Sponsored Content
Operating Systems Solaris Can we configure link based IPMP in private connectivity in Oracle RAC Post 302771045 by DGPickett on Tuesday 19th of February 2013 11:56:00 AM
Old 02-19-2013
Actually, it will take about 3.2 seconds on average coax, because it does not propagate at full light speed.

When at Honeywell, the IRS bought additional one microsecond cycle core memory for their H-2050 from Cambridge Memories. Somehow someone made some parallel interface cables with slower dialectrics or different effective conducter diameters: slow coax! While they did not exceed cable length, the timing was too late. As my friend Jasper Farrington told them, 9 nanoseconds late is still late. Late means broken.

The ARRL Handbook I perused throught my youth ARRL Handbook 2013 had interesting tables on how much to shorten an antenna from the nominal quarter wave length for different conductor diameters and such. Interestingly, a quarter wave whip over a ground plane is 75 ohms like many flavors of coax, and a half wave antenna with the ends connected together is 300 ohms, so you can make a nice antenna from 300 ohm flat lead, shorting the ends and attaching the 300 ohm feed in the middle, or sometimes a little off middle to widen the banwidth for shorter and longer half waves. You see this on a lot of FM sets, where the 100 MHZ into 300 million meters per second gives you a 1.5 meter antenna, but a bit shorter as the propagation is a bit slow. These work on VHF tv as well, as FM is adjacent to channel 6, which many FM radios can hear at the bottom.
 

3 More Discussions You Might Find Interesting

1. Solaris

Link based Active Active IPMP

Hi, I need to configure 4 ip address (same subnet and mask) in one ipmp group (two interfaces) in an active active formation (link based). Can some one provide the steps or a tutorial link. Thanks (2 Replies)
Discussion started by: Mack1982
2 Replies

2. Solaris

IPMP on Private interconnects

I have a Oracle dbase running in a Solaris 10 cluster and have two private interconnects that are being used for communication. Is there any way to connect these two interconnects together using IPMP for redundancy? I've made several attempts with no luck so far and was wondering if anyone had... (17 Replies)
Discussion started by: goose25
17 Replies

3. Solaris

Link Based IPMP on Shared IP Solaris Zone

Hi, This may have already been raised previously so sorry for the duplication. What I want to achieve is have a physical server using link based IPMP setup in the global zone (not problem doing that) and then create a zone set as Shared-IP so when the servers NIC has an issue the IP will... (0 Replies)
Discussion started by: giles.cardew
0 Replies
DBIx::Class::Storage::DBI::Oracle::WhereJoins(3pm)	User Contributed Perl Documentation	DBIx::Class::Storage::DBI::Oracle::WhereJoins(3pm)

NAME
DBIx::Class::Storage::DBI::Oracle::WhereJoins - Oracle joins in WHERE syntax support (instead of ANSI). PURPOSE
This module is used with Oracle < 9.0 due to lack of support for standard ANSI join syntax. SYNOPSIS
DBIx::Class should automagically detect Oracle and use this module with no work from you. DESCRIPTION
This class implements Oracle's WhereJoin support. Instead of: SELECT x FROM y JOIN z ON y.id = z.id It will write: SELECT x FROM y, z WHERE y.id = z.id It should properly support left joins, and right joins. Full outer joins are not possible due to the fact that Oracle requires the entire query be written to union the results of a left and right join, and by the time this module is called to create the where query and table definition part of the SQL query, it's already too late. METHODS
See DBIx::Class::SQLMaker::OracleJoins for implementation details. BUGS
Does not support full outer joins. Probably lots more. SEE ALSO
DBIx::Class::SQLMaker DBIx::Class::SQLMaker::OracleJoins DBIx::Class::Storage::DBI::Oracle::Generic DBIx::Class AUTHOR
Justin Wheeler "<jwheeler@datademons.com>" CONTRIBUTORS
David Jack Olrik "<djo@cpan.org>" LICENSE
This module is licensed under the same terms as Perl itself. perl v5.14.2 2011-05-10 DBIx::Class::Storage::DBI::Oracle::WhereJoins(3pm)
All times are GMT -4. The time now is 04:13 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy