EMC is marketing Solid State Flash Drives and my project is thinking about moving that direction in the future. Does anyone have any experience with replacing traditional disk storage with flash drives? Besides price, have you experienced any downsides to the technology? ...
Hey guys! I hope that many of you are working with high traffic database-driven websites, and chances are that your main scalability issues are in the database. I noticed a couple of things lately: Most large databases require a team of DBAs in order to scale. They constantly struggle with limitations of hard drives and end up with ve...
When configuring a database server with mechanical drives, mirroring hard drives or using RAID5 for redundancy in case of drive failure is the norm. Is this redundancy also required when using solid state disks or is the "mechanical" reliability of SSDs (write fatigue not withstanding) such that drive redundancy is unnecessary? This is o...
I'm trying to put together a business case for getting every developer in our company an Intel SSD drive. The main codebase contains roughly 400,000 lines of code. My theory is that since the code is scattered about in maybe 1500 files, an SSD drive would be substantially faster for compiles. The logic being that many small reads really...
I had not such a good experience and I documented it here: http://peterkellner.net/2009/02/08/ssd-notebook-lenovo-patriot-warp-veryslow/ I'd love to get the SSD working in my vista Lenovo W500 notebook. ...
Functionally, what's the difference between a USB flash drive and an SSD (aside from their interfaces, because duh)? Lots of nice gooey hardware discussion is totally welcome. ...
I have been interested in SSD drives for quite sometime. I do a lot of work with databases, and I've been quite interested to find benchmarks such as TPC-H performed with and without SSD drives. On the outside it sounds like there would be one, but unfortunately I have not been able to find one. The closest I've found to an answer was t...
I'm getting ready to release a tool that is only effective with regular hard drives, not SSD (solid state drive). In fact, it shouldn't be used with SSD's because it will result in a lot of read/writes with no real effectiveness. Anyone knows of a way of detecting if a given drive is solid-state? ...
Given that Solid State Disks (SSDs) are decreasing in price and soon will become more prevalent as system drives, and given that their access rates are significantly higher than rotating magnetic media, what standard algorithms will gain in performance from the use of SSDs for local storage? For example, the high random read speed of SS...
This may be slightly off-topic for a strictly programming site, but I'm interested in starting a software project or contributing to an existing project that can do what I'm proposing. Now that SSD storage is becoming more popular, I am more interested in using one in my destop computer. Since they are very expensive per Gigabyte compa...
as far as I understand postgres, mysql or oracle will be wear out ssd disk very fast. I need one INSERT query per few second and statistic processing of inserted lines per 24 hour. platform: linux ...
How can I, programmaticaly, read the hardware information of my drives? ...
Is there a reliable, quick, deterministic way (definitely not benchmark) to check whether system drive in Mac OS X is on Solid State Drive? Is there any other indicator how well disk handles parallel access? I'm trying to adjust number of threads that my program is going to use for disk-bound operations. I'm not interested in raw spee...
What is the difference between sequential write and random write in case of :- 1)Disk based systems 2)SSD [Flash Device ] based systems When the application writes something and the information/data needs to be modified on the disk then how do we know whether it is a sequential write or a random write.As till this point a write cannot b...
I have a program that accumulates traffic from network interface in 800 Mb/s. This program is developed by Delphi, also in 32bit platform(Delphi does not support 64bit architecture). I'm writing received date on the memory(RAM) and after a while (unknown and depends on received data), write a block of received data (unknown size and dep...
Is there a way to do a "Single Source Document" in Word via VBA or other techniques. My company creates training and wants to have a "master document" that hosts everything in the training and then from that, create the delivery modalities and materials. For example, a single master course would be able to be queries to output A traine...
I'm using Amazon cloud right now, and the biggest performance issue is horrible I/O performance. As long as something fits RAM it's fine - once it's too big it gets ridiculously slow (in many different scenarios). There are only so many ways one can avoid hitting disk - so the question is - does Amazon or some other cloud provide SSD opt...
I am having some trouble understanding how to make System Sequence Diagrams, as I don't fully grasp why in some cases one should define operations for System -> Actor and in others don't. Here is an example: Let's assume the System is a Cinema Ticket Store and the Actor is a client that wants to buy a ticket. 1) The User tells the Syst...
need this in my research... hope someone could tell me... ...
Hi, Anyone know where I'd find an ATA reference that details the protocol for triggering a TRIM? I'm looking to discover what sort of structure/object/data I'd need to send in a raw IOCTL to get an ATA device to trigger a TRIM (assuming appropriate hardware/firmware support, obviously). Thanks. ...