Questions tagged [ssd]

Solid State Disk, a generic term for computer storage devices that have no moving parts and do not involve a "hard disk". A hard disk, in contrast, is a device incorporating a spinning platter or platters that store information magnetically.

166 questions with no upvoted or accepted answers
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Change APFS Volume to case sensitive

I have a macbook pro with 1TB internal glued flash drive, of which around 600GB are full. I would like to change the volume format from APFS (case insensitive, encrypted) to APFS (case sensitive, ...
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'System' occupies 100 GB - why? How can I reduce the amount of data? (macOS 10.13 High Sierra)

Any idea why is system taking so much space? Also the free space + used space on my system is not showing correct data. It shows available space is 154.76 GB and when I add the used space (171 GB) it ...
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1k views

No space left on device while 50gb is available

I have a problem with my free space. macOS started to run slow, all apps reports that there is no space of device, while I have a lot. From System Information: Available: 53,51 GB (53 506 232 320 ...
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41 views

About this mac → Storage not showing anything

The storage information is not shown under About this mac → Storage, but the same is available in Disk Utility. I tried to turn my MacBook off and on again, but to no avail. I have a mid 2012 ...
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596 views

kernel_task writes huge amounts of data to disk (> 1TB) - how to diagnose?

My MacBook (2016 with TouchBar) running macOS 10.13 has a 512GB SSD. Looking at the activity monitor after a couple of weeks of uptime (most of it spent in standby), kernel_task shows 1.43TB (!) of ...
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421 views

As High Sierra does now support 512 byte block sizes, are Samsung 960 NVMe SSD fit in a Macbook pro retina 15 mid-2015 with a Sintech adapter?

I know that there is already some topics on this forum about that but I didn't find a clear answer or if someone have tested it since then. Do MacBooks support NVMe SSD drives via the use of a ...
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596 views

Folder With Question Mark After SSD Upgrade And OS Reinstall

I have a problem with my friend’s iMac (mid-2010) that I'm fixing. I’ve replaced his hard drive with an SSD (the Samsung 850 evo) and after reinstalling the OS via recovery mode (cmd+R) it shows a ...
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254 views

OS X prompts for password when connecting unencrypted volume and Disk Utility repair does not work

I have an external 250 GB SSD which now, when I connect it (via USB) to the computer, causes the OS (10.10.3) to prompt me with: Enter a password to unlock the disk The problem (well, a problem) ...
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269 views

SSD Issue - TRIM related?

I'd bought an SSD that I'd put in my early 2011 13" MBP to make a DIY Fusion Drive in conjunction with the original 500GB HDD. A few weeks ago, I enabled TRIM (using TRIM Enabler). 5 days later, the ...
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2k views

Fusion Drive with SSD and HHD Hybrid Drive (e.g. Seagate Momentum XT 750 GB with 8 GB SSD): Good idea or plain nonsense?

I’ve seen numerous instructions on how to setup a Fusion Drive from your own SSD and HD, e.g. Can I make a DIY Fusion Drive? Very silly question: How would a Fusion Drive built from an SSD and a ...
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34 views

Why do I have 2 drives with the same used space?

this is a weird one. I just bought a 2nd hand macbook retina and turns out that when I re-installed macOS, the storage dialog showed up a 2nd drive. The very first thought was that the main drive is a ...
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48 views

Replaced SSD won't boot

I have cloned the HDD from an old MBP (Early 2011) to a Kingston A400 SSD. When booting from USB it all works fine, however once installed internally when booting it shows a no entry sign 🚫 (I assume ...
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105 views

How to use Time Machine to backup system from ssd

I added an SSD to my Mac mini and installed macOS Mojave on it. (it is already installed on the HDD) I notice that Time Machine is still backing up from the HDD. How can I change the source drive for ...
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34 views

trying to erase external SSD that is only seen in terminal

I have a SSD drive that was removed from a MacAir and placed into an eclosure. I must have screwed up the directory by deleting files from the drive and not dismounting it because the drive is ...
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730 views

Mid 2015 retina MacBook Pro: Startup slow after SSD Upgrade

I've recently upgraded my Mid 2015 retina MacBook Pro's original 500 GB SSD to a 2 TB Samsung EVO 970 NVMe M.2 coupled with a recent model Sintech SSD adaptor. I am running macOS High Sierra 10.13.6. ...
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How to rebuild a GUID partition table in a APFS file system SSD?

I looked at other answers for similar questions but not one works for me (maybe because the APFS). I have an external 1 TB SSD with two APFS volumes. Somebody plug my hard drive into a Windows 10 PC ...
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27 views

Tell age of SSD by using iostat?

I did iostat -Id disk0 on my MacBook Pro (MacOS Sierra) and found the total number of reads/writes done on the SSD. Is it true that this is indicative of the age of the MacBook? Should a new ...
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295 views

No Reboot on MacPro using a new Samsung 860 EVO SSD

From the standard hard disk I can start, restart, and shutdown with no issues. From the new Samsung EVO 860 I can start and shutdown, but I can NOT restart. It freezes with a black screen. If I ...
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17 views

Identify cause of graphic errors

I have a late 2006 iMac with Intel Core2Duo, 64-bit (32 bit EFI) with some upgraded parts: 2*2GB RAM (only 3 GB can be used) 100GB SSD which has been running for 3 years now with trim-enabler In the ...
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662 views

SSD RAID card in Mac Pro (Mid 2012) 5,1

question with two parts: Is there any card that has PCIe x4 with AHCI interface (to be bootable on MAC Pro) that takes two M.2 SSD cards? And if teher is does it matter if the SSDs (if the card ...
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625 views

All data easily recoverable after Disk Utility erase on 3rd party SSD?

It's come to the time to upgrade and therefore sell my old laptop. Its a mid-2012 13″ MacBook Pro with an Intel Core i5 and 4GB RAM. Originally it came with a 500GB hard drive but I have upgraded this ...
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2k views

sudo trimforce disable not working

Not so long ago, my early 2013 MacBookPro used to boot in a sweet 13s. Since I updated to High Sierra, this has turned into an ugly 58s. I read here and there that the startup slownesses in high ...
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695 views

Time Machine won't back-up to external hard drive, any way to fix this?

Problem When I try to make a back-up using time machine, the back-up gets to about ~500 MB and than halts. The following error is given: An error occurred while copying files. The problem may be ...
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613 views

SanDisk SSD Extreme 500 not detected by macOS High Sierra

I have an external SSD device which is randomly mounted in my MacBook Pro with macOS High Sierra (anyway, I had this problem even in Yosemite, it is not OS related). I've formatted the SSD with ...
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3k views

APFS on RAID: recommended course of action?

I recently upgraded my Mac Mini Server's dual SSDs and found myself needing to re-create the RAID-0 array from scratch. (I am running the mainline High Sierra 10.13.1 on a 6,2 MacMiniServer from 2012.)...
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403 views

Can I split an internal FUSION Drive (HDD/SSD) into an HFS+ and APFS partition?

I have a late 2014 27-inch 5K Retina iMac, with a "Fusion Drive" composed of 1TB HDD and a 120GB SSD. This particular Mac has Yosemite (10.10.5) installed. In order to do some testing of High Sierra,...
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36 views

MacBook Pro SSD issue

I brought new SSD 240 GB and I using this SSD by Caddy. The SSD is showing in Finder. I can format it. The SMART Status is verified. But when I try to install any OS or restore my OS, it goes into ...
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250 views

mSATA vs M.2 speed

I have a Mac Pro 2009 (4,1). I have installed an mSATA SSD using an Addonics PCIe adapter. I am wondering how this setup would compare with using an M.2 SSD instead? Is the M.2 supposed to be ...
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426 views

SSD not being recognized by ubuntu linux 14.04 and mountain lion machines

My question is as the title suggests. I have extremely important data in my samsung evo SSD that was in my macbook, and I got too overconfident while doing some repairs and didn't back it up..:( So ...
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266 views

Merge existing HDD and SSD into Fusion drive

Some time ago I split the Fusion Drive into 2 parts, SSD and HDD accordingly. Now I decided to return to fusion drive, but I have some data that I would like to keep. Is it possible to merge drives ...
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177 views

Moving or creating Recovery Disk with dual internal SSD with RAID

I have removed my optical drive and installed a second SSD in its place. To do this I partitioned the first SSD to hold macOS Sierra. The other partition was RAID0 with a second SSD. I seem to have ...
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365 views

Macbook can't read Macintosh HD

I use a late 2013 macbook pro 13 inch retina display. I tried formatting my internal ssd hard drive (macintosh HD) after it started freezing forever whenever I tried to log in. I tried all the ...
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0answers
305 views

MacBook Pro Retina 13" Late 2012 SSD Upgrade

I've done some research before, which led to the installation of an SD card adapter, together with a 128GB microSD card, which doubles the available storage capacity (original SSD storage was 128GB). ...
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43 views

CMD+R wil not start Recovery HD - Fusion Drive

I have recently my Macbook Late 2009 with a SSD crucial 500Mo (Data doubler). I made a Fusion Drive with no problems, then I re-installed el Capitan again with no issue (except I tried to re-install ...
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133 views

Available SSD disk space shrinking within seconds

My SSD's available disk space of my MacMini Late 2012 is shrinking within seconds. CleanMyMac says 'Others''s size is increasing. I have no idea what is happening and am wondering why there is so few ...
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449 views

Cannot open/save files on El Capitan. Is this a permissions problem?

I have some issues with my file system on my MacBook; I am running OS X El Capitan with an SSD. For instance, if I make a screenshot, save the file on my desktop, and then immediately try to open the ...
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127 views

Migration Assistant problem

Replacing a failing HD with an SSD in an early 2011 MBP 13". Made a Time Machine backup to an external USB HD with original disk, installed the SSD, installed OS X from the install DVD that came with ...
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0answers
27 views

Can I control which drive application and OS updates are downloaded to?

I have a small SSD as my main drive, and a large regular drive for data files. Noticing that my mac is currently downloading an XCode update of about 2.5Gb and an OS update of about the same size, I ...
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934 views

Reclaiming Disk Space on my Mac

I've got a MacBook air with a 128 gigabyte SSD, and it reminded me again this morning that I'm almost out of storage space. What caches are safe to delete, and what other places are good to reclaim ...
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66 views

How to use Time Machine to back up a partitioned drive?

My MBP was originally a single SSD partition, which I backed up with Time Machine to an external USB HD. I created a new partition on the SSD for Yosemite, and am running the MBP on 10.10, although ...
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464 views

Why is cloning my MacBook Pro slower since I upgraded it to SSD?

Last week I replaced the 512GB 7200rpm HDD in my Mid-2010 MacBook Pro with a 512GB SSD (Crucial 550). The performance improvement in most areas is welcome, but one thing is now considerably slower: my ...
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2k views

MacBook Pro will boot only after a SMC reset

I replaced the hard drive in my MacBook Pro (mid-2010) with a SSD one. I installed Mac OS X 10.9. At first the installer wasn't able to find the new SSD drive, because of a error: "SerialATAPI device ...
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344 views

OS X breaks if I apply HFS compression to the whole volume. What do I need to exclude?

OS X breaks if I apply HFS compression to the whole volume. (It won't boot.) What do I need to exclude? I've been able to compress large parts of it, but then I had to restore after I compressed ...
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164 views

Can't log in as user. SSD drive from broken macbook inserted into a new macbook.

Pre-story: An older 2009 Macbook Pro 13"’s logic board has broken and I’ve got a working 2010 Macbook Pro 13". Old Macbook was upgraded with SSD drive that was used as a system drive and home folder ...
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1k views

Fusion Drive Setup: Possible to force the HDD to spin down as long as your reading from/writing to the SSD?

I'm considering to replace my optical drive in my MacBook Pro with an SSD. When using it as separate Volume, the advantage is that you can spin down the HDD, thus reduce noise and first and foremost, ...
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406 views

MacBook Pro mid2010 SSD optibay upgrade - SandForce?

I want to replace Superdrive in my MBP mid 2010 with Otpibay SSD. I have 2nd revision (rev 2/rev B) of mother board replaced due to GPU problems. Which drive should I consider? I would like to omit ...
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1answer
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How to resize (grow) APFS partition that is at the end of the drive?

[new info below post] -- I'm having trouble resizing an APFS partition on the 240Gb SSD in my Mac. I want to make all space available to the system partition "Macintosh SSD". Output of diskutil list: ...
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25 views

Problems with bless tool

The computer is an early 2015 13" MacBook Pro. Two weeks ago we sent my spouses 15" in for battery recall, and bought an OWC Aura Pro to replace my internal 1GB SSD (we SuperDuper'd her 15" MacBook's ...
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19 views

EFI missing, Question folder appears, Mac SSD appears and disappears, what do I do?

Setup Macbook Pro retina 13 A1502, SSD 128Gb Running Yosemite, but currently doing the update for high sierra. Problem: Question marked folder appear after I left it for 2 days, battery run out (left ...
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Partition external SSD (Win10 already installed) for Mac

My situation: I successfully installed Windows 10 on a Samsung T5 external SSD (size of 1TB) which I can boot into using my MacBook Pro 13" (2017 model w/ 4 Thunderbolt 3 ports). Under Windows, the ...