External HD for Time Machine use?

What size external HD should I use to back up my MBP? I believe my hard drive is 320GB. Money IS an issue!

I have a 320GB Harddrive and you will be FINE with 500GB
http://www.amazon.com/Seagate-Expansion-Portable-External-ST905004EXA101-RK/dp/B 001UHWHO4/ref=sr_1_1?ie=UTF8&qid=1309311668&sr=8-1
http://www.amazon.com/Western-Digital-Passport-Essential-Portable/dp/B0041OSAZS/ ref=sr_1_2?ie=UTF8&qid=1309311668&sr=8-2

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"Hide" External Drive for Time Machine use only

Hi everyone,
I have an AirPort Extreme with 2 External Drives connected to it on wi-fi. One with 500GB I use for "File Server", so all computer in my network can store files on it. The other one, with 1T I use as Time Machine backup ONLY (over wi-fi).
It's all working perfectly. But when using a computer on the network, I was able to see that the Time Machine drive is 'visible' to be used as a 'file server' as well if the user wants to.
Is there any way I can 'hide' this external drive, so it can be seing only by Time Machine?
Maybe it's not possible but it is worth asking.
Regards!
Ricardo

rslora wrote:
Hi everyone,
I have an AirPort Extreme with 2 External Drives connected to it on wi-fi. . . .The other one, with 1T I use as Time Machine backup ONLY (over wi-fi).
It's all working perfectly.
That may not last. Backing-up that way is "iffy" and +*not supported by Apple.+* See Using Time Machine with an Airport Extreme Air Disk (or use the link in *User Tips* at the top of this forum). As it says, if you continue backing-up that way, strongly consider keeping secondary backups, if you don't already.

I've used an external drive for time machine which has important files on it. After trying to back up my computer, it suddenly needed to be "repaired" by utilities. Now it's not being "seen" at all! How do I recover my important files off the drive?

I've used an external drive for time machine which has important files on it. After trying to back up my computer, it suddenly needed to be "repaired" by utilities. Now it's not being "seen" at all! How do I recover my important files off the drive?

If the external drive can be seen at all in Disk Utility, follow the instructions for repair here.

My 320GB external drive for Time Machine now only has enough capacity to keep a backup of one day. All my other backups are gone. What can I do to fix this situation?

I've been using a 320GB external drive for time machine for the last several years. The backups always worked fine and when necessary I was able to look at & restore older data from the time capsule. Recently, I keep getting the message that a backup cannot be completed and an older backup will be deleted. Usually this wasn't an issue because I still had several months of information on disk. Now a one-time backup takes up 315GB and therefore I only have a backup of the previous day. I don't understand this because I thought that the backup only saves information that has changed and doesn't copy everything everytime. What do I need to do to get my backups to a reasonable size so that I can keep at least 1 month data stored on it.? Please don't tell me I need a larger drive ... that would be too easy.

Get a larger drive for your TM backups.
The recommended size is 3 times what you are backup. So if 315 GB is a backup then you need a 1 TB drive.
Allan

HT3275 New macbook, old external drive for time machine

I got a new macbook pro a few weeks ago and set it up using my last backup from time machine. I want to use the same external drive for backups but there is no room. Can I delete all of the old files from the old computer or do I need to keep them?

kat.hayes wrote:
I want to use a 3 TB external drive for Time Machine to backup multiple 500GB hard drives in my Macpro. I have lots of large video files from HD cameras.
1. Will Time Machine backup all of the hard drives in the Macpro?
As long as they're formatted HFS+, yes. Be sure there's enough room, though -- Time Machine needs considerably more room than the data it's backing-up. See #1 in Time Machine - Frequently Asked Questions.

External drive for Time Machine

I want to use a 3 TB external drive for Time Machine to backup multiple 500GB hard drives in my Macpro. I have lots of large video files from HD cameras.
1. Will Time Machine backup all of the hard drives in the Macpro?
2. What is a good external hard drive to handles these types of files?
Thanks.

kat.hayes wrote:
I want to use a 3 TB external drive for Time Machine to backup multiple 500GB hard drives in my Macpro. I have lots of large video files from HD cameras.
1. Will Time Machine backup all of the hard drives in the Macpro?
As long as they're formatted HFS+, yes. Be sure there's enough room, though -- Time Machine needs considerably more room than the data it's backing-up. See #1 in Time Machine - Frequently Asked Questions.

Looking at external HD for Time machine backup and for XP OS?

Bought a 24" iMac desktop with a 500 GB HD and am going to be running up to Best Buy to snag a Western Digital external My Book 750 GB HD. Mainly this external is for Time Machine backup, photos, iTunes library, etc. but I'd like to fire up boot camp and install Windows XP OS. Question is, can I install the XP OS on the external HD so I don't have to divide and possibly mess up my internal Mac HD? Also, when I do install XP OS, how much space for a partition? XP will be mainly for just a few PC games that are PC only like Company of Heroes.

Hi Saius,
yeah, the more the better...
BootCamp requires the use of XP with SP2. Without SP2 (SP1 or earlier) it either does not install or if installed can produce some odd errors.
If you have access to a Windows XP PC you can try these instructions to slipstream the SP2 together with your 'old' XP CD to a new XP SP2 CD.
http://www.winsupersite.com/showcase/windowsxpsp2slipstream.asp
Before spending some unneccessary dollars might be worth trying.
It's not very difficult to do this (done it myself some years back).
Also it is a good idea to use your external HD and make a bootable clone of your OSX volume using either SuperDuper or Carbon Copy Cloner.
That way in case something goes wrong, you can easily revert back.
Personally I would not use Time Machine for that task.
Have Fun and thanks for the star.
Stefan

Adding a Dedicated External Drive for Time Machine

Hello,
I want to use a dedicated external drive for Time Machine backup and another drive for a SuperDuper backup. Before even adding another drive, I'm already pulling and replacing usb connections from the back of my computer.
Can anyone tell me if a splitter is a workable solution? Something like this:
7-Port USB High-speed Hub with Splitter Cable -- http://www.shop4tech.com/user.htm?go=view_item&id=8997&r=183 -- or perhaps other recommendations ..
Thanks.

...I recall reading that USB 2 was faster ... but I think they said faster than FW 400, but the drive I have is FW 800.
USB2 is 480mbps and Firewire400 is 400mbps. On paper, this would appear that USB2 is faster than Firewire400. But USB2 cannot handle large data transfers very effectively. I can't explain the technicals, but suffice to say that the figures I gave of 40min-versus-2-hours-for-25GB is typical of Firewire400 versus USB2.
Firewire800 is 800mbps, so would potentially be even faster. However the physical hard drive that's installed in the Firewire enclosure would be the bottleneck as a normal "platter" hard drive is much slower than Firewire400 or 800. If it were an SSD drive, then you'd likely see a very significant difference.
But regardless, USB2 cannot keep up with a large data stream like Firewire can. Potentially USB3, which is up to 5Gbps, would be faster than either Firewire 400 or 800, although I suspect would be on par with Firewire3200 in the real world. However since there are no adapters for either USB3 or Firewire3200 for the Mac, it's a moot point for now. (Your drive is not USB3, there are only a few USB3 drives available, and you'd need a Mac Pro to add the adapter in anyway, if they existed.)
So are you saying that FW 800 is faster than USB 2.0 -- and that I should be using the FW connection to get better throughput? And that I can resume daisy-chaining multiple external drives through the one port?
Definitely Firewire would be faster than USB. And I have 5 external hard drives daisy-chained through a single Firewire800 port on my Mac. So daisy-chained Firewire is the way to go.
Like I said, for the small, incremental, hourly Time Machine backups, the speed difference is insignificant. But when the day comes that you have to restore your hard drive, (i.e.: hard drive dead so you buy new blank hard drive. Or you just want to replace with a larger drive,) if say your Time Machine backup is 80GB, that restore would probably take several hours over USB2. On my Firewire400 drive, my 100GB Time Machine restore of my Macbook Pro took about an hour and a half. (The data transfer was about an hour, but OSX took awhile after that to finish up the restore.) YMMV, of course, but IMHO, use Firewire over USB2 as much as possible. If you're lucky enough to have a Mac Pro or iMac and can use multiple internal hard drives or eSATA, then that would be even faster than Firewire800. Only owners of a Macbook Air or non-Firewire Macbook should resign themselves to USB2.

I used a partitioned HDD for time machine, using a partition already containing other data files. I am now no longer able to view that partition in Finder. Disk Utility shows it in grey and "not mounted". Any suggestions of how to access the files?

I used a partitioned HDD for time machine, using a partition already containing other data files. I am now no longer able to view that partition in Finder. Disk Utility shows it in grey and "not mounted". Any suggestions of how to access the files? Does using time machine mean that that partition is no longer able to be used as it used to be?
HDD is a Toshiba 1TB, partitioned into two 500GB partitions.
OS X version 10.9.2

Yes, sharing a TM disk is a bad idea, and disks are cheap enough so that you don't need to.
Now
Have you tried to repair the disk yet

Brand new iMac 23.GHz Intel Core i5. Mounts external drive for time machine, then dismounts after backup is complete.

brand new iMac 23.GHz Intel Core i5. Mounts external drive for time machine, then dismounts after backup is complete.

The warranty entitles you to complimentary phone support for the first 90 days of ownership.
If you bought the product in the U.S. directly from Apple (not from a reseller), you have 14 days from the date of delivery in which to exchange or return it for a refund. In other countries, the return policy may be different. If you bought from a reseller, its return policy applies.

Can´t upgrade to mountain Lion because says that my HD is only for Time Machine use

Can´t upgrade to mountain Lion because says that my HD is only for Time Machine use, what can I do?

The installer is probably finding a file called backups.backupdb
That is where Time Machine stores it backups so it figures it can't install there
The Time Machine backup should never be done to the system drive but another drive instead
Allan

Can I use the same external hd for time machine and storage without partitioning it?

Hello,
I have been using an external hard drive for my Time Machine that was only used for this purpose.
I downloaded some files in it that I want to use, and I haven't backed up using Time Machine since.
Can I download the files on my MacBook from the HD without running into any problems, or is there anything else I should do?
I prefer not to partition the hd, since I will be deleting these files, or transferring them to a different HD, and using this HD only for Time Machine back ups, as I did previously.
** I am not sure if this changes anything, but I just updated from Snow Leopard to Lion.
Thank you so much

carolsm wrote:
Thanks Kappy, I will do that.
I just really needed these files and had no other hard drive to store them.
Do you think that it will be okay just this one time if I download the files on my MacBook without compromising my backups?
I will transfer them to a new hard drive, and erase them from my Time Machine external hard drive.
For the time being it will be fine. There is always a chance of a disc crashing and therefore not advisable practice. Some here run seperate drives with Time Machine, Cloned backup and file backup. I have a portable drive I keep Time Machine backups and file backups on. I am running that at my own risk, but no problems over the last couple of years. Just make sure I get it to my normal TM Backup disk as soon as I get home. Backing up those other files will not compromise your Time Machine backups as you asked.
Cheers
Pete

Can I use an external drive for Time Machine and storing other data?

At the moment I have one external drive, a 500gb LaCie. My internal drive is 160gb. I don't think I'll be using all 500 of those gigabytes for a while, so I want to put them to good use. Can I make a partition on this drive and use that for Time Machine, leaving the rest of the drive for my documents and other files? If so, how would I partition the drive? I'm not fluent in Disk Utility and even though I'm pretty sure I know how to do it, I don't want to screw up. Also, how big a partition would you recommend?
While we're here, I have a second question, somewhat relevant to the first. Could I move my Time Machine backups to a second drive if I wanted to? Also, if I used a big drive (say 1tb) could I use Time Machine to backup my current LaCie to a partition on that drive? Thanks in advance.

videoCWK wrote:
Does that also mean that I could back them both up on a very big drive?
Yes. Time Machine will, by default, back up all of your external drives unless you specifically exclude them.
Also, will Time Machine backups eat all my space after a lot of usage?
It depends on what you do on your Mac. If you work often with very large files (video editing, heavy photo editing, big disk images, Microsoft Entourage data file, Parallels disk image file, etc) then your backup drive could fill up very quickly.
I use my Mac mostly for e-mail, web browsing, iTunes, iPhoto, and the occasional iMovie project. I have 92 GB on my main hard drive (60 GB of which are my iTunes and iPhoto libraries, and one iMovie project.) My Time Machine backups consume 155GB on my backup drive, and that's after using Time Machine for a full year.

Using an External Drive for Time Machine and Other Things

I have a 2TB external drive which I use for Time Machine Backups on my 2 macs. The macs have HDs of 500GB and 160GB so the external drive has ample space for backups.
Is it okay to use the external drive for other things that I don't care if they aren't backed up (like digital copies of DVDs)? i.e. Will Time Machine cause any issues if a drive is used for more than just Time Machine backups?

rgraves wrote:
I have a 2TB external drive which I use for Time Machine Backups on my 2 macs. The macs have HDs of 500GB and 160GB so the external drive has ample space for backups.
Maybe. See #1 in [Time Machine - Frequently Asked Questions|http://web.me.com/pondini/Time_Machine/FAQ.html] (or use the link in *User Tips* at the top of this forum).
Is it okay to use the external drive for other things that I don't care if they aren't backed up (like digital copies of DVDs)? i.e. Will Time Machine cause any issues if a drive is used for more than just Time Machine backups?
It's best to put such things in their own partition. See #3 in the FAQ.
You may also want to make separate partitions for each Mac's backups, if you're backing-up either one directly (ie, not over your network). See #4 in the FAQ.

Has Anyone Used the WD My Book External Drives for Time Machine?

I'm thinking of getting the Western Digitial 1 or 2 TB My Book (Pro Edition 2 or Studio Edition) External Drives for use with 2 MacPros. Has anyone used these and could I use them with Time Machine? Would I have to reformat them for Time Machine?
Thanks!
Ashley

You may, and probably want to format them, even if not TM use, I would anyway. Not everyone is happy with MyBook Pro and TM.
I buy bare FW devices and add disk drive of choice, or just use OWC
http://www.macsales.com/firewire and works well.
FW800 is also better on the new Mac Pro
http://www.barefeats.com

External HD for Time Machine use?

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