Resuming posting

Haven’t posted for a while here and have been using http://bobleith.wordpress.com. I’ve decided to focus on my research work including simulation and financial markets on the bobleith.wordpress.com blog, but will get back to posting here on content related to .NET development and development architecture including TFS, Visual Studio.NET, and SQL development. I will be maintaining…

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Now at 5.11 GB/s SQL backup to Null/3.12 GB/s local backup with I/O Accelerators

This will be my last update for a while, but I did some more shuffling of the database files among the various PCIE SSD logical drives (HP I/O Accelerators which are HP-OEM Fusion-Io cards). See earlier post for info about the drives. In the latest test, I got up to 5.11 GB/s (5228.521 MB/sec) doing…

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More clarifications on 3.05 GB/s SQL backup potential for much higher throughput

A couple of clarifications – including potential for much greater backup throughput beyond 3 GB/s up to 9 GB/s for this hardware: 1) Contrary to the video, 10 GbE is not the fastest practical Ethernet for server-to-server communications. 40 GbE network cards and switches are available and affordable. It is feasible to achieve 5GB/s using…

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A couple of corrections on video

I should have said that 40 Gbe and 100 Gbe are not widely implemented rather than not available  – they are available. But, even 100 GbE is only adequate for 12 GBPS – and with Gen 3 PCIE SSD reading at 3.0 GBps +, that will easily be overrun by newer servers that can utilize…

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1/4 TB SQL Database backup in under 1 Minute!!! (3.05 GBPS transfer rate)

With the addition of another SATA SSD as well as another SLC Duo to serve as the target destination, the same SQL database which now has a total of 233 GB of used space was backed up in less than 1 minute using the same server referenced in my prior 2.0 GBPS backup post (http://blogs.msdn.com/b/microsoftbob/archive/2012/10/18/2gbps-backup-on-12-core-server-with-7-fusion-io-cards.aspx)….

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Quick update on IO Accelerator (testing)

Follow-up from last post on 2.0 GBPS backup throughput – was able to update the firmware painlessly for the non-functional card from a Win 7 X64 machine so that it can now be updated on the HP Server to the latest HP-branded IO Accelerator driver. To my pleasant surprise, the last generic driver version (2.3.10)…

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Over 2 GBps SQL Server 2012 backup on 12-core server with 7 Fusion-IO Cards!

I managed to squeeze 2 GBps (2192.207 MBps to be exact) out on 12 cores using a HP Server DL370 with 12 x 2.66 (12 MB Cache) cores, 108GB RAM, and 7 Fusion-IO Cards backing up from a database stored on 5 cards to backup files spread across 2 other cards, 1 Intel SSD, and…

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Software Quality – 4 Key facets (From Linked-in)

I have become active in the Linked-in Community, especially regarding predictive analytics, as there are many very good discussion groups. So, to save effort and still get a couple of hours of sleep, a lot of my posting here will come from there. The below is not a predictive analytics post, but an answer to question…

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Memory via PCIE-SSD as the authoritative data source

i’ve blogged a few times about Fusion-IO devices and my experiences with SSD. I’ve been thinking about the implications of large in-memory databases that retain persistence and transactional capabilities. Turns out the game may be changing long-term to an in-memory database model forscalability. I.e. Fusion-IO demonstrated technology that extends memory to Fusion-IO devices and supports up to…

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Boolean KMAP reduction code released after 23 years!

Yes, I know its been a while since I have posted anything and way past due to post my update on my fusion-io card testing (I now have 6 memory devices in my R710 – 2 cards are duo). I will hopefully get to that in the next couple of weeks as I am using all…

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