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Reboot of Unix servers - recommended?

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Operating Systems Solaris Reboot of Unix servers - recommended?
# 8  
Old 01-25-2007
Quote:
Originally Posted by mr_manny
Do you want to deal w/trying to identify what changed in the last how many months that could contributing to why your box goes into a panic during boot-up?

once a month in this shop Smilie

We have some machines that are every 3 months and some that are every 6 months. Honestly, I would say every month is overkill.
# 9  
Old 01-26-2007
Well here, everything is up for as long as everything works fine and reboot is not required (patch installation, modified kernel params, etc) ... Smilie
# 10  
Old 01-26-2007
Quote:
Originally Posted by Create
We have some machines that are every 3 months and some that are every 6 months. Honestly, I would say every month is overkill.
It's all about downtime...cron takes care of the rest.

If a maintenance window is available, you might as well use it..before they take it away Smilie
# 11  
Old 01-26-2007
Quote:
Originally Posted by mr_manny
Do you want to deal w/trying to identify what changed in the last how many months that could contributing to why your box goes into a panic during boot-up?

once a month in this shop Smilie
Thats what change control is for. If you are maintaining servers in a 24x7 enviroment you need proper change control, even if its not a 24x7 enviroment you should have something in place to track changes. There is no need to have a scheduled reboot. I bet everyone that recomends scheduled reboots has a linux background or has not maintained any 24x7 mission critical servers. Places like Banks, Telcos, Airports and large corporates require 5 9's availability(99.999% uptime).

If you don't have change control and you have a sysadmin in the team that is a cowboy and changes things without documenting them then your solution isn't a scheduled reboot(Sun Solaris doesn't need it). Your work practices need to change to include proper change control and system monitoring to make sure sysadmins are not making changes on the fly without following the change control proccess.

I have maintained servers with uptime over a couple of years that have rebooted fine.
Tornado
# 12  
Old 01-26-2007
Quote:
Originally Posted by Tornado
Thats what change control is for. If you are maintaining servers in a 24x7 enviroment you need proper change control, even if its not a 24x7 enviroment you should have something in place to track changes. There is no need to have a scheduled reboot. I bet everyone that recomends scheduled reboots has a linux background or has not maintained any 24x7 mission critical servers. Places like Banks, Telcos, Airports and large corporates require 5 9's availability(99.999% uptime).

If you don't have change control and you have a sysadmin in the team that is a cowboy and changes things without documenting them then your solution isn't a scheduled reboot(Sun Solaris doesn't need it). Your work practices need to change to include proper change control and system monitoring to make sure sysadmins are not making changes on the fly without following the change control proccess.

I have maintained servers with uptime over a couple of years that have rebooted fine.
+1.


We never reboot a server just to "reboot" it. Servers are only bounced if they need to be for certain service packs etc. etc. An example would be tonight I am rebooting 12 servers that have been up well over a year to update IDS (Intrusion Detection System) software that our IDC is requiring us to do.
# 13  
Old 01-29-2007
Here's a snap I dug up from a few years ago..
Uptime of 1123 days from Sol2.6 x86
Image
click pic for a closeup
Last edited by Tornado; 01-31-2007 at 12:40 AM..
Tornado
# 14  
Old 01-29-2007
Quote:
Originally Posted by mr_manny
It's all about downtime...cron takes care of the rest.

If a maintenance window is available, you might as well use it..before they take it away Smilie

Agreed, only reboot when you have a maintenance window. In basic you do not need to reboot on a "daily"-basis. When you have the time and the opportunity you can do a reboot of the server.

The next opportunity to do is can be some time in the future.

Regards, Johan Louwers.
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