Questions tagged [storage]

includes any question relating to managing storage or storage space

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72
votes
6answers
218k views

“System” storage on macOS Sierra is 470GB!

My Mid 2012 MacBook Pro 13" says I suddenly ran out of Storage space. My Mac barely has any data and my upgrade to Sierra was a clean install. Nothing was ported from previous backups. If you see ...
71
votes
2answers
237k views

What is Mobile Sync - Backup and why is it taking so much space?

I was checking my directory and found out that the Folder Backup in Library > Application Support > Mobile Sync > Backup, is taking 13GB of my Harddisk ... What is this and why is taking so much space ...
31
votes
5answers
406k views

iCloud has space but iCloud Backup says that I don't have enough to complete a backup

I use 120 MB of iCloud storage space for iCloud Backup of my iPad & iPhone. There is still 4.8 GB free from 5 GB, but I have a notification in iPad's backup window that I'm lacking space to back ...
26
votes
3answers
219k views

Is “flash storage” the same “SSD”?

I'm looking to see if the two are interchangeable and if not what the differences are. If the two in fact have a difference, perhaps adding devices or cases where each are normally used over the ...
25
votes
3answers
71k views

What are the “sleepimage” and “swapfile” documents?

I was using Disk Inventory X and found a file called sleepimage in /private/var/vm/ It takes up 4 GB! I also found numerous other files in the same folder called swapfile0 swapfile1, etc. What are ...
23
votes
5answers
30k views

macOS not showing the actual free space

I'm in the process of installing Windows 10 on my Macbook Pro (macOS 10.13.4/17E202, 256 GB of storage, no partition), but Boot Camp says I need at least 40 GB of storage. So I freed up some space by ...
22
votes
5answers
62k views

Using my own server instead of iCloud

I am currently paying like a dollar a month for 20 GB iCloud storage, but I am just now building a new computer and am hoping to install an Amahi server on it so that I can have my own 'Dropbox' type ...
21
votes
5answers
15k views

One mac, Two or more storage devices - how to divide things?

We're at a crossroads where most Macs now have space and connections to contain two storage devices. SSD are fast, low capacity and expensive - HDD are in comparison slow, huge and cheap. Both iMacs ...
19
votes
3answers
55k views

Can there be two separate Time Machine Backups on the same external drive?

I'm interested in buying an external hard drive. I'd like to know whether if it's possible (and simple if so) to have two separate Time Machine Backups from two different MacBooks at the same time?
19
votes
10answers
93k views

Why iOS settings and iTunes report the storage usage differently?

My iTunes shows me that there is about 7 GB of free space, while iOS settings shows me that there is only about 80 MB of available space. How do free space and available space differ? Additional ...
17
votes
4answers
157k views

iCloud storage full: “Not Enough Storage”. Backups exceed 5GB

Just like everyone else, I get the notification that my iCloud is full and no backup can be made. iOS gives me the suggestion to upgrade my storage on my iCloud account. Because I only want to store ...
17
votes
6answers
77k views

Photos taking up storage on iPhone when I have no photos

Problem from iOS 10.1.1 to 10.2.1. I have no photos at all on my iPhone yet in settings it says my photo library is taking up ~200MB of space. The number of space being taken up keeps changing ...
16
votes
2answers
91k views

Can I store and run applications on an external drive?

I am thinking of getting a this MacBook but the hard drive space is not sufficient. I was wondering if I bought an external hard drive for it would i be able to download apps and things onto it.
16
votes
2answers
5k views

WhatsApp using huge space on my Mac SSD

My parents gave me a MacBook for Christmas with a 256GB SSD and a few days ago I notice I only have 40GB left on the SSD. I tried researching this and according to this question (How can I figure out ...
15
votes
5answers
264k views

Reduce the storage space taken up by “System” on my iPhone 6s without restoring and setting up iPhone as new

I have an iPhone 6s with iOS 11 and I have just noticed that a large amount of my iPhone's storage space being occupied by "System" (12.27 GB). I have tried the answers for the iPhone 4 explained in ...
14
votes
5answers
3k views

How is iPhone Storage automatically cleared up?

I'm using an iPhone 6s with iOS 10. I have a few apps, but most of my space is taken up by photos and videos. Now I do run low on memory, sometimes I have just 500MB left, but I just let it be. If I ...
14
votes
5answers
14k views

Does migrating to Apple's new Photos app actually double my storage requirements?

I was using Disk Inventory X to visualize my hard drive storage and help me find some extra space. It appears that iPhoto Library takes 52.0 GB and Photos Library takes 49.4 GB. Is this a known ...
14
votes
1answer
24k views

Is it safe to delete the content of ~/Library/Logs?

I would like to know if it is safe to delete the content of my ~/Library/Logs folder, because it is taking quite a lot of space. I have found that it should be save, but if there is someone who can ...
13
votes
3answers
19k views

Why the storage of Documents showing wrong in mac?

macOS High Sierra Version 10.13.6 I recently removed some of the large files in my mac and checked the storage. I'm shocked to see this. The Documents folder in which all my files and other folders ...
12
votes
1answer
975 views

Is there there an iOS equivalent of Android's “Delete app storage”?

For many years Android has had a function which allows one to wipe a certain app's data by going to Settings -> Apps -> (select app) -> erase app storage. Most of the time, this will reset ...
12
votes
2answers
533 views

What tools and concepts are good for someone thinking about using HFS filesystem compression?

I have a client with about 60TB of data on multiple HFS+ volumes, attached directly via fibre channel and shared using AFP. We are running around 85% capacity at present, and the budget to expand ...
11
votes
4answers
83k views

camera roll “usage” number does not match photos in the app

I have completely deleted all photos in all categories from my iPad 3 (16G iOS 7) but my settings continue to state that I still have 3.5G "used" (camera roll) in the Photos/camera app. I have no idea ...
11
votes
2answers
7k views

Where does Ulysses store its local content?

I'd like to backup my local content with my own scripts. But I'm not familiar about how OSX apps works. So I can't find where does Ulysses stores its local content. Or generally, where usually does ...
11
votes
3answers
290k views

iPhone shows 1.3GB of photos but I don't have any [closed]

Edited: Orginal question: My iPhone 4S shows that I have 1.3GB of photos but I don't have any. How to empty this amount of space and make it available? I go to "settings" -> "general" -> "usage" -...
11
votes
3answers
172k views

iOS available space doesn't add up

Am I going mental, or does the number in the following image make no sense at all? my top 10 apps seem to account for barely ~15GB, so why is my used space so high? So, I'm calling this a bug. The "...
10
votes
7answers
3k views

What are the best disk cloning tools?

Money is no object. I want a bit for bit perfect copy of a hard drive/partition which is bootable (is either possible) to be used in a backup regimen. I have heard of some tools but your ...
10
votes
1answer
18k views

Delete cached (offline) email on hard drive in Mail program (El Capitan)

How can I delete all cached/offline email from the Mac OS 'Mail' program on my SSD in Mac OS El Capitan? I have 2 Gmail accounts and an Exchange account for work. I'm running out of room on my 256GB ...
10
votes
5answers
66k views

How to fix iPhone 5S reporting excessive space used for Photo Library?

I have an iPhone 5S running iOS 8.1.3. I have removed all photos from the phone (i.e. the Camera Roll is empty). However, under Settings -> General -> Usage -> Manage Storage, it reports that 1.9 GB ...
9
votes
1answer
27k views

macOS Sierra “System” files eating up disk space [duplicate]

macOS Sierra system is using over 200 GB of storage space on my 250 GB hard drive. I've removed Time Machine backups to no avail. How do I free up space? My current usable space being less than 50 GB ...
9
votes
5answers
101k views

iPhone storage doesn't add up?

When I look at the storage section of my phone, the various categories add up to about 2.5 GB of storage, but it says that 11.4 GB is being used. Is there any way to figure out what else is taking up ...
9
votes
3answers
23k views

How do I mount ejected external USB flash storage? [duplicate]

Suppose that we connect our flash USB drive to a MacBook, then eject this storage from Finder sidebar. Now I want to remount this storage without unplugging and replugging it into the computer, but ...
9
votes
1answer
1k views

List all purgeable files in macOS Sierra

I disabled macOS Sierra storage optimizations and the Storage tab in About this Mac still shows over 70 GB as purgeable space. Is there a utility to display which files are considered as purgeable?
8
votes
2answers
1k views

Why does `df` use “Bi” as abbreviation for bytes?

Apparently df is putting "i" after capital letters for each size. This makes sense for Kilobytes/Kibibytes, Gigabytes/Gibibytes, and Mebibytes (if that's what "Mi" stands for). But why would it use "...
8
votes
5answers
38k views

Can I delete things safely from ~/Library?

I am running out of storage space on my 2011 MacBook Air. I was thinking I should clean up before I contemplate adding more storage. I notice though, that while I have ~30 GB in ~/Documents, ~2 in ~/...
8
votes
3answers
8k views

How large is iOS?

Inspired by this I am Ricardo Lopez, Test Manager for Surface RT. After the OS, OfficeRT and a bunch of apps, you will still have more that 20GB. As you say, you can always add an SD card and ...
8
votes
5answers
22k views

Missing disk space on macOS

I have a 250G disk on my Mac with around 100G in use. But the system reports only around 20G of free space. I'm using macOS 10.13.2. I have the problem at least since the upgrade to High Sierra, but ...
8
votes
3answers
34k views

How much more storage than iOS 7 does iOS 8 ACTUALLY use up?

I have read so many reports about iOS 8 installation storage requirements that I've lost count, and none of them even answer this very basic question. “The download is 1.2 Gb… the free space ...
7
votes
4answers
24k views

How do I migrate my wife's iCloud from her paid storage to our family storage?

I've set up Family sharing, and have 2TB of storage (the current maximum). I also pay for my wife's 50GB of storage. I want to migrate that over to use the new 200GB i've allocated to her out of my ...
7
votes
2answers
3k views

My apps are using 3.7GB of storage on my iPad, how can I check which app is using what amount?

Is there a breakdown that can be viewed somewhere?
7
votes
2answers
2k views

Can I move Xcode and Android Studio to SD card

I'm planning to buy a 64GB SD card to supplement the storage on my MacBook Air 128GB (early 2015) I wanted to know if I can move my Xcode and android studio to it as both have them take a significant ...
7
votes
1answer
18k views

macOS Sierra, system size is 180+ GB! [duplicate]

I have a MacBook Pro (Retina, 15-inch, Mid 2014) running macOS Sierra, the Mac started to be slow due to storage. When I've checked my storage I was shocked, from 250 GB I have, 180 GB was allocated ...
7
votes
1answer
461 views

Diagnose disk I/O per application

I have a Leopard system which feels rather sluggish, and which I suspect may be disk-I/O-bound. While I know how to check which app is using CPU or memory (top or Activity Monitor), I don’t really ...
7
votes
1answer
31k views

How much space does macOS Sierra take?

I have a MacbookAir 11" from 2011, with only 64 GB of disk storage. Originally came with OSX Mountain Lion and now I'm thinking on updating it to macOS Sierra. My question is: How much space does the ...
7
votes
1answer
2k views

How can I completely disable OS X Sierra “Storage Optimization?”

I want to be absolutely certain that my Mac won't delete any local data. Not documents, not movies, not music. Nothing. If I leave a 900MB file sitting around for six months or six years and my drive ...
7
votes
2answers
5k views

Is there a maximum number of files supported/recommended in Photos.app?

With the new OS X Photos app released in OS X 10.10.3, is there a hard limit to the maximum number of files (either photos or videos) that the app will support? Or is there a limit to the maximum size ...
6
votes
3answers
179k views

What's the practical difference between a 16GB and 32GB iPhone?

I'm looking to close a deal on an iPhone. What I am having difficulty understanding is the difference between 16GB and 32GB. When does it matter if you have 32GB and 16GB? I understand, of course, ...
6
votes
5answers
26k views

Why can't I resize my existing partition?

I just finished downloading my copy of Lion and wanted to install it on a new second partition. I freed up just over 50 GBs from my hard drive and am now stuck trying to shrink my existing partition. ...
6
votes
3answers
20k views

How can I reduce the 70 GB of storage that is classified as system space on my MacBook?

Am using Mac Book Pro 2017 model 128 GB.Am using ios development purpose. but some time memory management alert. Here my mac using system space above 70 GB. How can i reduce my system space.
6
votes
3answers
16k views

Change default installation location to install xCode

I want to install Xcode in my MacBook Air OSX 10.8.3. The issue is my MacBook Harddisk is just 64GB and it's almost full. I have an external HDD (Formatted to MAC partition) and how can I install ...
6
votes
2answers
515 views

What are the risks with low disk space on a Mac?

I've seen some suggestions about not allowing free disk space to go critically low or ... to have no less than about 15% of your drive's capacity free ... Currently, I've been silencing the "disk ...

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