Questions on moving to "large file enabled" structure

[Gumboman]

ALL,<br>
<br>
I have a need to enable large files (&gt; 2GB) in AIX 4.2.1 and then move a few files from a 2 GB max size into the new structure. I cannot do this in the same volume group (all PPs are allocated on those drives) but can create a new vg to handle the files. I have never worked with this type of file size and any tips and hints would be greatly appreciated.<br>
<br>
Thanks in advance.

 

[MikeLacey]

Gumboman,<br>
<br>
I've never done this either (didn't even know large files had to be enabled) and would appreciate a short write up when you've completed.<br>
<br>
Mike<br>
<p>Mike Lacey<br><a href=mailto:Mike_Lacey@Cargill.Com>Mike_Lacey@Cargill.Com</a><br><a href=

http://www.cargill.com/>

Cargill's Corporate Web Site</a><br>

 

[ics007]

Working with &quot;Large File Enabled&quot; filesystems is really no different than working with &quot;normal&quot; filesystems. When I build my filesystems as large file enabled I always increase the number of bytes per inode which gives you more usable space in the filesystems which can come in handy. <br>
<br>
Hope this helps you out.<br>
<br>
Dave <p>Dave Hamilton<br><a href=mailto:dhamilton@gio.com.au>dhamilton@gio.com.au</a><br><a href= > </a><br>

 

[MikeLacey]

Sounds reasonable - a question of how many inodes you ask for with mkfs.<br>
<br>
-ml<br>
<p>Mike Lacey<br><a href=mailto:Mike_Lacey@Cargill.Com>Mike_Lacey@Cargill.Com</a><br><a href=

http://www.cargill.com/>

Cargill's Corporate Web Site</a><br>

 

[ElgisRamon]

Did you know you are spending 64Kb (mean) at each file with a size bigger than 32Kb?<br>
<br>
AIX allocates 4Kb fragments for files in normal filesystems and for files under 32Kb in LFE FS's, then<br>
if you lose a half of a fragment then you lose 2Kb for file.... or 64Kb for LFE FS's files.<br>
<br>
E-Mailme for questions

 

[MikeLacey]

Elgis - are you saying that &quot;LFE&quot; file systems *are* different? Could you point us to where this is documented?<br>
<br>
Mike <p>Mike Lacey<br><a href=mailto:Mike_Lacey@Cargill.Com>Mike_Lacey@Cargill.Com</a><br><a href=

http://www.cargill.com/>

Cargill's Corporate Web Site</a><br>

 

[ElgisRamon]

YES. These are different internal structures... but the concept is the same... only you have to remake the file system to change to LFE<br>
<br>
smit crjfslv<br>