What is your upgrade strategy? Post: 302513130

Sponsored Content

Top Forums UNIX for Advanced & Expert Users What is your upgrade strategy? Post 302513130 by DGPickett on Tuesday 12th of April 2011 12:03:46 PM

04-12-2011

Registered User

Well, if your apps can float on many hosts redundantly, then you can pull each host in rotation for upgrades with relative ease. Applications with persistent tcp connections and with state in server memory are a problem. Sometimes, you can put a web front end on them, or push the state into a flat file mmap'd to the apps running on many machines. Files should be SAN or mirrored between machines, so they do not disappear as you rotate machines in and out. An optimal configuration is for the hosts to be a sort of liquid resource, where you can add a host in and the storage, query, churn and CPU use is attracted to the new host until a balance is achieved.

DGPickett

View Public Profile for DGPickett

Find all posts by DGPickett

4 More Discussions You Might Find Interesting

1. Solaris

What is an Ideal Backup Strategy

Hi, we have a solaris setup in our company and i have been assigned on a project of planning a backup strategy . ours is a midium level company. please help me so that i can plan an Ideal Backup Strategy. Thanks, Una

2. AIX

Installation strategy

I am planning to upgrade the Operation system from AIX 4.3.3 to AIX 5L. The problem is that the current machine where the OS is installed will be replaced by a new machine. I understand that I have to make a "New Installation" for the new machine. But what about the volume groups, user volume...

3. UNIX for Dummies Questions & Answers

Strategy to concatenate and backup files

I need to be able to concatenate all the files in a directory into a new filename and a different directory. I want to append the date in YYYYMMDD format to the new filename (ie, newfilename_20090207). The original files will have different filenames so I will need to be able to loop thru each...

4. AIX

UNIX authentication strategy - LDAP or AD

We are looking at using Tivoli Directory Server (LDAP) or Active Directory 2003 for authentication. I wanted to get some feedback from the community. Our goal is to do it the simplest, easiest, and cheapest way that allows for centralized user authentication. We are mainly an AIX environment with...

LEARN ABOUT OPENSOLARIS

rup

rup(1C) 						      Communication Commands							   rup(1C)

NAME

       rup - show host status of remote machines (RPC version)

SYNOPSIS

       rup [-hlt]

       rup [host]...

DESCRIPTION

       rup gives a status similar to uptime for remote machines. It broadcasts on the local network, and displays the responses it receives.

       Normally,  the  listing	is in the order that responses are received, but this order can be changed by specifying one of the options listed
       below.

       When host arguments are given, rather than broadcasting rup only queries the list of specified hosts.

       A remote host will only respond if it is running the rstatd daemon, which is normally started up from inetd(1M).

OPTIONS

       -h    Sort the display alphabetically by host name.

       -l    Sort the display by load average.

       -t    Sort the display by up time.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWesu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       ruptime(1), inetd(1M), attributes(5)

BUGS

       Broadcasting does not work through gateways.

SunOS 5.11							    13 Feb 1991 							   rup(1C)