Tag Archives: cloud

Design of OpenStack Cloud Data Center in My Mind

The subject has 3 meanings In OpenStack framework It’s a Cloud, which is dynamic, not static. Self service. You get what you need almost immediately. It’s production in data center with high volume traffic of CPU, disk and network Technically, … Continue reading

Posted in cloud, innovation, kvm, linux, network, opensource, virtualization | Tagged , , , , , | Comments Off on Design of OpenStack Cloud Data Center in My Mind

/etc/udev/rules.d/70-persistent-net.rules makes network unavailable

After launching a VM, sometimes network becomes unavailable until you manually remove [root@j3ffyang~]# rm -fr /etc/udev/rules.d/70-persistent-net.rules The workaround is to stop generating this rule mv /lib/udev/rules.d/75-persistent-net-generator.rules /tmp To process this in batch for i in `cat /tmp/allnode.lst | awk ‘{print … Continue reading

Posted in linux, opensource, script, shell, virtualization | Tagged , , , | Comments Off on /etc/udev/rules.d/70-persistent-net.rules makes network unavailable

Enable L2TP/IPSec VPN on Ubuntu

I use China Unicom 3G on my Android phone in China. To get rid of #GFW in China, with Richard guidance, I set up L2TP/IPSec VPN on Ubuntu, hosted @ http://Linode.com. Simply document the steps. IPSec sudo apt-get install openswan … Continue reading

Posted in android, cloud, linux | Tagged , , , , , , , , , , | Comments Off on Enable L2TP/IPSec VPN on Ubuntu

Apply VirtIO for KVM over KVM (Day 2)

I talked w/ David Ke Zhu @ dev team and confirmed that VirtIO is a mandatory plugin driver to apply in order to improve the IO performance of disk + network. HSLT depends on this driver. (Thanks to David). Good … Continue reading

Posted in cloud, hypervisor, kvm, linux, opensource, virtualization | Tagged , , , , , , , | Comments Off on Apply VirtIO for KVM over KVM (Day 2)

Apply VirtIO for KVM over KVM (Day 1)

We received a complaint regarding KVM performance issue today. Customer reports the performance is poor when copying files from native bare- metal Windows box to Windows 2003 VM created over KVM on CentOS 5.5 host box. Searching @ RHEL KVM … Continue reading

Posted in cloud, linux, opensource, virtualization | Tagged , , , | Comments Off on Apply VirtIO for KVM over KVM (Day 1)

IBM Service Delivery Manager (ISDM) Download from eXtremeLeverage

ALL file downloaded from eXtremeLeverage are good. The files naming reference + md5 checksum for verification: ISDM_for_System_x_6of12_V721.tar CZK1BML > icbtivsam_part01.tar 278b95932fdb8405acbb1d6c11ea019a ISDM_for_System_x_7of12_V721.tar CZK1CML > icbtivsam_part02.tar f665c8b7dd5a6ea8b2b78fc5b07b341f ISDM_for_System_x_8of12_V721.tar CZK1DML > icbtivsam_part03.tar f68225a101fdf9a529870c5f4120b075 ISDM_for_System_x_9of12_V721.tar CZK1EML > icbtivsam_part04.tar d2a0222f7422ca9b1b3ac2005132e565 ISDM_for_System_x_10of12_V721.tar CZK1FML > icbtivsam_part05.tar … Continue reading

Posted in cloud | Tagged , , | Comments Off on IBM Service Delivery Manager (ISDM) Download from eXtremeLeverage

Twitter buys analytics company

Twitter, which recently announced its Promoted Tweets advertising program, has acquired the maker of a cloud-hosted Web analytics application, Twitter said Thursday.Smallthought Systems’ Trendly lets Web site owners dig deeper into the usage and traffic data that Google Analytics collects … Continue reading

Posted in cloud, innovation, social network, twitter, web2.0 | Tagged , , , , , | Comments Off on Twitter buys analytics company