<x-flowed>Dave,
>hi again,
>
>In the middle of upgrading a number of servers so lots of issues coming
>to light:
>
>1/ Is there any guideline for the max number of virtual hosts per
>server?. I know server spec will have a lot to do with it but lets say
>its a g4 with 512mb ram and 8 gb internal drive. These are dedicated
>Apache servers so no DNS, mail or workstation apps running. Squid is
>disabled too. At the moment I have a number of these servers running
>about 40-50 sites each. The older version of iTools has been behaving
>oddly for a number of weeks so going to bite the bullet and move on up
>to 6.1 on 10.0.4. Each server averages about 100K hits a day across the
>50 sites.
It all depends on the traffic and the size of the hits.
>In an ideal world I would like to think I could safely run 100 sites per
>server, is this realistic?
I should think that it could easily handle two times as much though.
>
>2/ I have a G4 server with iTools 6.0 on 10.0.4. It is configured to run
>customer JSP's with Tomcat and also PHP scripts. If I run the iTools 6.1
>installer as per the release notes, will i lose all my configuration
>data? (tomcat config, apache config, user database etc).
No, no config should be lost.
>
>3/ To upgrade from OS X Server (old version) to 10.0.4 I need to rebuild
>the OS from scratch, erasing the hard disk. With a moderate number of
>sites on the server and customer SLA's I can't back up the sites,
>install and restore. I have to temporarily relocate the sites onto
>another iTools server, do the install and move them back again. While
>this is messy (needs DNS changes with propagation delays on both sides
>of the move) it should work. Are there any shortcuts I should be aware
>of?
Not really, we will have a paper on upgrading soon, rather than wait
for 2 DNS changes you may want to set up a route in your router to
redirect all traffic from one ip to the other. This will give no
downtime while you install rather than the excruciating difficulties
with DNS propagation.
>
>4/ Finally, we are about to introduce a centralised backup server on the
>network (mixed with NT, Win2k, OSX, Linux). We will most likely be using
>a high speed DLT drive and ArcServeIT with appropriate agents. As no
>agent exists for OSX we will tar up the correct directories and FTP'em
>over to a Win2K server on a cron job. Am I correct in assuming the
>directories to be tar'd are:
>
>/Library/WebServer
>/private/etc/httpd
You may want to back up the whole /etc folder as to get all of your
DNS settings and private keys.
>
>In a disaster recovery scenario I should be able to clean install OSX
>and iTools onto the repaired server (same network config) and simply
>replace the directories with the ones from above?
>
>Lots of questions but I think the answers could be useful to others,
>
>thanks again,
>
>dave.
>
>
>
>Dave Reddy
>Weblink Internet Ltd.
>5 Fitzwilliam Place, Dublin 2, Ireland.
>T: +353 1 250 0000 F: +353 1 250 0099 DDI:+353 1 250 00 33
TTS
--Jeff
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