… research and testing conducted for this post were sponsored by Virident. First, some background information. All tests were conducted on Percona… the vCache and FlashCache tests used the same 2.2TB Virident FlashMAX II as the cache storage device. EXT4 is the filesystem… on some earlier work that I’d done with this Virident card (configuration C): innodb_io_capacity = 30000 innodb_adaptive_flushing…
Post: Virident vCache vs. FlashCache: Part 1
May 16, 2013 By 3 Comments
… to provide functionality similar to that of FlashCache. In particular, Virident engaged Percona to do a usability and feature-set comparison… commands to enable vCache on the PCIe flash card (a Virident FlashMAX II) and set up the cache device with the command… RPMs. Moreover, the vCache software is built in to the Virident driver, so there is no additional module to install. FlashCache…
Comment: Testing the Micron P320h
April 17, 2013 By 7 Comments
… is faster than Virident. You can compare numbers here: http://www.mysqlperformanceblog.com/2013/03/21/testing-the-virident-flashmax-ii/ @Dimitri– The…
Post: Review of Virident FlashMAX MLC cards
November 10, 2011 By 14 Comments
… the Virident FlashMAX card for every thread count. On 32-64 threads we have about a 35-40% advantage of using Virident FlashMAX. DISCLOSURE: This review was done as part of our consulting practice for which we compensated by Virident. However, this…
Post: Virident FlashMAX MLC in tpcc-mysql workload
November 29, 2011 By 8 Comments
… in previous post on Virident FlashMAX MLC, beside sysbench benchmark, I also run tpcc-mysql (to compare performance Virident FlashMAX vs Fusion-io ioDrive…/files/white-papers/virident-mlc-tpcc.pdf The graphical result for tpcc-mysql 5000W: My conclusions from this benchmark: Virident FlashMAX provides stability…
Post: Testing the Virident FlashMAX II
March 21, 2013 By 1 Comment
… test results from the Virident FlashMax 1400M, an MLC PCIe SSD device. Since that time, Virident has released the FlashMAX II, which promises both… the FlashMax 1400M. Asynchronous random read is up next: The behavior of the FlashMax II is very similar to that of the FlashMax… throughput, 25% faster. In every area tested, the FlashMax II outperforms the original FlashMax 1400M by a significant margin, and can be…
Post: Testing Virident FlashMAX 1400
May 4, 2012 By 4 Comments
… of different SSD cards. This time I show numbers for Virident FlashMAX 1400. This is a MLC PCIe SSD device. There are… driver with turbo=1. I also use “maxperformance” formatting for Virident, which gives less capacity (1.2TB visible for user), but… close. Response time: In the conclusion, from all tested cards, Virident FlashMAX shows the most stable results and the best absolute performance…
Post: MLC SSD card lifetime and write amplification
November 15, 2011 By 8 Comments
… on this question. For base I will take Virident FlashMAX M1400 (1.4TB) card. Virident guarantees 15PB (PB as in petabytes) of writes… the card statistic to get an exact written bytes. For Virident FlashMAX it is vgc-monitor -d /dev/vgca | grep writes 379835046150144…,441,728 bytes written, which is 984.44GB and the Virident stat shows 1,125,653,692,416 bytes written, which…
Comment: Review of Virident FlashMAX MLC cards
November 11, 2011 By 14 Comments
Peter, Virident FlashMAX also has ECC, http://www.virident.com/default/assets/File/Virident-Flash-Card-Data-Sheets-110911-3C.pdf I, kind of, assume this is de-facto requirement for server grade storage. Virident has RAID 7+1 for additional protection beside ECC, if…
Comment: MLC SSD card lifetime and write amplification
November 15, 2011 By 8 Comments
… my second comment I will describe how Virident defines ‘End of Life’ for Virident‘s FlashMAX cards. As you can see from the… Card Info : intel-mlc-2tb, 2048 GiB, Double decker Rev : FlashMAX 33248, module 32968 Temperature : Safe Partition Raw_Capacity Usable_Capacity…
