive tool and it was giving us results that I can only call idiotic. On one test the drive came up with problems at locations A, B, C, and D on the drive, on the next test there were no problems, then the problems were at locations P, Q, R, S, T (the letters represent sector locations). It made no sense. Scannerz apparently targets these types of problems and my company's techs were able to isolate it to a crack in the plastic cable connecting the hard drive to the logic board.
    Some people claim it's too hard to use, but I don't see how. Look at the comments on it on CNET for example. One guy says you need to be a genius to use it, another almost implies a 5 year old could use it. The tool is testing only. It doesn't claim to do anything it can't.

  • Can I delete hard drive data on dead macbook air?

    I have a mid 2012 macbook air running Mavericks. Well, it used to run Mavericks. Water damage got to the logic board and now the computer does not boot (as diagnosed by Apple). I want to sell the computer, since I can still get a decent amount for it as is. But, I am worried that the information on the hard drive will be vulnerable once the new owner fixes it. I do have a password to my user account. But, I assume that some people could get around that pretty easy and get to my data.
    My question: what are my options for purging my hard drive before selling? If they aren't any good options, I will just trash (recycle) it.
    Thank you for the help!

    So to remove the drive you'll need a special tool, a pentalobe screwdriver:
    https://www.ifixit.com/Guide/MacBook+Air+13-Inch+Mid+2012+Battery+Replacement/10 950
    iFixIt sells that screwdriver:
    https://www.ifixit.com/Tools/MacBook-Air-5-Point-Pentalobe-Screwdriver/IF145-090 -3
    Also here's my standard blurb about a liquid incident:
    "Whenever a liquid spill occurs the first thing that has to happen is the laptop should be shut down immediately. All power must be removed as soon as possible.
    It is especially important that the battery be disconnected and removed.
    No attempt should be made to start/restart the computer since this could potentially damage the logic board beyond all repair.
    All affected parts must be removed from the laptop and carefully and closely inspected. Any involved area should be marked for special treatment.
    Then all affected parts would be washed in deionized water and blown dry with compressed air. (In a water spill the deionized water is probably not as critical. Depends on the mineral content of the water.).
    This is especially true of the large chips on the logic board. Liquid can wick under them and cause havoc for weeks if not months and years after the incident, depends on the liquid..
    The logic board should be placed in a drying/dehumidifing oven for at least two days. Longer depending on the spill.The keyboard is a separate matter."

  • Retrieving Hard Drive data

    My external media hard drive (250Gb Macpower FireWire 400/800) has suddenly, unaccountably stopped being detected by the laptop (the icon doesn't appear on the desktop). I've tried everything I can think of to retrieve it, but to no avail. I've used the Apple disk tools, and also tried to run DiskWarrior 4, but in each case I get the error message that the disk is unreadable and I'll I can do is re-initialise.
    Any suggestions on how to access my data would be much appreciated, including suggestions of third-party software that might do the trick.
    Many thanks,
    Oliver.

    Sans sending it to a drive rescue service, which will probably cost you a very pretty penny, might try Data Rescue II... ProSoft engineering sells this software. It will recover the data on a sector by sector basis and copy it to another drive, and many times it works great. I've used it several times with success.
    Jerry

  • How do you save iphone 4 videos to mac hard drive/data DVD?  I just want to backup my videos.

    I sync my iphone 4 to my macbook and my movies are on itunes/imovie, but how do I save the movies to my hard drive or a data DVD so I have a back up?  Any help is appreciated.  Thanks in advance.

    use iphoto and import the videos and pictures, then burn a disc.

  • Time Capsule Hard Drive Data

    Of course my Time Capsule has failed, but the hard drive is fine. I can easily mount it and see the 3 partitions. Problem is, I cannot access the data on the storage partition. "you don't have permission... etc". I have googled this for hours and I cannot find anyone having this problem. Surely there is a simple way to access the data on a fully functioning TC hard drive without purchasing a new TC and then swapping the drives.
    Does anyone know how to do this or could someone please post a link to someplace that does?
    Thanks

    Is this a Time Machine backup you are trying to recover or actual files?
    When you used the TC did you have disk password set? Most people leave it to device password but if you increase the security level to disk you have changed the permissions when on the TC.
    Normally you should just be able to change the permissions in the normal way.
    eg on Mavericks.
    http://support.apple.com/kb/PH13799
    If you need files and have windows running.. windows can generally see the files as it is rather less than interested in permissions.. it is often a quick and dirty way around the problem.
    The actual command line for changing permissions..
    http://www.chriswrites.com/2012/04/how-to-change-file-permissions-using-the-term inal/
    You do realise how dangerous doing command line stuff tends to be, I hope!!
    What size drive and what era TC did it come out of?
    If you are in Australia I could help you. TC shells are something I generally have loads of.
    And getting a new shell can still be a good way to go.. buy a second hand TC of the same model.. change hdd.. then you get your files back.. you can sell it on ebay again when you are finished.

  • External Hard Drive Data Recovery

    Hello Apple Support Communities!
    I have a Western Digital 320GB external hard drive and it currently has 0 bytes available. This has prevented me from even viewing the hard drive on my finder window. I can only see it in disk utility. I have tried repairing the disk and verifying it but neither has worked in letting me view my files. I use the hard drive for movies and now i can't see them! Can anyone recommend free data recovery software so i can delete a few files so that i can view my hard drive? Thank you!

    I found a way to sort of mount the drive and consequently do a data recovery.
    What i did was highlight the 'iphone-dump.img' and opened it with 'Disk Utility'. Inside of 'Disk Utility', I double-clicked the 'iphone-dump.img' icon and low and behold, it split into two drives, despite it giving me an 'Unable to attach 'iphone-dump.img' (no mountable file systems)' message at the same time.
    I wasn't able to do much with it in 'Disk Utility' from there on, so I opened 'Data Rescue III' and it became available to scan as a 'Virtual Interface' called 'Apple read:write'. I performed a scan and was able to locate my missing photos. It took a while because there were several duplicates of older photos. I think this is because each time I've restored the phone from a backup, data has been placed in a different location on the hard drive. Therefore, it has not overwritten these very same photos that have been on most of my backups for some time.
    I wasn't able to find my missing voice memos from the 'QuickVoice' application though. They appear not to be there. I found the existing ones from the recovery. They must be somewhere surely? Maybe the photos are stored in a different way since the photo application is a default app and 'QuickVoice' is a bought app.   ?
    Ideas anyone

  • Hard drive data cable issues

    I have a 2010 13" Macbook pro. It was refurbished when bought in 2011, and I've had it since May of 2011. The first time I had the flashing folder with a question mark was about a year after it was bought in summer 2012, and the data cable connecting the hard drive and motherboard was replaced. I have now had the issue two more times, once in March 2013 and again March 2014. All three times I had the flashing folder with a question mark, and all three times the data cable was the issue. While I am glad the issue has not been the hard drive itself, I am really peeved that I keep having this issue, and have to be without a computer for at least a week while it's being diagnosed and repaired.
    I read some other forums and the cable seems to be a fairly common issue, but I am wondering why I have had this issue 3 times in the last year and a half. I keep my computer on a cooling pad because I thought the heat caused the problem the first time, and I take very good care of it. Does any one have any ideas what could cause the data cable to have issues? Could it be something I am doing, or have I just been unlucky and gotten faulty cables? I don't want to have to replace this every year, it's getting a little ridiculous.
    Thanks in adavance for any input!

    The best you can do is contact Apple. This is not a user caused problem.
    Genius reservation http://www.apple.com/retail/geniusbar/
    on-line https://getsupport.apple.com/GetproductgroupList.action
    check warranty https://selfsolve.apple.com/agreementWarrantyDynamic.do
    https://www.apple.com/contact/
    United States
1-800-275-2273

  • Hard Drive Data Transfer rate setting

    I am looking at upgrading my MacBook hard drive, but the drive I wanted to get is SATA-300, and I want to set the data transfer speed to 150 MB/sec to reduce the power draw of the drive without changing performance much. I know in Windows you can do this in to BIOS settings. Does anyone know how I would do this in Leopard? I assume it would be Terminal commands.

    As far as I know, they were just talking about Laptop drives only. It was a great article with lots of detail.
    I am trying to find the article I read on setting BIOS, but pages that carry the info on Laptop power consumption that I was reading were...
    http://www.tomshardware.com/2008/02/18/wdand_toshiba_join_theclub/page2.html
    http://www.tomshardware.com/2008/01/24/hdd_galore/page4.html
    http://www.tomshardware.co.uk/Notebook-harddrive,review-2376-3.html

  • Crashed Hard Disk! What is the Hard Drive Data Recovery Service, & why wasn't it offered?

    I thought I had purchased the best extended warranty available.  Apparently the 3-year warranty I bought didn't include the Hard Drive Recovery Service.  I can't help but wonder why it wasn't mentioned when I bought the extended warranty. Now I have a trashed HD, and am looking at where I go from here.  I was told I should send the drive back to Toshiba... the manufacturer... for the most secure data recovery.  WHAT NOW?      who can steer me toward the best solution.  Of course, I don't have unlimited funds... and someone said it would probably cost $500 to $1000 to recover the info on my HD.  Arrgggh.  Help.
    This is a TouchSmart Tx2 laptop... not even a year old.  Under original warranty and has the 3-year extended warranty.

    I will check out your link...http://lowcostrecovery.com/pricing.html 
    Do you know anything about carbonite?  Perhaps had I gotten that service, I wouldn't be in this position.  I do back up a lot, when I'm at home.  However, we have been traveling for a coupe of months... and I'm a photographer.  Poof.  photos.   Important ones!  The tech who looked at my drive after putting it in an enclosure said he didn't "see" any files on it.  He said he HOPED I could get them recovered.  Gave me a sick feeling, as he didn't seem very hopeful that even data recovery would work. 
    Thanks for your replies.

  • Powerbook Hard Drive Data Recovery

    A few months back, I bumped the desk that my Powerbook was on pretty hard. The laptop did a bounce, the desktop locked up, and that was it. Whenever I attempt to boot up the drive, it makes god-awful sounds, and the farthest I get is the grey Apple logo - no spinning wheel. Sometimes just a blank grey screen. Seems pretty clear that it's a physical problem, as if the hard drive can't spin. I have no idea what this means for the data - if it could possibly still be in tact and retrievable (no, I don't have it backed up, and yes, I know that's a no-no).
    I tried hooking up the Powerbook to my desktop in Firewire target disk mode, but the screen just stayed black after powering on. I tried booting from my DiskWarrior 3.0.3 CD, but it will not look at the hard drive, because it's the boot up drive.
    The prospect of a home remedy looks pretty hopeless at this point, but if you know of anything else I can try, please let me know. And if not, I'd appreciate it if you could point me in the direction of a reliable, affordable service company that might be able to assist. Many thanks.
    -Vince

    if the drive makes noises, problem is likely with the hardware and running utilities may not be able to fix it.
    if possible, get a qualified technician to check internal connections or possibly remove the drive and connect it via external enclosure/adapter
    DriveSavers is one of the best known recovery providers:
    http://www.drivesaversdatarecovery.com/

Maybe you are looking for