User Shares vs. Disk Shares — What's the Difference

The Two Views of Your Files

Unraid can show you your files in two ways at once. Both are real, both show the same actual files - they are just organized differently, like two indexes for the same library.

A user share gathers everything for that share, no matter which drive each file happens to sit on. A disk share shows you the raw contents of one drive - only the files that physically live on that particular disk.

What a User Share Is

A user share is the everyday kind of share - the ones with friendly names like Media and Documents. Its special trick is that it spans all your drives at once.

Say your Media share holds a hundred movies. Some sit on Disk 1, some on Disk 2, some on Disk 3 - Unraid spreads them out as space allows. But when you open the Media user share, you see all one hundred movies together, in one tidy list. You never have to care which physical drive each one landed on.

• One list, no matter how many drives you own.
• Add another drive later and your shares simply get roomier - nothing to reorganize.
• You think in terms of Media and Documents, not Disk 1 and Disk 2.

What a Disk Share Is

A disk share is the other view: it shows you exactly one physical drive, and only the files that actually live on that single disk.

Open Disk 1 as a disk share and you see only the files stored on Disk 1 - a slice of your Media, a slice of your Documents, whatever happened to land there. Open Disk 2 and you see a different slice. Each disk share is a peek at one real drive's raw contents.

• To pull files off one specific drive during a recovery.
• To check exactly what is sitting on a particular disk.
• For certain advanced tasks where one drive must be handled on its own.

Why User Shares Are the Everyday Default

For almost everything you will ever do, the user share is the right choice. It is simpler, safer, and it is how Unraid expects you to work.

Think of user shares as the front door of the house - the way everyone comes and goes. Disk shares are the hatch to the crawlspace: useful now and then, but not how you live day to day.

• Simple to think about - Media is just Media, wherever the files physically sit.
• Grows with you - add a drive and your shares get bigger with nothing to rearrange.
• What your apps expect - Plex, backups, and the like point at user shares.
• Safer - you are far less likely to make the dangerous mixing mistake.

The Real Danger of Using Both at Once

Here is the one thing this entire guide is built around. It is not complicated, but it matters more than anything else here, so read it twice.

Because a user share and a disk share are two windows onto the very same files, copying a file from one to the other confuses Unraid about what is the same file. In certain cases this can wipe the file out entirely - you end up with nothing instead of a copy. It is one of the very few ways to genuinely lose data on Unraid.

When a Disk Share Is Genuinely Useful

Disk shares are not bad - they are just specialized. There are real moments when looking at one drive on its own is exactly what you need.

Notice the theme: these are occasional, deliberate jobs, often done carefully and often during a problem. They are not part of your normal daily use of the server.

• Recovery - if the array is having trouble, reading one drive directly can rescue its files.
• Checking a specific drive - seeing precisely what lives on Disk 2 before you replace it.
• Moving a single drive's contents off before retiring that drive.
• Certain advanced app setups that a knowledgeable person has planned deliberately.

How to Turn Disk Shares On or Off

Whether disk shares appear on your network is a setting you control. If you do not need them, the tidiest, safest choice is to leave them off.

With disk shares off, your PCs and Macs simply will not see the Disk 1, Disk 2 folders at all - which means you cannot accidentally drag files into the dangerous mix. Fewer doors, fewer chances for a slip.

• On the Unraid web page, look for the Settings area, then the file-sharing settings (SMB).
• Find the option that controls whether individual disks are exported (shown) on the network.
• Set disk shares to off (not exported) if you do not need them.
• Turn them on only for the specific job at hand, then consider turning them back off.

How Files Map Onto Physical Disks

It helps to picture what is actually happening under the hood. In Unraid, each whole file lives complete on one drive - files are not chopped into pieces across drives.

When you save a movie to your Media user share, Unraid picks a drive and writes that entire movie onto it. The next movie might go on a different drive. So your Media share is really a collection of whole files, scattered across several disks but presented to you as one neat list.

• If one drive ever fails, only the whole files on that one drive are affected - the rest are untouched.
• You can mix different-sized drives, because each simply holds whole files.
• The user share hides all this scattering and just shows you everything together.

The "Split Level" Idea, Simply

Each share has a setting called split level. It sounds technical, but the idea is friendly: it decides how willing Unraid is to spread the contents of a folder across more than one drive.

Say you have a TV show with a season's worth of episodes in one folder. A tight split level tells Unraid, "try to keep this whole folder together on one drive." A looser split level says, "it is fine to let this folder spill across several drives if needed."

• Keeping a folder together on one drive can be handy for certain media setups.
• A looser setting makes fuller use of every drive's free space.
• For most people, the default is perfectly fine - you rarely need to touch it.

The Allocation Method, Simply

The allocation method is another per-share setting. In plain words, it is how Unraid decides which drive to put the next new file on.

These sound fussy, but they only change which drive a new file lands on - not whether your files are safe or where you see them. The default (often high-water) suits most homes well and keeps your drives reasonably balanced.

Including or Excluding Disks From a Share

Each share can be told which drives it is allowed to use. By default, a share may use any drive - but you can pen it in if you have a reason.

For example, you might keep a Backups share off your newest drive, or steer a Media share onto your larger drives. You do this in the share's settings, with a list of included or excluded disks.

• Leave this at the default (all disks) unless you have a clear purpose.
• Narrowing a share to fewer drives also narrows how much it can hold.
• This is about tidiness and planning, not safety - your parity protection is unchanged.

Reading Files Directly Off One Disk

This is where disk shares earn their keep. Because each drive holds whole files, you can often read a single drive on its own - even when the array as a whole is unhappy.

Imagine the array will not start properly, but a particular drive is physically fine. Turning on that one disk share lets you reach its files directly and copy them somewhere safe - a real lifeline in a bad moment. This is the main reason disk shares exist.

• Turn on only the specific disk share you need.
• Copy its files off to another drive or computer - do not shuffle them among Unraid views.
• Keep the mixing rule in mind the entire time you are working.

A Recovery Scenario Where Disk Shares Help

Let us walk through the kind of moment where a disk share is the hero - in general terms, the way these situations tend to unfold.

Suppose the server flags trouble with the array, and you are told a rebuild may be needed. You are nervous about your files. If one of the data drives is itself healthy, you can turn on that drive as a disk share and copy its files straight off to an external drive - a safety copy in hand before you attempt anything bigger.

• A calm, independent copy of at least some files before repairs.
• Confidence to proceed with a rebuild, knowing you have a fallback.
• A concrete use for the disk-share view that a user share cannot give you.

Performance Notes

People sometimes ask whether one view is faster than the other. For everyday use the honest answer is: do not choose based on speed - choose the user share for safety and simplicity.

In short, the tiny performance differences are not worth trading away the safety and ease of user shares. Use the user share and let the cache and network do the heavy lifting.

• User shares carry a whisper of extra overhead to gather files from all drives - unnoticeable in normal home use.
• Disk shares read one drive directly, which is why they shine for recovery, not for daily speed.
• Your real speed limits are usually your network and the drives themselves, not which view you picked.

The Most Common Point of Confusion

Here is the exact moment this topic bites people, so you can spot it coming and step around it.

You are browsing the server and you see the same file appear to exist in two places - once under Media, once under Disk 2. It looks like a duplicate you should clean up. It is not a duplicate. It is one file, shown through two windows. Trying to "tidy" it by copying or deleting across the two views is exactly the dangerous move.

• Remember: a file in a user share and in a disk share is the SAME file, not two copies.
• Do all your organizing inside the user shares only.
• If disk views tempt you into tidying, turn disk shares off entirely.

Keeping Folder Structure Tidy Across Disks

Because your files quietly spread across several drives, a little tidiness up front keeps everything easy to find - no matter which disk a given file lands on.

The beauty of user shares is that your neat folder structure looks the same to you whether the files are on one drive or spread across six. You organize once, and Unraid keeps the picture whole.

• Organize inside user shares - make folders like Movies, TV, and Music within Media.
• Let Unraid handle the drives - you arrange folders; it decides which disk each file sits on.
• Keep names consistent so the same structure appears no matter how files are spread.
• Do not micromanage disks - trust the user share to gather it all back together for you.

A Simple Recommendation for Beginners

If you would like the short, safe path through all of this, here it is - the settings and habits I would suggest to anyone just starting out.

• Use user shares for everything - Media, Documents, Backups, and so on.
• Leave disk shares turned off in the sharing settings.
• Leave split level and allocation method at their defaults.
• Let every share use all disks unless you have a real reason not to.
• Do all your file organizing through the user shares, from your PC or Mac.
• Only turn on a disk share for a specific, deliberate job - then turn it back off.

When to Ask for Help

Some of this you can happily manage yourself. Other moments are worth a phone call before you touch anything - especially when files are on the line.

• Making and organizing user shares.
• Leaving disk shares off and using the defaults.
• Everyday copying of files in and out through the user shares.

What's in the 27-page PDF

• The two ways Unraid shows your files
• What a user share is, and what a disk share is
• Why user shares are the everyday default
• The one dangerous mistake to never make
• When a disk share is genuinely useful
• A simple recommendation for beginners

Why I wrote this

I write these as printable handouts because a guide you can keep in a drawer beats a web page you have to find again. No jargon, no judgment, no rushing. If you'd rather have someone sit beside you and go through it together, that's a flat $99 first visit with the 30-day follow-up included — serving Portage County from Atwater, Ohio. — Bill