Your iMac's Time Machine Hard Drive

Discussion in 'iMac' started by fivepoint, Feb 17, 2008.

  1. fivepoint macrumors 65816

    fivepoint

    Joined:
    Sep 28, 2007
    Location:
    IOWA
    #1
    I was just wondering what all of you used for your external Time Machine drive. I just ordered THIS quad-interface 750GB hard drive from buy.com for only $240, and I think I got a pretty good deal.

    It will be nice to not have to 'exclude' items for backup now... :)
     
  2. harcosparky macrumors 68020

    Joined:
    Jan 14, 2008
    #2
    I was using a Western Digital My Book 750 GB ..... but as we speak moving up to a 1TB unit with plans to expand to 2GB.
     
  3. Koodauw macrumors 68040

    Koodauw

    Joined:
    Nov 17, 2003
    Location:
    Madison
    #3
    I use a G-Tech Drive, just as they do in the Time Machine Demo video.
     
  4. CBAviator macrumors 6502

    Joined:
    Jun 10, 2007
    Location:
    Nederland
    #4
    Well, I had to get something restored on my iMac's hard drive that was accidently deleted and had to be recovered professionally (it was deleted due to an error on my computer). I took my iMac to the Apple store to have them pull the hard drive out so I could take the drive to a recovery place.

    Well, Apple thought the drive had malfunctioned so they replaced it! Because the original drive was fine, I bought an external enclosure for the original drive and have been using it as my back up every since!
     
  5. basesloaded190 macrumors 68030

    basesloaded190

    Joined:
    Oct 16, 2007
    Location:
    Wisconsin
    #5
    do you mean 1TB? lol i don't think you can do any back up with only 1 gig
     
  6. boonleng macrumors regular

    Joined:
    Aug 30, 2007
    Location:
    United States
    #6
    I use a Seagate 750GB SATA drive inside a Vantec enclosure. The unit is hooked up to iMac through a USB 2.0.
     
  7. Leon Kowalski macrumors 6502a

    Leon Kowalski

    Joined:
    Sep 20, 2007
    Location:
    Gondwanaland Reunification Front HQ
    #7
    I prefer to buy the enclosure and drive separately -- mainly because you
    seldom know what you're getting with a "pre-assembled" external drive.

    - Only the fastest HD mechanisms are fast enough to take full advantage
    of the speed potential of firewire 800. If the manufacturer doesn't specify
    which drive they're using (or its sustained R/W transfer rates) it's a safe
    bet that they're not using the highest performance drives available.

    - Only SATA-based external enclosures provide a pathway for upgrades
    to high-performance drives of the future. EIDE/PATA is an obsolete, dead
    technology, but many "pre-packaged" externals are still using EIDE/PATA
    drives. Often, the internal interface type is unspecified -- or in the case
    of WD MyBooks, the manufacturer reserves the right to supply either type
    (under the same model number) -- "depending on availability."

    There are lots of good external enclosures out there, but my favorite is
    Icy Dock's USB/FW800 model MB559UEB-1S. (It also works on FW400,
    with a cheap 9-pin to 6-pin firewire adapter cable). It lacks the eSATA
    capability of "quad interface" enclosures -- but (unfortunately), iMacs
    don't have eSATA ports, so "quad" is nice but currently useless on iMac.

    http://www.icydock.com/product/mb559ueb-1s.html

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817198006

    http://www.newegg.com/Product/Product.aspx?Item=N82E16817994038

    There are only a few high-capacity drives (500GB & up) fast enough to
    make full use of FW800 speeds. Seagate's 7200.11 & ES.2 product lines
    (105 GB/s, sustained) are available in 500GB, 750GB and 1TB. Western
    Digital's 750GB WD7500AAKS is nearly as fast (95 GB/s) but I don't know
    of any 500GB or 1TB Western Digital HDs with equivalent performance.
    Samsung's 1TB SpinPointF is also extremely fast -- but doesn't seem to
    match the Seagates in "overall performance" (see tomshardware.com).

    The price of the Icy Dock enclosure plus a fast 750GB drive is typically
    about the same as a "pre-assembled" external HD with unknown parts:
    about $235 with the WD7500AAKS, $250 with a Seagate ST3750330AS.

    LK
     
  8. Siriosys macrumors regular

    Siriosys

    Joined:
    Dec 24, 2007
    Location:
    New Zealand
    #8
    I'd have to agree on preferring to DIY it so I have purchased a Plaides MacPower external enclosure which does FW400/800, eSata, and USB2.

    Inside is a nice Samsung 750Gb Highspeed 7200 RPM (32Mb Cache) drive attached via the FW800 port.

    Very nice and fast and runs cool....
     
  9. Morod macrumors 68000

    Morod

    Joined:
    Jan 1, 2008
    Location:
    On The Nickel, over there....
    #9
    That Iomega looks like a nice one, and at a good price too. I went with a 500 GB G-Tech Drive. It seems to work okay as well. And the Time Machine app itself. What a great piece of work. Talk about set and forget. Why nobody offered something like this before I have no idea. But I'm glad it's available now. It should save a lot of people a lot of grief over the years.
    Morod
     
  10. AppleFan360 macrumors 68020

    Joined:
    Jan 26, 2008
    #10
    I had an extra 320 GB ESATA drive laying around that I threw into a $25 USB 2 Enclosure. Works nicely. The time machine drive doesn't have to be anything fancy. It only should be at least as large as the drive inside of your iMac.
     
  11. fivepoint thread starter macrumors 65816

    fivepoint

    Joined:
    Sep 28, 2007
    Location:
    IOWA
    #11
    Do most of you use a hard drive that is smaller, the same size, or larger than your iMac's internal drive. I suppose it couldn't have hurt for me to buy a larger (1TB) drive for Time Machine to make backups from further in the past... but I decided on this one because of the great price.

    I suppose it will be fine as long as I don't completely fill up the internal drive any time soon.

    I was also considering using some sort of RAID device, but since the data will already be in two locations (internal and external) I didn't think it would be worth it. I suppose if I had it set up as a RAID 1 (maybe 0) I could have had some speed improvements... I don't know, I still don't completely understand the different flavors of RAID.

    Does anyone out there use a RAID device? Could you explain your setup and why you utilize it?
     
  12. BaronvdB macrumors 6502

    BaronvdB

    Joined:
    Oct 22, 2007
    #12
    wd mybook pro 250gb...i may have to upgrade to a larger drive soon...i already has this one before time machine came out.
     
  13. harcosparky macrumors 68020

    Joined:
    Jan 14, 2008
    #13
    Given that the OP asked about " Time Machine " drives for backing up data, blazing high speed drives are not really needed. Now if he asked about video editing, or game playing it would be a consideration.

    It would not make sense to use a drive for backup that is smaller than the drive you are backing up.



    I think 'tomshardware.com' need to visit the Seagate and Western Digital websites. Those numbers do not look right to me.

    Seagate says the 7200.11 is :
    Western Digital says the WD7500AAKS is:




    Circuit City has the 1TB Western Digital Mybook for $239 ... it is USB 2.0 only, but what do you need for a backup drive?
     
  14. Cyclotrode macrumors regular

    Cyclotrode

    Joined:
    Jun 30, 2007
    Location:
    Virginia
    #14
    I don't have an external drive yet, but will when the 1TB Time Capsule is released later this month.
     
  15. jerry1 macrumors member

    Joined:
    Aug 15, 2007
    #15
    Maybe somebody will correct me but it's my understanding that oversizing your time machine drive compared to your computer's hard drive is what's best.

    Time machine will make multiple versions of backups based on the dates for which you make changes. Therefore, a 10 meg file can be much larger when you look at the total hard drive space it demands after a you make a few revisions over time.

    Right now, I'm using my old 300GB drive as a backup for my 500GB internal drive. But soon, I will buy a 750GB or 1TB drive for backup and use my old drive for a multimedia external drive only.
     
  16. harcosparky macrumors 68020

    Joined:
    Jan 14, 2008
    #16
    If you have a 500GB internal and a 300GB external your total storage is 800GB. You would be wise and are right to understand that the Time Machine drive should be larger. A 750GB drive *might* be large enough but I would opt for the 1 TB.
     
  17. fivepoint thread starter macrumors 65816

    fivepoint

    Joined:
    Sep 28, 2007
    Location:
    IOWA
    #17
    This is assuming that the 500GB is full though, right? For example... I have a 750 internal, and just ordered my 750 external. Since my internal is only about 1/2 full though... the 750 external should be MORE than enough for now, right?
     
  18. fivepoint thread starter macrumors 65816

    fivepoint

    Joined:
    Sep 28, 2007
    Location:
    IOWA
    #18
    I really hope I didn't order the wrong external.
     
  19. basesloaded190 macrumors 68030

    basesloaded190

    Joined:
    Oct 16, 2007
    Location:
    Wisconsin
    #19
    you should be fine. sounds like you did your research and just didn't buy the cheapest one you could find. don't second guess yourself. if it isn't enough room you can always look to get another or larger one in the future when they are even cheaper than they are now:p
     
  20. JayLenochiniMac macrumors G5

    Joined:
    Nov 7, 2007
    Location:
    New Sanfrakota
    #20
    It'll be fine for now. Keep in mind that your external will top out before your internal, at which point you can start using the 750 external as a 2nd hard drive and order a 2 TB external to use as the Time Machine drive.
     
  21. bananaquit macrumors member

    Joined:
    Jan 27, 2007
    Location:
    Montana
    #21
    I'm looking at a 500GB OWC Mercury Elite. They specify the "standard mechanism" as a WD Caviar SE16. I guess "standard" doesn't guarantee anything. For TM backup is it really necessary to know more? I have also been considering a Seagate 7200.11 + enclosure, but suspect I am over-analyzing this purchase.
     
  22. Leon Kowalski macrumors 6502a

    Leon Kowalski

    Joined:
    Sep 20, 2007
    Location:
    Gondwanaland Reunification Front HQ
    #22
    Which specific numbers don't look right?


    No, Seagate says 105 MB/s (the uppercase 'B' indicates BYTES). They also specify
    1287 Mb/s (lowercase 'b' indicates bits ) but I don't know why I'd care about that).

    http://www.seagate.com/staticfiles/support/disc/manuals/desktop/Barracuda 7200.11/100452348b.pdf


    No, that's the spec for the 500GB WD5000AAKS. The spec for the 750GB
    WD7500AAKS is 98 MB/s.

    http://wdc.custhelp.com/cgi-bin/wdc.cfg/php/enduser/std_adp.php?p_faqid=1543&p_created=1180994587

    BTW, the 972 Mb/s spec is misleading/meaningless -- you can't translate
    to MB/s by simply dividing by eight. WD doesn't provide a MB/s spec for
    the 500GB AAKS drive -- but it's in the 80 MB/s ballpark.

    LK
     
  23. Flyer0815 macrumors 6502

    Joined:
    Dec 11, 2007
    Location:
    PA
    #23
    I am using a WD MyBook Pro 500 GB 7200. I noticed that it is actually quite loud. The spin-down sequences are far too loud.... I took the plunge and bought a 1 TB Time Capsule, and will shortly retire the WD.... I wasn't impressed.
     
  24. themoonisdown09 macrumors 601

    themoonisdown09

    Joined:
    Nov 19, 2007
    Location:
    Georgia, USA
    #24
    I use the WD MyBook 500 GB (I think it's 5200 rpm) that's both FW and USB. I also noticed that it is quite loud when it's running... a lot louder than my iMac.

    I have considered getting the Time Capsule, partly because I need a wireless router. I'll wait a couple of months and see what's up with it.
     
  25. bstreiff macrumors regular

    Joined:
    Feb 14, 2008
    Location:
    Austin, TX, USA
    #25
    I'm using the 80GB PATA HD out of my old, dead laptop (Sony Vaio S-150-- had a whole slew of motherboard issues), in a Macally PHR-250CC Firewire/USB2.0 enclosure. I figured going that route would be significantly cheaper than getting a larger hard drive for my Mac mini, and easier to install (already spent a couple hours putting 2x2GB in...)

    Plus I can run the drive off the Firewire port, so I don't need to have an extra power adapter powering the drive.

    The enclosure is pretty solidly built; the only problem I have with it is a *really* bright blue LED (Why do manufacturers do this!?). I actually want to try to get a broken Airport Express 802.11n (the ones with the same footprint as the mini) and fit the enclosure into it, but they're pretty hard to find (and I'd feel pretty bad tearing apart a working one).

    Anyway, I've got it partitioned into two-- there's a partition for TimeMachine, and an NTFS partition that I have extra Windows stuff on for the rare occasion that I boot into it.
     

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