In the series of Oracle storage wait events I have covered so far, five different events are related to the storage: “db File Sequential Read”, “db File Scattered Read” wait events, “Direct Path Read”, “Direct Path Read/Write temp” and “Free Buffer Wait”. In this post, I will describe the log file sync wait event, which in many cases is caused by poor storage performance. Read the rest of this entry »
Posts Tagged ‘SSD appliances’
Posted March 5th, 2012
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Log file sync waitBy Eyal Markovich |
Posted February 26th, 2012
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Why Kaminario’s DataProtect is a Big DealTIME TO TALK MORE ABOUT MAINTAINING DATA RELIABILITY and SSD PEFRORMANCE By Gareth Taube, Vice President Marketing, Kaminario |
Kaminario today announced DataProtect™ which adds enterprise high-availability and data protection capabilities to our K2 line of all-solid-state SAN storage. The details are published on our Website including a highlight video, but I wanted to take a moment to share my thoughts about why the news is significant.
An architecture purpose-built for SSDs From its earliest days, Kaminario has believed that to get the most from solid-state media, you need a storage architecture purpose-built for SSDs. This notion applies to data reliability capabilities such as high availability (HA) and data protection as well as performance. When your applications are screamingly fast, your HA and data protection operations, including snapshots and replication, need to be able to keep up. The ideal SSD architecture should also be fully automated and support non-disruptive operations, so when there is a failure, your data is safe and accessible.
Performance is not enough While many organizations purchase SSDs for performance, more and more are saying that performance is not enough. You’ve got to be fast, but you have to be safe. Speed is absolutely important, but there is no question customers are making data reliability capabilities a growing purchase-decision factor. Concurrently, innovation around data reliability is accelerating faster than innovation around SSD performance, in my opinion. It continues today with DataProtect. Kaminario is raising the data reliability bar within all solid-state storage and now offers customers the most comprehensive HA and data protection software stack available.
Today’s announcement is an indication as to what you will see from us moving forward. The intelligence built into SPEAR allows us to continue to expand HA and data protection benefits to make our storage fast, safe, easy, and cost effective. It may not happen this year or next, but eventually all solid-state media will be the standard for primary storage in enterprise data centers. So that is where our compass is pointed.
Posted December 21st, 2011
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The Year in Review: 2011 – The Launch Pad for SSD StorageSSDs ARE READY FOR TAKE-OFF! By Dani Golan |
2011 has been a year in which SSD storage built up a head of steam for takeoff in 2012. Or, as Zsolt Kerekes said on storagesearch.com, “The user mood is changing from ‘Can I afford to use SSDs?’ to a realization that ‘I can’t afford not to use SSDs’.” It’s seen major new and maturing products and technologies, big-time venture capital funding, and catch-up efforts by major storage vendors shoehorning fast SSD into array architectures designed for much slower disks. Here are some of the SSD highlights of the past year.
Posted December 13th, 2011
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More Discussion about MLC Flash and the EnterpriseEETIMES COLUMNIST SAYS INNOVATION IS MAKING MLC VIABLE By Gareth Taube, Vice President Marketing, Kaminario |
If you are considering migrating to flash SSD storage, you need to understand that there are two types of flash SSD. There are single-layer cell (SLC) NAND flash chips and multiple-layer cell (MLC) NAND flash chips. Essentially, MLC is less expensive and offers more capacity than SLC though SLC is generically faster. A knock on MLC is that the chips wear out quicker than SLC chips because additional work is required by the controller accessing the additional capacity.
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Posted September 12th, 2011
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Kaminario K2: The Next Generation All Solid-state SAN StorageBy Gareth Taube, Vice President Marketing, Kaminario |
We are pleased to introduce our next generation Kaminario K2 family of all solid-state SAN storage systems. We are also excited to jointly announce, with Fusion-io, that the two companies have collaborated on the development of the new K2 and will bring the products to joint customer environments. This is great news for enterprises looking for high performance solid-state SAN storage solutions that will increase their application performance while lowering their costs and storage footprint. Our companies’ combined efforts reinforce the our commitment to remove the barriers enterprises currently face in obtaining high performance and highly available SAN storage at a price point that makes sense. Learn more about the next generation Kaminario K2 all solid-state SAN storage systems.
Posted May 5th, 2011
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New SSD Product TrialTIRED OF WAITING FOR THE RIGHT SSD SOLUTION TO COME ALONG? By Eyal Markovich |
Your wait is over. Kaminario is now accepting businesses to participate in our New SSD Product Trial. This new, blazingly fast SSD storage appliance improves application and database performance by up to 25x, while protecting data at a price/performance point never achieved before. The trial begins in June 2011 and a limited number of companies will be selected to participate.
What you will gain from joining in the Kaminario SSD Product Trial:
- An accurate application and database performance analysis to identify I/O bottlenecks and how to resolve them.
- A reliable and economical multi-terabyte storage solution, on site, for optimizing application and database performance that will extend the life of your storage infrastructure and lower your total cost of ownership.
If interested, please contact tsp_program@kaminario.com for additional information on the New SSD Product Trial.
Posted April 27th, 2011
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Will SSD Improve Your Database Performance?By Eyal Markovich |
In the article, “Will SSD Improve Your Database Performance,” George Crump from Storage Switzerland takes a look at how the fog around solid state storage is lifting. Most storage and database administrators are convinced that solid state technology is the most viable next step in storage performance. The challenge is that solid state performs so well that now there’s a concern as to whether the databases placed on the platform can take full advantage of that boost in performance. Unlike mechanical storage, investments in solid state storage cannot afford to go under utilized, the price premium is just too high. Making sure that the database will take full advantage of solid state storage is the next big step in solid state adoption. Read full article.
Posted March 7th, 2011
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The effect of host/target ports on latenciesBy Eyal Markovich |
I recently tested the performance of an application that was relying heavily on tempdb. Since the tempdb files reside on a dedicated LUN (F:\, in this case), it was easy to examine the performance of this drive through Perfmon. Surprisingly, I noticed an average read latency of 9 ms, which is much higher than the sub-millisecond latency that I usually see from a Kaminario K2 high performance storage appliance. Read the rest of this entry »
Posted February 17th, 2011
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Accelerating Online Transaction Processing Applications White PaperBy Eyal Markovich |
OLTP (online transaction processing) refers to transaction systems that carry out day-to-day business functions such as ERP, CRM, etc. Characterized by a large number of short online transactions, OLTP systems automate daily operational functions and run real-time reports and analysis, processes which are critical to any business. OLTP systems provide very fast query processing and maintain data integrity in multi-access environments. Read the rest of this entry »
Posted February 7th, 2011
Automatic Storage Tiering LimitationsBy Kaminario |
In the last couple of years, all the major storage vendors have introduced some version of automatic storage tiering into their storage arrays. Everyone talks about the benefits of using flash SSD with automatic storage tiering, as it boosts performance and reduces total cost of ownership (TCO). Before examining the pros and cons of automatic storage tiering, let’s examine the different ways memory-based cache and flash SSD are being used by storage vendors to accelerate storage arrays’ performance. Read the rest of this entry »
