What is this "Enable USN Journal" for?
What is this "Enable USN Journal" for?
What is this "Enable USN Journal" for?
Better to activate it or not?
Better to activate it or not?
Re: What is this "Enable USN Journal" for?
The USN Journal is a log of all the recent changes to your NTFS volume.
It is maintained by your NTFS driver (not Everything)
Please leave it enabled.
It is maintained by your NTFS driver (not Everything)
Please leave it enabled.
Re: What is this "Enable USN Journal" for?
Sorry, do not know what this is.It is maintained by your NTFS driver (not Everything)
OK, I will do. Whatfor?Please leave it enabled.
Re: What is this "Enable USN Journal" for?
Windows uses a couple of hidden Windows 'bookkeeping files' to keep track of all files and folders on NTFS disks.
Everything uses (reads) two of these to 'do its thing'.
The first one is the Master File Table, It is the 'addressbook' where all your files are on that disk. This is used for Everythings initial scan of the disk.
The second one is the USN Journal. It is a list of all recent changes to this disk. Reading this file frequently, enables Everything to update its index in real time.
So: Everything needs it for real-time updates.
Re: What is this "Enable USN Journal" for?
OK, thank you. So why is it enabled then by default?
It seems it can be enabled only when the drive is online? With all offline drives it seems that it cannot be activated, it is greyed out.
Should I enable this as well(?):
It seems it can be enabled only when the drive is online? With all offline drives it seems that it cannot be activated, it is greyed out.
Should I enable this as well(?):
Re: What is this "Enable USN Journal" for?
It is already enabled by Windows. Windows needs this too.
The USN Journal of that disk is on the disk itself, So when it is off-line, changing the setting is impossible.
In general, this should stay disabled.Should I enable this as well(?):
If you never use the rc: function, this is not needed
When you keep Everything running (background or foreground) this is not needed.
Some background:
When recent changes are indexed (Options > Indexes: Index recent changes), Everything keeps a separate list of changes to files/folders since Everything was started.
Load USN Journal into the Recent Changes database extends this recent changes list of files with the ones found in the USN Journal (about 2 weeks worth of changes).
If you keep Everything running, there will be nothing extra to add as these changes are already found by Everything.
If you never look for recent changes (rc: function), Index recent changes as well as Load USN Journal into the Recent Changes database then both can be unchecked.
Re: What is this "Enable USN Journal" for?
Sorry, I meant the option in Everything.It is already enabled by Windows. Windows needs this too.
So there obviously is no option to do possible that would let one enable it when the drive is offline and when it goes online to automatically execute the enabling.The USN Journal of that disk is on the disk itself, So when it is off-line, changing the setting is impossible.
OK, thank you for the background, too.
So then all is checked here what shall be checked. Besides of "Enable USN Journal". I will try to check it for each drive when these drives with that options uncechked are online, if I don't forget.
Re: What is this "Enable USN Journal" for?
Out of interest, any idea where the USN journal is kept, is it a file or several files? I use Win 7
Re: What is this "Enable USN Journal" for?
It is one file, not part of the normalfilesystem as-you-know-it.
It is visible for example in WizTree (when running elevated):
The file $UsnJrnl appears to be of size zero, but the actual content is in an Alternate Data Stream (ADS) named $J:
(screenshot from 7-Zip's 7zfm.exe)
It is visible for example in WizTree (when running elevated):
The file $UsnJrnl appears to be of size zero, but the actual content is in an Alternate Data Stream (ADS) named $J:
(screenshot from 7-Zip's 7zfm.exe)
Re: What is this "Enable USN Journal" for?
That program is incredibly fast, even on my slow computer. Over a million files in a few seconds.It is visible for example in WizTree (when running elevated):
Why do you have an old WizTree, from 2018?
Re: What is this "Enable USN Journal" for?
Thanks, I'll take a look...I did do a search for usnjrnl a while back with everything but obviously no results were returned. I'll give Wizytree a try. it may be useful.
Re: What is this "Enable USN Journal" for?
That is because it uses "Everything-technology" to get the list of files
(and that is why it has to be run elevated, because it needs access to the Master File Table)
(This is getting even more off-topic...)
My prehistoric laptop that I use for to play with Windows and applications (it is my main Everything-experiment system too) is slowly dying.
So I took another one I have lying around (much faster ) and have yet to update all software...
I use it to find out which folders take up most space. Easier overview compared to Everything.
In the screenshot you see a "File View" too. It is a rudimentary Everything replacement.
Re: What is this "Enable USN Journal" for?
The same technology as Everything or technology developped for Everything?That is because it uses "Everything-technology" to get the list of files
So that is why Everything has to run elevated as well or with that server.(and that is why it has to be run elevated, because it needs access to the Master File Table)
Ah, OK, I understand.My prehistoric laptop that I use for to play with Windows and applications (it is my main Everything-experiment system too) is slowly dying.
So I took another one I have lying around (much faster ) and have yet to update all software...
Re: What is this "Enable USN Journal" for?
Presumably, Everything would find the files if I added \\.\Physical Drive0\1.ntfs\[SYSTEM]\$Extend\$UsnJrnl:?
Re: What is this "Enable USN Journal" for?
The same technology as Everything. Both read the MFT.
elevated or by enabling Everything Service. The Everything Service runs elevated, so the rest (database,GUI,etc) can run as a regular user.
Don't think that it is that simple. Everything sees more than it shows, so some parts are filtered out.
Also: the \\.\ syntax is part of the Windows device namespace. I suspect Everything focuses on the File namespace as that is where the 'normal' files are.
Re: What is this "Enable USN Journal" for?
That appears to do quite a lot of programs. The ones which are very fast. The programs not doing that (I assume, e.g. FreeCommander) actually not sensibly usable (one might think) are pretty slow, I assume.The same technology as Everything. Both read the MFT.
So to have created the Everything Service sounds like a great idea. No admin rights needed. Better security.elevated or by enabling Everything Service. The Everything Service runs elevated, so the rest (database,GUI,etc) can run as a regular user.
Re: What is this "Enable USN Journal" for?
Is it technically feasible to have an option for Everything to show everything with nothing filtered out?Don't think that it is that simple. Everything sees more than it shows, so some parts are filtered out.
Re: What is this "Enable USN Journal" for?
Oops, holy sheet, I'm not sure if that's an incredible insult like I've never heard before or the opposite. I guess, the opposite. Yes yes, indeed, that is absolutely very true.Exactly! This void-dude isn't as stupid as we all thought all this time
Re: What is this "Enable USN Journal" for?
Don't think that it is that simple. Everything sees more than it shows, so some parts are filtered out.
Is it technically feasible to have an option for Everything to show everything with nothing filtered out?
Re: What is this "Enable USN Journal" for?
Everything only indexes and monitors files under the volume root.
(Special NTFS files such as $UsnJrnl are ignored)
I will consider an option to show these files.
However, they will be inaccessible.
(Special NTFS files such as $UsnJrnl are ignored)
I will consider an option to show these files.
However, they will be inaccessible.
Re: What is this "Enable USN Journal" for?
Thanks, an option to show would be useful.
Re: What is this "Enable USN Journal" for?
Notnull, how did you access PhysicalDrive0_1.ntfs_[SYSTEM]_$Extend_$UsnJrnl on 7zip?
Thanks.
Thanks.
Re: What is this "Enable USN Journal" for?
See below:
You need to start 7zfm.exe as administrator for this to work.
You need to start 7zfm.exe as administrator for this to work.
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