 OK, thank you. OK, CISESUN talking about bare metal recovery. The voice is OK. Thank you. I will talk about bare metal recovery by OpenSoft Software. And I am CISESUN. And we have another partner, Jess Wang, come here. We come from National Center for High Performance Computing. It's a super computer center in Taiwan. This is our night today. First, I will introduce the bare metal recovery and the available software, and some comparison with this software. Secondly, I will introduce the Konziya project. At last, I will do a quick demo about restore system by the OpenSoft tool. Of course, I will use the Konziya live. Because we have come from the Konziya project, so it may make us a buyer star. So forgive me, and I will do my best. Bare metal recovery is a process including re-install operation system and applications. If more is also included, data and config restoring. There are two common types available to do that. The first one is the block-based recovery. Just for example, to use the Nihilaz Kamen DD. And the second one is the fire-based recovery. For example, the CP and TAR are single. Of course, it's the fire-based. It depends on your case. Of course, if you choose the right toolkit, it can save a lot of time. This is a software list that we'll compare later. Green ones are the OpenSoft software, and the red one is the proprietary software. Later on, we'll use a few items for these comparisons. Low-Covid means sector-by-sector-Covid for whole disk or for partitions. SmartCovid means to distinguish which part of a partition really contains data and only copies less. LiveCovid means you can save or restore it while it's in use. SmartCovid for disk is meant to use the SmartCovid for the whole disk. The first one is about general information. By this slide, it presents proprietary software that can provide live copying and differential backup, but not for all this OpenSoft software. And then SmartCovid for disk with the firmware ray or FAC ray is not very well supported in this software. Even LVN2 is only supported for just a part of the end. Then we'll talk about fire assistant support in different color systems. It needs some free software toolkit that can do full support in it. But the proprietary software only provides extension 2, 3, even 4. And another operation systems, FET and NTFS, of course, can be well supported by most of them. Besides, Konziya can support HFS plus in Mac and UFS plus in BSD series. And VNFS are also supported in VMware vSphere. So what's Konziya? Actually, Konziya was presented last LCN 2010 in England. So I will very quickly talk about the future of Konziya. Konziya is a partition and disk calling utility. It's very similar with semantic ghost and true image. Of course, it's a bare mental recovery tool for a different kind of operation system. Ninas, Mac, and Windows. For this year, we have two new operation systems behind. One is BSD series because we support UFS plus fire system. And VMware vSphere use the VNFS in it and we implement for support. So the real one is the news for Konziya future. Of course, we use the GPL and some future we will go quickly. The first news is to support three fire systems. BSD, UFS, and VNFS as the slide shows before. And we add a new model to use the Konziya Live as a kind environment in server addition. Actually, in this mode, it will be easy to adapt to different hardwares by this kind of model. You can use it to replace the Konziya Live addition to a Chrome. Konziya has an open and free-sport architecture. In this slide, the left one is a photo chart about 7 disks. Follow the photo chart. You can see when user doing the 7 disks, you can decide the image engine and the compressed engines. Even the machine has a multi-core processor. It can use the payroll compression algorithm, for example, PIGC, something like that. And the other one is the photo chart about the restore. So because it's open, Konziya has opened the project. So it's very easy to add a new image engine and the compressed engines. If the compressed engines can support the pipeline to stand out, it will be easy to add. So this is a sample for a Konziya image. Actually, presented by a folder, it includes a lot of readable text files. For example, it records the hardware information, disk partition information, and swap information. And the sum is a binary file. It includes real data in each partition. Let's take a look for a sample. It presents SDA1 use the extension 4 and use popcorn as the image engines. Then pipe to GZ compressed algorithm. So it will be easy to recognize what kind of image you met. About Konziya use in worldwide, currently, Konziya support several languages to interface. And so it's more than 2.3 million downloads from internet. Konziya was a project of the month in South Forge, last year, January 2010. And we are so happy to see a new article in NINUS Journal this month. And the cover title is Konziya Live, High Performance Open Source Computing, Cronin. And we have some new use cases in enterprise. Nanga Pin is from VMware. As we know, VMware provides a virtual machine product. So what you have to do is to deploy a lot of different operation systems to its production run. So he used the Konziya Live to deploy the different operations. Finally, it built a automatical implement service to build a different kind of operation system. Ugenjo is from Konali, Taiwan. And he used the Konziya Live to do a system backup and recover ISO. Because this event has been presented this year, so I will go quickly. This one is the sense. And we have several education use cases in Taiwan. Actually, in fact, the education use in Taiwan is very important for DRBL and the Konziya development. In this case, Konziya Live be inserted into an individual partition of the local hard drive. And the student can restore the original system when his machine is crashed or messed up. There's some photograph of it, of land. Of course, some teachers use the Konziya server to convert the partition to a USB flash drive. Of course, there are many limitations of Konziya. For example, the first surgery was to be presented in the slides before. And the most common issues is the destination partition have to equal or larger than the source one. The second one is the recover Konziya Live with multiple CD or DVDs is not implemented yet. This means you have to store the separate image of the same image. So I have to say the separate file of the same image into the one storage. And the Konziya can deal with it. Of course, we have some future work. If you have any comments, suggestion, please let us know. I will do a very quick about Konziya Live demos. This scenario is running a Ubuntu 10.10 and I will destroy it by these comments. And I will recover it by using Konziya Live. So this one, it presents, it uses the extension for and the part of FS in SDS3 and SDS1. So I use the DD command to destroy land. First, I will destroy the NBR part. And destroy the first SDS1 partition for boot. Secondly, I will destroy the root file system, SDS3. So if I re-boot this virtual machine, it should be crash, crash. So it's not bootable before on this. So let's do a recover from. First, I will hook up the Konziya Live ISOs. I use the default option. Actually, there are a few functions in the Konziya ISO. For example, you can do the memory test or PIXes. We provide the GPEX. Actually, Konziya Live is based on Debian. So it's just Debian Nenas. And we have another version to use the Ubuntu base. So first one, you ask the query language. I use the English as default. No change, keyboard map. And I start Konziya. And now we do a recover. So I choose the device image because I will recover it from an image I set before. The Konziya image can be stored in local drive and remote drive, even the network file system. So I use the SSHFS. First of all, you have to use DHCP to configure the network and host the IP. And this one, this one machine is hosted machine IPs. And the standard SSHPOL use the available account pass. So you can see SSHFS be mounted in local pass in the home part image. I choose beginner. Of course, if you are familiar with Konziya, you can choose the expert mode. I will do a recover restore disk. And it will be easy to use the Konziya to make a recover CD. You can choose the first one, the first one. But I use the restore disk. So I have a three Konziya image in my repository. I choose the middle one, second one. It detects you have one hard drive in the machines. And it will X twice to confirm. First of all, it will recover the partition tables. Then it will recover the partition one by one. For example, you do the SDA1 recover. Then do the, because it's a small server. Then you recover SDS3. SDS3 as the information shows, use the bottom FS and not too large, because I only just for demo purpose. So only no less than one gigabyte to use. And then you can see the performance. Because it's in virtual machine. So just only 700 megabytes per minute. If in real case, it depends on your network environment and your hardware. In general case, it's the speed almost two gigabytes around roughly. Two gigabytes per minute. Have another console. I can show you a kind of. You can see it use a popcorn dot bit bottom FS to do the image. And they use the PyGZ, PyGZ. It's a parallel GZ to compress. And it's done. And then we have some poster around. For example, it will create a swap partitions and detect the grab2 and reinstall the grab2. And if you install a larger partition, it will be resized the file system if necessary. So let's done. And then we put it to check the system spec. And so it's quite easy to restore an image from the file set before. Let me check. Let's check the file system. So it's done. And we have a pilot booth on open days. If you are interested in our project, please come with us. Thank you. Thank you very much. OK. Next up is a presentation on tuning your PostgreSQL server.