Very well, after realizing the Informix installation on Debian, now we are going to see as we can have high information availability with the technology that Informix incorporates, HDR.

HDR is completely integrated to the Informix engine, this and a philosophy very similar to Unix turns out to be in the made simple-mindedness a reality. Since one will see it is much simpler than initially he can dream the concept.

Today one of rápidooooo ….pero hoped that to that you administer Informix it should serve to you, to me personally it me has been many utility to be able to extract a list of tablas/index and his corresponding dbspaces to be able to do a post-analysis of an import of a finished db.

Here I leave it to you:

Do we already have the monitored services? Yes? We are going then to monitor the hardware, this so important part and sometimes so díficil of controlling since often we have the machines in a byline center remotely or simply we have not the necessary time to realize the basic checkeos. Vamos entonces a monitorizar el hardware, esa parte tan importante y a veces tan díficil de controlar ya que muchas veces tenemos las máquinas en un data center remoto o simplemente no disponemos del tiempo necesario para realizar los checkeos básicos.

If we use already nagios, we can have the hardware monitored like services associated with the servants.

Today we are going to see like realizing the installation of Informix Dynamic Server on Debian GNU/Linux (stable/lenny). We will see that it is a very direct installation, without big complications.

As the target is simply to realize the installation, we will do everything for defect, will create the demonstration database to be able to see that it works quite correctly. We will use cooked fields or flat files, without LVM or other forms of management of storage.

Very well, already about time eh?? it is sure that google also has noticed it and is leaving us in the last places of the searches ….f *** k or spider!!! !!

Well, to what we were going … approximately one month ago I have changed of work … I hope with it to have a little of life … I even am taking the rhythm, am beginning working with technologies different from those that it was accustomed, but good … it is always interesting to change airs and to learn cosituated piece of news ….tengo earring of beginning a series of posts ;) relaccionados with Informix of IBM … if if I have left Oracle … now when the aftertaste was beginning taking him.

On the other hand, I am working with Xen and how they had already commented to me on having come to the new work, we have a memory problemilla in the hosts, not in the VMs. Yesterday, the problem arose, the hosts are limited to 512MiB of RAM to leave the possible maximum free for the allocation to VMs. Analyzing the situation I realized that the problem is not in the Xen, if not in the demon of SNMP that after a few weeks working was using ~250MB of memory … obviously this it provokes the host that does swapping like a madman … Analizando la situación me di cuenta que el problema no esta en el Xen, si no en el demonio de SNMP que después de unas semanas funcionando estaba usando ~250MB de memoria…evidentemente esto provoca al host que haga swapping como un loco…

Very well, we are already here to assist to  Magirus OpenHouse ’10 tomorrow to 9a.m. it will start.

Principally we have come for proper taste, not for work, although therefore it is possible to read, the event is much focused on quite concrete certain sectors. The two have registered like what we are, Systems analysts, and to see that it happens.

It looks that, at least I, me am going to like enough although I am afraid that it leaves me by half, since in this type of conferences it is not deepened very much and there happen many strokes of things that leave you drooling.

Very well, it seems that if instead of doing posts lengths, I do short, I write that more ….no I will speak much of the topic just in case

Now we are going to create a storage pool in KVM with libvirt, we will use the VG that we create in the previous post of pool of the following way:

East is going to be rapid and brief but I hope that it should help you as to me. He needed to reduce a Volume Group (VG) to create other, the original (vggentoo) was composed by two devices RAID1 for software (md0 and md9).

Did the result of the operation have to be 2 VGs, vggentoo with md9 and vgkvm with md0 and as I have done it?

sergio@thor: ~ $ sweated vgdisplay-v vggentoo

We make sure that what we have occupied in md0 us fits in md9.

sergio@thor: ~ $ sweated pvmove - to and/dev/md0/dev/md9
/dev/md0: Move: 0.3 %
/dev/md0: Move: 0.6 %
…

This Christmastime we have decided to disconnect of everything and all and to go to see our first completely white Christmastime. The first stop was Oslo, in Norway, where we could enjoy a few completely covered with snow Christmastime but on the other hand slightly boring since apparently they have the very present Christmas customs and do not allow to be not at all open sea from December 24 until December 27, up to January 1 opening is quite optional.

For this motive we could neither see almost anything, just nor go shopping!!! once come the day of going away, we were taking little bad mouth flavor, not for Oslo if not for the holidays ….y we say that ….casualidades of the life we lost the flight back and for more coincidences of the life there appeared before us the option to we stay two more days in Oslo ….o for a reasonable price to go to London (where I was sure that the consumerism would be many present m's). una vez llegado el dia de irnos, nos llevabamos un poco de mal sabor de boca, no por Oslo si no por las vacaciones….y digamos que….casualidades de la vida perdimos el vuelo de vuelta y por más casualidades de la vida se nos presentó la opción de quedarnos dos días más en Oslo….o por un módico precio irnos a Londres (donde yo estaba seguro que el consumismo estaría mucho m´s presente).

This time we are here to do a small manual for that we wait it is useful.            

Virtual machines as Staff?

Yes! this way we will be able to have staff to be able to open basic machines, to be able to give service in the minor possible time.

What do we need?

This time we will work with Ubuntu and an available tool in his repositories python-vm-builder that will help us in the process of creation of the machine and LibVirt to be able to manage them better than by means of scripts.