JKuan Blog!

Microsoft has released a free tool - SQLIO (Download at  http://www.microsoft.com/en-us/download/details.aspx?id=20163 ) Intel initially has developed IOMeter which is now open source can be download at http://www.iometer.org/doc/downloads.html Both tools are pretty easy to use. Of course, SQLIO provide more advance testing scenario by choosing the right parameter, such as number to threads, file size, read/write, random/sequential, block size, buffer cache, etc... I've seen 2 good sites that explain pretty well with SQLIO command... pls see... http://www.mssqltips.com/sqlservertip/2127/benchmarking-sql-server-io-with-sqlio/ http://www.sqlteam.com/article/benchmarking-disk-io-performance-size-matters However, I still no no idea what's the actual number we should be look at... I created the batch file as shown below. @echo off cls :start echo Testing IO... SQLIO.exe -kW -s60 -frandom -o8 -b8 -LS -Fparam.txt timeout /T 60 SQLIO.exe -kW -s60 -frandom -o8 -b256 -

First, upgrade iOS 5.1.1 via iTunes Then, download absinthe from http://absinthejailbreak.com/download-absinthe-2-0-jailbreak-5-1-1-untethered/ Following the instruction attached or video... http://absinthejailbreak.com/untethered-jailbreak-5-1-1-absinthe-2-0-video/ I've used 2.0.4 version. Will try my iPad2 and iPhone 4 later tonight... :D

It is clearly stated in VMware SRM compatibility matrix web -  http://www.vmware.com/support/srm/srm-compat-matrix-5-0.html, that Essential/Essential Plus is not supported. However, in some VMware official website, http://www.vmware.com/products/site-recovery-manager/buy.html, SRM 5.x supports any two instances of vCenter Standard or Foundation. This is where the confusion. Essential Plus does include 6 ESXi standard license and 1 vCenter for Essential. Yes, vCenter for Essential... this is a totally different version compare with vCenter Foundation (http://www.vmware.com/products/datacenter-virtualization/vsphere/small-business/compare-kits.html). As of today, SRM 5.x can only works with vCenter Standard or Foundation, with ESXi Standard, Ent, and Ent+. Will they support Essential Plus moving on? Let's wait and see...

See the Security blog for more info but over the past few days 2 very important security postings have been made, the vSphere 5.0 Hardening Guide has been released and the achievement of Common Criteria EAL4+ for vSphere 5.0. http://blogs.vmware.com/security /