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By admin, February 10, 2011 9:53 pm

This is one nice looking classic car, remember that Eleanor from the movie “Gone in 60 seconds”?

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By admin, February 5, 2011 10:05 pm

I just came across this GREAT PowerPoint presentation today, I wish I had it 6 months ago, it really helps you to clear the sky and understand many things before making the design and purchase decision.

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By admin, February 4, 2011 4:10 pm

At first, I got very poor performance when I was trying to svMotion a 20GB VM within the same Equallogic SAN between different volumes, it took over 20 minutes to complete, I thought there must be something wrong as I’ve already enabled VAAI.

After searching the net and discovered the problem is due to Different Block Size between the two volumes (1MB vs 2MB) that will actually disabled VAAI feature.

So choosing the volumes with the same block size, I was able to reduce the time by almost 10 times!!!

See attached graph, 15:22 to 15:42 is the one without VAAI, 15:50 to 15:52 is the one with VAAI.

In additional, I have implemented Storage I/O Control today and found Storage vMotion with VAAI isn’t affected by SIOC as the whole svMotion is offloaded on to the EQL array, so SIOC won’t really kick in, you may say svMotion with VAAI is “Out of Control ”, this is another great thing about VAAI!

Finally, I do think SIOC is one of the best feature in ESX 4.1 for many cloud hosting providers as they can finally meet their storage SLA now besides the CPU and memory.

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By admin, February 3, 2011 12:29 pm

It’s nice to have this compliment plug-in for your Equallogic and VMware vCenter.

• EqualLogic Datastore Manager – Allows administrators to provision new Datastores, expand existing Datastores, and monitor storage usage in the VMware Datacenter.
• Auto-Snapshot Manager/VMware® Edition 3.0 – Creates and restores Smartcopies of Hypervisor consistent Virtual Machines (VMs). Utilizes snapshots, clones, and replicas within PS Series group allowing for fast restoration or disaster recovery.
• EqualLogic Virtual Desktop Deployment Tool – VMware View aware desktop provisioning wizard which allows the deployment of manual virtual desktop pools using array based space efficient thin clones and also allows the refresh of these pools.

  
  Note: These tools can be launched from the Home screen of vCenter and also from the new context sensitive tabs and right-click menu options that are added with the plug-in.
  

Btw, I am also getting the Dell Management Plug-in for VMware very soon from my Dell account manager, can’t wait to try it!

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By admin, February 3, 2011 11:49 am

Ferrari 250 GT/ SWB California Spyder is probably one of the most beautiful Ferrari ever made in the 1960s.

 M-091 (Red) Standard Version

M-094 (Black) Limited Edition 2,500 pcs.

Update Jan 27, 2012

CMC has released the sample of Ferrari 250 GT SWB California Spyder

M-091    Ferrari 250 GT SWB California Spyder (red), 1961 EUR337

M-092    Ferrari 250 GT SWB California Spyder (blue), 1961
Lim. Ed. 2500 pcs. (Hard top) EUR345

M-093    Ferrari 250 GT SWB California Spyder (silver), 1961
Lim. Ed. 2500 pcs. (Hard top) EUR345

M-094    Ferrari 250 GT SWB California Spyder (black), 1961
Lim. Ed. 2500 pcs. (Hard top) EUR345

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By admin, February 2, 2011 11:55 pm

Got this information from DellTechCenter:

Beginning in March 2011, Dell will launch the next generation of OptiPlex desktops. OptiPlex delivers business-class control with industry leading security, manageability and services. These systems are designed to integrate seamlessly into any office environment and provide business-class control with industry leading security, manageability and services. They will have a common ID design across our entry, mainstream and performance business segments for consistent look with the 2nd generation of Intel’s Core processors.

The new OptiPlex 990 w/Intel Q67 iCore CPU aims at delivering best-in-class productivity and business-class control. The new mainstream OptiPlex 790 w/Intel Q65 iCore CPU delivers strong Office productivity with flexible remote control. OptiPlex 390—Affordable, latest technology iCore OptiPlex packaged in our newest chassis design.

•Available in DT, MT and SFF form factors
•200W up to 265W Power Supply options
•i3-2100 up to i7-2600 CPU options
•USB3.0 ports

 

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By admin, February 2, 2011 2:13 pm

The following is from Delltechcenter’s forum, posted by Joe from Dell EQL regarding the confusions about Equallogic’s load balancing between pools with multiple array members.

The following best practices should be considered for storage pools:

1. Do not mix arrays with different drive speeds RPM within a single pool unless they are running a unique RAID policy

2. Do not mix arrays with different drive technologies (SATA, SAS, SSD) within a single pool unless they are running a unique RAID policy.

3. Do not mix arrays with different controller speeds (1GbE, 10GbE) within a single pool unless they are each running unique RAID policies.

4. To override the automated performance decisions for a specific volume, indicate a ―preferred RAID type for that volume. If that RAID type exists within the pool, the volume will reside on those arrays that match the preferred RAID policy for the volume.

For example: if you have two members with different drive technologies (Item #2), so you can create each member with a different RAID preference (as you indicated Array1 w/Raid50, Array2 w/RAID5), and then specify the preferred RAID policy for the volume(s), without any issues.

With volume RAID preferences set to Auto, the volume will span both members in the pool. If using the RAID preference, it isn’t a guarantee that it will adhere to the request and only place the volume on a given member; for instance if the volume is too large to fit on the member with the desired RAID level (you might end up with an 80/20 balance).

Note that when mixing SAS/SATA in the same pool the performance load balancer doesn’t take drive RPM into account in its calculations. A common issue is that if you combine fast SAS with slower SATA (often worst with the SATA setup as RAID 5) the SAS array won’t provide its potential performance, and the load balance may place more data on the larger SATA member (typically SATA Arrays have more space).

In other words, old RAID theory still applies here: DO NOT MIX different RPM disks in a raid group.

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By admin, January 31, 2011 1:35 pm

搞了一個晚上，終于學會了如何使用Canon 7D + 電腦。

Canon EOS Ultility的Remote Shooting實在太好用了，攝影功力馬上得到了几何級的爆升，感覺還真Pro！

拍攝環境還是那麼簡簡單單﹐什麼燈都沒有打﹐就靠幾盞室內的白光燈。

這次能照出比較銳利的照片﹐覺得主要還是因為機器配套強勁彌補了環境的不足。之前還誤以為一定要Micro L鏡頭才能拍得出好車模﹐看來我這顆EF-S 17-55mm已經足夠﹐它還真萬能﹐什麼都行﹐無論從廣角風景到微距﹐真值得投資。

 Canon 7D+EF-S 17-55mm f/2.8 IS USM﹐光圈收小到F22﹐ISO100﹐EV -1左右。

 當然這次有用PS來加強肌肉效果！