Hi,

07.04.2008 21:10, Ivan Barrera wrote:
...
>> If such a setup is more complex than what you like (which I find 
>>   
> 
> Yep , it is more complex than what i want.
> 
>> absolutely understandable...) then it's easiest to use LVM to create 
>> one big device from the two disks. Either as a RAID or a JBOD-like 
>> device. Note that RAID-0 as well as JBOD increase the risk of 
>> catastrophic failure, so I'd recommend to, at least, use *three* 
>> devices and create a RAID-5 device from it.
>>
>>   
> That's not really a big problem. Both 1.75TB volumes, are iscsi targets,
> from a HP-Sma unit (12x750GB disks, Raid 5).
> Initially we disliked the idea of such a big partition.
> Do you think a 3.5TB partition won't have mayor problems dealing with
> backups files from backula ?

No, I don't see any real problems there. Personally, I'm using XFS for 
my larger file systems, but that's more or less only a matter of taste 
today (IMO).

For a new system, I would use ext3 and perhaps convert to ext4 later.

For Bacula usage, assuming a fast file server backend, the iSCSI 
connection will be the bottleneck for reads and writes (unless you're 
using FC4G or Infiniband).

If you've got a really fast connection, disk throughput will be the 
limiting factor in most cases - seeks and filesystem operation like 
creating files, reading directories etc. don't matter much for Bacula.

The file system you actually use will only have a small effect on 
throughput.

File system reliability is better left to more heated discussions - I 
don't think any of the common linux filesystems has serious issues today.

The future of ReiserFS and Reiser4 is a bit dim, though, so I guess it 
doesn't matter as long as you stick with ext[23], xfs or jfs. gfs2 and 
ocfs2 are probably not really needed for a backup server...

Arno

> (it is using ext3 now)
> 
> 
>> Arno
>>
>>   
>>> Any ideas will be welcome :)
>>>
>>> Thanks
>>>
>>>
>>> -------------------------------------------------------------------------
>>> This SF.net email is sponsored by the 2008 JavaOne(SM) Conference 
>>> Register now and save $200. Hurry, offer ends at 11:59 p.m., 
>>> Monday, April 7! Use priority code J8TLD2. 
>>> http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
>>> _______________________________________________
>>> Bacula-users mailing list
>>> Bacula-users AT lists.sourceforge DOT net
>>> https://lists.sourceforge.net/lists/listinfo/bacula-users
>>>
>>>     
>>   
> 
> 
> -------------------------------------------------------------------------
> This SF.net email is sponsored by the 2008 JavaOne(SM) Conference 
> Register now and save $200. Hurry, offer ends at 11:59 p.m., 
> Monday, April 7! Use priority code J8TLD2. 
> http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
> _______________________________________________
> Bacula-users mailing list
> Bacula-users AT lists.sourceforge DOT net
> https://lists.sourceforge.net/lists/listinfo/bacula-users
> 

-- 
Arno Lehmann
IT-Service Lehmann
www.its-lehmann.de

-------------------------------------------------------------------------
This SF.net email is sponsored by the 2008 JavaOne(SM) Conference 
Register now and save $200. Hurry, offer ends at 11:59 p.m., 
Monday, April 7! Use priority code J8TLD2. 
http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
_______________________________________________
Bacula-users mailing list
Bacula-users AT lists.sourceforge DOT net
https://lists.sourceforge.net/lists/listinfo/bacula-users