Hi Colwell,
I'm using EXT4 on 2 TSM Servers. One of them do I have full controll of and it 
works fine.
The other Linux system to I only see twice a year. But the customer normally 
drop me emails if he got something wrong.

But the same problem with EXT4 as with EXT3 is that you need to pre allocate 
all volumes before and not let TSM create them on-demand.

Best Regards
Christian Svensson

Cell: +46-70-325 1577
E-mail: Christian.Svensson AT cristie DOT se
Skype: cristie.christian.svensson
Supported Platform for CPU2TSM:: 
http://www.cristie.se/cpu2tsm-supported-platforms

________________________________________
Från: Colwell, William F. [bcolwell AT DRAPER DOT COM]
Skickat: den 28 oktober 2010 22:08
Till: ADSM-L AT VM.MARIST DOT EDU
Ämne: Linux ext4 filesystems - is anyone using them for devt=file storage?

Hi,



I am running 2 6.1 servers on rhel 5.5.  I am doing a lot of doing
dedup.  All primary storagepools are

devicetype file.  Current I have 10 16TB ext3 filesystems on raid 6
Sata.  All volumes are

scratch allocations.



I have another 96TB ready to go.  I haven't made the filesystems yet.
So my question is if anyone

is using ext4 yet as the filesystem type for TSM storagepools.



>From my initial reading, I think the extent allocation feature would be
very useful.

See http://en.wikipedia.org/wiki/Ext4



I opened a pmr today to ask if IBM would support servers using ext4, and
they just called back!

They will support servers using ext4 for file storage.  (But not for
client backups yet).



Also, is anyone using ext4 for the database?



Thanks,



Bill Colwell

Draper Lab