Archive for January, 2009

Consolidate Server Network Virtualization and Storage

Posted on January 22nd, 2009 in Data Center, Hardware, Industry News, Server, Virtualization | 1 Comment »

Latest news from Cisco which confirm the release of Code Name California by early of March 2009. The solution will provide integration for Data Center Servers, Network Management, Virtualization and Storage Management from 1 console which the vendor believe to simplify the IT management which we had suffer for Years. HP is currently working on the product which provide the same features as Cisco California did. IBM will also soon to join the competition of this product range. With this technology in place, it may change the environment significantly for the next generation data center and my personal point of view is still the cost, features and reliabilities of the products. It will be good for consolidate with acceptable pricing and reliabilities especially at the current economy. Anything that help to save cost will be the top priority to be considered for IT spending.

Fully Utilize the CPUs of ESX host

Posted on January 21st, 2009 in Data Center, Server, Virtualization | No Comments »

Been a while we all working on virtualization for consolidation purpose, I am sure that 1 of the biggest selling point we always remind the customers and management is we will able to fully utilize the investment we put in for the servers in our data center with virtualization in place. Most of the time, we may still not 100% utilize the servers capacity due to some consideration of High Availability and Performance issues.

Here I am interesting to show 1 of the screen shot I capture during my stress test on the ESX host for our production machine which hit to 100% of the CPU  utilization on the ESX host level.

null

Click the picture above for full view

Read more »

Intel Slash the Processors Price

Posted on January 21st, 2009 in Announcement, Hardware, Industry News, Server, Virtualization | No Comments »

According to the source from Informationweek.com, Intel had confirmed with the price slash for the quad core XEON processors and Desktop Processors too. For more information, please refer to the link below

Information Week – Intel slash processor price
Read more »

SLES9 and SLES10 VM mount as Read only

Posted on January 21st, 2009 in Operating Systems, Tips | 1 Comment »

1 of the SLES 10 and 4 of the SLES9 SP3 are having the same problem which is mount in READ only mode today. Damm! I found the root cause and thanks to Linux kernel bug!

According to VMware KB Article 51306

VMware has identified a problem with RHEL5, RHEL4 U4, RHEL4 U3, SLES10, and SLES9 SP3 guest operating systems. Their file systems may become read-only in the event of busy I/O retry or path failover of the ESX Server’s SAN or iSCSI storage.

This issue may affect other Linux distributions based on early 2.6 kernels as well, such as Ubuntu 7.04

The same behavior is expected even on a native Linux environment, where the time required for the file system to become read-only depends on the number of paths available to a particular target, the multi-path software installed on the operating system, and whether the failing I/O was to an EXT3 Journal. However, the problem is aggravated in an ESX Server environment because ESX Server manages multiple paths to the storage target and provides a single path to the guest operating system, which effectively reduces the number of retries done by the guest operating system.

And the solution is:

This is not an ESX Server bug. This Linux kernel bug has been fixed as of version 2.6.22.

Note: This article does not supersede the Guest Operating System Installation Guide, a guest operating system upgrade may require an ESX Server upgrade as well.

For RHEL5, the resolution is to upgrade to Update 1, also refereed to as RHEL5.1

For RHEL4 U3 and RHEL U4, the resolution is to upgrade to Update 5, also refereed to as RHEL 4.5.

For SLES10, the resolution is to upgrade to SP2. For more information, see Novell KB TID 3605538.

For SLES9 SP3, the resolution is to upgrade to SP4, or SP3 Maintenance Release build 2.6.5-7.286.
For more information, see TID 3584352 – Filesystem goes read-only in VMware

For Ubuntu 7.04, the resolution is to upgrade to 7.10

Read more »

1st Meet Up for Malaysia VMware Users Group

Posted on January 16th, 2009 in Announcement | 24 Comments »

Updated: CONFIRMED
1st Unofficial Malaysia VMware User Group meetup

Venue: Old Town White Coffee (Old Town Kopitiam) – Jalan Teknokrat 5, Prima Avenue Cyberjaya
Date: 20 Jan 2009 (Tuesday)
Time: 6.30pm onward
Maps

Old Town White Coffee Cyberjaya

See you there!

We are planning to organize the 1st unofficial meet up for Malaysia VMware User Group in Klang Valley. There is no Fix time & date yet as we are trying to gather more and more members around the Malaysia to join us for the 1st meet up. The meet up will allow us to know each others and exchange experience and knowledge sharing to strengthen the VMware users group in Malaysia.

Suggest Location :

  • Cyberjaya
  • Puchong
  • Mid Valley
  • Sunway Pyramid

Read more »