Re: [ilugd] FTP error while running script in cron
Amit Sharma amit_...@... writes: Lets See! One more thing to check is that in console mode and in cron mode the file transferred across is in bin mode. In the script, for the EOT here-doc stick in bin in before you put the file. In console mode use type to check the status (or just type bin anyway). ascii and bin *should* both take up the same space, but maybe there is a compressed file system on the server which coupled with ascii vs bin is causing the discrepancy. PJ ___ ilugd mailinglist -- ilugd@lists.linux-delhi.org http://frodo.hserus.net/mailman/listinfo/ilugd Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi http://www.mail-archive.com/ilugd@lists.linux-delhi.org/
[ilugd] [OT] Now Big Brother wants your DNS...
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Google's Anycasted Public DNS resolvers http://code.google.com/speed/public-dns/index.html - -- They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety. -- Benjamin Franklin, Memoirs of the life and writings of Benjamin Franklin -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.13 (GNU/Linux) iEYEARECAAYFAksYFOQACgkQHy+EEHYuXnTEEQCfVajAdOVnXyc/dnTHHEwH8BRR /IoAoOOE5aRgNwpJu6tafO4DrdWIV3r5 =PAGg -END PGP SIGNATURE- ___ ilugd mailinglist -- ilugd@lists.linux-delhi.org http://frodo.hserus.net/mailman/listinfo/ilugd Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi http://www.mail-archive.com/ilugd@lists.linux-delhi.org/
[ilugd] Things to consider for Server Utilization
Hi, We have a few hundred physical *nix servers and thinking of virtualizing them. So, could you please tell how to go about virtulizating them. The first step would be obviously to calculate the actual utilization of hardware for each server. So, what are the things to consider while calculating the utilization of a server. Thanks Regards, Smruti -- I took the red pill. ___ ilugd mailinglist -- ilugd@lists.linux-delhi.org http://frodo.hserus.net/mailman/listinfo/ilugd Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi http://www.mail-archive.com/ilugd@lists.linux-delhi.org/
Re: [ilugd] Things to consider for Server Utilization
Hi Smruti, It is possible to dynamically resize both the processing and storage clusters, so it isn't necessary to start with estimates of utilization necessarily. Though, where the application requires a lot of storage or quick disk access, this will affect the types of disks used and protocols, that is, whether you require a SAN using iSCSI or Fibre Channel with SCSI disks at what rpm or something faster. Put together a base image that can be mirrored with application software. Assign some reliable high-end or dedicated hardware nodes as cluster fences. Fencing protects your information in the case of a node failure in the cluster. Determine if you'd like Network Attached Storage, for network available storage and the filesystem, or a SAN, if you'd like to see block devices and let the clients handle the filesystem. Source some dedicated hardware or make the appropriate partitions on each node and make these network visible. RedHat Enterprise Linux has some software for managing clusters, Conga, with support for fencing and dynamic resizing, for example. Meet luci and rici. There is software available for distributing work to the nodes, copying scripts to each, remotely rebooting, installing to all nodes etc. Without a lot more information on the application, your question is difficult to answer. Hope that helps, Rahul 2009/12/4 Smruti smrutiman...@gmail.com: Hi, We have a few hundred physical *nix servers and thinking of virtualizing them. So, could you please tell how to go about virtulizating them. The first step would be obviously to calculate the actual utilization of hardware for each server. So, what are the things to consider while calculating the utilization of a server. Thanks Regards, Smruti -- ___ ilugd mailinglist -- ilugd@lists.linux-delhi.org http://frodo.hserus.net/mailman/listinfo/ilugd Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi http://www.mail-archive.com/ilugd@lists.linux-delhi.org/
Re: [ilugd] Things to consider for Server Utilization
2009/12/4 Smruti smrutiman...@gmail.com: Hi, We have a few hundred physical *nix servers and thinking of virtualizing them. So, could you please tell how to go about virtulizating them. The first step would be obviously to calculate the actual utilization of hardware for each server. So, what are the things to consider while calculating the utilization of a server. Thanks Regards, Smruti On Fri, Dec 4, 2009 at 7:02 AM, Rahul Bhargava rhlbh...@gmail.com wrote: Hi Smruti, It is possible to dynamically resize both the processing and storage clusters, so it isn't necessary to start with estimates of utilization necessarily. Though, where the application requires a lot of storage or quick disk access, this will affect the types of disks used and protocols, that is, whether you require a SAN using iSCSI or Fibre Channel with SCSI disks at what rpm or something faster. Hi Rahul, First of all thanks a lot for the detailed mail. It will help me a lot. But what I am concerned about right now, is to find out the actual utilization of each physical server. This is how I can determine how many applications I can club into what kind of machines. Some applications are home made and some are like SAP and Oracle DBs. I am planning to calculate the utilization of each server over a week and month's time. Also want to calculate the peak load it gets and when does it get that. I am looking at resources such as CPU, Physical M/m, swap space, NIC and FC Card utilizations. Please add whatever else comes to your mind that I should consider too. Assign some reliable high-end or dedicated hardware nodes as cluster fences. Fencing protects your information in the case of a node failure in the cluster. Yes, every global zone will be clustered. Determine if you'd like Network Attached Storage, for network available storage and the filesystem, or a SAN, if you'd like to see block devices and let the clients handle the filesystem. Source some dedicated hardware or make the appropriate partitions on each node and make these network visible. About the storage, all the user and application data is already in NAS and SAN. So, I won't be much worried about that. RedHat Enterprise Linux has some software for managing clusters, Conga, with support for fencing and dynamic resizing, for example. Meet luci and rici. And most of the machines are Solaris, so the chosen way to go is Zones. Thanks again for the quick response. You guys rock!! Regards, Smruti -- I took the red pill. ___ ilugd mailinglist -- ilugd@lists.linux-delhi.org http://frodo.hserus.net/mailman/listinfo/ilugd Archives at: http://news.gmane.org/gmane.user-groups.linux.delhi http://www.mail-archive.com/ilugd@lists.linux-delhi.org/
