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Showing posts from August 21, 2011

How mature is your datacenter?

By David Chernicoff | August 25, 2011, 6:39am PDTIt should come as no surprise that the changes in technology and business needs that impact the datacenter are coming along at a fast and furious pace. With the term 'green" being applied to just about everything related to the datacenter, operators are continually looking for ways to improve their business processes and to evaluate what their future needs will be, not just in terms of performance and price, but also using metrics that were unthought-of of a decade ago, such as sustainability, carbon impact, and energy efficiency.With the greengrid.org's Data Center Maturity Model, a datacenter operator can find the context for all areas of their datacenter operation. Despite it's name, the metric isn't one that determines where you are in the lifecycle of your datacenter, but rather one which determoines how well situated your current datacenter is in terms of meeting the current standard for an efficient operation…

Mengenal Data Center Maturity Model

The Green Grid has developed the Data Center Maturity Model (DCMM) and supporting white paper  to outline capability descriptors by area such that users can benchmark their current performance, determine their levels of maturity, and identify the ongoing steps and innovations necessary to achieve greater energy efficiency and sustainability, both today and into the future.  The maturity model touches upon every aspect of the data center including power, cooling, compute, storage and network. The levels of the model outline current best practices and a 5-year roadmap for the industry.

Downloads:
DCMM - Full Model
DCMM - All Individual Sections in Zip File
DCMM - Compute Section
DCMM - Cooling Section
DCMM - Management Section
DCMM - Network Section
DCMM - Other Facility Section
DCMM - Other IT Section
DCMM - Poster (Standard E)
DCMM - Poster (A0)
DCMM - Power Section
DCMM - Storage Section

Download lengkap disini:
http://www.thegreengrid.org/Global/Content/Tools/DataCenterMaturityMod…

KEUNGGULAN AXIS NETWORK VIDEO SURVEILLANCE

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AXIS Network Video Surveillance System memiliki banyak kelebihan dan memberikan banyak fungsi yang tidak dimiliki oleh Analog Video Surveillance System. Kelebihannya termasuk akses secara remote, kulaitas gambar superior, event management and kemampuan intelligent video, sangat mudah diiintegration dengan system lain. Akses secara remoteHigh Image QualityEvent Management and Intelligent VideoFuture-proof integrationSkalabel dan fleksibelCost-Effectiveness Remote accessibility Network cameras and video encoders can be configured and accessed remotely, enabling multiple, authorized users to view live and recorded video at any time and from virtually any networked location in the world. This is advantageous if users would like a third-party company, such as a security firm, to also gain access to the video. In a traditional analog CCTV system, users would need to be at a specific, on-site monitoring location to view and manage video, and off-site video access would not be po…

Mengenal jenis-jenis RAID

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Dalam beberapa kali pekerjaan, client meminta untuk dipasangkan RAID. RAID adalah singkatan dari 
Redundant Array of Inexpensive (Independent) Disks. Ada beberapa tipe RAID yang sering digunakan, diantaranya: RAID:

RAID 0RAID 1RAID 5RAID 10 (also known as RAID 1+0) This article explains the main difference between these raid levels along with an easy to understand diagram.

In all the diagrams mentioned below:
A, B, C, D, E and F – represents blocksp1, p2, and p3 – represents parity RAID LEVEL 0
Following are the key points to remember for RAID level 0.
Minimum 2 disks.Excellent performance ( as blocks are striped ).No redundancy ( no mirror, no parity ).Don’t use this for any critical system. RAID LEVEL 1Following are the key points to remember for RAID level 1.
Minimum 2 disks.Good performance ( no striping. no parity ).Excellent redundancy ( as blocks are mirrored ). RAID LEVEL 5
Following are the key points to remember for RAID level 5.
Minimum 3 disks.Good performance ( as blocks are …