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Old 08-24-2009, 06:10 AM   #1
nagavinodh
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file system of linux


Hi,
Iam newbie for linux.
what are the file system for linux.what is RAW?Is is shared storage ?

df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
145G 9.6G 128G 7% /
/dev/sda1 99M 13M 82M 14% /boot
none 2.0G 0 2.0G 0% /dev/shm
/dev/sdb1 459G 350G 86G 81% /ydev



Is it possible to use the RAW file system in ydev which is ext3 filesystem?
 
Old 08-24-2009, 06:27 AM   #2
pixellany
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Welcome to LQ!!

A quick Google search will get you the information on the various Linux filesystems---there are many.

I know "RAW" only as a file format used with digital cameras. Did you have something else in mind? If there is a different usage of "RAW", Google will find it.
 
Old 08-24-2009, 12:22 PM   #3
i92guboj
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Quote:
Originally Posted by nagavinodh View Post
Hi,
Iam newbie for linux.
what are the file system for linux.what is RAW?Is is shared storage ?
A filesystem is a logical method to distribute and store files on a physical media. Windows can use FAT32 or NTFS, in Linux the choice is wider, but it's usually accepted that ext2/3 is the standard Linux filesystem.

There are many more, though, like jfs, xfs, reiserfs, reiser4, and several others.

The term "raw" can mean a number of different things. When we talk about a "raw" filesystem we usually mean no filesystem at all. Like on tapes. However looking at your post as a whole I am not sure you mean that at all. So, might I ask you from where did you take this reference to "raw fs" and what exactly your objective is?
 
Old 08-24-2009, 11:22 PM   #4
chrism01
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Try

fdisk -l

to see what you've got right now
Ps that's a lower case 'L'
 
Old 08-25-2009, 01:16 AM   #5
nagavinodh
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Hi,
thanks for reply.I would like to install ORACLE RAC on RAW device which is shared storage and bypass linux buffer cache.How to create RAW FILE system in hard disk.
And also how to find the block size of RAW Device

Last edited by nagavinodh; 08-25-2009 at 01:26 AM.
 
Old 08-25-2009, 08:21 AM   #6
pixellany
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We need to know if you are talking about a filesystem named "RAW", or--as i92guboj suggested--do you mean NO filesystem?

Here is a Google search which suggests that i92guboj has the right answer----not all the articles either from or referring to Oracle.

http://www.google.com/search?hl=en&r...&aq=f&oq=&aqi=
 
Old 08-25-2009, 08:25 AM   #7
pixellany
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PS: Assuming that we are talking about a device with no filesystem, then I'm not sure there IS a block size-----i.e. isn't block size a property of a filesystem?
 
  


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