Questions tagged [solid-state-drive]

SSD SUPPORT IS OFF-TOPIC. General HDD/SSD support may be asked on Super User (https://superuser.com). A solid-state drive (SSD) is a flash disk similar to a thumb drive, but much faster and with a hard-disk interface, typically SATA.

A solid-state drive is a storage medium based on high-performance flash memory. Most SSD have the same logical interfaces as hard disks (e.g. SATA ). SSDs can be distinguished from HDDs by not having any moving mechanical components.

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My 11.3MB database file takes 3 minutes to load with Pickle

I have a very large database/dictionary of movie ratings by random users which totals to around 400,000 items in total. I use pickle to store it in a .p file in the same directory. When pressing the run button in my Enthought Canopy IDE, it takes…
Shane Smiskol
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How to avoid Toshiba SSD S.M.A.R.T. value decrease just by calling Win32_DiskDrive?

Recently I found S.M.A.R.T. wear leveler value of Toshiba SSD decrease just by calling Win32_DiskDrive of WMI (Windows Management Instrumentation). All I want to do is just to monitor and log the connect/removal of disk drives (e.g. USB flash, SD…
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Berkeley DB store is so slow

I am using Berkeley DB to store the data persistently in my program. I tested it on my SSD, my SSD speed is 1.4Gb/s for writing. My progrma for testing the storing speed of DB is shown below (error checking is omitted). const char*…
HuangJie
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Batch jobs and reduced SSD lifetime?

I am working on a batch job which imports data from a legacy database, transforms the data in 3NF and inserts the resulting data into another database (target database). The batch job is written with Spring Batch. While I was developing the steps of…
Tom
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What happens to Local SSD if the entire zone were to lose power?

What happens to data on local SSD if the entire google data center were to suffer a cataclysmic loss of power? When the compute engine instance comes back online eventually, will it still have the data on the Local SSD? It seems like it handles…
Eloff
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What is a persistent disk?

I have been doing an online course in MongoDB, however I am frequently coming across a term called "Persistent disk". I have googled it out, but did not get a satisfying answer. Could you please help me out ?
Sourav
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How to check TRIM status via Terminal

I'm have a Mid 2010 iMac with OWC Mercury Electra 3G SSD. After the GM seed of El Capitan beta, I started seeing this: Through the final release to now, 10.11.1 beta's, issue still exists. This is fine with me because the SSD drive is functioning…
Gizmodo
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Azure D Series VM configuration for WebRole hosted on Cloud Service

I'd like to move my WebRole on azure to use one of the new D-Series VM's to take advantage of the faster CPU's and SSD's. Is there any IIS configurations that would optimize running on an SSD or can I assume that just moving to an SSD will increase…
TWilly
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How to optimize C# concurrent file write performance

I'm trying to optimize the performance of creating a lot of small files to a SSD disk. ConcurrentBag cb = new ConcurrentBag(); cb.AsParallel().ForAll(fa => File.WriteAllText(fa[0], fa[1])); Total count of the…
BigChief
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Why is Amazon Web Services charging me for their SSD usage?

I got a bill form Amazon charging me $1.20. for $0.12 per GB-month of General Purpose (SSD) provisioned storage - US West (Northern California)? They said I used 10.000 GB last month but I haven't done a single thing with AWS. How is this happening…
user2361174
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File read time in c increase unexpectedly

I'm currently facing an annoying problem, I have to read a big data file (500 GO) which is stored on a SSD revodrive 350. I read the file using fread function as big memory chunks (roughly 17 mo per chunk). At the beginning of my program everything…
Robin
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Swap configuration on local-SSDs

I'm facing a problem using Aerospike on Highmem8 / 30Go machines with local-SSDs. We have configured 2 Go swap on the SSD. Configuring Aerospike using the entire SSD disk, its formatted and shows "used 100%" which is normal. But the swap is still…
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Visual Studio 2013 Intellisense Not Updating When Header File Changed in Other Project

I'm having a frustrating problem with C++ Intellisense in Visual Studio 2013. (If you're dealing with other versions of VS, please don't answer. Intellisense has changed dramatically over the versions, and my experience is that answers for one VS…
goug
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In python, can I see if a file lives on an HD or an SSD?

I want to randomly access the elements of a large array (>7GB) that I load into Python as a either an HDF5 dataset (h5py.Dataset), or a memory-mapped array (numpy.memmap). If this file lives on an spinning-platter HD, these random accesses take…
SuperElectric
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When to define SDD(System Sequence Diagram) operations System->Actor?

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…
devoured elysium
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