MacBook :: Hard Drive Slow Read And Write Speed?
Mar 30, 2012
I have an early 2009 macbook, with 320 GB hard drive and running OS Lion, after i upgraded my os to lion, the computer ran perfectly normal, although a little bit slower than running snow Leopard. However, recently I notice my mac become very slow, got rainbow wheel even when i open the safari. then I use the black magic to test the hard disk speed, it appears the read and write speed is only a little over 30mb/s.
i have recently change my keyboard at apple store, I notice my mac slow down after that, do you think it would related?
Info:
MacBook, Mac OS X (10.7.1)
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Apr 27, 2012
My Mac Pro came with a 500GB boot drive when I ordered it 3 years ago. It has been used most days and now runs Snow Leopard (for scanners and a canopus video box that don't work with Lion) and Lion. I did a write & write test on the drive recently at both were approx 60 - 65 MB/s. I have another drive in my machine I bought last month, replacing an WD drive that failed in less than 18 months. This new drive (complete same as replacement is a WD Caviar (Black) 1TB 64Mb drive. This drive tests at speeds for 110MB/s. This may seem an obvious question, but will I notice much difference if I swap the drives around and have the newer drive as my boot drive. Also, does having two OS on a HD slow the drive down also?
Info:
Mac Pro, Mac OS X (10.7.3)
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Mar 25, 2012
I recently borrowed my brother's laptop to use as a media station for listening to music from, and watching movies, in order to free up some space on my main macbook. In trying to migrate some files over, I discovered that my hard drive, a 320 GB WD Elements drive, is having some problems which I've never encountered before. It has always worked fine in the past, but now I can't transfer any files to or from it, from either computer. In all of my troubleshooting, I've gotten various errors, (-36, -50), and various messages saying how the device can't be read or written from, or how some files contian unreadable data, etc.Disk Utility found an unused node when verifying the disk, and notified me that the disk needed to be repaired.I then used Disk Utility, which said it was able to successfully repair it, but the same problem remains, and after verifying the disk, it still says it needs to be repaired.I've tried to find any files that may be causing the problem, and was finally able to delete a seemingly troublesome file that was stuck in my trash bin from the external drive after trying various apps, (ie Trash It, Cocktail, What's Keeping Me?).This didn't end up solving anything...I've used terminal to eliminate some other potentially problematic files, with no luck still, and I'm not too confident with Terminal so I don't want to be messing around too much without more guidance.
I've used Disk Warrior to try to solve the problem, but still with no success.When I use the app to Check All Files and Folders, it does so for only a few seconds, then reports that "An unexpected error ocurred while attempting to perform file operations" for several files, and that several files' "Property list is damaged and cannot be repaired". When using Disk Warrior to REBUILD the drive, the app pauses for about 15 seconds, then says that it can't be rebuilt because it is in use.Again, I've used the What's Keeping Me? app to kill any activity with the drive, and the same error occurs.I've spent a lot of time trying to sort this out.
Info:
MacBook, Mac OS X (10.7.3)
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May 21, 2012
I have an external hard drive(seagate 250 NTFS format) which i have used on my windows 7 computer now that i'm trying to load the information onto my macbook pro (10.7.4) it will not let me change the permissions nor duplicate the files. How can I be able to edit and save the information to my mac from the external drive??
Info:
MacBook Pro, Mac OS X (10.7.4)
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Oct 13, 2010
What is the standard tool to test your hard drives read/write speeds? I'd like to test my new SSD to see how fast it really is. I've heard you cant trust XBench for that which is the only thing I have to use.
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Jun 21, 2012
I just had the hard drive replaced in my IMac and it only at 1 to 1 or maybe 2 to 1 speed. my old one did over 10 to 1. car it be speeded up? Any way to get hard drive to read/ write faster?
Info:
iMac, Mac OS X (10.7.4)
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May 12, 2009
There's been a large emphasis on the sequential read/write speeds of SSDs, but in many day-to-day usage patterns, the random read/write speeds are a better benchmark of performance. I'd like to make a chart summarizing all the different SSDs out there and available. But I need your help. Can those of you with SSDs run a benchmark and report the numbers here so that I can compile everything? Here are the steps:
1. Download Xbench 1.3 at [URL].
2. Open the program and run the "Disk Test" for your SSD drive.
3. Note the numbers under the Random test, for all four parameters of small and large writes and reads.
4. Repeat the test a second time to make sure that the numbers do not change. Accept the second test if the values are <10% different from the first test.
5. Screen capture the window by holding down command and shift and 4 and the spacebar. Click on the result window and that will save as a png file on the desktop; the default is Picture 1.png.
6. Report the values here with by attaching the screenshot of the result window. This will give us other needed information like computer and SSD model.
I realize that there are weaknesses to this survey. Xbench is only one benchmark. SSD speeds will vary based on usage. Etc. In the end, however, the variability should be sufficiently small that I think we'll be able to compare different SSDs well.
I'm going to get us started by posting my results with an Intel X-25M on a previous generation MacBook Pro. Ironically, my result will probably get thrown out because the SATA 1.5 GB interface actually limits the SSD read speed...
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Nov 14, 2010
I bought a Seagate Free Agent Go Flex External drive. I transferred all my files from my previous external HD.
When I went to access my folders on my external HD, the folders are all locked, with Sharing and Permission section in the Information "Everyone: Read" only! I can't change any of the information or move things! All of them are locked and "read only." I know how to change it, but only manually, individually. I have several hundreds of folders and I don't want to manually change all of them to "Read & Write." Is their a way to let me re-set the folders to "Read & Write" easily??
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Feb 15, 2011
i had a External Harddrive.Currently i can Read//Write on it in Windows PC(Windows7)But when i use the same drive in Mac i can only read...but can't able to write. How to resolve this issue
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Apr 17, 2009
I'm finding my MBA rev b to be quite slow opening apps, I bought the 1.6 ghz 120gb model.
It seems like everything's rather slow to open. I have 30gb free on the hard drive, iTunes, Safari (5 tabs) TextWrangler and mail open all day.
If I ever need to go into Firefox it takes a fair while to get up and running. I ran some xbench scores and it seems very slow on the random reads, oddly it was much quicker writing to the disk than reading.
Is their anyone in the know who can confirm that this is normal? Or if not, is there anything I can do to give it a boost?
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Dec 17, 2010
Admittedly new to the world of wireless networking. Have my 1TB LaCie USB hard drive plugged into my AirPort Extreme. I had high hopes of keeping my iPhoto and iTunes libraries on this hard drive for access downstairs with my MacBook. Got it all setup tonight, and attempted to put a 1.5GB file from my MacBook on the hard drive. According to Finder it was going to take 8 hours to complete the transfer! Does this sound right? I realize USB is slow, but I didn't think that slow. The Belkin-N300 router I had before was faster than this on the USB sharing side.
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Oct 21, 2008
I recemtly purchased a G4 at a local thrift store for $10. After repairing the processor and installing and updating os X 10.4 on a 20g drive I added and additional 100g drive for music and videos. The 20g drive read/write is fine and writing to the 100g works fine also. When attempting to view videos located on the 100g drive, the system hangs. when using itunes it must rebuffer every few seconds.
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Aug 17, 2009
recently I bought WD6400AAKS hard drive. I made to partitions (1st for OS and applications, 2nd one for photo files). I also did fresh OS install and loaded basic applications. Strangely I didn't notice any speed boost while booting and to be honest I feel like all applications (photoshop for example) are also starting much slower than on original hdd.
Is there any way to test hard drive if it performs as it should be? I also have 2 more older drives installed. is it possible that one of them would slow the system down?
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Jun 20, 2012
The optical drive on my 17mpb will read and play any DVD I put in just fine, but when it comes to everything else it will not read or write. The drive whirrs around and then spits the media back out.
Info:MacBookPro, Mac OS X (10.5.8), lion
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Feb 3, 2009
recently I bought WD6400AAKS hard drive. I made to partitions (1st for OS and applications, 2nd one for photo files). I also did fresh OS install and loaded basic applications. Strangely I didn't notice any speed boost while booting and to be honest I feel like all applications (photoshop for example) are also starting much slower than on original hdd.
Is there any way to test hard drive if it performs as it should be? I also have 2 more older drives installed. is it possible that one of them would slow the system down?
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Apr 29, 2012
Brand new iMac 27" 2.7GHz 16GB Ram running 10.7.3. CD read speeds are very slow...something like 5x. Importing audio CDs to iTunes is extremely slow. Error checking is turned OFF.
Info:
iMac, Mac OS X (10.7.3)
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Sep 17, 2007
This issue has been killing my work flow for quite awhile. I have a G5 dual 2.0. I can barely read or write files to an external hard drive. Say I try and copy 1.56GB of audio (12 files) from my external drive it will start to copy then stop at 500mb for minutes then start moving as normal and stop again around 900 for minutes.. then again at 1.4. This also happens when writing.
Here is the confusing part. This happens with two external drives (different models) with firewire 400, 800 and USB. I have reinstall OSx. I have repaired permissions and ran repair disc on everything. These hard drives work FLAWLESS with my Macbook Pro as well. Gr what can this be? It takes forever to copy data to or from a drive which is often how I transfer audio between my desktop and laptop. I should soon have Mac Pro money and this crappy G5 can go out the window. I am on 10.4..
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Apr 13, 2012
hey all, this has been really frustrating for me today. i want to be able to write to an external HDD that's formatted in NTFS. today i find out it isn't possible to write to this file system on a Mac and that on FAT32 it is possible. however, FAT32 can't address files larger than 4GB so this hurts me a lot. are there any other file systems that'll allow me to read and write from a Mac? my goal was to use freeNAS to build a NAS with an old tower and connect my external hard drives to it, but if i can't write to them this may not be possible.
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Oct 25, 2010
I have my iMac since August. I use it a lot, and I've noticed that the hard disk makes read and write noise a lot of times, even using Safari, for example. It looks like fragmented. What can I do?
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Feb 15, 2011
When I connect my external hard disk (Maxtor) to my Mac Book Pro, I am not able to copy/transfer files to it, though I can copy from it to my Mac. How do I change the permissions from Read Only to Read and Write?
Information:
MacBook Pro
Mac OS X (10.5.6)
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Oct 4, 2010
I cannot put files in my flash drive for some reason. How do I change this setting? My flash drive format is Windows NT File System (NTFS).
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Aug 12, 2010
I have an external Transcend HD, which has been working perfectly fine for around 5 months now. It is NTFS, and I use NTFS-3g and Macfuse. Been running fine. Was able to read and write. Suddenly I am only able to read though. I go into the "Get Info" pane and the option to choose whether I want to read and write, or read only is gone, and all that it says is "You can read only". getting this back to read and write is really appreciated. I really need this disk.
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Apr 24, 2012
How do I change permission for writing to my usb harddrive that was previously used on a windows pc. At present it will not let me write and in the top of the window there is a pen which is crossed out.
Info:
MacBook
Pro, Mac OS X (10.6.8)
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May 5, 2012
How do I change a file or folder permissions from 'read only' to read/write.
I want to edit some music track information in iTunes, but my iTunes music folder is 'read only'
Info:
iMac (21.5-inch Mid 2011), Mac OS X (10.7.3)
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Mar 5, 2012
I bought a MacBook Pro 13"".I do have a seagate external hard drive. When i connect my External Harddrive to Mac the data can only be read mode.I am not able to Write data on to External Hard drive.
Info:
MacBook Pro, Mac OS X (10.5.7)
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Mar 12, 2012
I have a late 2009 MacBook pro, running the latest version of Lion. Last week, I experienced a Kernel panic at start up, and was unable to launch the OS, even with the recovery boot. Starting in verbose told me that there was a sata issue. I opened the computer, replaced the internal hard drive with lion set upon it, and tried to start again, without any success. I bought a SATA-USB cable to plug my old hard drive. My computer is now running normally, but with the former internal hard drive plugged in USB.
Disk manager sees the new one and I can read data written upon it, but I can't write anything nor erase or partition it. So both the hard drives are OK (I tested them in a friend's MacBook pro and it worked), the computer seems OK too, because I'm running it presently, but any internal hard drive won't work. The cable that links the hard drive to the motherboard does not seem to be damaged, however, the status indicator light is not working since that time.
Info:
MacBook Pro, Mac OS X (10.7.3)
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May 21, 2010
I'm using Data Rescue III on a USB powered hard drive with and it's taking a very long time with my iMac G5... It says 42,291 hours remaining (about 5 years) If I did it on my Mac Pro would it go faster, or is the recovery speed based on the hard drive speed?
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May 10, 2010
I have a Late 09 15" MBP and a WD 1TB external HD. I've never had a problem until now. I start up the hard drive, then it loads up fine and the Mac recognizes it just fine. As soon as I try to copy something - doesn't matter how big it is - I get an error and at the end it says "(Error code - 36)". It just says the file cannot be read or written. Weird thing is I can access everything on the hard drive. Anyone have any tips before I try reformatting the HD?
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Mar 26, 2012
My external hard drive was accidentally unplugged without ejecting. Now when I plug it in, it read only. I can copy files from it but not to it. Is there a way to reinstate write access without losing my data?
Info:MacBook Pro, Mac OS X (10.6.4)
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Nov 5, 2006
I know this is lame, but I searched and can't find a solution. When I click on a day in ical it says it is a Read-only calendar. I repaired permissions, but it still says read only. The strange part is, in the Get Info screen, it says Read-Write for all the users.
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