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тАО12-20-2005 08:13 PM
тАО12-20-2005 08:13 PM
Clustering over the network.
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тАО12-20-2005 08:24 PM
тАО12-20-2005 08:24 PM
Re: Clustering over the network.
Is this existing running hardware ?
VMS versions
Alpha hardware being used
Network interfaces in the box
local or shared disk storage ? (SCSI, FC, etc)
Do the systems share a system disk ?
How far apart are they (feet or miles) ?
A >>> SHOW CONFIG & >>> SHOW DEV would help too.
HP OVMS Documention set for recent os
http://h71000.www7.hp.com/doc/os82_index.html
Best Regards,
John.
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тАО12-20-2005 08:28 PM
тАО12-20-2005 08:28 PM
Re: Clustering over the network.
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тАО12-20-2005 08:32 PM
тАО12-20-2005 08:32 PM
Re: Clustering over the network.
What i've is two alpha DS 20 boxes. I'm pretty new to clustering so please help me to begin from the scratch. These two boxes are inthe same room ten ft. apart.
The version of the VMS is 7.3. 512MB ram each. I want to share the same system disk.
Regards,
Ajish
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тАО12-20-2005 08:40 PM
тАО12-20-2005 08:40 PM
Re: Clustering over the network.
>>> SHOW CONFIG
>>> SHOW DEV
You may already have this output. if not, this needs to be done from the system console with the system down. Failing that, with the system up,
$ ANAL/SYS
SDA> CLUE CONFIG
Thanks
John.
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тАО12-20-2005 08:40 PM
тАО12-20-2005 08:40 PM
Re: Clustering over the network.
For LAN-Based clusters, see:
http://h71000.www7.hp.com/doc/73final/6318/6318pro_004.html#config_guide_lan_h
Since you do not mention shared storage for the 2 boxes, one of them must be a satellite of the other. To configure this, see:
http://h71000.www7.hp.com/doc/73final/4477/4477pro_013.html#build_cluster
and
http://h71000.www7.hp.com/doc/73final/4477/4477pro_017.html#general_sat_booting
Regards,
Kris (aka Qkcl)
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тАО12-21-2005 01:09 AM
тАО12-21-2005 01:09 AM
Re: Clustering over the network.
Your configuration would help.
All nodes must have nisc_load_pea0 1
vaxcluster 2
cluster_authorization.dat must have the same
group number and password. This is done in sysman
config set cluster/group=/pass=
or during
Now, network connectivity is critical.
While tcpip or DECNET can accept a degrade in performance, clustering will not. It is recommended you have a separate LAN for clustering.
What kind of network? Gigabit?
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тАО12-21-2005 05:42 AM
тАО12-21-2005 05:42 AM
Re: Clustering over the network.
Also, I'd consider at least 2 redundant network segments. With only two Alphas, you can use a cross over cable between two interfaces.
You'll also need to have clustering licenses available.
Welcome to the VMS forum.
Andy
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тАО12-21-2005 05:45 AM
тАО12-21-2005 05:45 AM
Re: Clustering over the network.
SCSI or SAN?
You run cluster config and add a root for each node?
If they boot like a satelite let us know.
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тАО12-21-2005 08:12 AM
тАО12-21-2005 08:12 AM
Re: Clustering over the network.
> for clustering.
Of course, local-area VAX clusters were
developed using 10Mb/s Ethernet, often with
only one NI card per system, so a slow
network is not a guarantee of failure.
More and better hardware usually improves
speed, but it may not always be needed.