A better file system

There are many things I love about my Mac, but I am not a fan of their "file" system.
Is there a way to implement a bread crumb trail or "path"?
Is there a way to make fonts and icons bigger in list view?
I have looked at Path Finder, and it has a bread crumb trail, but the icons are so small.
Any help is greatly appreciated.
Phil

Finder has always been one of OS X's weaker points, IMO.
I'm not sure what you mean by bread crumb trail, but you might try column view to get a good idea of where you are in the directory tree. You can also enable the showing of the path to the current folder in Finder's title bar by entering this in Terminal:
defaults write com.apple.finder _FXShowPosixPathInTitle -bool YES;killall Finder
To make fonts and icons bigger in list view, open a Finder window in list view and press ⌘J.

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QCOW LVM What would be the best file system ?

I would like to put my kvm instances (iso + qcow2 file) in separate logical volumes (I am using LVM).
I am just wondering if there is a better file system to handle just these two particular files.
Just ext2 ?
Thanks for any hints.

Hi,
Please check the article below
http://sharepoint.nauplius.net/2013/01/supported-file-formats-in-the-sharepoint-2013-media-web-part/
http://social.technet.microsoft.com/Forums/sharepoint/en-US/9c9eb5a4-89c2-4550-af32-e23e568849e7/what-file-type-is-the-best-video-format-to-house-in-sharepoint?forum=sharepointgenerallegacy
Please remember to click 'Mark as Answer' on the answer if it helps you

Store large volume of Image files, what is better ? File System or Oracle

I am working on a IM (Image Management) software that need to store and manage over 8.000.000 images.
I am not sure if I have to use File System to store images or database (blob or clob).
Until now I only used File System.
Could someone that already have any experience with store large volume of images tell me what is the advantages and disadvantages to use File System or to use Oracle Database ?
My initial database will have 8.000.000 images and it will grow 3.000.000 at year.
Each image will have sizes between 200 KB and 8 MB, but the mean is 300 KB.
I am using Oracle 10g I. I read in others forums about postgresql and firebird, that isn't good store images on database because always database crashes.
I need to know if with Oracle is the same and why. Can I trust in Oracle for this large service ? There are tips to store files on database ?
Thank's for help.
Best Regards,
Eduardo
Brazil.

1) Assuming I'm doing my math correctly, you're talking about an initial load of 2.4 TB of images with roughly 0.9 TB added per year, right? That sort of data volume certainly isn't going to cause Oracle to crash, but it does put you into the realm of a rather large database, so you have to be rather careful with the architecture.
2) CLOBs store Character Large OBjects, so you would not use a CLOB to store binary data. You can use a BLOB. And that may be fine if you just want the database to be a bit-bucket for images. Given the volume of images you are going to have, though, I'm going to wager that you'll want the database to be a bit more sophisticated about how the images are handled, so you probably want to use [Oracle interMedia|http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14302/ch_intr.htm#IMURG1000] and store the data in OrdImage columns which provides a number of interfaces to better manage the data.
3) Storing the data in a database would generally strike me as preferrable if only because of the recoverability implications. If you store data on a file system, you are inevitably going to have cases where an application writes a file and the transaction to insert the row into the database fails or a the transaction to delete a row from the database succeeds before the file is deleted, which can make things inconsistent (images with nothing in the database and database rows with no corresponding images). If something fails, you also can't restore the file system and the database to the same point in time.
4) Given the volume of data you're dealing with, you may want to look closely at moving to 11g. There are substantial benefits to storing large objects in 11g with Advanced Compression (allowing you to compress the data in LOBs automatically and to automatically de-dupe data if you have similar images). SecureFile LOBs can also be used to substantially reduce the amount of REDO that gets generated when inserting data into a LOB column.
Justin

How to get access to the local file system when running with Web Start

I'm trying to create a JavaFX app that reads and writes image files to the local file system. Unfortunately, when I run it using the JNLP file that NetBeans generates, I get access permission errors when I try to create an Image object from a .png file.
Is there any way to make this work in Netbeans? I assume I need to sign the jar or something? I tried turning "Enable Web Start" on in the application settings, and "self-sign by generated key", but that made it so the app wouldn't launch at all using the JNLP file.

Same as usual as with any other web start app : sign the app or modify the policies of the local JRE. Better sign the app with a temp certificate.
As for the 2nd error (signed app does not launch), I have no idea as I haven't tried using JWS with FX 2.0 yet. Try to activate console and loggin in Java's control panel options (in W7, JWS logs are in c:\users\<userid>\appdata\LocalLow\Sun\Java\Deployment\log) and see if anything appear here.
Anyway JWS errors are notoriously not easy to figure out and the whole technology in itself is temperamental. Find the tool named JaNeLA on the web it will help you analyze syntax error in your JNLP (though it is not aware of the new syntax introduced for FX 2.0 and may produce lots of errors on those) and head to the JWS forum (Java Web Start & JNLP Andrew Thompson who dwells over there is the author of JaNeLA).

Open library from AFP share - Unsupported File System - Aperture 3

Testing Aperture 3 - Exported a project as a library to an AFP (10.5) share.
I then tried to reopen the library and got an error Unsupported File System ?
Is there possibly a network file system that will support Aperture 3 libraries ?

Temp solution in this thread - tested it and it works
http://discussions.apple.com/thread.jspa?threadID=2330306&tstart=30
I have found an workaround for this issue. Do the following:
First, upgrade the library to version 3 using Aperture on the computer where you have the disk containing the library; if this is not possible, copy the library on the computer running Aperture and do the update there, then copy the updated library back;
Then navigate to the network disk where you have the updated library and double-click it: a dialog box will come out saying something like <There was an error opening the database for the library "/Volumes/Media/Pictures/Aperture Library.aplibrary". The library could not be opened because the file system of the library's volume is unsupported> Click OK.
A new dialog box will appear asking "Which library do you want Aperture to use?" and a list with all libraries; among them, the library situated on the network disk. Select it and click "Choose".
Voila, after a delay depending on the speed of your network and remote disk, the library will open.
Note that this "show" will repeat each time you will start-up Aperture. Anyway, it's better than nothing. I hope that Apple will correct this soon.
And yes, I am using the Trial Version, I will buy a license only after Apple solves this issue! "

I am trying to resize disk space on parallels 6 for windows XP under configure Hardrive and I get the error resizing failed unable to resize last volume the file system of this volume might be damaged or not supported? I am on a Mac using Parallels 6

I have been trying to increase my disk space for windows xp on my Imac and I am running parallels 6. before opening windows I go into configure in parallels and open the hard drive and try to move the allotted disk space from 32 gig to 64 or any other increased gig and then apply and I get the error message: resizing failed unable to resize last volume. The file system of this volume might be damaged or not supported. How do I increase the size?? I just also did a disk repair utility with Apple on the Apple side of my IMAC. Please Help!! I had uninstalled SQL server on the windows side and needed to uncompress files to install this and then I ran short on disk space.

This sounds to me that your Parallels XP file system is corrupted and not the OSX file system.
Have you checked the XP file system while running the Parallels XP yet ?
However, it would be better to ask such question in the Parallels Forum http://forum.parallels.com/
Stefan

File system usage report chart generation - automated via reports and email

Hello,
I have requirement where I have to generate a monthly file system usage chart (just like a tablespace total_mb, used_mb, free_mb....) and mail it directly to the client.....
Any ideas or suggestions would be welcome....
Thanks,
S.

It's a pretty open-ended question, because a number of things can be causing slow performance. You mention needing to look at ODBC connection performance - I found that using ODBC drivers for iSeries was very slow in the past. You might want to look at using the JDBC driver in the IBM JTOpen Toolkit - it made a big difference for us when we were querying iSeries in the past.
When you refer to "reports" in this thread's title, do you mean reports from ColdFusion Report Builder? Or to just ColdFusion .cfm pages? How complex are these reports? How much information is displayed, especially in tabular form? Just rendering huge HTML tables (as in thousands of rows of data) will often cause browsers to become temporarily unresponsive or hang. If you provide more details, we might better be able to target where the "pain point" really is.
-Carl V.

Camera attached with USB - How to access the flash file system?

OK...this is maddening for someone that is so used to using a Windows file system that can be enumerated on any device, whether a hard disk or attached USB flash device. All I want to do (at this moment) is see the file system on the flash in my camera so I can delete certain images. None of the Leopard utilities seem to be able to access this as a "device". Perhaps this can be done from the terminal with Unix/Linux commands...not something that I want to do.
Can someone help me?
Thanks.

Scott Radloff wrote:
This has more to do with the camera than OS X. Some cameras use communication protocols that do not play well with the Finder. For these cameras, support is built into iPhoto.
It is also built into the included Image Capture utility, which is more flexible than iPhoto in some ways for simple downloads. You can preview and select individual pics, and set the folder where the pictures go.
Terence Devlin wrote:
Almost all Canon and some Kodak cameras refuse to mount in the File System. It’s a characteristic of the brands.
In the case of Canon it is lack of support for USB Mass Storage which almost all other brands do. But as stated it is much better and safer to use a card reader instead of the USB cable. A card reader always shows up on the desktop for drag-and-drop.

Partitioning previously used Windows NT File System for use with Mac and PC

With reference to this thread I found when searching for a solution: Can Windows NT File System(NTFS) format external hard drive work on iMac?
Below is the comment which led to me creating this new thread.
"rkaufmann87Sep 8, 2014 8:26 AM Re: Can Windows NT File System(NTFS) format external hard drive work on iMac?
in response to djj19
djj19 wrote:
Hi there,
I am about to follow your advice also for the same issue, the worry I have is that when I select partition 1, it says "To erase and partition the selected disk..." and so I am worried that if I do this it will erase the current contents of the hard disk drive (which were copied there from PCs in previous use).
If so, is there a way to use the hard disk drive with a mac without erasing the contents?
Thanks
Your case is different and NO do not partition the EHD yet unless you are prepared to completely erase your PC data. Before progressing though, do you intend to share the EHD with a PC and your Mac? If so this is not advisable but it is possible, however you will need to compromise. Please answer that question first and then we can proceed with some advice.
BTW it's generally not a good idea to ask a question in a thread that has already been answered, particularly one that is 3+ years old! In such a case it's normally better to create your own thread. "
The answer to the question in the above comment is that ideally I would like to use with both Mac and PC, why is this not advisable?
Please discuss my best options. I am wondering if I could transfer the current contents of the disk drive elsewhere, partition (which would erase) the disk drive, then put back the contents along with the new files which I have been trying to put on in the first place?
If this were to work would I then be tied down to only using this disk drive with a Mac?
Thank you.
Message was edited by: djj19

Ideally it is best to have seperate (discreet) EHD's for a PC and Mac due to their differences in HD formatting. However, this is not always feasable but there are alternative solutions availble. Among those are:
Creating and useing a Dropbox account that can be shared by PCs, Macs, IOS and Android devices. Dropbox allows for 2GB of free storage and additional storage is available for a small monthly fee.
Another possiblity is formating an EHD so that it may be shared by both a PC and Mac, this format is FAT 32. The downside of doing this is the size of the files written to the HD are limited to 4GB.

File system chaos; how to backup and restore one's home folder??

My young son managed to drag the desktop icon from the hard disk to the trash. I dragged the desktop out of the trash but the file system on the hard disk seems to be whacked: iphoto, itunes were unable to find their libraries (I solved this though), and other apps seem to suffer the same problem as well. I'm guessing my best option is to reformat the disc and reinstall OS 10.4.7 but I want to make sure that I get all documents, files, etc. from my home folder. Can I simply drag that folder to an external drive, perform the reformat/reinstall and then drag the home folder from the external drive back? What is the best way to proceed?

There are some article by Apple on Disk Utility, and you do not want to always use the Install Disk to repair your drive if the version is earlier. You'd be better off with fsck in single user mode.
You can repair permissions from any boot drive running Tiger, as it looks in the /Receipts regardless (unlike 10.2 which had a messed up method).
As for finding all the files to backup - I would use Disk Utility Restore, then backup the whole volume to a blank partition on your FW drive. And while at it, setup an emergency boot volume for OS X that you can use for repairs in the future.
And maybe create separate accounts, then backup those accounts, and limit what others can or cannot do.

Uploaded Files stored in Oracle 10G database or in Unix File system

Hey All,
I am trying to understand best practices on storing uploaded files. Should you store within the database itself (this is the current method we are using by leveraging BLOB storage) or use a BFILE locator to use the files system storage (we have our DB's on UNIX) . . .or is there another method I should be entertaining? I have read arguments on both sides of this question. I wanted to see what answers forum readers could provide!! I understand there are quite a few factors but the situation I am in is as follows:
1) Storing text and pdf documents.
2) File sizes range from a few Kb to up to 15MB in size
3) uploaded files can be deleted and updated / replaced quite frequently
Right now we have an Oracle stored procedure that is uploading the files binary data into a BLOB column on our table. We have no real "performance" problems with this method but are entertaining the idea of using the UNIX file system for storage instead of the database.
Thanks for the insight!!
Anthony Roeder

Anthony,
First word you must learn here in this forum is RESPECT.
If you require any further explanation, just say so.
BLOB compared with BFILE
Security:
BFILEs are inherently insecure, as insecure as your operating system (OS).
Features:
BFILEs are not writable from typical database APIs whereas BLOBs are.
One of the most important features is that BLOBs can participate in transactions and are recoverable. Not so for BFILEs.
Performance:
Roughly the same.
Upping the size of your buffer cache can make a BIG improvement in BLOB performance.
BLOBs can be configured to exist in Oracle's cache which should make repeated/multiple reads faster.
Piece wise/non-sequential access of a BLOB is known to be faster than a that of a BFILE.
Manageability:
Only the BFILE locator is stored in an Oracle BACKUP. One needs to do a separate backup to save the OS file that the BFILE locator points to. The BLOB data is backed up along with the rest of the database data.
Storage:
The amount of table space required to store file data in a BLOB will be larger than that of the file itself due to LOB index which is the reason for better BLOB performance for piece wise random access of the BLOB value.

Difference between ASM Disk Group, ADVM Volume and ACFS File system

Q1. What is the difference between an ASM Disk Group and an ADVM Volume ?
To my mind, an ASM Disk Group is effectively a logical volume for Database files ( including FRA files ).
11gR2 seems to have introduced the concepts of ADVM volumes and ACFS File Systems.
An 11gR2 ASM Disk Group can contain :
ASM Disks
ADVM volumes
ACFS file systems
Q2. ADVM volumes appear to be dynamic volumes.
However is this therefore not effectively layering a logical volume ( the ADVM volume ) beneath an ASM Disk Group ( conceptually a logical volume as well ) ?
Worse still if you have left ASM Disk Group Redundancy to the hardware RAID / SAN level ( as Oracle recommend ), you could effectively have 3 layers of logical disk ? ( ASM on top of ADVM on top of RAID/SAN ) ?
Q3. if it is 2 layers of logical disk ( i.e. ASM on top of ADVM ), what makes this better than 2 layers using a 3rd party volume manager ( eg ASM on top of 3rd party LVM ) - something Oracle encourages against ?
Q4. ACFS File systems, seem to be clustered file systems for non database files including ORACLE_HOMEs, application exe's etc ( but NOT GRID_HOME, OS root, OCR's or Voting disks )
Can you create / modify ACFS file systems using ASM.
The oracle toplogy diagram for ASM in the 11gR2 ASM Admin guide, shows ACFS as part of ASM. I am not sure from this if ACFS is part of ASM or ASM sits on top of ACFS ?
Q5. Connected to Q4. there seems to be a number of different ways, ACFS file systems can be created ? Which of the below are valid methods ?
through ASM ?
through native OS file system creation ?
through OEM ?
through acfsutil ?
my head is exploding
Any help and clarification greatly appreciated
Jim

Q1 - ADVM volume is a type of special file created in the ASM DG. Once created, it creates a block device on the OS itself that can be used just like any other block device. http://docs.oracle.com/cd/E16655_01/server.121/e17612/asmfilesystem.htm#OSTMG30000
Q2 - the asm disk group is a disk group, not really a logical volume. It combines attributes of both when used for database purposes, as the database and certain other applications know how to talk "ASM" protocol. However, you won't find any general purpose applications that can do so. In addition, some customers prefer to deal directly with file systems and volume devices, which ADVM is made to do. In your way of thinking, you could have 3 layers of logical disk, but each of them provides different attributes and characteristics. This is not a bad thing though, as each has a slightly different focus - os file system\device, database specific, and storage centric.
Q3 - ADVM is specifically developed to extend the characteristics of ASM for use by general OS applications. It understands the database performance characteristics and is tuned to work well in that situation. Because it is developed in house, it takes advantage of the ASM design model. Additionally, rather than having to contact multiple vendors for support, your support is limited to calling Oracle, a one-stop shop.
Q4 - You can create and modify ACFS file systems using command line tools and ASMCA. Creating and modifying logical volumes happens through SQL(ASM), asmcmd, and ASMCA. EM can also be used for both items. ACFS sits on top of ADVM, which is a file in an ASM disk group. ACFS is aware of the characteristics of ASM\ADVM volumes, and tunes it's IO to make best use of those characteristics.
Q5 - several ways:
1) Connect to ASM with SQL, use 'alter diskgroup add volume' as Mihael points out. This creates an ADVM volume. Then, format the volume using 'mkfs' (*nix) or acfsformat (windows).
2) Use ASMCA - A gui to create a volume and format a file system. Probably the easiest if your head is exploding.
3) Use 'asmcmd' to create a volume, and 'mkfs' to format the ACFS file system.
Here is information on ASMCA, with examples:
http://docs.oracle.com/cd/E16655_01/server.121/e17612/asmca_acfs.htm#OSTMG94348
Information on command line tools, with examples:
Basic Steps to Manage Oracle ACFS Systems

Target file system layout in homogeneous DB copy

Gurus:
We have a target system whose file system layout is totally different from the source system in that:
1) the number of the file system is less than that in the source;
2) the size of each targte file system is also different from the source system.
BTW way the target has a DB running.
Can we go ahead to do the import without doing anything on above differences? i.e just go ahead to overwrite the target
DB?
Oracle on Unix.
Thanks a lot!

Hi,
its better and recommemded by SAP if you have the same DB instance SID and SAPSID.
If the target system has different SID than the source that will be more work to do for you. its makes things easyer if you have the same name as the source system.
You have two different file system and different SID. So its better to minimize those things if you can.
I think in this step where you are, I would prefer to deinstall oracle on the target system and install it again with the SAP recommendations for SAP Software which you will find on the installation guide. Because you wrote that oracle is already installed on the target system but without SAP. This means the installation was not for SAP and its different to SAP recommended..
Chooce also Oracle DB instance name and SAPSID the same name.
Good luck
HaneAtik

Determining file system case-sensitivity

Is there any way that isn't a hack to determine whether the specific platform that the JVM is running on uses case-sensitive file names or not?
Thanks,
Jason

> Beware that the use of case-sensitive file names is not platform dependant but rather file system dependent.
I didn't know that. That's good to know. So, would you just recommend creating a temporary file in the path in question, then checking to see if it exists using the same name with different case, then deleting the temporary file?
That's what I was trying to not do... I was looking for a more solid way. But since it isn't platform dependent, is it the only way? Or is there still a better method?
Thanks,
Jason

File System Case Sensitive - breaks Write-Once

I don't find a System property that denotes if the file system is case sensitive.
If I want a FileFilter to behave as the user is expecting - it must know if the file system that it is running on is case sensitive. For example: On a DOS system the file apple.txt should be returned with the file PEACH.TXT by a FileFilter that is accepting *.TXT files. But on a Unix system only the PEACH.TXT would be returned (case sensitive).
How would I make my FileFilter a true write-once-run-anywhere class?
What am I missing?
David

For a file filter,
you can get the file name and convert it to lowercase,
then compare to a lowercase extension. It's not like
that will rename the file, the file will still have
whatever name the file has. However for a FileFilter that is case sensitive - there is a difference in what a File.listFiles(new ExtensionFilter("txt")) returns. And one can not just decide that it doesn't matter.
Here's a specfic example. On a case insensitive system what is the next file in the sequence of:
File.001, File.002, File.003, file.004
Answer: fILE.005 - is valid
But on a case sensitive system if one uses a FileFilter to find all the files that match "File".* then the answer is "File.004" - ONLY ONE answer, and creating this file will not (should not) overwrite the file.004!
Seems to me one needs to match the FileFilter to the underling OS - because chances are the user is expecting OS file system naming conventions. If the user doesn't know what file system (and can't know - like on a web server app) then the system better be smart enough to not mess up and clober files.
So it appears to me that a programmer needs to be able to ask the System what it's file system convention is. And sure I could guess based on some other properties (System.os.name or as Sun did based on file.separator) - but I was hopeful that I didn't need to GUESS.

A better file system

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