SSD and Data/Cache folder

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I noticed that the latest update to any of the SSD/Cache threads was almost two weeks old and wanted to make sure that the Devs didn't think this was no longer an issue.

My C:\Program Files (x86)\World of Warcraft\Data\Cache is 8.96GB. My entire WoW folder is 22.8GB. This makes my cache folder as large as 65% of my entire game folder minus cache.

What I and many others would like to know is why is this monstrosity here and why no option to turn it off for those with SSD issues.

I would much rather have to wait for an entire patch to d/l and patch than have to run WoW on it's own 60GB SSD which is what it is looking like I am going to have to do to keep my zoning load times under 15 sec.

A Dev response would really be nice on this issue.
The cache folder is needed for data hotfix pushes and a place to hold less or uncompressed files. It does waste a bit of hard drive space but it saves on CPU cycles on just decompressing. If you want to, you can just mklink the Cache folder somewhere else.
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I have looked on several tech support web pages on how to mklink a directory from from one drive to another, but they are all very fuzzy about it.

it appears to me that the following is what would need to be done...

move C:\Program Files (x86)\World of Warcraft\Data\Cache to E:\Program Files (x86)\World of Warcraft\Data\Cache so that cache directory no longer exists on the C drive

mklink /j C:\Program Files (x86)\World of Warcraft\Data\Cache E:\Program Files (x86)\World of Warcraft\Data\Cache. so that i link the E drive directory to the place the C directory wouold have been.

I am going to try it out and let everyone know if that works.
Yes, that sounds right. You don't have to move it to an exact folder but on a separate drive, though. My C:\ drive is two Intel SSDs in RAID 0, and my D:\ drive has a little container folder in D:\Games\Blizzard Stuff\
I moved my Data\Cache folder there so it looks something like D:\Games\Blizzard Stuff\World of Warcraft\Data\Cache\

Then I did mklink /j "C:\Games\World of Warcraft\Data\Cache" "D:\Games\Blizzard Stuff\World of Warcraft\Data\Cache\"

Quote marks seem to be important since there's spaces in the folder names. I'm not at home right now so I can't try it. My work system is still running XP.
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Thank you very much. You are actually the first person to respond to the hundreds of posts on this subject that posted a real solution (unless I missed the other single post to do so). This needs to be a sticky post as there really are way too many posts asking this same question with zero answers.

You are correct, the quotation marks are required otherwise you get a syntax error.

For any that are wondering my C:\Program Files (x86)\World of Warcraft\Data\Cache is now a link to the directory E:\WoW\Data\Cache. C drive is no longer filling up with the cache files and I freed up 8.4GB of space.
Hello, thanks for bring this topic up. Its helped me save some room by moving over the same folder.

I've successfully moved over the

C:\Program Files (x86)\World of Warcraft\Data\Cache folder over to D:\Games\Blizzard Stuff\World of Warcraft\Data\Cache

But before I made the move, the folder was a little over 9 gigs. Once I made the move its now showing only 80.9 MB. Did I do something wrong that had affected the size of the folder?

thanks in advance.
Hardcorepom,

It's probably correct. Wasn't that the point? Reducing how much space it takes on your C drive?

I've never played around with linking like this but I'll give it a try tonight and see if it works as described and report back tomorrow. I'm sure it does though or Dat would have come back with an update. This is a rather old post you know :)


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Ya, but I thought the linked folder would've been the same size :P...
I don't know why I didn't think to do this before. O.o There's some great information in this thread! I freed up roughly 10 GB on my SSD, and load times didn't take too much of a dive either.

On the other hand, I wonder how performance would be to have WoW installed on a mechanical hard drive and then have the Data\Cache folder on a solid state drive. I don't know how WoW's caching algorithm works, so I'm not entirely sure which would offer the better performance.

Either way, this really is solid information. I think I'll have to link to Dat's post in the User tips and tricks thread so more people can see this. :P
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Hardcorepom,

It's probably correct. Wasn't that the point? Reducing how much space it takes on your C drive?

I've never played around with linking like this but I'll give it a try tonight and see if it works as described and report back tomorrow. I'm sure it does though or Dat would have come back with an update. This is a rather old post you know :)


so, how did it work out for ya?
Hardcorepom,

I set it up as described and it worked fine. It free'd up 10 gigs off my main drive and the game didn't object or do anything odd. So it's a viable option for people with space issues.

I won't be leaving it though as I'm not having any space issues and I tend to move my Wow folder around a lot to test different things.

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Hello, thanks for bring this topic up. Its helped me save some room by moving over the same folder.

I've successfully moved over the

C:\Program Files (x86)\World of Warcraft\Data\Cache folder over to D:\Games\Blizzard Stuff\World of Warcraft\Data\Cache

But before I made the move, the folder was a little over 9 gigs. Once I made the move its now showing only 80.9 MB. Did I do something wrong that had affected the size of the folder?

thanks in advance.


One key thing is that part of your cache might be hitting the VirtualStore folder. We're assuming that all of your files are being written straight to the Data\Cache folder and not being redirected before hitting it. If you're being redirected, you're not going to get any writes there. Key item: http://i.msdn.microsoft.com/dynimg/IC85459.gif

You may have better luck moving the World of Warcraft folder outside of the Program Files/Program Files (x86) before trying mklink.
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How does one reverse the link after it's been created? I'm assuming one shouldn't just right click + delete the link. Again, I'm new to all this and want to make sure in getting the best performance out of this game and the drive (Intel 510's 120gig) the game is located on.

Well i notice any beneficial gain or see a difference from having WoW on the Program Files (x86) or having it outside of the program files?

Thanks
You'd deal less with UAC redirecting your stuff. In-depth article can be found at http://msdn.microsoft.com/en-us/library/bb756960.aspx

To reverse links, just delete the junction points. They will look like shortcuts in Windows Explorer. Once it is gone, move the stuff back in. You can skip the moving stuff back in part if you're going to junction it somewhere else.
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Just to clarify, I'm using Win7.
Windows 7 has UAC. It does the same thing as Vista's UAC but it doesn't ask as many questions while doing it.
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I don't know why I didn't think to do this before. O.o There's some great information in this thread! I freed up roughly 10 GB on my SSD, and load times didn't take too much of a dive either.

On the other hand, I wonder how performance would be to have WoW installed on a mechanical hard drive and then have the Data\Cache folder on a solid state drive. I don't know how WoW's caching algorithm works, so I'm not entirely sure which would offer the better performance.

Either way, this really is solid information. I think I'll have to link to Dat's post in the User tips and tricks thread so more people can see this. :P
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The wise speak only of what they know. - J.R.R. Tolkien
CORE I7 3.4GHz | 12GB RAM | ATI 5970+5870 | F120 SSD
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You should try this and let us know the results. I am curious as to the answer to this question as well. Obviously initially opening the program would be slower, but overall performance is what i'd be curious about.
My apologies to resurrecting an older thread, but can one of you intelligent individuals kindly list in detail the step by step process for setting this up.

Thanks!
I just installed an SSD in a new system and have WoW running on it. I'm trying to mklink just as Datth did above and am getting an error. When I run cmd with admin privileges and input:

mklink /j "C:\Program Files\Games\World of Warcraft\Data\Cache" "E:\Games\Blizzard Stuff\World of Warcraft\Data\Cache\"

I get "Cannot create a file when that file already exists."

Does anyone have any suggestions to fix this?

Thanks.

------------------

Ended up using a simple directory linker program that did the job for me. Not sure why I wasn't able to do it through command line but, it's up and running now.

Thanks for the idea!
maybe little late, but couldn't post with my eu account ;-)

Solution for your "Cannot create a file when that file already exists." error is:

1.) rename your original "Cache" folder to e.g. C:\World of Warcraft\Data\Cache2

2.) try again ' mklink /j "C:\World of Warcraft\Data\Cache" "E:\World of Warcraft\Data\Cache\" '

3.) profit

hope this helps

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