Disk IMage extremely slow

I"m trying to make a disk image from a large video project.
I don't understand why this is so extremely slow. Idvd does this in 1 or 2 hours.
Dvd studio Pro has been going for more than 6 hours. It looks like it will take 9 or 10 hours at this rate. In the preferences it's set for 1 pass vbr and best.
Something must be wrong. Why should this take 10 hours?
also, I left region 7 unchecked in the region window. Is that a problem?

I started answering you in the other thread (double posted the issue it looks like)
http://discussions.apple.com/thread.jspa?threadID=2225971&tstart=0
Take a look at the other thread. 9 or 10 hours to encode may be correct, especially on the machines you describe in the other thread. How long is the movie (running time?) If you are low on disk space, working off of only one drive and other things can slow things down...
The Region 7 unchecked should not affect speeds, but you probably want to check it as a matter of course....

Similar Messages

Finder/Disk Access Extremely Slow

I have a G4 867 (MDD) running OS 10.4.6. After putting my computer to sleep last night, I woke up this morning to find hanging at the login-from-sleep screen. I force-restarted, and since that point the computer, and especially some components of the Finder, has been running EXTREMELY slow.
Symptoms:
-Hard drives are slow to appear (I have two on the primary channel and two on the secondary). They will eventually show up, but it can take over a minute for drives other than the startup drive. When I scan them with Disk Utility, they appear fine.
-Using menus and accessing files in the Finder can take upwards of a minute or so. Likewise, switching between programs can induce waits of about 30 seconds.
-Curiously, once inside a program (say, Safari or iTunes), no problems exist local to the program, and it can run nearly unaffected... but if I need to change applications or access a file outside the program, the problems surface.
Things I've tried:
-Restarting.
-Trashing my Finder prefs.
-Zapping the PRAM.
-Resetting the PMU.
-Running Disk Utility.
-Running Yasu.
-Reinstalling the 10.4.6 Update.
-Trying to reinstall Tiger (which failed; initially, the DVD couldn't see the drives- then, after I checked them with Disk Utility, it could see them but failed to install after checking the DVD and asked me to restart)
Can anyone help?
G4 Dual 867 (Mirrored Drive Doors) Mac OS X (10.4.6) 2 GB RAM, ATI Radeon 9800 Pro AGP

I got my AE and Seagate FreeAgent Pro hard drive
yesturday and I have the exact same problem.
If I hook up the drive to the computer directly it is
very very fast.
If I hook it up to the AE it takes about 2 hours to
move a couple fils totaling 2 gigs over ETHERNET!
If I transfer the same files over the same network
between 2 computers the speed is much much faster.
Is this normal or some nasty firmware bug. It almost
feels like the AE is using USB 1.0 for some reason.
You guys are funny. How about checking out the specs of USB 2.0 and 802.11g/n?
Go here:
http://en.wikipedia.org/wiki/802.11g#802.11g
and here:
http://en.wikipedia.org/wiki/USB_2.0
Firewire vs. USB tests are here:
http://www.g4tv.com/techtvvault/features/39129/USB20_Versus_FireWirepg3.html
802.11g:
Release Date Op. Frequency Data Rate (Typ) Data Rate (Max) Range (Indoor)
June 2003 2.4 GHz 19 Mbit/s 54 Mbit/s ~35 meters
802.11n:
Release Date Op. Frequency Data Rate (Typ) Data Rate (Max) Range (Indoor)
Mid 2008 5 GHz and/or 2.4 GHz 74 Mbit/s 248 Mbit/s (2 stream) ~70 meters
Bottom line: 802.11n typical is 74Mbps, 802.11g typical is 19Mbps. USB 2.0 typical is 50Mbps.
On the average, you should expect your speed to drop by over 50% when connecting the USB drive to AESB using an 802.11g device. If your device is 802.11n, then you should have pretty much similar performance.
Now, if you increase the distance from your base station, or you put walls in between, the performance of 802.11g will go down "dramatically", all the way to 2-3Mbps, easy. Not so for 802.11n, which behaves much better at longer distances.

Encrypted Disk Image creation slow?

I just got a new MBP with Leopard. I have created a number of encrypted disk images in the past using Tiger and a MBP and have not had any trouble. This weekend I tried a few times to create a 50 gig encrypted disk image (128 AES) on an external drive and after going through the process of setting it up and waiting for it to be created, (and watching the progress bar as it was being created), after about 45 minutes NO progress was showing on the progress bar. I ended up having to cancel the creation a few times because I thought something was going wrong. I’m not sure if there is a problem creating the disk image, or leopard is slow, or what.
Does anyone know how long, on average, it would take to create an encrypted disk image of this size using leopard? I just want to know if there is a problem doing this on my MBP. Thanks for the help.

A regular 50 GB disk image takes 50GB of space, no matter if it is full of files or empty.
A 50 GB sparse disk image only takes up the amount of space equivalent to that of its enclosed files. So if the 50GB sparse image only has 1 GB of files inside, the image won't be much bigger than 1GB.
A sparse bundle is similar to a sparse image, but instead of a single file it is a folder package with many, many enclosed files called bands. A new file added to the sparse bundle will tend to modify only a few bands. This makes incremental backups of a sparse bundle more efficient because only the changed bands need to be backed up again. Any change to a sparse or regular disk image will mean that the entire image will need to be backed up again.
If you regularly add/remove files to a disk image, and you intend to back up that disk image with Time Machine, a sparse bundle is definitely the way to go. The other types will fill up your TM volume very quickly.

Disk access extremely slow after 10.5.2 Update

I did the update to 10.5.2 today.
1. I tried to update via Software Update. The update started but then stopped with an Error message (Contact Support) and the system freezed. There was just the spinning wheel on blue background for more than one hour. No more harddisk activity. I finally rebooted (hard way). After a reboot I had a somehow upgraded system. But many things did not work anymore (most applications crashed, mail could not access keychain items anymore, etcpp)
2. Then I downloaded the complete Update package to do a manual update (happily firefox still worked). After a manual install it worked. It installed fine and rebooted. Now everything works as it should with the only problem that everything is extremly slow. Starting an application lasts about double the time as normal, loading files takes 3 to 4 times more time than with 10.5.1
To fix these issues I tried several things:
- Fixed permissions
- Cleared all cache files and forced system to rebuild them
- Severall reboots
- Waited until backup completed and Spotlight index was rebuilt
Bootup time is now fine (more or less). Just a little slower than 10.5.1. Application start is still slow but better. But the file access is still extremly slow. This can be observed very well in Parallels which still works fine, but needs 3 to 4 times longer to start (so do all applications within parallels). I checked CPU (Activity Monitor) but could not see anything special.
Any ideas what could be the reason for this behaviour and (more important) how to possibly fix this? I'm thinking about going back to 10.5.1 with time-machine and then try it again with the package install.
Any help/ideas would be appreciated.

Is it slow wireless LAN behavior affecting Time Machine? Check out the third page of this thread, specificallly the post by John Albergo about "delay_ack."
http://discussions.apple.com/thread.jspa?threadID=1394485&start=30&tstart=0
It helped me a lot.

USB Disk access "Extremely" Slow

I am unable to use my network disk essentially because the disk access write/read times are SO SLOW...I am better off running backups by connecting my disk directly to the compter. Does anyone else have this problem?
It took 5 Minutes to read my Music directory; connected directly via the same cable it takes seconds.
What gives?
Any help would be appreciated.

I got my AE and Seagate FreeAgent Pro hard drive
yesturday and I have the exact same problem.
If I hook up the drive to the computer directly it is
very very fast.
If I hook it up to the AE it takes about 2 hours to
move a couple fils totaling 2 gigs over ETHERNET!
If I transfer the same files over the same network
between 2 computers the speed is much much faster.
Is this normal or some nasty firmware bug. It almost
feels like the AE is using USB 1.0 for some reason.
You guys are funny. How about checking out the specs of USB 2.0 and 802.11g/n?
Go here:
http://en.wikipedia.org/wiki/802.11g#802.11g
and here:
http://en.wikipedia.org/wiki/USB_2.0
Firewire vs. USB tests are here:
http://www.g4tv.com/techtvvault/features/39129/USB20_Versus_FireWirepg3.html
802.11g:
Release Date Op. Frequency Data Rate (Typ) Data Rate (Max) Range (Indoor)
June 2003 2.4 GHz 19 Mbit/s 54 Mbit/s ~35 meters
802.11n:
Release Date Op. Frequency Data Rate (Typ) Data Rate (Max) Range (Indoor)
Mid 2008 5 GHz and/or 2.4 GHz 74 Mbit/s 248 Mbit/s (2 stream) ~70 meters
Bottom line: 802.11n typical is 74Mbps, 802.11g typical is 19Mbps. USB 2.0 typical is 50Mbps.
On the average, you should expect your speed to drop by over 50% when connecting the USB drive to AESB using an 802.11g device. If your device is 802.11n, then you should have pretty much similar performance.
Now, if you increase the distance from your base station, or you put walls in between, the performance of 802.11g will go down "dramatically", all the way to 2-3Mbps, easy. Not so for 802.11n, which behaves much better at longer distances.

Choose Disk interface extremely slow

Odd problem. On my MacPro I've been backing up to an external FW800 drive for quite awhile. Earlier last week I moved that drive to my Leopard Server, repartitioned it and reformatted it. I've made it available as a time machine backup destination and my Mini and MBP are happily backing up to it now.
Problem is on the MacPro when I select "Change Disk" in the time machine preferences it takes forever to bring up a list (at least a minute). On that list I see my local drives and the server drive. Each refresh of the list takes a minute or more (i.e. I click no disk or the server drive). Eventually I get the server drive selected and when it goes to back up it says the drive can't be mounted.
Any idea what's going on?

Hello oswaldt,
Do you still experience the "slow interface" problem with Time Machine?
I had the same with Mac OS 10.5.4 Server on a PowerMac G5. The problem went away after a fresh install. But now having switched on a MacPro and done a bit of configuration on the server, I get the "slow interface" problem back.
Here's what I've done so far, so you may recognize something in your setup:
- Server boot disc is a mirror of 2 x 250 GB (internal).
- The 2 other internal drives are 500 GB each, and were concatenated.
- A Sonnet Fusion D500P is connected through a Sonnet Tempo SATA E4P controller card. Tower is loaded this way:
-- bay 1: 500 GB
-- bay 2: 500 GB
-- bay 3: 1000 GB
-- bay 4: 500 GB
-- bay 5: 500 GB
bay 1 and 4 are stripped (STRIP1);
bay 2 and 5 are also stripped (STRIP2);
STRIP1 and STRIP2 are mirrored;
bay 3 is the TimeMachine backup drive;
All disc mirroring, contenation and stripping were done using DiskUtility.
[edit]: I've forgot, I also have a 300 GB Maxtor OneTouch drive connected through FireWire...
The MacPro has 8GB of RAM.
On the server config side, I have:
- Fixed IP address;
- working DNS setup with a custom-made top-level zone for the LAN;
- freshly started OpenDirectory service;
- AFP service running (automatic configuration, I've touched nothing);
- no other service running for now;
- hostname returned by command "hostname" in Terminal is not <nameOfComputer>.local. It's a fully qualified name like server.gti.lan.
Note that, on my side, although the interface is very slow, I can get TimeMachine to work. So I suspect there are two problems in your case: slow GUI response time, and then drive-related issue.
Let me know what you can find. I've seen very few posts regarding that problem, and found none answered so far...
Message was edited by: Frederic Denis

Disk Utility: Extremely slow read phase during permissions repair

Shortly (but not immediately) after I upgraded from 10.3.9 to 10.5.6, repair permissions began taking a ridiculously long time to complete. Looking at the DU log, I see the read phase is the problem: DU spends over 2 hours on this, then performs the repair phase in a reasonable period. I'm using roughly 90 of my drive's 150 GB.
Last night, in Activity Monitor, I saw DU start 4 threads, which used 3-5% CPU initially. Checking later, I noticed CPU had dropped to 0% and stayed there until the repair phase started, at which point CPU went to 3-7%.

You know, don't you, that "Repair Permissions" doesn't actually REPAIR anything?
It does one thing: It goes through the BOM file (and, now with 10.5, the database as well), and compares the permissions on system files and on applications installed that put a receipt in there, and RESETS the permissions to whatever the BOM files and database say. Nothing more, nothing less. NO ISSUES related to the users home folder can be repaired in any way, because there are no receipts for them.
I'm not saying there aren't a set of very specific issues that "Repair Permissions" can't fix. But to say it should be regularly used to troubleshoot and as proactive maintenance is like recommending chiropractic care to fix a hangnail. It probably does more harm than good, as there may be cases where you actually WANT to change permissions, and "Repair Permissions" stomps all over them.

Writing to Encrypted Disk Image SLOW On Mac Pro

I have a slew of Previous Gen (2010/2012) Mac Pro 12-Core 2.66 desktops running 10.8.5 (12F45). When making a standard 128-bit Encrypted Disk Image, the write speed to that image is extremely slow. Disk image is on the same system internal drive as the source material. Also tried on Gigabit Ethernet share. 1GB file takes 20 minutes.
If I take the same disk image and run it on a 2012 Mac mini server 2.6 i7 running 10.8.5 (12F45), the write speed is fast; 1GB takes 1 minute. Same holds true for a MacBook Pro (non-Retina) 2.3 i7 running 10.8.5 (12F45).
Antivirus is disabled on all machines for testing purposes. Mac mini is actually a clone of the Mac Pro's system, so everything is the same, software-wise.
Is there something inherently wrong with these Xeon Mac Pros that they cannot write fast to encrypted disks? Any other variables I'm not thinking of?
Thanks in advance.

The write speed to an encrypted image is around 5.65MB/s in comparison to 92MB/s on normal disk. I feel frustrated to see the remaining time to copy 800GB of data from internal HDD to the mounted encrypted volume takes around 1 day. An encrypted disk managed by Truecrypt on any PC will work much better than it.
iMac (Late 2013), OS X Yosemite (10.10.1)

Extremely slow speed when backing up onto Airport Extreme disk

I have a wireless network set up with the Network Extreme basestation. The basestation has a 500 GB iomega drive attached via the USB 2.0 port. The disk comes up just fine, but when I try to use it as a backup disk from my iMac using SuperDuper!, I get an effective peak copy speed of 1.9 MB/s, and it takes multiple hours to perform a ~30 GB backup. The disk is Mac formatted.
For comparison, if I plug the disk directly into the USB port on my iMac, the peak effective speed is ~15 MB/s and the backup takes 35 min.
The iMac and the basestation are both running 802.11n, with an effective speed of 130 MB/s.
On the off chance that it was the disk imaging process that was slowing things down, I have run SuperDuper! with disk imaging back to the iMac's HD rather than the Airport Extreme HD and it runs at ~20 MB/s.
To review:
- Trying to backup to the Airport disk runs really, really slowly and takes forever
- It's not the network speed, the HD speed or the software.
What's up? Anyone else have this problem? One of the reasons I bought the Airport Extreme was to use it as a network back-up HD. If it going to take a day to copy a full iMac disk, then this is clearly unsatisfactory.

I would echo Glyn's assessment. One needs to keep in mind that Apple designed this product as a low cost device to meet the typical requirements of a home user (ie streaming of music, sharing of a few files, and backups without time constraints). If one needs the performance levels typical of a network file server, then this is the wrong product to use. Perhaps Apple's marketing information for this device should make that a bit clearer.

My Macbook pro Early 2008 is randomly slow at starting up and when I am backing up to my time capsule I am receiving the following message 'Time machine could not complete the backup. '' ''The backup disk image ''/Volumes/name time capsule/ my name MacBoo

My Macbook pro Early 2008 is randomly slow at starting up and when I am backing up to my time capsule I am receiving the following message 'Time machine could not complete the backup. '' ''The backup disk image ''/Volumes/name time capsule/ my name MacBook Pro (4).sparsebundle'' could not be accessed (error-1).
Problem started after deleting parrell desktop and window7 ?
Please help?

Look at the more like this column on the right.. this is the most frequently asked question in this discussion area.
Reboot the TC.. restart the whole network if the simple reboot did not work.. start in order. modem.. router/TC.. clients. 2min gap.
Read C12 here. http://pondini.org/TM/Troubleshooting.html

Disk Utility-Partitioning EXTREMELY slow

I just purchased a 250GB external HD for backups. I want to create two partitions so I have 50GB as a bootable HD clone (using Carbon Copy Cloner) and the remainder to use as ongoing backups with Time Machine. In Disk Utility, selecting First Aid works normally. But selecting Partition is extremely slow going. I click on Partition and it's gray, not blue. Only after 2 minutes do I get the Partition info. I select the 2 Partitions drop down. That takes another 2 minutes to activate. Naming the 1st partition takes the same time and so forth. Why? I've repaired disk permissions but it still behaves like this.

The hard drive I'm partitioning is a new external one and it's empty. Do you mean that my internal hard drive (which has about 40GB of data) could slow down partitioning of the ext. HD?

Image browsing very slow - iPhoto library on a shared disk image

Hello,
I'm experiencing serious slowness when browsing images with iPhoto. I get the spinning beach ball for several seconds every time go to next image. According to the activity monitor my CPU load is close to 100% when this happens. The problems started when I got a new camera and had to update to Photo 11 to get the RAW support. Also, I had to update to Mountain Lion to get iPhoto 11 running.
My library is on a shared disk image, and my wife and I are sharing the same library. I have increased the size of the image a couple of times as my library has grown. We have 17680 pictures in the library. Mostly RAW format.
I have tried flushing the iphoto cache and rebuilding the library. No effect. Then I created a new library (non-shared) and that seemed to work fine. The problem seems to be related to the disk image. I don't know what to do? Is there something I could try?
I'm running OS X 10.8.4 and iPhoto 9.4.3. There is about 100 GB free space on my boot drive. Here is my hardware Overview:
Model Name:    iMac
Model Identifier:    iMac9,1
Processor Name:    Intel Core 2 Duo
Processor Speed:    2,66 GHz
Number of Processors:    1
Total Number of Cores:    2
L2 Cache:    6 MB
Memory:    4 GB
Bus Speed:    1,07 GHz
Thanks,
Lasse

Using a disk image in the Shared folder has worked for few that it's not a method I would advise using in any situation. Get an external HD as TD has suggested. You'll be a lot more satisfied with the results if you do.
OT

Encrypted disk image creation very slow-

I just got a new MBP with Leopard. I have created a number of encrypted disk images in the past using Tiger and a MBP and have not had any trouble. This weekend I tried a few times to create a 50 gig encrypted disk image (128 AES) on an external drive and after going through the process of setting it up and waiting for it to be created, (and watching the progress bar as it was being created), after about 45 minutes NO progress was showing on the progress bar. I ended up having to cancel the creation a few times because I thought something was going wrong. I’m not sure if there is a problem creating the disk image, or leopard is slow, or what.
Does anyone know how long, on average, it would take to create an encrypted disk image of this size using leopard? I just want to know if there is a problem doing this on my MBP. Thanks for the help.

A regular 50 GB disk image takes 50GB of space, no matter if it is full of files or empty.
A 50 GB sparse disk image only takes up the amount of space equivalent to that of its enclosed files. So if the 50GB sparse image only has 1 GB of files inside, the image won't be much bigger than 1GB.
A sparse bundle is similar to a sparse image, but instead of a single file it is a folder package with many, many enclosed files called bands. A new file added to the sparse bundle will tend to modify only a few bands. This makes incremental backups of a sparse bundle more efficient because only the changed bands need to be backed up again. Any change to a sparse or regular disk image will mean that the entire image will need to be backed up again.
If you regularly add/remove files to a disk image, and you intend to back up that disk image with Time Machine, a sparse bundle is definitely the way to go. The other types will fill up your TM volume very quickly.

Time Machine Backup error - The backup disk image "/Volumes/Data/Extreme.sparsebundle" could not be accessed (error -1).

I am getting a Time Machine backup error "The backup disk image “/Volumes/Data/Extreme.sparsebundle” could not be accessed (error -1)."
Then a Finder window pops up with the backup directory in it. When I open it I see all the backups that were completed successfully and then the one there is simply always shows the data and .inProgress. I thought that maybe if I could delete the one that is perpetually in progress it would start a new one and run fine, but I won't let me delete it.

Reboot the TC.. or go to the 5.6 utility.. and disconnect all users.. to force it to reconnect.
C17 in troubleshooting.. to give more specifics to Kappy's comment.
http://pondini.org/TM/Troubleshooting.html

Airport Disk extremely slow

I recently purchased a Mac Pro (2.66 GHz) with Airport Extreme and an Airport Extreme (802.11n) Base Station. I have OS 10.5.1 installed. I am able to find my USB drive attached to the AEBS as an Airport Disk, but it is extremely slow. I initiated connection to the disk (500GB) about 30 minutes ago, and the files on the disk have yet to show up - the little circle in the Finder window is still spinning. Any suggestions as to what's the problem and how to fix it? Thanks.

Simple answer: There is a problem with the firmware 7.2.1 update. Simple solution is to revert back to firmware 7.1.1. Apple knows about, but is being silent about the problem as of 12/3/2007. (A new firmware update is in the making, but don't hold your breath) The issue is still there with Leopard, so don't look to the new cat for a fix. I found the following info in a different thread and now my airport disks works perfectly again.
I started having this issue right after the firmware update 7.2.1
I went back to the firmware update 7.1.1 and all is fine now my airport disks are working normal
to change the firmware update go to
Airport utility
select manual setup
go to summary
Click directly on the word "version" and change it to 7.1.1
Message was edited by: Jason Bousselaire

Disk IMage extremely slow

Similar Messages

Maybe you are looking for