We finally managed to get Intel X25-E SSD drive into our lab. I attached it to our Dell … story making it running is worth separate mentioning – along with Intel X25-E I got HighPoint 2300 controller and CentOS 5.2… on SSD outperforms RAID 10, but recently I faced issue which can make previous results inconsistent. In short words using Intel SSD X25-E…
Post: RAID vs SSD vs FusionIO
May 1, 2009 By 17 Comments
… managed to setup all three devices (RAID was on board; Intel X25-E SSD connected to HighPoint controller, FusionIO card) on our working… results are here and average results: RAID10 – 7439.850 TPM SSD – 10681.050 TPM FusionIO – 17372.250 TPM However what should… (see my post http://www.mysqlperformanceblog.com/2009/03/02/ssd-xfs-lvm-fsync-write-cache-barrier-and-lost-transactions/). While…
Post: FlashCache: first experiments
May 10, 2010 By 18 Comments
…) * SSD-1: Intel X25-E 32GB ( 1 gen firmware) ( Model Number: SSDSA2SH032G1GN INTEL, Firmware Revision: 045C8621) * SSD-2: Intel X25-M 160GB ( 2 gen ) ( Model Number: INTEL SSDSA2M160G2GC, Firmware Revision: 2CV102HA ) * FlashCache: build over SSD-1 or SSD-2…
Post: FlashCache: tpcc workload
May 25, 2010 By 18 Comments
… series on FlashCache testing when the cache is placed on Intel SSD card. This time I am using tpcc-like workload with…: In summary: on RAID final result: 2556.592 TpmC on Intel SSD X25-M: 7084.483 TpmC on FlashCache with 20% dirty pages… decent, as you can get it for 500$ ( price of Intel X25-M card) ( for this particular workload, your experience may vary…
Post: Should I buy a Fast SSD or more memory?
April 8, 2010 By 10 Comments
… option. Tests run with: RAID10 with BBU over 8 disks Intel SSD X25-E 32GB FusionIO 320GB MLC For each test, run with… improves performance by about five times (or 2x with an Intel SSD). To get the same improvement with memory, you would… There are already appliances on the market which use 8 Intel SSD devices). Is a 2x or 5x improvement enough? There…
Post: SLC vs MLC
July 14, 2010 By Leave a Comment
…) As obvious example here is Intel SSD cards: X25-E ( SLC) is sold as enterprise level card, and X25-M ( MLC ) is sold for… 160GB cards. On this way interesting to see Intel announces enterprise line for SSD card will be based on eMLC ( enterprise MLC…
Post: FlashCache: more benchmarks
May 18, 2010 By 15 Comments
… setup let me address some concern (which I also had). Intel X25-M has a write cache which is not battery backuped… the Intel SATA/flash controller for deciding exactly where to write data..”. So I assume we should be safe running Intel X25-M… about 70GB of data. I allocated 35GB for cache on SSD and I used 16GB and 10GB buffer pool sizes. I…
Comment: SSD, XFS, LVM, fsync, write cache, barrier and lost transactions
August 24, 2010 By 32 Comments
Note that according to my tests, the Intel X25-M G2 loses data even when the write cache is disabled. I have not tested the X25-E, but I suspect this may also be an issue there? See the following for more info: http://evanjones.ca/intel-ssd-durability.html
Comment: FlashCache: more benchmarks
August 24, 2010 By 15 Comments
… repeated my experiments, and now I am more confident: My Intel X25-M G2 loses data, even with the write cache disabled… than 4 kB. I’m hoping to contact someone at Intel who might be able to say if this is expected… will keep updated as I learn more: http://evanjones.ca/intel-ssd-durability.html
Comment: FlashCache: more benchmarks
August 12, 2010 By 15 Comments
… Intel X25-M is *not* durable with the write cache enabled, at least not with my tests. I have a brand new X25…() after each block. 4. Pull the power out of the SSD (critical: when pulling power out of the server, the data…
