Sun Clustering vs. VCS



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    I have a machine runnig Solaris 7, just wonder if it is possible to upgrade directly from Solaris 7 to Solaris 9? The disks on the Solaris 7 machine is mirrored with DiskSuite, when I upgrade it, do I need to break the mirror and take the disk out from the DiskSuite or even remove the DiskSuite package? What is the senario of upgrading when the disks are under DiskSuite? Thanks for advice!
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Sun Clustering vs. VCS

Postby eizner » Wed, 17 Sep 2003 05:04:40 GMT

I'm sure it has been discussed already but I could not find any
helpful thread.
I need to implement HA (Fail Over) solution between two SUN servers,
probably 2x480R + StorEdge S1 Array
I'm considering to use either

1)DiskSuite + Sun Cluster V
2)DiskSuite + VCS.

I'm looking for comparison , advantages and disadvantages for #1 and

Thank you

Re: Sun Clustering vs. VCS

Postby Dragan Cvetkovic » Wed, 17 Sep 2003 05:08:06 GMT

 XXXX@XXXXX.COM  (Costa) writes:

What is Sun Cluster V? What version of Solaris are you going to use?

Bye, Dragan

Dragan Cvetkovic, 

To be or not to be is true. G. Boole      No it isn't.  L. E. J. Brouwer

!!! Sender/From address is bogus. Use reply-to one !!!

Re: Sun Clustering vs. VCS

Postby Lars Tunkrans » Wed, 17 Sep 2003 07:26:16 GMT

OK.  Here is my contribution....

     This is less expensive in small systems.

     BTW the latest SunCluster is version 3.1
     It is also more complex to set up with the qourum disk.
     It is a kernel level cluster implementation.
     Can Use VERY FAST system interconnects ( SCI cards / SUNFire LINK, several
     100 Megabyte/s up to 2.4 GigaBytes/s )
     This is nessesary for LARGE Oracle RealApp clusters.

     can grow to 8 nodes.

    You dont want to do that. If you go for Veritas go the whole way
    and implement  "Veritas Foundation suite HA" which
    is VCS + Veritas Volume manager.

    VCS and VVM setup can be done almost entierly with GUI's
    It is a mixed Kernel/userland implementation. Some Kernel drivers,
     but the main HA-daemon process runs as a REAL-time user proc.
    Fastest usable interconnect is Gigabit ethernet.

     Can grow to 32 nodes.

Lars Tunkrans
smtp: lars dot tunkrans at bredband dot net

Re: Sun Clustering vs. VCS

Postby dol » Wed, 17 Sep 2003 08:06:56 GMT

In article < XXXX@XXXXX.COM >,

OK, rethink this architecture. The S1 will become a single point of failure.
Atleast consider the SE3310 with redundant power supplies, connections 
and controllers.
Will add only a few % to the total cost.

This seems like a disk performance insensitive solution and I would choose 
the simplest and cheapest solution, which would be #1 in this case.


Fredrik Lundholm   
dol @

Re: Sun Clustering vs. VCS

Postby Constantin Eizner » Wed, 17 Sep 2003 11:55:02 GMT

I should have said that:
What is Sun Cluster V? V3.1
What version of Solaris are you going to use? Solaris 8 + DiskSuite 4.1
Number on nodes:                        2 (one in stand by)
Storage size:                                50Gb
Potential growth within 12 month: 100Gb

Thank you

Re: Sun Clustering vs. VCS

Postby Jason Fortezzo » Wed, 17 Sep 2003 13:04:18 GMT

At the very minimum consider two S1 Arrays and mirror between them.
Even better would be to use a FC array like an A5200 or 3310FC.

Last I heard, using SDS with VCS (other than for the root mirror) is not
supported by Veritas.  Foundation Suite HA (VxVM+VxFS+VCS) would be best, but
you could probably get by with VxVM+VCS and use UFS for your filesystems.

What applications do you intend to cluster?  


Jason Fortezzo
usenet at mechanicalism dot net

Re: Sun Clustering vs. VCS

Postby Bertrand Hutin » Wed, 17 Sep 2003 18:36:30 GMT

There are other Cluster products
Fujitsu Siemens PrimeCluster (Solaris & Linux)
Legato Application Availability Manager (Solaris, HPUX, AIX, Linux Windows)

Re: Sun Clustering vs. VCS

Postby eizner » Wed, 17 Sep 2003 23:44:46 GMT

I can get "disk system ds2405" (HP). Will it work?

Re: Sun Clustering vs. VCS

Postby Jason Fortezzo » Thu, 18 Sep 2003 18:06:24 GMT

I don't see that array listed on the VxVM 3.5MP2 HCL [1].  While it may work,
you will not have DMP (multipathing) and Veritas probably will not support your


Jason Fortezzo
usenet at mechanicalism dot net

Similar Threads:

1.Sun Cluster 3 vs.Veritas VCS 3.5

I have used Sun Cluster 3 (with VxVM) in the past, but never VCS; can some
enlighten individual tell me:

The pros and cons of Cluster 3 vs. VCS.
The major differences between the two.

Which you consider the better product and why?



2.Best Practices "Migrating Veritas VCS Cluster to SUN Cluster"


Do you have any Best Practicies or Blueprints Paper?

Thanks for your support


3.Cluster (VCS & Sun on Solaris): Install application package on shared disks

Hi, There

When installing application package on shared disks in a cluster
environment, the node (Node A, let's say) from which you install keeps
package (and patch) information. However, Node B doesn't have such
information even though in a failover situation, it still can see the
package binaries.

Since we can't install a local copy on each node due to space
restriction, is there a way (or workarount, or fool node B) to update
node B on pkginfo wheneven the application has package/patch installed
on node A?

Thanks a lot.


4.Sun Cluster + QFS or Sun Cluster + Veritas

Right now I've got some 3.5 Veritas Clusters running Oracle8
that are due for an upgrade.

I'm playing around with the idea of getting rid of all of
our Veritas software and replacing it with Sun software
(since cluster is now free).

So it would be:

Solaris 10 (01/06 HW release, latest patches)
Sun Volume Manager
Sun Cluster 3.1

I've used Veritas for so long now & am weary of mixing it in
with Sun Cluster.  Ideally - I'd like to just go with one vendor
for my clustering.

Is MPXIO comparable to DMP?  Are people actually running Sun volume 
manager under production Oracle DB's?  I've used SVM for mirroring
boot drives on web servers and app servers but never in the database

I've read that QFS can do the volume management all on it's own -
is that what people are typically using with Sun Clusters?

I'm reading the FAQs and white papers right now but would love to
hear from some people with real world experience with the stuff.


5.Clustering Sun: Sun cluster or Veritas?

Any of you have experience with Sun Cluster software and/or Veritas

I have worked with IBMS HACMP but none of the other solutions.  Even
that was fairly simple active/passive clusters, nothing too fancy.

Any pros/cons to running either Suns cluster software or Veritas' on
Sun systems? Probably either V880s or V1280s.  I have been looking at
the docs. on Suns site about Sun Cluster 3.1 but of course that is
just technical info, always best to hear from others with real
experience too :)


6. Veritas Cluster versus SUN Cluster

7. [udev/vcs] tons of creating/removing /dev/vcs* during boot

8. Sun V480 & D1000 & VCS 4.0 -- SCSI error

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