Many people have looked at both. See:

http://www.eng.auburn.edu/pub/mail-lists/ssastuff/sdsvxvm.html

I go with the same reasonings as David_Cornely AT intuit DOT com. In fact, for 
my
master backup server, I have the OS and /opt/openv on disksuite mirrored
disks, which are backed up to a standalone DLT drive (that the solaris
install media can talk to) using ufsdump in addition to the standard
veritas NBU backup.

BB

on Tue, Jan 20, 2004 at 08:44:42PM -0500, Coco, Samuel (Cont, ARL/CISD) <scoco 
AT arl.army DOT mil> wrote:
> I concur.  We have attempted both and have found the Disk Suite is the better 
> of the two. We have an older E 3000 running Sol 8 and Veritas 4.5 FP3.  We 
> have Dell storage arrays attached and configured.
>  
> Samuel J. Coco  FAM
> 
>       -----Original Message----- 
>       From: Cornely, David [mailto:David_Cornely AT intuit DOT com] 
>       Sent: Tue 1/20/2004 3:39 PM 
>       To: veritas-bu AT mailman.eng.auburn DOT edu 
>       Cc: 
>       Subject: RE: [Veritas-bu] Disk Suite vs. Veritas vol. mgr
>       
>       
>       I think there is a Volume Manager mailing list, you might try there as 
> well but I'll tell you what I think.
>       From what I've seen and done they both have their places.  My 
> suggestion is to use DiskSuite to mirror your internal root disks and then 
> use Volume Manager to configure your array disks.  The reasons:
>        
>       -Root disk recoverability is easier with Disksuite than Veritas as vxvm 
> encapsulation and vxunroot are not flexible if you stray at all from expected 
> norms
>       -Rootdg can be made with leftover slices from the root disks, no need 
> to eat up and entire disk - check this link to learn how:
>       http://unixway.com/vm/veritasvm/rootdg.html
>       -Veritas has disk groups which offer flexibility that disksuite just 
> doesn't have (importing, deporting, etc...)
>        
>       Hope this helps.
>        
>       -Dave
> 
>               -----Original Message-----
>               From: veritas-bu-admin AT mailman.eng.auburn DOT edu 
> [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu]On Behalf Of Schaefer, 
> Harry
>               Sent: Tuesday, January 20, 2004 12:06
>               To: veritas-bu AT mailman.eng.auburn DOT edu
>               Subject: [Veritas-bu] Disk Suite vs. Veritas vol. mgr
>               
>               
> 
>               We are building out an array of ATA disks direct attached to a 
> Sun server running Solaris 8 for some disk based backups. Anyone know of any 
> pros & cons of using Solaris disk suite vs. Veritas volume manager? Currently 
> I have a lot of experience with disk suite. If vol. mgr. is that much better, 
> I will figure out how to use that...
> 
>               Thanks, 
>               Harry S. 
>               Atlanta 
> 
> 
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