How many external hd's do you keep connected?

Discussion in 'Mac Basics and Help' started by trojanmike34, Oct 26, 2007.

  1. trojanmike34 macrumors newbie

    Oct 16, 2007
    I'm going to pick up an iMac today and put my 6 year old PC in the closet! On my PC I always had two external hard-drives connected at once. I was thinking about consolidating them and leaving only one HD connected to the iMac (it contains all of my music and movies.) After reading more about Time Machine, I am considering leaving my storage drive connected and leaving on a dedicated Time Machine drive. Do you notice any performance decreased by having two drives connected at once? How many HDs do you leave connected 24/7?

  2. yg17 macrumors G5


    Aug 1, 2004
    St. Louis, MO
    I've got 2 drives connected....a Firewire drive that I store some files on, and an old USB drive I had laying around that I now have hooked up for Time Machine and it's fine. Haven't noticed any performance problems at all.
  3. blodwyn macrumors 65816

    Jul 28, 2004
    Portland, Oregon
    As the above poster said, you won't notice any performance hit. You may want to exclude them from Spotlight indexing in the Spotlight preference pane. If the drives spin down automatically when they're not in use, sometimes there's a delay while they spin up when you do certain operations like opening and saving files (I think). I've noticed mine do that sometimes although I've never bothered to narrow it down specifically to what operations cause it.
  4. Zawamura macrumors regular

    Jun 24, 2007
    Got a 7port usb hub to which I have connected 1 lacie 250gb disc and a 500gb Seagate one. Works fine. :)
  5. trojanmike34 thread starter macrumors newbie

    Oct 16, 2007
    Thanks for the responses. I'm assuming by unchecking "spotlight indexing" that my drives won't be included in spotlight searches? Not a biggy, as I know where everything is on those drives.

    One more quick question. I noticed i'm only given three USB connections on the mac, so I went and purchased a hub. Is there any downside to hooking the drives up thru the hub rather than a direct connection to the computer?

    Thanks again
  6. trojanmike34 thread starter macrumors newbie

    Oct 16, 2007
    Wow I just noticed your post. You must have written it while I was writing mine! :D
  7. Angrist macrumors 6502

    Mar 11, 2005
    MI or NJ
    I used to have 2-3 Firewire drives chained on my iMac .... never noticed a performance hit.
    Now I just backup across the network from machine to machine.
  8. teleromeo macrumors 65816


    Dec 2, 2006
    kidnapped by aliens
    I got 2 external USB drives hooked to my powerbook. Another one was send back to LaCie for repair after it crashed, I did not want to use it anymore after 100 gig of data disappeared. I use them to store data, photo's and a full backup of my data. When they get full I'll buy new drives and add them to my setup. From time to time I also use my iPod to have an additional backup of some crucial data.
  9. NoOneButMe macrumors regular

    Dec 10, 2006
    If i'm sitting down at my desk, 2. Then again, i only have 2 usb ports on my MBP.
  10. byakuya macrumors 6502a


    Jul 26, 2007
    I also have two drives connected constantly via my usb hub and a firewire HD (2,5) that I connect occasionally for backups and haven't notice any performance hits.

  11. trojanmike34 thread starter macrumors newbie

    Oct 16, 2007
    Looks like I'll be setting up a backup drive and a TM drive. Thanks again to all who responded.

Share This Page