Slow transfer rate between external hard disk and TC

Hi all,
Yesterday I installed a new 1TB TC and attached to it an external LaCie 500 GB HD and a printer (HP 3325) via a USB hub to it. The thing is that although the transfer from the LaCie to my Mac is smooth via wifi, I can't say the same about the data transfer rate between my LaCie and the TC. Whilst they are connceted via USB, it seems that the speed is just half that from the LaCie to my Mac.
Any of you have faced the same problem or know why that is happening?
Thanks in advance,
Ramon M.

Ramon, Welcome to the discussion area!
You have to remember that the data is not simply going through the USB port from the hard drive to the Time Capsule.
The data is actually going from the hard drive to your Mac (through the Time Capsule) and then from your Mac to the Time Capsule. Therefore it is causing twice as much traffic as a simple transfer between your Mac and the Time Capsule.

Similar Messages

I have transfered all my library on an external hard disk and lost the itunes library files.

I transfered all my library on an external hard disk and lost the itunes library files. Itunes created new ones but I lost all the playlists.
How can I copy the playlists presents on the Iphone directly on Itunes ?
If I want to syncronise now, I lost all playlists datas.

Hi,
I did the same XP to Windows 7 upgrade about 18 months ago. I decided to keep iTunes permanently on the external drive than the c drive to save c: drive space.
ITunes database has pointers to MP3 files located in Artist's directories. If you want to use a different location than the default C:\ drive for iTunes, then you need to recreate the Itunes database by deleting all songs in iTunes, then change the default location for iTunes files to your external drive. Then import the MP3 files from the external drive into the empty iTunes database through the iTunes import facility.
If you screw up the timing of the import and find you have multiple iTunes directories (instead of just the default location), then iTunes has a new feature to consolidate all iTunes MP3 files back into the central default location. In iTunes, FILE, LIBRARY, ORGANIZE LIBRARY, then CONSOLIDATE FILES.
To change the default directory for MP3 files, in Tunes go to EDIT, PREFERENCES, ADVANCED and then CHANGE the location to where you want the Itunes MP3 files to be located (including the iTunes subdirectory under which all the artist directories are held. Mine are on the F: drive or whatever your computer states is your drive assignment for the external drive.
Note iTunes 10.5 has many problems that Apple hopefully are working on....we seem to have gone backwards on working components in this iCloud based release. So maybe keep on using old computer until 10.6 is released.
Enjoy
Steve Mc (Sydney AUSTRALIA)

Slow Transfer Rate Between iTunes and iPhone 3GS

Hi,
My iTunes recently failed to recognise my iPhone 3GS and suggested a restore followed by a back up.
I followed the steps and after a short while it started to transfer from iTunes library back onto my iPhone. However, the rate of song transfer appears to be very slow. 3,000 songs in 10 hours, there is still 1,800 to go.
Is there anything I can check to speed to process up, I don't remember it being this slow when I first got the iPhone?
Thanks

I'm having the same problem with very slow transfer and it's even more mystifying.
I got a 3GS a while ago and always very impressed by its transfer rates (300mb video file syncs in about 30 seconds). My partner also got a 3GS last week, but I noticed when setting it up that it was very slow (did some tests - the same 300mb file takes about 6 minutes to transfer). Since I was syncing to the same itunes library, on the same computer, using the same cables, I assumed it was something wrong with the new phone. Tried restore couple of times but no change, so I took it to the local genius bar who checked it, couldn't find anything wrong with it and swapped it out.
The only thing they suggested that I hadn't tried was reinstall iTunes - never occurred to me as my original phone still syncs at normal speed. So I've now reinstalled iTunes, (having deleted the new phone's backups) plugged in the new phone and asked it to sync using my original (fast phone) back up, but it still runs at the slow transfer rate even though this is a new phone! Tried restore again and still no change.
This is very frustrating. My original phone still syncs very fast. Getting the phone swapped means that it is unlikely to be a hardware fault with the new phone but it seems no matter what I do (delete the new phone's backups, sync to my normal phone's backup, install as a new phone, reinstall itunes) it still transfers at about 1/12 the speed of my original.
I'm completely stumped and would welcome any suggestions as to what I could try next.

How to move huge HD video files between external hard drives and defrag ext drive?

I have huge high definition video files on a 2TB external hard drive (and its clone). The external hard drive is maxed out. I would like to move many of the video files to a new 3TB external hard drive (G-drive, and a clone) and leave a sub-group of video files (1+ TB) on the original external hard drive (and its clone).
I am copying files from original external drive ("ext drive A") to new external drive ("ext drive B") via Carbon Copy Cloner (selecting iMovie event by event that I want to transfer). Just a note: I do not know how to partition or make bootable drives, I see suggestions with these steps in them.
My questions:
1.) I assume this transfer of files will create extreme fragmentation on drive A. Should I reformat/re-initialize ext drive A after moving the files I want? If so, how best to do this? Do I use "Erase" within Disk Utilities? Do I need to do anything else before transfering files back onto ext drive A from its clone?
2.) Do I also need to defrag if I reformat ext drive A? Do I defrag instead of or in addition to reformating? If so, how to do this? I've read on these forums so many warnings and heard too many stories of this going awry. Which 3rd party software to use?
Thank you in advance for any suggestions, tips, advice. This whole process makes me SO nervous.

Here is a very good writeup on de-fragging in the OS environment that I borrowed
From Klaus1:
Defragmentation in OS X:
http://support.apple.com/kb/HT1375 which states:
You probably won't need to optimize at all if you use Mac OS X. Here's why:
Hard disk capacity is generally much greater now than a few years ago. With more free space available, the file system doesn't need to fill up every "nook and cranny." Mac OS Extended formatting (HFS Plus) avoids reusing space from deleted files as much as possible, to avoid prematurely filling small areas of recently-freed space.
Mac OS X 10.2 and later includes delayed allocation for Mac OS X Extended-formatted volumes. This allows a number of small allocations to be combined into a single large allocation in one area of the disk.
Fragmentation was often caused by continually appending data to existing files, especially with resource forks. With faster hard drives and better caching, as well as the new application packaging format, many applications simply rewrite the entire file each time. Mac OS X 10.3 onwards can also automatically defragment such slow-growing files. This process is sometimes known as "Hot-File-Adaptive-Clustering."
Aggressive read-ahead and write-behind caching means that minor fragmentation has less effect on perceived system performance.
Whilst 'defragging' OS X is rarely necessary, Rod Hagen has produced this excellent analysis of the situation which is worth reading:
Most users, as long as they leave plenty of free space available , and don't work regularly in situations where very large files are written and rewritten, are unlikely to notice the effects of fragmentation on either their files or on the drives free space much.
As the drive fills the situations becomes progressively more significant, however.
Some people will tell you that "OSX defrags your files anyway". This is only partly true. It defrags files that are less than 20 MB in size. It doesn't defrag larger files and it doesn't defrag the free space on the drive. In fact the method it uses to defrag the smaller files actually increases the extent of free space fragmentation. Eventually, in fact, once the largest free space fragments are down to less than 20 MB (not uncommon on a drive that has , say only 10% free space left) it begins to give up trying to defrag altogether. Despite this, the system copes very well without defragging as long as you have plenty of room.
Again, this doesn't matter much when the drive is half empty or better, but it does when it gets fullish, and it does especially when it gets fullish if you are regularly dealing with large files , like video or serious audio stuff.
If you look through this discussion board you will see quite a few complaints from people who find that their drive gets "slow". Often you will see that say that "still have 10 or 20 gigs free" or the like. On modern large drives by this stage they are usually in fact down to the point where the internal defragmentation routines can no longer operate , where their drives are working like navvies to keep up with finding space for any larger files, together with room for "scratch files", virtual memory, directories etc etc etc. Such users are operating in a zone where they put a lot more stress on their drives as a result, often start complaining of increased "heat", etc etc. Most obviously, though, the computer slows down to a speed not much better than that of molasses. Eventually the directories and other related files may collapse altogether and they find themselves with a next to unrecoverable disk problems.
By this time, of course, defragging itself has already become just about impossible. The amount of work required to shift the data into contiguous blocks is immense, puts additional stress on the drive, takes forever, etc etc. The extent of fragmentation of free space at this stage can be simply staggering, and any large files you subsequently write are likely to be divided into many , many tens of thousands of fragments scattered across the drive. Not only this, but things like the "extents files", which record where all the bits are located, will begin to grow astronomically as a result, putting even more pressure on your already stressed drive, and increasing the risk of major failures.
Ultimately this adds up to a situation where you can identify maybe three "phases" of mac life when it comes to the need for defragmentation.
In the "first phase" (with your drive less than half full), it doesn't matter much at all - probably not enough to even make it worth doing.
In the "second phase" (between , say 50% free space and 20% free space remaining) it becomes progressively more useful, but , depending on the use you put your computer to you won't see much difference at the higher levels of free space unless you are serious video buff who needs to keep their drives operating as efficiently and fast as possible - chances are they will be using fast external drives over FW800 or eSata to compliment their internal HD anyway.
At the lower end though (when boot drives get down around the 20% mark on , say, a 250 or 500 Gig drive) I certainly begin to see an impact on performance and stability when working with large image files, mapping software, and the like, especially those which rely on the use of their own "scratch" files, and especially in situations where I am using multiple applications simultaneously, if I haven't defragmented the drive for a while. For me, defragmenting (I use iDefrag too - it is the only third party app I trust for this after seeing people with problems using TechToolPro and Drive Genius for such things) gives a substantial performance boost in this sort of situation and improves operational stability. I usually try to get in first these days and defrag more regularly (about once a month) when the drive is down to 30% free space or lower.
Between 20% and 10% free space is a bit of a "doubtful region". Most people will still be able to defrag successfully in this sort of area, though the time taken and the risks associated increase as the free space declines. My own advice to people in this sort of area is that they start choosing their new , bigger HD, because they obviously are going to need one very soon, and try to "clear the decks" so that they maintain that 20% free buffer until they do. Defragging regularly (perhaps even once a fortnight) will actually benefit them substantially during this "phase", but maybe doing so will lull them into a false sense of security and keep them from seriously recognising that they need to be moving to a bigger HD!
Once they are down to that last ten per cent of free space, though, they are treading on glass. Free space fragmentation at least will already be a serious issue on their computers but if they try to defrag with a utility without first making substantially more space available then they may find it runs into problems or is so slow that they give up half way through and do the damage themselves, especially if they are using one of the less "forgiving" utilities!
In this case I think the best way to proceed is to clone the internal drive to a larger external with SuperDuper, replace the internal drive with a larger one and then clone back to it. No-one down to the last ten percent of their drive really has enough room to move. Defragging it will certainly speed it up, and may even save them from major problems briefly, but we all know that before too long they are going to be in the same situation again. Better to deal with the matter properly and replace the drive with something more akin to their real needs once this point is reached. Heck, big HDs are as cheap as chips these days! It is mad to struggle on with sluggish performance, instability, and the possible risk of losing the lot, in such a situation.

I am using Windows 8.1 i have an External Hard Disk and one drive is now inaccessible due to sudden power failure few days ago. Now it shows "Data error (Cyclic redundancy check)". I want all my important files and Pics. How ?

Hi,
I am using Windows 8.1
I have an External Hard Disk i have partitioned it to 4 parts.
One drive is now inaccessible due to sudden power failure while listening Music from that drive few days ago.
Now it shows "Data error (Cyclic redundancy check)".
I tried all the procedures provided here like
chkdsk /f, diskpart, rescan etc
but no result :( (i mean all processes failed. They could not detect the drive).
Please help me to get those data, pictures and project files.
thank you

Then why aren't you posting this in the Windows 8 forums found @
http://social.technet.microsoft.com/Forums/windows/en-US/home?category=w8itpro
This is a Windows 7 forum for discussion about Windows 7.
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. ”

Should I boot from external hard disk and how do I achieve this?

I'm in a downward spiral and need advice about if booting off of an external hard disc is the right thing to do and how to go about it. How I got into this mess I'll write below. My immediate problem is that I want to be able to install a copy of osx 10.5 from the original disks that came with my computer onto a usb hard drive. Then I want to boot from that drive and install software such as disk warrior on the same external hard drive in order to repair and recover the files on my internal hard disk. Not sure if this is easy to do with the install disk that came boxed with my macbook. So is what I want to do feasible and how do I do it? Thanks.
How did I get into this mess?
For those with time to read more. A downward spiral (and my macbook was working fine)::
I have been backing up my work documents onto a 20 GB pendrive waiting to get the money to buy an nas to work with time machine for the two macbooks we have at home as a place to backup photos and video. I bought a network drive but it wouldn't work with my macbook; my time machine backup freezing at 3 gb, but works fine with wife's macbook pro.
I tried to do TM backup on a usb hard disk and got the same problem. Support forums indicated that hard disk problems could confuse TM, so although I was experiencing problem free computing I ran disk utility from internal osx. This indicated an <invalid node structure - file system verify or repair failed> at the checking catalog file stage. So I followed instructions to run disk utility and repair from the installation disk. When I ran disk utility from installation disk I get exactly the same <invalid node structure - file system verify or repair failed>. It gets worse.
After failing with install disk utility, I could not then boot from my hard disk (I had had trouble free computing up to my attempts to use TM) or eject the disk. At first attempt I had no option but to boot from dvd again as hd not offered as an option. Second attempt hd option available but fails. By reading advice given to others I managed to eject the dvd and have tried:
safe boot - it won't
boot in verbose mode and single user (indicates I have disk0s2:I/O error) and won't boot
try to use disk utility from install disk to create disk image on external hd, it won't (cites i/o error)
If I can boot from an external I will try to repair with Disk Warrior as forums indicate that this software has been able to solve <invalid node structure> issues (but am open to recommendations of other products). I also hope that I may be able to try again to burn a disk image sucessfully if this repair works. I'm still trying to save my photos and videos that aren't backed up.
I plan to try an archive and install installation but first I want to try a repair with disk warrior as I fear that archive and install won't work and I'll end up having to erase and repair my hard disk.
I feel like some perverse god is punishing me for trying to do the right thing and back up my hard disk.
Macbook 5.1 late 2008
Intel Core 2 Duo
OSX Leopard 10.5.8
85 GB of a 150GB hard disk needs backing up (saving)

I am not sure about this, but my memory is that if you try to partition the drive (in OS 10.5.8) it will erase the data.
But you can try. Go through the Add a partition steps, but watch for any warnings. If my memory is correct there will be a message to the effect that everything will be erased. If you see that, do not proceed. This page has info about how to do it, if it can be done: http://www.macworld.com/article/1164643/live_partition.html
With respect to DW on an external, I do that. I have a 80 GB external - I call it Emergency - with an OS, DW and TechTool Pro on it. (Since I have is a recovery partition built in with all new OS, Emergency would be of use only if I need to run DW or TTP.) I have never yet had to use it, but it's there. It is not usually connected - I just did that for this screen shot.

Problem with Lightroom 5: how to connect the app with my original pictures which are on a external hard disk and, once this resolved, how to create virtual pictures

A friend has installed Lightroom 5 on my MacBook air. he transferred all my picture that were on my IPhone an on Iphoto on Lightroom but without making virtual copies systematically. He put the original (real?) pictures on a external hard disk under Data_photos folder to allow more memory space on my Mac book Air. My problem now that when I connect the external hard disk with my computer the connexion does not happen automatically. it is like if Lightromm does not recognize the path to get connected to the original/real picture and therefore I cannot see pictures with all their potential and I cannot work on these. I am stuck! What should I do to 1) create this link? 2) create then virtual copies in order to be able to work on my computer without been obliged to connect my external hard disk to be able to use the application Lightroom. The friend who helped me disappeared! He is not in Japan and unable to help me.I hope you can help me. I have been looking for support to apple stores, photo shops, computer specialists but I have not found the expert capable to help me. I am leaving in Geneva. And believe that I should have some one with me physically to resolve a problem which I believe is not a serious one if one knows lghtroom an dinformatic basics... thank in advance to come back to me asap !!!!

Follow these instructions: Adobe Lightroom - Find moved or missing files and folders

Very slow transfer speeds with external hard drives through Firewire and US

Hi All,
My external drives transfer very slowly on my MacPro. I've been searching for answers and have turned up very little. Apple support suggested I post my issue here. Just to make a note, I measured my disk speeds with both AJA System Test and copying files between drives and reading the Disk Activity in Activity Monitor.
I have 3 external drives, all MyBook Premium or Professional, 1x 500GB, 1x 1TB and 2x 1TB in RAID 0. I had them on Firewire 400 and the RAID 0 2TB one on Firewire 800. My transfers on FW were all around 24MB/sec on all drives (much less than what I should be getting with FW400). I then read somewhere that the FW bus on the MacPro uses the slowest speed connected for all FW connections. So I unplugged everything but the FW800 Raid 0 drive and my transfer rate jumped to 40-60MB/sec. This is much better, but still about half or so of what I expect it should be producing from an external RAID 0 setup.
To keep my FW800 backup drive faster, I've plugged the other two into USB2.0. The transfer speeds on both drives are now hideous, around 10-15MB/sec. This is so slow, but I'm not sure what to try to fix my speeds.
The HD's in the external drives are all 7200rpm, and all should be transferring at a higher rate. Do you have any suggestions or ideas? Ideally I'd like to get everything transferring at rates they should be transferring at, but I'll settle with my current FW800 speed of 40-60MB/sec if I can get my other two drives transferring at a non-snail pace.
Is this a common issue? I can't believe I'm the only one plugging multiple external hard drives into their Mac Pro. I hope someone has a fix or solution for this. I'm all ears!
Thanks in advance.

Hi Kappy, thanks for the information.
So I rejigged my setup a tad. My RAID 0 is still FW800, the second drive is back on FW400 on the back port, and the third is USB 2.0 on the back as well.
It's interesting to note that I saw the FW800 taking a bandwidth hit if the FW400 drives was being read/written to. For example, if I was averaging 50-60MB/sec on the FW800 drives and copy something large to the FW400 drive, each drive averages out to about 30/MB second, roughly half the FW800 speed I was getting. The USB while the slowest didn't cause any slowness on the FW drives.
Here are my Xbench results. These results are from each drive being benchmarked individually with no other drives being tested at the same time.
*MyBook 2TB in a RAID 0 configuration: Firewire 800*
Results 75.42
System Info
Xbench Version 1.3
System Version 10.5.5 (9F33)
Physical RAM 16384 MB
Model MacPro3,1
Drive Type WD My Book
Disk Test 75.42
Sequential 80.92
Uncached Write 69.16 42.46 MB/sec [4K blocks]
Uncached Write 110.79 62.68 MB/sec [256K blocks]
Uncached Read 53.66 15.70 MB/sec [4K blocks]
Uncached Read 136.76 68.73 MB/sec [256K blocks]
Random 70.62
Uncached Write 36.38 3.85 MB/sec [4K blocks]
Uncached Write 140.55 45.00 MB/sec [256K blocks]
Uncached Read 93.26 0.66 MB/sec [4K blocks]
Uncached Read 88.38 16.40 MB/sec [256K blocks]
*MyBook 1TB on Firewire 400*
Results 47.73
System Info
Xbench Version 1.3
System Version 10.5.5 (9F33)
Physical RAM 16384 MB
Model MacPro3,1
Drive Type WD My Book
Disk Test 47.73
Sequential 52.47
Uncached Write 48.45 29.74 MB/sec [4K blocks]
Uncached Write 53.76 30.42 MB/sec [256K blocks]
Uncached Read 43.69 12.79 MB/sec [4K blocks]
Uncached Read 70.91 35.64 MB/sec [256K blocks]
Random 43.78
Uncached Write 17.29 1.83 MB/sec [4K blocks]
Uncached Write 98.83 31.64 MB/sec [256K blocks]
Uncached Read 76.33 0.54 MB/sec [4K blocks]
Uncached Read 97.01 18.00 MB/sec [256K blocks]
*MyBook 500GB on USB 2.0*
Results 40.60
System Info
Xbench Version 1.3
System Version 10.5.5 (9F33)
Physical RAM 16384 MB
Model MacPro3,1
Drive Type WD 5000AA External
Disk Test 40.60
Sequential 35.99
Uncached Write 37.31 22.91 MB/sec [4K blocks]
Uncached Write 37.22 21.06 MB/sec [256K blocks]
Uncached Read 26.62 7.79 MB/sec [4K blocks]
Uncached Read 50.27 25.27 MB/sec [256K blocks]
Random 46.55
Uncached Write 20.37 2.16 MB/sec [4K blocks]
Uncached Write 68.44 21.91 MB/sec [256K blocks]
Uncached Read 93.55 0.66 MB/sec [4K blocks]
Uncached Read 86.71 16.09 MB/sec [256K blocks]
So Kappy are you saying that those speeds look normal?
Thanks

Slow transfer rate between wired computer

im using WRT54G.
the problem is when im transferring data between my wired PC,
the transfer rate is capped to 10MB/s,
while im quiet sure that both of my ethrenet adapter is able to transfer up to 100MB/s
im using firmware v7.00.4
and both of my PC is using DUMeter so that i know the pure transfer rate..
thanx

I assume you are transferring the data by wire, through the WRT54G's built in 4 port LAN switch -- is that correct?
The WRT54G has a built in 100 Mbps (Megabits per second) switch. There are 8 bits in a byte. Typically a 100 Mbps switch can transfer data at speeds up to about 92 Mbps = about 11 MBps (Megabytes per second). This is about the same speed that you reported. So it sounds like your router is working correctly.
If you need a faster transfer of wired data, you will need a gigabit switch. Some Linksys routers have built in gigabit switches. Alternatively, you can purchase a separate gigabit switch, such as the SD2008, and use a setup like this:
modem - WRT54G - SD2008 - computer 1
- computer 2
When you have a setup like this, and you transfer data from one computer to the other, the data will only flow through the SD2008 gigabit switch, not through the WRT54G. So, assuming your computers have gigabit ethernet cards, you can use your gigabit network to transfer the data. Although a gigabit network allows you to connect at 1000 Mbps, your actual data transfer speed will be limited by your computers, primarily by the hard drive speed. With newer computers, many users can achieve data transfer speeds of 20 MBps or more.

Splitting music between external hard-drive and laptop?

I've just bought an external hard-drive for my ageing Powerbook, and am wanting to split my iTunes collection so I have all of my music on the external drive, and a selection (30Gb or so) on my laptop, for when I'm on the move or disconnected.
There are several posts on this topic, but they all seem confusing and contradictory. Most people seemed to suggest using the Multiple Libraries function in iTunes, so this is what I did. I set up a small library file for the music on my laptop, and a larger one for the music stored on the external drive, which I can switch between by using the Option/Alt key when loading iTunes.
The problem is, iTunes doesn't seem to allow you to have different Music Folders for each of these libraries. So if I change the destination for my Large Library so that music is sent to/stored on my external hard-drive, it also changes it for my Small Library - and vice versa. So iTunes is constantly loading up with the wrong default settings, and if I try to correct it, it starts laboriously re-labelling my entire library. It's now telling me half the music I know is on my laptop can only be found on my external.
I realise I could just unselect the "Keep iTunes folder organised" and "Copy to iTunes Music folder" options, but this would mean having a mass of music labelled on my laptop that's not actually there when I don't have my hard-drive plugged in, with the Missing Excalamation Point Of Death taking over my screen. I do not want this.
Is there no simple way to have music separated into two places, and my computer show me what's actually there? It ain't rocket science, is it?
All assistance gratefully recieved.

There is a KB doc from Apple: http://docs.info.apple.com/article.html?artnum=304447. The KB doc shows how to add a second (or third, etc) to your iTunes app. This is what I've done so I now have a library that uses my external drive for normal usage at home and syncing my iPod and iPhone. The second library is used for just music when I'm on the road. Hope this helps.

Access permissions to external hard disks and media players

I've recently purchased an iMac. I have a number of external disks and media players that when connected are not allowed write access. When I use the disk utility I cannot change the permission from read only. Whats the solution to changing them to read and write access?
Thanks

Hi Kieran
Welcome to Apple Discussions
You can not write to them because they a formatted windows NTFS.
See > http://www.macworld.com/article/51972/2006/07/ww_drives.html
If you want to use an external disk with both PC's and Mac's, you will need to re-format it MS-DOS/FAT-32.
If you wish to use them with only the Mac's, you will need to Format then GUID partition/Mac OS X.
See > http://www.kenstone.net/fcphomepage/partitioningtiger.html
*+Proceed with caution when re-formatting disks+:*
1. Before re-formatting any drive you will need to backup the current data on it to a computer or another drive, because re-formatting will erase all the data on the drive.
2. Fat-32 has a file size limit of 4GB and will not allow single file transfers greater than 3.7 or 3.8GB.
3. You may not be able to change the format or write to many media players without special software.
Dennis

Can you detect the difference between a hard disk and a CD drive in LabVIEW?

I need to how to detect a hard disk drive from a CD drive in my LabVIEW application.

I got this set of VIs a while ago. I wish I could remember where they came from so the author can can be properly thanked. The one you want is called Get Drive Type.
Attachments:
windows_api_1.0.zip ‏186 KB

External hard disk - transfer library

I've bought a new external hard disk and would like to transfer my complete library to that disk and thus refer to/and work on the external disk whenever I open iPhoto. Is this possible and how do I transfer the complete library?

Hi Anne,
Copy the ENTIRE iPhoto Library folder to a Mac formatted external drive.
Launch iPhoto while holding down the Option key.
At the prompt, choose to open another library.
Navigate to the library on the external and highlight it.
Hit the "open" button
iPhoto will open the library on the external and from now on will use this library to import images to. This will now be your working library. Make sure everything is working correctly and everything is fine in the library.
You can then delete the library on the internal if you wish.
http://docs.info.apple.com/article.html?artnum=93037

Hi, i'm new in my macbook air! i miss deleted my external hard disk few day ago and i had spend 45GBP to recovery the data! but the problem now is the text document is locked i not even can read and open the document! any solution??? urgent

hi, i'm new in macbook air, i was miss formatted and delete all my data on my external hard disk (pic, microsoft office document and etc). i spend 45gbp to install the software fianlly recovery all the data! but why my text document can't open and read?? what's is the problem?? because i'm still a student i hv alot of assignment file cant be read and open but nect week is the deadline of submission and i have no back up of all document. So any useful suggetion solution?? i've try the way alt+command+i to unlock but it doesn't work!! help! URGENT

when i open the file it appear some digits and word tat i couldn't understand. and the tool bar stated "Locked"
example: 422583321135679999=@ABBCCEEFGHIKJHMIFFFHFHDCEGFFBI\cb[C?@<=>=;;;<;>>>?<>B@>?==< =>?>@A?>?@<==<;:::899:89>:9;99;9:;<;66988;359<==9987789:8::9;>>=799<>:88856::;<: 99====<::98988;;96677998887866:89::;99647878665797698899;8466646763/121120+031/1 2/.1.,.0//.+/,+.0220/0.-/21-++--1---+-.+-.--/=Pdoxx
the digits and words tat appear on my document!
i used MiniTool Mac data to recovery! actually b4 tat i'm using hp computer and i saved all my files in my external hard disk. When i using mac i installed the NTFS-3G but it still cant read my external hard disk and i miss deleted and formatted all the data in my external hard disk. after tat my friends suggest me to purchased the software to recover all the data,finally i got all my photo back except my microsoft office files.
i purchased miscrosoft office software for my mac yesterday but the files still cant be read and couldnt recover back the document tat i saved! i was upset to spent alot of money but still cant get my document back!!

How to use an external hard drive and copy files to the disk for mac and windows??

please tell me how to copy files to external hard disk and use it for both mac and windows. there is the fat32 formatting bt i dont wanna use formatting because i already have a lot of content on the exteral hard disk. thank you.

It is simplest to have the HDD formatted to noe common to both Mac an PC. ExFAT is one. But to do that will erase all data on the HDD.
If the HDD id formatted NTFS, Mac can read but not write to it. The solution then is to use a third party application such as Paragon or Tuxera which will overcome that obstacle. These applications do have mixed reviews.
Ciao.

Slow transfer rate between external hard disk and TC

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