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
Apache::Session::Store::Oracle(3pm)			User Contributed Perl Documentation		       Apache::Session::Store::Oracle(3pm)

NAME
Apache::Session::Store::Oracle - Store persistent data in a Oracle database SYNOPSIS
use Apache::Session::Store::Oracle; my $store = new Apache::Session::Store::Oracle; $store->insert($ref); $store->update($ref); $store->materialize($ref); $store->remove($ref); DESCRIPTION
Apache::Session::Store::Oracle fulfills the storage interface of Apache::Session. Session data is stored in a Oracle database. SCHEMA
To use this module, you will need at least these columns in a table called 'sessions': id varchar2(32) # or however long your session IDs are. a_session long To create this schema, you can execute this command using the sqlplus program: CREATE TABLE sessions ( id varchar2(32) not null primary key, a_session long ); If you use some other command, ensure that there is a unique index on the table's id column. CONFIGURATION
The module must know what datasource, username, and password to use when connecting to the database. These values can be set using the options hash (see Apache::Session documentation). The options are DataSource, UserName, and Password. Example: tie %hash, 'Apache::Session::Oracle', $id, { DataSource => 'dbi:Oracle:database', UserName => 'database_user', Password => 'K00l' }; Instead, you may pass in an already-opened DBI handle to your database. tie %hash, 'Apache::Session::Oracle', $id, { Handle => $dbh }; The last option is LongReadLen, which specifies the maximum size of the session object. If not supplied, the default maximum size is 8 KB. AUTHOR
This modules was written by Jeffrey William Baker <jwbaker@acm.org> A fix for the commit policy was contributed by Michael Schout <mschout@gkg.net> SEE ALSO
Apache::Session, Apache::Session::Store::DBI perl v5.10.1 2010-10-18 Apache::Session::Store::Oracle(3pm)
All times are GMT -4. The time now is 05:53 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy