Hello Wouter and *, since August 2011 I run an Experimanental-Cloud with 20 IBM eServe x345 and 40 IBM eServer x335... Enough machines to play with it.
Since 3 weeks I now have my two 400V/32A/3P CEE Wallets for my two Severracks in my office. Am 2011-10-13 19:38:12, hacktest Du folgendes herunter: > "Provide a simple way of mounting almost the entire system read-only and > share it between multiple hosts to save maintenance and space," is what > that wiki page says, but I'm not convinced. In theory, you can already > share /usr between multiple systems today; but nobody does it, because I was thinking on this, but HOW does this work with the config files? Is thre a Debian HOWTO which descibe this? If software change and the old config is not more compatibel with the nw binaries, your system could become instable... and runing a Cluster or a Cloud with a view dozen, some 100 or 1000 Servers will bring down our entired system. Is thee a HOWTO how to solv this? However, all of my systems have /dev/sda1 1000 MByte Rescue /dev/sda2 xxxx MByte swap /dev/sda3 10000 MByte /tmp /dev/sda5 2000 MByte /Production_1 /dev/sda6 3000 MByte /Production_1_var_log /dev/sda7 2000 MByte /Production_2 /dev/sda8 3000 MByte /Production_2_var_log So, normal I run "Production 1" (mounted as /) and have always a seond system too bootup. If something goes realy wired, I a boot "Rescue". Now I can update the Second (not runing) production system without any hassless > - Keeping your software on a central fileserver introduces a single > point of failure that you don't have if you don't do the central > fileserver thing Yeah! If it goes down, you have no network anymore... Iprefer this fileserver in an heavyly secured environment and sync my production systems from there if needed. > - Moving more off / and into /usr does not free you of the need to > synchronize stuff across your systems (you have less to synchronize if > you only need to do /etc, but that's actually the hardest part to > synchronize) FullACK My "rsync" on /usr take only 10-20 seconds per server (the sync server has 10GE interfaces to the internal switch and the serves are hanging with there second Eth on this switch) > - Frankly, in today's world, the amount of storage you need for your > software often pales in comparison to the amount of storage you need > for your data. I've rarely had to maintain a network of more than just > a few systems that had more than 10G worth of software locally > installed. When was the last time you bought a 10G hard disk? If > you're still having / be on local disk, you're still going to need a > local hard disk. Let's say you can still find a 146G SAS disk > somewhere -- that leaves you with 136G of wasted space anyway. :-D In some of my systems I use 4 GByte CF-Cards with an SATA/PATA adapter because I do not need more Diskspace (my master DNS Server is such case) > I think it's a bad idea. ;-) > The volume of a pizza of thickness a and radius z can be described by > the following formula: > > pi zz a LOL Thanks, Greetings and nice Day/Evening Michelle Konzack -- ##################### Debian GNU/Linux Consultant ###################### Development of Intranet and Embedded Systems with Debian GNU/Linux Internet Service Provider, Cloud Computing <http://www.itsystems.tamay-dogan.net/> <http://www.debian.tamay-dogan.net/> itsystems@tdnet Jabber linux4miche...@jabber.ccc.de Owner Michelle Konzack Gewerbe Strasse 3 Tel office: +49-176-86004575 77694 Kehl Tel mobil: +49-177-9351947 Germany Tel mobil: +33-6-61925193 (France) USt-ID: DE 278 049 239 Linux-User #280138 with the Linux Counter, http://counter.li.org/
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