How do i partition external hard drive using mac

how do i partition my external hard drive on mac? can i use it as time machine disk as well as external drive?

You can use an external disk for store files and for Time Machine, but you have to create a second volume.
To create volumes on the external disk, use Disk Utility. See > http://pondini.org/OSX/DU3.html I recommend you to put as much space as you can for the Time Machine volume, because backups consume a lot and Time Machine starts deleting backups when the external disk is full

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HT3764 How to reformat an external hard drive using Snow Lepard to use for Time Machine

How to reformat an external hard drive using Snow Lepard to use for Time Machine

Use the Disk Utility in the /Applications/Utilities/ folder to erase it as Mac OS Extended (Journaled) with GUID as the partition map format(or APM if you're using a PowerPC Mac running 10.5).
(73291)

Greeting, I want to reformat my external hard drive using Mac OS Extended (Journaled, Encrypted ) but before formatting it, I want to make sure that if I loose the hard drive or the hard drive get stolen, no one will be able to retrieve or recover the in

Greeting,
I want to reformat my external hard drive using Mac OS Extended (Journaled, Encrypted ) but before formatting it, I want to make sure that if I loose the hard drive or the hard drive get stolen, no one will be able to retrieve or recover the information on it so could you tell me what kind of encryption will be used or is there any way to recover the information?
Thanks!

I think FileVault is used to encryp internal hard drive but I wanna encrypt an external hard drive with Mac OS Extended Journaled Encrypted which is completely different!

Terminal - how to find my external hard drive using unix commands

just discovered terminal and using cd and ls commands, which are the only commands i know, i realized that i can't find my external hard drive. i thought it would be listed on my desktop, as it is in the OSX interface, but it isn't there.
not that im skilled enough to use terminal yet, but i thought the first step would be being able to navigate the computer's files.
really curious as to where my external hard drive is and how i can find it using unix commands in terminal.
i was trying to figure it out myself, then i thought surely someone knows this and could tell me in a sec.
thanks.
ibook Mac OS X (10.4.4)
ibook Mac OS X (10.4.4)

"ls /Volumes" will list all volumes, including internal and external hard drives and mounted disk images. I find "disktool -l" more useful in scripts, as it tells you which volume names correspond to which "mount points" under /Volumes. Usually they're the same, but if you have two volumes with the same name, or you try to remount a removable volume before it is fully unmounted, you'll end up with a mount point that consists of the volume name with a numerical suffix.

External Hard Drive using MAC and PC

I recently formatted my 250gb hard drive to MS-DOS (FAT32) so I can use the drive with Mac and PC. When I came to plug in my external hard drive in the other day with another mac PC it said I could only read only under get info.
Why is this?
I couldnt save only open documents
Many thanks

kevin_ wrote:
Henry,
You should format the external drive as exFAT rather than FAT32. exFAT handles larger files than FAT32 would and is both Mac and Windows friendly.
And when he does, he should do it connected to the PC. There have been reports that while the Mac can format a drive in exFAT, it doesn't do as compatible a job as a PC will.

Using Premier Pro CS5 can not set up an external hard drive using Mac osx 10.9.5

get an error message when I try to set up a scratch disk from an EXTERNAL hard drive 7200rpm .. using a Mac Book Pro OSX 10.9.5

Try posting in the MacBook Pro laptop forum. his is the Mac Pro desktop forum.

How to backup external hard drive to another external hard drive using time machine ?

Hello,
i have an external hard drive which i store all my drum samples and sound library on and files are contantly changing, adding new sounds, deleting old ones etc ..
So my method of back up as of now is to just copy all the edited files and click and drag to the back up disk.
Now, my question is, how do i back up my external hard drive to another external hard drive using time machine ? I read somewhere that you can do this, i cant find the post however. It would be nice to automate the back up process rather than manually finding the files to copy over.
Thanks in advance !

The question you pose is conditional, in that you should have more than an exact
capacity replacement for a clone, if the drive you are going from (or one going to)
has insufficient free space and that has a bootable clone on the drive; any space
tied up in a partition for Time Machine backup, takes away from the running space
if you should need to run the computer from a clone on the external HDD's other
partition.... Better to have a good capacity of additional reserve unused free space.
Be sure any clone copy that you hope to use as a re-close, that each in turn is tested
after a clone operation. Also consider using each running system's Disk utility and
have First Aid 'repair disk permissions'. Preparation of a new drive or even an old
drive that may have questionable artifacts or errors on it, should be reformatted. To
even go as far as Secure Erase (overwrite) at least one-pass before reformatting it
again, could help.
However, I'm not sure if the drives and situation you are looking at would necessarily
be a good match. It could work, but you'd need a reasonable size partition or hard
disk drive for a system. Snow Leopard and all its associated applications, can do
OK in a 100GB HDD. (My computers have more storage capacity than is used; so
for mine to have 60% free space, is good.) Virtual Memory is drive space used by
OS X, that can be a substantial amount for swap and temp files. Some applications
make duplicates of works-in-progress, for each change in an open file; that adds up.
{This question (& my reply) should've been in their own thread & not at the end
of one that is nearly three months old, + marked 'solved' by the original poster.}
So I guess I don't have a direct answer to your question; having just returned from
a few hundred miles and automobile issues, too. I'm not really thinking on-topic...
The clone should be on its own separate drive, and up to 3TB drive dedicated to
Time Machine may be overkill, however that software will consume old backups first
when it uses up all the space. Or usually that is what happens in TM backups. If
that isn't happening, there may an issue in how Time Machine is set up.
Good luck & happy computing!

Can a use a partitioned external hard drive to create a disk image? I tried, doesn't seem to work using disk manager.

Can a use a partitioned external hard drive to create a disk image? I tried, doesn't seem to work using disk manager.

OK, it's very bad computing to use a backup disk for anything but a backup. The reason being is if/when the HD crashes you will have lost not only all your backup but the data files. While I commend you for wanting redundant backup, you really need separate EHDs for doing so. Format each EHD using Disk Utility to Mac OS Extended (Journaled) using the GUID parttition. When you connect, OS X will ask if you want to use that drive as a Time Machine backup drive, select yes and then let it backup. On the second EHD format the same way however do not use TM as a backup, this time I'd suggest an app such as SuperDuper or Carbon Copy Cloner to make a clone of the internal HD. Leave both EHDs connected and TM will backup new or changed files automatically on a hourly basis. The clone you will need to set to backup on the schedule you want. For example I have my SuperDuper EHD set to backup only changed or updated files at 2AM every day.
The advantage of a clone is that if the computers internal HD crashes you can boot from a clone and continue working, TM will not do that but it's great for keeping an archive of all files. So if you want a version of a file from many months ago, TM will help you locate and restore it.

How do I restore a failed external hard drive using Time Machine?

I have an external hard drive connected to my iMac that is being backed up with Time Machine. I just realized that should it one day fail and no longer appear as a connected device, I'm not sure how to restore its data to another external drive. When I disconnected the external hard drive (to mimic a drive crash) and entered Time Machine to see if I could verify that the external hard drive was, in fact, being backed up - I didn't know where to find it. Under the Today (Now) information, I didn't expect to see it there as it was no longer connected to the machine. But when I went back a few days, I expected to see its backup appear in the Sidebar. But no!
So - how do I restore a failed external hard drive using Time Machine?
Searches for this information on Google yielded "iffy" results. I'm hoping someone here is able to offer some clear steps to follow. Perhaps I'm missing something silly. Thank you very much!

I came across this discussion after encountering the same problem. Since my internal HD was cose to full I added an additional external HD to my setup. I moved my iPhoto files to an external HD and backed both this external HD and my internal HD up with Time Machine to another external HD. So far the theory. When I wanted to test if this setup worked I noticed that I could only see my iPhoto libraries on the external HD in Time Machine when the external HD was connected to my computer, but not if I turned it off. This led me to search for a solution on the Apple Support Communities discussion board.
The suggestions made Kappy seem right, at least in my experience, in that my Time Machine simply did not back up the external HD until I followed the steps he suggested above. These were the following:
"So, if you want it backed up then here's what you need to do:
1. In Time Machine preferences remove the external drive from the Exclude list.
2. Verify that it is now included with your other drive in the backup list.
3. Do a Backup Now to create a new backup of the external drive."
After doing this, my external HD showed up in the Backups.backupd as a seperate folder. I could clearly see the Time Machine back-up for my internal HD and my external HD. In addition, in Time Machine itself I was able to find the external harddrive by clicking on my own computers name under "Devices". I hope my experience helps to resolve your issue as this discussion board has helped me resolve mine (which I believe to be very similar).
Cheers!

I back up with an external hard drive using time machine. I am trying to reload my iphoto library from an earlier date then it will let me. How do I get to an earlier date in time machine?

I back up with an external hard drive using time machine. I am trying to reload my iphoto library but it won't let me get back to a date that I need to. How do I do this?

Try Pondini's articles;
http://pondini.org/TM/15.html - scroll down to the pink box for iPhoto restoation.
Also http://pondini.org/TM/15A.html to clarify how to use the timeline.

How can I partition my external hard drive supporting mac OS in one partition and windows OS in another?

Hello everyone, how can I partition my external hard drive supporting mac OS in one partition and windows OS in another?

OK. Start with:
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to two (2). Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.
4. Click on the Erase tab in DU's main window. Select one of the two partitions, preferably the first one, change the Format type: to MSDOS then click on the Erase button.

How to backup an external hard drive plugged into a time capsule using time machine

How to backup an external hard drive plugged into a time capsule using time machine.
I want to move my itunes library from the mac HD to an external plugged into the time capsule, but I want to be sure this drive will still be backed up by time machine. I currentlly see no way to do this.

There is no way. You can connect the drive to your Mac and remove it from the Time Machine exclusion list. Then it will be backed up, but that will stop when you reconnect it to the TC. While it's connected to the TC, you can copy it manually to another AirPort Disk by following the instructions here (with a slight modification):
Using AirPort Utility to make a copy of the Time Capsule disk

How big should my external hard drive be for me to use Time Machine?

i am a student and dont have a significant amount of files and that on my computer so how big shuld my external hard drive be?
I will be using a normal external hard drive so will i be getting the full and the important features out of time machine if i do this?

There are two questions you should ask yourself:
1. How long will it take me to fill up my internal HDD?
2. How far back chronologically do I realistically expect to have go to retrieve data?
I submit that in the vast majority of cases, a HDD of the same size as you have in your MBP will be ample. If things change, adjustments can be made well in advance. Its the very rare user that will generate multi GBs of data and file changes every session.
As an example, I have a 750GB HDD in my MBP and a 750 HDD dedicated to Time Machine. The oldest backup goes back 7 months. At the rate that I update Time Machine, I expect the Disk to be filled and start deleting old data in about 3 months. For me, that is more than sufficient.
There is another aspect of backup strategy you should consider. I would highly reccomend that you have a second external drive to store your most important files that may be duplicates of those in Time Machine. All HDD will fail. You just never know when that will happen. If your Time machine disk expires, this way you are not left in a calamitious situation.
Though some of my views may be in the minority, the final decision is always yours.
Ciao.

I am looking to back up my MAC, and I need to know how big of an external hard drive I need

I am looking to back up my MAC, and I need to know how big of an external hard drive I need. How do I determine this?

Well, they recommend at least 2 - 3 times the size of your hard drive if you are using Time Machine because that keeps making backups until it runs out of space (and then deletes the oldest to make room for the newest).
However, if you prefer to have a bootable clone as a backup, you need about the same size as your hard drive since it is a perfect copy of your system (unless you want to partition and keep an older clone separately).
So, check to see how large your hard drive is and go from there.

New MacBook pro how do I add external hard drive which has my entire iTunes library on it. Do I just drag external drive icon into iTunes preference box that shows where new itunes library is now located ie. On the MacBook pro.

how do I add external hard drive which contains my entire iTunes library to new MacBook Pro. i want to keep iTunes library on external hard drive. But I want all my iTunes information: artist, songs, albums, playlists on my new MacBook Pro. I know about going to iTunes preferences- advanced-itunes media folder location. At this point I don't know what to do Do I drag external icon into iTunes media folder location box. I want to keep music files on external hard drive. I don't want to use macbook pro memory for my very large music files.

I will request that your query be relocated to the iPhoto forum where knowledgeable iPhoto users will be able to assist you.
Ciao.

How do i partition external hard drive using mac

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