Anonymous_User Absent Member.
Absent Member.
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VM Dev Tree and Clustering

Greetings,

Our development tree (Netware 6.5 sp7, OES2 Linux, eDir 8.8 sp2)
consists of mostly VM Guest machines (ESX cluster) and a few old
physical machines. I have one elderly physical server that happens to
have a bunch of disk space which I've configured as an iSCSI target. I
set up a two node cluster, both nodes VMs, using the iSCSI san as shared
disk space. All seemed to work beautifully until I tried to migrate
resources. The resource loaded however VMWARE didn't pick up on the ip
address change so you get routed to the wrong server when trying to
access a the migrated resource. I found a post in the VMWare forums
(http://communities.vmware.com/thread/46878) that seems to be the same
issue with a Linux cluster. The solution was to send a manual ARP
update out after the resource migrated. Is there a way to do this on
NetWare? I couldn't find an equivalent to -U for NetWare. Anyone know
how to adjust the VMWare environment so the manual workaround isn't needed?

Thanks,

Travis
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ataubman Absent Member.
Absent Member.

Re: VM Dev Tree and Clustering

NetWare already sends out a gratuious ARP on a resource failover,
otherwise it wouldn't work whether physical or virtual. We have had
issues in the past where routers, specifically Cisco ones, were
configured to reject gratuious ARPS.
--
Andrew C Taubman
Novell Support Forums Volunteer SysOp
http://forums.novell.com/
(Sorry, support is not provided via e-mail)

Opinions expressed above are not
necessarily those of Novell Inc.

Andrew C Taubman (Sorry, support is not provided via e-mail) Opinions expressed above are not necessarily those of Micro Focus.
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Anonymous_User Absent Member.
Absent Member.

Re: VM Dev Tree and Clustering

Yeah, that was my understanding too. I got the impression from the
forum posting that a second one might be needed just to make sure. Is
there a way to manually send a gratuitous arp?

Thanks,

Travis

Andrew C Taubman wrote:
> NetWare already sends out a gratuious ARP on a resource failover,
> otherwise it wouldn't work whether physical or virtual. We have had
> issues in the past where routers, specifically Cisco ones, were
> configured to reject gratuious ARPS.

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ataubman Absent Member.
Absent Member.

Re: VM Dev Tree and Clustering

Not that I'm aware of, no. But if the first one was rejected or ignored,
why would sending a second one help? It will meet the same fate; you
need to diagnose why the first one did not take effect.
--
Andrew C Taubman
Novell Support Forums Volunteer SysOp
http://forums.novell.com/
(Sorry, support is not provided via e-mail)

Opinions expressed above are not
necessarily those of Novell Inc.

Andrew C Taubman (Sorry, support is not provided via e-mail) Opinions expressed above are not necessarily those of Micro Focus.
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Anonymous_User Absent Member.
Absent Member.

Re: VM Dev Tree and Clustering

10-4. Thanks.

Andrew C Taubman wrote:
> Not that I'm aware of, no. But if the first one was rejected or ignored,
> why would sending a second one help? It will meet the same fate; you
> need to diagnose why the first one did not take effect.

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