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Full Discussion: Right On Time, Somewhere
The Lounge War Stories Right On Time, Somewhere Post 302590365 by admin_xor on Monday 16th of January 2012 02:12:42 AM
Old 01-16-2012
Smilie Thanks for sharing your story. It's very true that most of the times we do not bother to check the time of the clock before scheduling stuffs.

We maintain IT infrastructure for a big pharma company. For any SLA (service level agreement) breach, my employer has to pay a real big amount of money to the client. Now that's been told, once my colleague had to schedule a maintenance on an AIX server. We have a procedure to do that. There's a lot of approvals from service delivery managers of both the client and our company required. After getting those, this guy went on scheduling the reboot of the machine in maintenance mode in cron a day before. The next day, I got a call from IT Incident management people saying a server is down before it's scheduled maintenance window. It happened around 20 minutes before the scheduled time. We had to raise a severity for this. Upon checking the root cause of this later, we found somehow the server was failing to sync with the NTP server and the clock was going 20 minutes faster than the actual time.

And yes, because of all these, we breached the SLA! Smilie
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GEOIP_NETSPEEDCELL_BY_NAME(3)						 1					     GEOIP_NETSPEEDCELL_BY_NAME(3)

geoip_netspeedcell_by_name - Get the Internet connection speed

SYNOPSIS
string geoip_netspeedcell_by_name (string $hostname) DESCRIPTION
The geoip_netspeedcell_by_name(3) function will return the Internet connection type and speed corresponding to a hostname or an IP address. This function is only available if using GeoIP Library version 1.4.8 or newer. This function is currently only available to users who have bought a commercial GeoIP NetSpeedCell Edition. A warning will be issued if the proper database cannot be located. The return value is a string, common values are: o Cable/DSL o Dialup o Cellular o Corporate PARAMETERS
o $hostname - The hostname or IP address. RETURN VALUES
Returns the connection speed on success, or FALSE if the address cannot be found in the database. EXAMPLES
Example #1 A geoip_netspeedcell_by_name(3) example This will output the connection speed of the host example.com. <?php $netspeed = geoip_netspeedcell_by_name('www.example.com'); if ($netspeed) { echo 'The connection type is: '. $netspeed; } ?> The above example will output: The connection type is: Corporate PHP Documentation Group GEOIP_NETSPEEDCELL_BY_NAME(3)
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