Hard Drive Question - OK to fill one partition?

Ketchup

Elite Member
Sep 1, 2002
14,559
248
106
Computer is not in the sig - it is my file/media server.

Main drive is a 1 TB with two partitions - one is running the OS (50 GB), about 50% full; the rest (880 GB) is storage. The storage part about 83% full. Do you think there is any part before 100% (880) that I should get concerned?
 

denis280

Diamond Member
Jan 16, 2011
3,434
9
81
My wd black is up to 95% and still works great.around 98% i will stop.just to make sure.
 

VirtualLarry

No Lifer
Aug 25, 2001
56,587
10,225
126
No, filesystems don't like it when available free space is down to zero. In fact, you should keep 5% free at all times.
 

Essence_of_War

Platinum Member
Feb 21, 2013
2,650
4
81
It's not generally great for performance for a filesystem to be filled to more than about 80-90% or so. If I were you, I'd be looking for a storage upgrade. 2-3 TB hard drives are so cheap, that I think it's an easy upgrade to recommend.

As a rule of thumb, when you fill a filesystem to 60-70% capacity, that's a good time to plan for your next upgrade, informed by how long it took you to fill to 50-60%, and how quickly you expect to be adding new data in the near future.
 

Ketchup

Elite Member
Sep 1, 2002
14,559
248
106
Thanks all. I have another terabyte drive with more free space in the server, so I can start moving things around when it comes down to it.
 

BFG10K

Lifer
Aug 14, 2000
22,709
3,003
126
If it's running fine then keep filling it up. Don't worry about it unless you start having problems.
 

corkyg

Elite Member | Peripherals
Super Moderator
Mar 4, 2000
27,370
240
106
My choice is always to leave sufficient space for regular drive maintenance.
 

Elixer

Lifer
May 7, 2002
10,371
762
126
Until the filesystem fills up, corrupts, and you lose data. Sure, keep using it until it fills up...

Eh, show me one case where this would happen on a modern filesystem.

There is no modern filesystem where, if you fill it 100% up, that it will corrupt so you lose data. At most, it will say 'I ran out of room, I can't write this file!'

Now, if we are talking about the hardware side, as in, you start to have bad blocks/sectors, then the HD will start to use the reserved sectors, so, your info should still be safe, until the time the HD finally craps out, then you lost all your data.

But, this is also why you keep backups, since these things happen.

For performance reasons, you may wish to limit how filled you want the HD, but that highly depends on what filesystem you are using.
 

Ketchup

Elite Member
Sep 1, 2002
14,559
248
106
My choice is always to leave sufficient space for regular drive maintenance.

Can you be more specific here 'regular drive maintenance'? I would assume you are referring to fragmentation, but if something further please share.

I have found that outside of the OS partition, fragmentation on the other partition and the other drive is not an issue. Makes sense to me, as data is only being added to the next available sectors, and there aren't applications that would be constantly writing to/changing files.
 

corkyg

Elite Member | Peripherals
Super Moderator
Mar 4, 2000
27,370
240
106
Can you be more specific here 'regular drive maintenance'? I would assume you are referring to fragmentation, but if something further please share....

I refer to file movements that occur during Optimization as well as editing of imagery. Of course, all in non-OS spindle drives. I say "regular" because I do these things nearly daily.
 

BFG10K

Lifer
Aug 14, 2000
22,709
3,003
126
Until the filesystem fills up, corrupts, and you lose data. Sure, keep using it until it fills up...
Data won't be lost or corrupted. Any file system that does that is inherently broken.

What will actually happen is degraded write performance or (at worst) "disk full" errors.
 

Ketchup

Elite Member
Sep 1, 2002
14,559
248
106
Data won't be lost or corrupted. Any file system that does that is inherently broken.

What will actually happen is degraded write performance or (at worst) "disk full" errors.

This is what I am thinking as well. I know FAT would get really upset when the drive was over 3/4 full. I have seen a few instances of full NTFS drives, but they had the OS on them, and I was only there to clean up/clone to something bigger, so I wasn't privy to any data loss that may have occurred.
 

ArisVer

Golden Member
Mar 6, 2011
1,345
32
91
Makes sense to me, as data is only being added to the next available sectors, and there aren't applications that would be constantly writing to/changing files.

I have a question here. What happens when you add more data to an existing folder? Does it point to the sector the file(s) are beeing written or does it defragment?
 

Ketchup

Elite Member
Sep 1, 2002
14,559
248
106
I have a question here. What happens when you add more data to an existing folder? Does it point to the sector the file(s) are beeing written or does it defragment?

Folder is only used at the software level. Physically, the data goes to the next empty spot on the disk (starting from the beginning). The file system really doesn't care where the data is on the drive. If the spot is not large enough to hold the file, it will put the rest of the file in the next open location, so you would now have a file in fragments.
 

corkyg

Elite Member | Peripherals
Super Moderator
Mar 4, 2000
27,370
240
106
How can you do that if the disk is full and there is no empty space? Anyway, that is not my concern since I will always have enough freeboard to allow my boat to weather stormy waters. :)