No, only a couple of specific linux filesystems.  One filesystem contains all 
the UV data and the other has Samba shares.  The OS filesystem isn't replicated 
since it contains server-specific config files along with the replication 
software itself.  We're using Steeleye's LifeKeeper for replication.

-John

-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Address
Sent: Wednesday, December 16, 2009 6:53 AM
To: U2 Users List
Subject: Re: [U2] Unidata 6.1 Replication

Do you replicate every file on the server ?

--- On Wed, 12/16/09, John Hester <[email protected]> wrote:

> From: John Hester <[email protected]>
> Subject: Re: [U2] Unidata 6.1 Replication
> To: "U2 Users List" <[email protected]>
> Date: Wednesday, December 16, 2009, 1:00 AM Brad is right.  You can 
> get bitten by OS-level replication with U2 because hashed files 
> require more than one write when a record has to go to overflow space.  
> If the primary box crashes when only one of these writes is done, the 
> secondary box will have a corrupted file.  There are also issues with 
> UV dynamic files (don't know about UD) because some of the file 
> structure information is cached in memory and not immediately flushed 
> to disk.  We do OS-level replication on UV and got around these issues 
> by sizing all files to use no overflow and only using dynamic files 
> for temp report work files.
> 
> -John
_______________________________________________
U2-Users mailing list
[email protected]
http://listserver.u2ug.org/mailman/listinfo/u2-users

Reply via email to