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.
1,815 questions
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Using FIO to benchmark internal SSD on OSX
I was using this guide to try to perform a large sequential write with FIO: https://chiadecentral.com/fio/
And modified the script at the bottom of the page as follows:
[global]
bs=1024K
iodepth=32
...
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How do I eject an external drive that is indexed by Spotlight?
Similar to this question, I have an external SSD that I use as expanded storage when my MacBook Pro is docked. I would like the contents of that disk to be searchable with Spotlight, so I have ...
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How do I diagnose NVME external drive slowdowns
I have an external USB4 Nvme drive (4TB Crucial P3 Plus NVMe SSD) in a Yottamaster enclosure
If I leave black magic speedtest running I note that the transfer rates appear to fluctuate between legacy ...
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Time machine backup hard drive and external drive fails in prep stage due to 303 error
I've set up my time machine to include an external SSD in its backup. Initially it worked, then suddenly started failing within 30 seconds during the 'preparing backup' stage. Here is what I believe ...
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Install issues - OS X El Cap to blank SSD - Install can't be verified
I'm attempting to install Mac OS X El Capitan onto a blank SSD in my 2009 Macbook Pro but it's fighting me every step of the way.
I've created a bootable USB via my Windows machine following the steps ...
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mds_stores (Spotlight Storage) gone wild after update to macOS 15.1 (Sequoia)
On my M3 Max MacBook Pro (released Nov 2023 and coming with macOS 14.0.1 Sonoma preinstalled), I have never had a single Spotlight issue in its almost one year of life.
Last week, I finally took the ...
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How to install one MacOS per disk on Mac mini late 2014? i.e one macOS in the SSD and another macOS in the hard drive?
What I am trying to achieve:
I have a Mac mini late 2014. From the moment I bought it, inside the Mac mini:
there was a 1TB spinning drive, it is a bigger one.
there is a 121Gb SSD, which is smaller ...
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Does the new M4 Pro chip support USB 3.2 Gen 2x2 standard?
Do the new M4 Pro Mac Mini and M4 Pro Macbook Pro, which now have Thunderbolt 5 ports, support the USB 3.2 Gen 2x2 standard?
USB 3.2 Gen 2x2 supports transfer speeds up to ~2,000 MB/s for SSDs, but ...
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How to reclaim or merge (free space) partition with no identifier in diskutil
After restoring Boot Camp (to remove it), the space hasn't been reclaimed by my AFPS partition and can not be seen in Disk Utility:
The Physical Disk shows the correct size (1.92TB), but the APFS ...
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Corrupted GUID for External SSD
So, I have an External SSD of 2TB. I was unable to mount it after removing it accidentally from my laptop, without ejecting it. Then, I for some reason tried running the command:
sudo asr adjust --...
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Would like to learn how to restore APFS SSD's that have been corrupted
I have three or four Samsung 860 SSD drives, with APFS containers that have gotten corrupted in one way or another (by my efforts to load linux, or to do other things).
It appears that I need to learn ...
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Recover lost disk space (> 270 GB)
I have a brand new Mac with 4TB of SSD and it seems that ~270 GB are lost. I'd like to recover them if possible.
Below is the explanation on how I arrived to that total.
Disk Utility shows the ...
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Installing Catalina on a Macbook Air mid-2013 with a third-party SSD drive
I have a Macbook Air mid-2013. The original SSD drive had Catalina and was working intermittently, so I decided to change it. I acquired a third-party SSD drive of the same size, and the corresponding ...
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I completely erased my early 2015 Macbook Air's internal disk from an external USB macOS, now the macbook is not powering on
MacOS Yosemite (I know it's very ancient!), in my early 2015 Macbook Air was getting unresponsive within 10-20 seconds after every boot, so it had become literally useless. I had somehow recovered my ...
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Time machine transfer: Case Sensitive File systems
The goal is to migrate a user account from a BigSur MacBook to a Sonoma MacBook. A SSD time machine backup was created last night. Migration assistant was invoked and the SSD was selected:
The ...
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APFS filesystem performance is very poor
I am curious why the performance of my logging routines (using O_APPEND) are so poor on MacOS, and did some testing. The performance is quite bad. Is this a known problem with APFS?
These tests are ...
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Retrieving data from an SSD MZ-JPV5120/0A6 removed from 2015 iMac
I have tried a few options, the main one being this device from Amazon.
https://www.amazon.com.au/dp/B07MVYYMVD
Whilst it all plugged in and the LED power lights lit up, it wasn't recognised by my ...
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1 External SSD with OS and all files, used by 2 Macs, possible?
I have an iMac M1 at home, and a Mac Mini M2 at an office, instead of having 2 completely separate operating systems, programs, files, etc I am wondering if it is possible to clone my iMac's internal ...
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Migrating MacOS to external SSD - slow startup
History:
I have Intel iMac 5K 2017 (iMac18,3). It has 1 TB Fusion Drive inside. I never reinstalled macOS since I bought it, just upgraded Sierra -> Mojave -> Ventura. Ventura is much slower on ...
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New SSD only bootable via USB, not SATA
I've been working on a very problematic Early 2011 MacBook Pro. Recently I managed to install macOS Sierra, using another Mac to perform the install. There are lots of other avenues I've been down ...
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Snapshots are too big and constantly fills my SSD!
I keep getting out of space warnings, and the only way to reclaim that is using Daisy Disk. Disk Utility always shows "resource busy". Some thoughts:
perhaps it's possible to decrease the &...
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Macbook Air 2013 - 256GB SSD shows as 1.2GB in disk utility
I have "inherited" a 2013 MacBook Air with a 256GB SSD. The machine was formerly used with Windows 10 but I threw that out, along with the MacOS, and tried to install various versions of ...
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Any way to access Startup Security Utility when Internal SSD dead/corrupt?
We have a 2018 MBP business laptop with an SSD that's died. The support company have declared it is dead and recommended recycling it. I'd very much like to get it booting from an external SSH. FYI: ...
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Unable to erase brand new SSD with APFS [duplicate]
I've been unable to set up a new SSD for a friend. The plan is to use it for the internal drive on their Mac.
Using Disk Utility:
Erase -> Format:APFS Scheme:GUID Partition Map
Two drives have ...
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Third-party backup SSD not appearing
I've been using a third-party (LaCie) SSD for Time Machine backups ever since the HD in my Time Capsule router stopped working. (The SSD is plugged into the Time Capsule which also is my router.)
But ...
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27" iMac 5k VDH002, won't mount other disks
2015 27" iMac 5k with SDD. Diagnostic says "VDH002 issue with storage device" and it won't boot from the internal drive any more. Recovery can't mount any other disks to reinstall.
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Unable to shrink MacOS partition - Sonoma 14.4.1 (23E224)
I am unable to shrink my macOS volume/disk on my Intel 2019 15" MBP with a 1Tb disk to make space (128gb) for installing a linux distro in dual boot configuration.
Disk utility in macOS will not ...
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External SSD refuses to connect with a USB-C cable
TL;DR
Having trouble connecting an external SSD to my 2021 MacBook Pro with Apple M1 Pro via a specific Satechi USB-C cable.
That specific cable does not work on my M1 MacBook Pro but works if I go ...
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Why isn't Mojave using swap despite high memory pressure?
I regularly receive the "your system has run out of application memory" alert, then the dialog box pops up to quickly kill any offending application before the OS crashes.
However, unlike ...
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Looking for external case for SSD from a MacBook Pro 13" 2017 (A1708)? [duplicate]
A friend has an SSD that was removed from a mid-2017 13" MacBook Pro (non Touch Bar, A1708) whose logic board died. She bought a new MacBook Pro, so the 2017 is still nonfunctional. The SSD has ...
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My MacBook A1502 boots slows at USB CR has no interface nub after 1->0 transition
My system
$ sw_vers
ProductName: macOS
ProductVersion: 12.7.3
BuildVersion: 21H1015
My MacBook: A1502
Customizations:
I replaced original Apple SSD with Samsung 2TB M.2 PCIe Gen4 NVMe 980 PRO ...
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macOS kernel panics when many external drives are connected
I recently purchased a 5-bay HDD enclosure that I filled with hard drives. I connected this along with around 4-5 SSDs with NVMe adapters to my Mac mini via a powered USB hub.
I noticed that when ...
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Wrong Folder Sizes - Tried everything
Folder sizes on external drive dramatically wrong, yet system shows correct aggregate size used.
Get info shows 2.56Tb used on drive (out of 4Tb). Yet, 3 folders show about 2Tb, 2Tb, 50Gb. That ...
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Trouble upgrading SSD on 2015 13" MBP
I have a friend who is trying to squeeze a bit of extra life from his aging 2015 13" retina MBP by replacing the factory SSD, which recently bit the dust (flashing folder.) At my direction, he ...
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PCIe SSD not recognized, only when restarting on iMac
I have an iMac 2019,2 that I installed an 2T Aura Pro X2 into the PCIe SSD slot, and I left the original Apple 1T HDD drive in the SATA slot.
I was able to:
Successfully split up the Fusion Drive ...
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Swap memory usage with 64GB RAM installed
Newbie to macOS and I was wondering if it's normal to have swap usage when the system has more than 6 times of available RAM than being used. I have 64GB of RAM installed and the most memory I've seen ...
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Making a second Windows installation on macOS Catalina
I am trying to get a second Windows installation. I want this one to be unable to access the first Windows. I have looked at some threads but I can not understand what I need to do as they are all ...
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MacOS Catalina not working on Samsung SSD from SATA
I have MacBook Pro Mid 2012 whose HDD I replaced with SSD two years back and continue to work with High Sierra until I get end of support few months back.
So, I upgraded my OS to Catalina and since ...
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Is there any way to exploit extra iCloud storage space beyond the size of my SSD?
I have a Macbook with a 500GB hard drive, but I pay for the 2TB tier of iCloud storage.
I'm imagining things like a virtual drive where I could park rarely used files, similar to a photostream which ...
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macOS recommended maximum disk space usage?
I was told by a mac repairman that I should leave about 10% of the disk space empty, otherwise, my SSD and/or the machine would die. Is this true? I've never heard of such a thing in my life.
He also ...
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Synchronizing my iPad photos to my iMac (2017) with an external SSD
My internal SSD drive was getting full so I purchased a plug-in, external SSD.
Will I be able to sync my photos to my iPad’s now that I’ve done this?
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“No space left on device.” in macOS Sonoma 14.2.1 (23C71) but there clearly is 131GB on device. What happened?
Short Story: Why was my MacBook Air showing “No space left on device.” and blocking very simple file writes when I clearly had 131 GB available? And why did it clear up after reboot which then showed ...
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The SSD not showing up correctly in diskutil in recovery
I’ve deleted my Macintosh HD partition and don't know what to do, because the free space isn't showing up in the graphic interface of diskutil.
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External SSD shuts down midway through startup up then crashes. Mini then boots from internal drive
Prior to today this external SSD boot has been functioning for 10 months. I’ve run Disk utility First Aid with clean results.
Suggestions?
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Will it make a difference if I buy a fast SSD disk for time machine?
Since Sonoma, waiting for Time Machine to finish is a hell.
It takes 2 to 4 hours to make a simple incremental hour backup.
I've read that Apple throttles down the backup process.
I have typed this at ...
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SATA based Hard drives/SSDs models that are compatible with the PowerMac G5
My understanding is that the PowerMac G5 series is not compatible with SATA III, so most SATA-based SSDs or HDDs will not work with a G5. I have a 2004-era G5 (PowerMac7,3) and I would like to add an ...
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Time machine drive wiped?
I backed up an old laptop via Time Machine to an SSD ~1 year ago.
Now, I'm trying to browse/restore the files on that SSD, but when I connect the SSD to my current (OSX) laptop, it is not recognized ...
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Unable to run MacOS High Sierra (10.13.6) from an external drive on a 2018 MacBook Pro
I have a 2018 MacBook Pro (MacBookPro15,2) that originally came with Mojave which currently has MacOS Sonoma installed. I have another installation of High Sierra (10.13.6) on an external SSD that I ...
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Unable to partition apfs on internal ssd. macOS high sierra
My internal SATA SSD is formatted as APFS and I am running High Sierra on it. I want to use open core patcher to install Big Sur on a separate APFS partition (I heard there were problems when having ...
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Why does an SSD replacement cause the fan to run more and heating-up?
A couple of months back my MacBook Air’s SSD, which had given indicators of failure, was replaced with the same type, APPLE SSD SD0128F.
Very soon after it was replaced I noticed that the fan was ...
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