Fusion drive very slow

My fusion drive is not working, in fact, it's terrible. I have a late 2012 Imac, with the 3 TB fusion drive, and it is no longer under warranty.
On a Blackmagic Disk Test, here are the results (and what is amazingly bad is the READ results....)
The drive is NOT encrypted, it only 25% full, and I have re-indexed it twice.
In case the screen shot of the Blackmagic test does not show up, the figures are listed below:
READ: 15 MB
WRITE: Average 197 MB
Is it possible that the Flash unit has somehow failed?

To be honest antivirus software is simply unnecessary for OS X. OS X is not like MS Windows that relies on antivirus software to run well. The best thing you can do is simply keep OS X up-to-date by running Software Update frequently and installing all suggested updates. Antivirus apps in general tend to create more issues than they solve and should be avoided. However if you receive a lot of email with attachments that you share with MS Windows users, those attachments could be carrying malware that could affect the Windows users, OS X is safe but the Windows users could have issues.
I would recommend uninstalling Sophos too unless you share files with Windows users. If you do and feel like you have to have antivirus software installed do not be surprised if eventually you have performance issues again, the likely candidate is the antivirus app.
Finally when replying in these forums please click reply in the body of the post you are replying to, otherwise we cannot tell who your communications is intended for.

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Fusion SSD very slow with Mavericks

Hi Everyone,
I have a Late 2012 Mac Mini with 2.3 quad core i7, 16g ram, 1TB of HDD and Samsung 840 250G SSD installed. I recently bought the samsung SSD in order to create my own Fusion drive but Since the expected release of Mavericks I decided to wait for it.
Soon as Mavericks was released I tried to create a DIY Fusion drive. I have done so with the help of OWC Fusion drive creation guide. and in theory managed to create it successfully.
The problem is that SSD start performing VERY SLOW!. Before the Fusion drive I had 250 Write and 500 Read, now I have between 40-50 Write and 120 Read.
Can anyone help me with this? I am pretty new in the mac world and not sure how to deal with it. I tried looking in forums (including this one) but could find solution.
Thanks,

Did you ever figure this out? I have a very similar issue going on right now that leaves me uncertain whether I am really getting strong speeds out of my SSD.
Let me know what you learned and if you want to know more about my situation, you can read it here: https://discussions.apple.com/thread/6063791

Mac mini fusion drive startup slow

Unfortunately my fusion drive was damaged and replaced by Apple service center. When I got it back it startup very slow, even slower than my white mac book.
Initially, I though it was not start up from SSD so I tried to select SSD as the start up disk. There are only one hard disk to select (bundled SSD and typical HDD and it showed a size of 1.1 TB). Is this normal to see only only one hard drive? I thought there should be 2 disc, SSD and normal HDD.
I also erased the disc and reinstalled the mountain lion, but it still start up slow.
Is there any configuration I have to do in order to make it boot up from SSD?

Thank you for your help.
My Mac HDD and SSD are as follow.
Is there anything wrong?

Mac Mini late 2012 with fusion drive running slow and has error code 4dd/11/4000000: sata (1,0) after running diagnostic

Hi,
I have a mac mini late 2012 i7 with 16 GB RAM, fusin drive 1.12TB. It became very lagging recently and after doing the first verify disk, I was prompted to reclone using time machine. Anyway I did a full restoration with my image and the problem still persist. And I did a verify disk again and this time it indicates the disk was ok and I even did a permission repair. Problem still persist and I did the PRAM reset and nothing helps.
I did a fresh mavericks installation. Initially it seems ok but after transfering more data into the system, the lagging seems to comes back. My suspicion was a hard disk failure on the 1tb hard drive.
Finally I did a diagnostic abd the test has this error code 4dd/11/4000000: sata (1,0) .
Does this means one of my drive is giving problem? As fusion drives comes with 2 drive I believe. One is 128GB SSD and the other is 1 TB drive.
My warranty has expired.
Thanks in advance for any help or advise

Hi IIIaass,
Thanks for the reply. I have search on youtube regards to the apple fusion drive. However, I didn't find anything useful. I would like to know if it consists of 2 hard drives or just 1 drive. And if it consists of 2 hard drives, can I buy another ssd and merge the 2 together.
I do not have the tools right now to open up the mac mini. I have ordered it online and its on the way. If you have any information on this, please share with me.
Thanks

OSX 10.6.7 copy photo to network drive very slow preparing file

I want copy photo to folder ID Photo Server 2011 on NAS ***(folder ID Photo Server 2011 have photo about 3000 pic.) When I drag file to ID Photo Server 2011 it preparing file very slow.

I am having the same problem. It just started a week ago. I'm a photographer. I would take a data card full of photos and copy them to a folder on my desktop. I always make sure the file volumes match after the transfer is complete. Then after I eject the compact flash drive, I check the file volume again on the desktop folder before I reformat the flash drive.
In this case when I went back 24 hours later the folders were emissing files or totally empty. I just lost two days of event shooting and I'm going to have some really ****** off customers if I can't retrieve the files. There are roughly 700 digital photo files that are just gone. I don't even know the exact file names because I delete some images as I shoot.
Is there any way to see if these files are still on the drive and just missing their file names?

Time Capsule external drive very slow for backup

I am experiencing very, very slow backup times using an external drive attached to my Time Capsule. When I recently added a 3 TB Rocstor external drive to my mid-2011 iMac using FireWire, I included it in the drives to be backed up. The internal 2 TB of storage in my Time Capsule was no longer enough, so I plugged a 4 TB WD My Book Studio drive into the Time Capsule's USB 2.0 port and specified this WD drive as the only backup storage. The first backup took almost 48 hours. Now the Time Machine keeps trying to back up about 400 GB - 500 GB (though there haven't been any changes) and is transferring about 400 KB/sec over Ethernet from my iMac to the Time Capsule's external drive. What am I doing wrong? (I recently upgraded the iMac to OS X 10.10.2 Yosemite.)

Frankly, I have no way to gauge your network setup, so I can't really tell you what you should expect. I can tell you from my own experiences using a local network based on a 3rd Gen. Gigabit Ethernet AEBS that using Ethernet the average throughput (not interface) was in the neighborhood of 16-20 MBs/sec. The average throughput for a USB 2.0 drive connected directly was about the same.
This works out to an average throughput of around 60 GBs/hour. Depending upon file sizes and number of files being transferred a USB 2.0 drive might reach 100 GBs/hour, but that is a rare outcome. The USB 2.0 drive interface speed is about the same as FireWire 400 - 400 Mb/s or roughly 50 MBs/sec. This is what I know from measurement. Do not expect Ethernet to be any faster for throughput.

AirDisk vs. Networked drive very slow

hi everyone,
have been searching and browsing the forum around this topic but couldn't find a real answer or fix to my "problem" yet.
i'm just really curious about why an external drive hooked up to the airport extreme is about 10 times slower than a harddrive shared from another mac using wifi through the same base station.
setup is as follows:
LaCie BigDisk Extreme shared through a G4 Cube (love) > Ethernet Hub > Airport Extreme (Gigabit Ethernet) versus WD MyBook Premium II > USB 2.0 > Airport Extreme (Gigabit Ethernet)
i'm accessing both from a macbook (black one, latest model) and a macbook pro (latest model) - and transferring a file from the disk hooked up to the cube is about 10 times faster than the same file (or any other comparable in size) copied from the drive hooked up to the airport extreme basestation.
it does not make ANY difference at all if i set the basestation to any of the 4 options you find in the wireless radio mode options (802.11n 2.4/5GHz - b/g compatible), so i'm really curious if this is just a firmware issue (7.2.1) that will get fixed further down the road or if i'm doing something really stupid, or... if this is a half-baked feature never to be living up to the promise made?
anyone? any ideas?
thanks,
norbert

A Western Digital My Book Live. I've spent two days trading emails with a very nice person from the company who has asked me to try various fixes and nothing has worked. They are perplexed as to a solution and I'm close to pulling the plug on this endeavor.
I have an imac connected to a switch with the my book live and the imac connected to the switch. Switch connected to the wall ethernet jack that connects to the time capsule/airport device. The time capsule is connected to the verizon fios router/modem. I have the verizon wireless signal turned off. Everything else in the house has connected and has been working fine for a year. This network hard drive takes forever to access and is very slow.

External USB Drive very slow to Mount

Hi, I have an iBook G4 and I recently bought an 80GB external USB 2.0 drive.
The problem I am having is that it takes a long time for the drive to mount. After I plug it into the USB port it takes 2 - 5 minutes for it to actually show up on my desktop. On occasion it doesn't even mount at all and I have to unplug and re-plug the USB drive and wait another 2- 5 minutes with my fingers crossed. Once it does mount it works just fine. I can transfer back and forth, run video off of it and run apps off of it. If I have the drive plugged in before I boot up I see the drive mounted after I log in, also just fine.
My question is how can I get rid of that initial delay? What am I doing wrong?
iBook G4 Mac OS X (10.4.6)

The problem lies with occasional dropouts that can corrupt the library's database files if they are being written to as the time of dropout. It's the nature of wireless networks. If you have a very strong signal throughout and are willing to take a chance then go for it.
But as for the speed, it must be iPhoto 11 and it's complexity causing the slowness. I had tried using a library on an EHD connected to my iMac from my laptop wirelessly with iPhoto 7 or 8 and it was pretty fast. I think it was 7 before faces and places came into being.
Send a feature request to Apple via http://www.apple.com/feedback/iphoto.html to improve wireless performance, etc.
OT

IMac with SSD and Hard drive very slow startup time

I have a new mid 2011 iMac with a 250gb SSD drive and a 2TB drive. All are from Apple as BTO options. When I first used the iMac my typical startup time from the hardware check chime to desktop was typically 12 seconds. Something, somehow has been changed because now it takes over one minute to boot up from the SSD. After the chime I hear the fans running and also the 2tb drive. After about 20 seconds I hear the hard drive spin down and then after another 20 seconds it starts up again. Once it starts up the boot up sequences contiunes and returns to the desktop. After this the iMac perfprms as normal. I have tried running disk utility from the recovery partition. I have also reinstalled Lion as well from the recovery partition and neither of these change the outcome.
When I first got the iMac I used time machine to restore from a previous machine into the 2tb partition and then went into advanced options in System preferences>Users&Groups to point to my home folder on the 2Tb drive rather than the default one on the SSD. That was working fine until I discovered software problems with both Preview and Textedit where they would not start up with this arangement. I then repointed my home folder to the default one on the SSD which cured this issue with these programmes leaving my data remaining on the 2Tb drive. Since doing this I have had the one minute boot up problem.
Can anyone offer any advice as to how I may overcome this problem and get my iMac back to starting up in twelve seconds from the SSD as it did before. Any help would be appreciated on this topic.
Thanks.

Where do you maintain your Home folder - on the SSD or on the HDD?
If you want to do a clean install (from scratch) then do the following:
Install or Reinstall Lion from Scratch
If possible backup your files to an external drive or second internal drive.
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Erase the hard drive:
Select Disk Utility from the main menu and click on the Continue button.
After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Erase tab in the DU main window.
Set the format type to Mac OS Extended (Journaled.) Click on the Erase button and wait until the process has completed.
Quit DU and return to the main menu.
Reinstall Lion: Select Reinstall Lion and click on the Install button.
Note: You can also re-download the Lion installer by opening the App Store application. Hold down the OPTION key and click on the Purchases icon in the toolbar. You should now see an active Install button to the right of your Lion purchase entry. There are situations in which this will not work. For example, if you are already booted into the Lion you originally purchased with your Apple ID or if an instance of the Lion installer is located anywhere on your computer.
Before you go to the extreme of the above would you do this:
Open Activity Monitor in the Utilities folder. Select All Processes from the Processes dropdown menu. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time, then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Just in case your system slowness is due to something eating up CPU time. Oh, and if your system is brand new check the upper right corner of the menubar for a "dot" inside the Spotlight glass. This means Spotlight is indexing the drive. Until it finishes your system will be quite sluggish.

Brand new i7 - Memory and Hard Drive Very Slow

I just purchased a new brand New Mac Book Pro 15" i7 2.67 Ghz system with 8 GB of memory (1067 Mhz) and 500 GB 7200 RPM (I wanted to do the 512 GB solid state but way too pricey at $1300). I installed Windows 7 64 bit with boot camp.
I am not impressed with the speed, it is about the same speed as my 2.5 year old Lenovo Core 2 Duo T7800 2.60 Ghz laptop - although I upgraded this the lenovo laptop had a 128 GB solid state drive as the boot drive, and a 500 GB as the 2nd drive, and 8 GB of 667 Mhz.
Also the battery only lasts for 2 hours with Windows... and there is no way to swap in a different battery, is there? I have long flights 5 hrs and now I won't be able to work for much of it...
anyway, is there anything we can do to make this machine quicker? I am thinking of returning this and going back to Lenovo. I would like to start using OSX but I am a windows developer so I need a fast windows machine.
thanks
dan

...anyway, is there anything we can do to make this machine quicker?
Yes — Put a solid state drive in it. Then your comparison with the Lenovo will have some meaning. It doesn't have any now, because you're comparing a conventional hard drive to a SSD.
Regarding battery life: Apple's battery life testing is all done running OS X. Windows is an energy hog, and you can't hope for anything approaching Apple's maximum run-time estimate if you're using Windows. To get the longest running time possible, turn off wifi and BlueTooth, disconnect all bus-powered peripherals, dim the display as far as you can stand, turn off keyboard backlighting, don't use the optical drive, and if you're browsing the web, avoid sites with Flash content. Avoid very demanding applications, too, because in addition to forcing the CPU/GPU to use a lot of power, they also generate extra heat and thus require the fans to run faster, using still more battery power.
An airline power adapter might be a worthwhile investment if you tend to be on flights and in seats where power outlets are available. Failing that, you may want to look into an external auxiliary battery pack, because you can't swap internal batteries:
http://www.batterygeek.net/Batterygeeknet_MacBook_MacBook_Pro_Battery_Packss/78.htm
http://www.hypershop.com/HyperMac-External-MacBook-Battery-and-Car-Charger-s/91. htm
http://www.quickertek.com/products/macbookprocharger.php
In OS X, you can improve battery life further by using gfxcardstatus to prevent apps from automatically invoking the more powerful, energy-hungry NVidia GPU.

USB copying to flash Drive very slow suddenly!

hi
i just got my brand new macbook and the ipod touch and so far i love my new mac experience at first i copied my music( 5 GB) on a flash drive and copied it to my macbook and ipod since they both r 2.0 usb they did it pretty fast!
later i was copying the same stuff to the same flash drive and it took me 2 hours to do that the ipod still syncs at a good speed but i don't know if the problem is in the drive or the laptop
i have the same problem on my windows xp machine which has 1.1 usb but the it's much slower than it's supposed to be!
i've searched the forums and other guys have the same thing but no solution !
i swithced to mac to get over windows problems but i'm starting to get disappointed!
any help would be appreciated and plz give me some advice on how to handle the new keyboard! and anything mac
thanks !

I have been experiencing the same problem with an Intel iMac 17" here. I use a variety of external powered hard drives and flash drives via USB. I notice last month that transfer speeds had dropped considerably. That and the fact it had been a year or so since I had last reinstalled prompted me to completely wipe out and reinstall the OS (10.5).
After a complete erase and install, with all current updates applied as of this date, the problem still persists. For example, I have my iTunes library on an external self-powered hard drive. Playing songs is fine, but video is unwatchable. Just now, I attempted to copy a movie file (approx. 700 mb) to a USB flash drive. The reported transfer time was 5 hours!! This is true across the board for me, no matter how the configuration is, be it devices connected directly to the machine's own USB ports or through a powered hub, having self-power or powered through the port.
This problem has only started for me in the last couple of months, with regular updates applied as they came out. Resetting the SMC has also not worked.

Download to flash drive very slow

Downloading to a USB flash drive (2 attempted: Sandisk Cruzer and Kingston, both with plenty to free space) has always been slower than other transfers (ie, HD to HD, HD to Firewire HD), but suddenly transfer rates plummeted from a few minutes for 50 MB to well over an hour. I tried restarting alone, ran Applejack on a second restart, nothing. Folders downloaded contain jpg images, pdfs, and MS doc and docx files, nothing unusual, and pretty much the exact same folders that were already on the drive. I was updating them to include a few current files. Incidentally, after none of the above worked, I tried deleting one of the folders I was replacing (and emptying the trash) before transferring the folder to the USB drive, with no success.
This has never been an issue on this same Power Mac g5 running the same everything and using the same 2 flash drives (I keep them as supplemental backups of current data).
Anybody have an idea why the transfer rate would slow this much?
thanks

Growl has been a big problem in the past a few times.
Show Hidden Files 1.0...
http://www.macupdate.com/app/mac/29096/show-hidden-files
Hidden Way is a toggle for hidden files view in Finder...
http://www.macupdate.com/app/mac/25716/hidden-way
Show hidden files in OSX Finder
Open the Terminal and type or copy/paste:
defaults write com.apple.finder AppleShowAllFiles -bool true
Reverting to the default of NOT showing hidden files:
defaults write com.apple.finder AppleShowAllFiles -bool false
*Restart or Force Quit Finder required to take effect.*
http://www.apple.com/downloads/dashboard/developer/hiddenfiles.html
http://www.burobjorn.nl/blog/?p=96
Finder Force Quit, or restart required to take effect.

Ejecting USB drives - very slow

Since updating to Yosemite, my brand new iMacs (work machines) are all noticeably much slower ejecting USB flash drives. Really slow. These are new, top spec iMacs with clean installs and pretty empty harddrives.
Anyone else noticing this?

I was using my girlfriends USB 128MB stick last night, with no red light showing (well, not that I noticed), then when i dragged it to the ejector/recycle bin, the red light came on constantly (I presumed to tell me that it was ready to remove). I waited 5 seconds to see if it would go out but didn't.

Gigabyte Marvell sk98lin driver very SLOW------

Hello,
I have been using mainly debian based distros and all have been working to my ADSL capacity about 160KB download when updating packages etc.
With ARCH it seems I get if I am lucky about 20K but varies wildly.Is this a driver problem, config problem or slow servers?
Are there Arch mirrors that may be quicker?
Sydney Australia?
I am really getting to like the Arch experience and solved a few problems by running Archie and working out why it would work and Arch wouldn't.
Still have no sound? SBlive value card.
Any help greatly appreciated.
Cliff

Beavis wrote:
Hi,
Not sure why your downloads are so slow but all I can suggest is to try using the skge module instead of sk98lin. This module is available in kernel 2.6.13.2 but not too sure about earlier kernel versions. The skge module is a newer version of sk98lin and is supposed to offer better performance but does lack some of the features of the sk98lin module.
If you look in /etc/pacman.d/ you will find a number of files with each containing links to different Arch mirrors, just modify each file in turn by moving your closest mirror to the top of the list.
I run a SBlive card too and I set it up using this article in the wiki, http://wiki.archlinux.org/index.php/ALSA_Setup
I might give that a try thanks for the quick reply.I don't know why it is so slow when the other distros are ok.Kanotix is my current main distro great hardware support.
I guess it is a silly question but what is the best way to upgrade the kernel 'using pacman'? pacman -S kernel ?
Thanks for the info on the mirrors couldn't find it anywhere.
Cliff

Sparse bundle mounting from NAS drives very slow

I have an unusual problem, where one of my user accounts has recurrent trouble mounting large sparse bundles located on NAS drives. The sparsebundles are hard drive clones, 200-250GB sized. NAS connected by gigabit ethernet.
On trying to mount an image with Finder, there is a pause, lasts 2-3 minutes, then the image mounts, and quite often Finder then goes unresponsive. Relaunching Finder then seems to fix the problem, at least temporarily....
Unmounting the sparsebundles takes 2-3 minutes also....
Two other user accounts I have, one on same hard drive as the affected one, work well, the same sparsebundles mount/unmount instantly....
Yesterday deleting Finder prefs fixed the problem, but then today the problem was back.
This is obviously a Finder issue, connectivity to the NAS in question is fine for other files, even for a 300GB .dmg image, just sparse bundles seem affected....
Any ideas?? It's driving me nuts now!

I too am having this issue. Intel / 10.5.8 attached to an SMB share from Ubuntu Linux.
I ran a test of various image types, and while Sparse Image works, Sparse Bundle fails. Here are my logs. Happy to do some testing and log posting if anyone has a test theory to try.
9/5/09 2:20:29 PM Disk Utility[1822] Disk Utility started.
9/5/09 2:22:38 PM Disk Utility[1822] Creating Image “test1-rw-disk-image.dmg”
9/5/09 2:22:38 PM Disk Utility[1822] Initializing…
9/5/09 2:22:38 PM Disk Utility[1822] Creating…
9/5/09 2:22:39 PM Disk Utility[1822] Formatting…
9/5/09 2:22:39 PM com.apple.KernelEventAgent[37] KernelEventAgent: sysctl_queryfs: No such file or directory
9/5/09 2:22:39 PM Disk Utility[1822] Attaching…
9/5/09 2:22:40 PM Disk Utility[1822] Finishing…
9/5/09 2:22:41 PM Disk Utility[1822] Image “test1-rw-disk-image.dmg” created successfully.
9/5/09 2:23:21 PM Disk Utility[1822] Creating Image “test2-sparse-disk-image.sparseimage”
9/5/09 2:23:21 PM Disk Utility[1822] Initializing…
9/5/09 2:23:21 PM Disk Utility[1822] Creating…
9/5/09 2:23:21 PM Disk Utility[1822] Formatting…
9/5/09 2:23:21 PM com.apple.KernelEventAgent[37] KernelEventAgent: sysctl_queryfs: No such file or directory
9/5/09 2:23:21 PM Disk Utility[1822] Attaching…
9/5/09 2:23:23 PM Disk Utility[1822] Finishing…
9/5/09 2:23:24 PM Disk Utility[1822] Image “test2-sparse-disk-image.sparseimage” created successfully.
9/5/09 2:24:04 PM Disk Utility[1822] Creating Image “test3-sparse-bundle-image.sparsebundle”
9/5/09 2:24:04 PM Disk Utility[1822] Initializing…
9/5/09 2:24:04 PM Disk Utility[1822] Creating…
9/5/09 2:24:04 PM Disk Utility[1822] Formatting…
9/5/09 2:24:05 PM Disk Utility[1822] Finishing…
9/5/09 2:24:05 PM Disk Utility[1822] Unable to create “test3-sparse-bundle-image.sparsebundle”. (Operation not supported)
9/5/09 2:24:05 PM Disk Utility[1822]

Fusion drive very slow

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