Solid-state drive; a device that uses solid-state memory to persistently store data, often as a replacement for a traditional hard drive. Because SSDs do not use mechanical seeking to access data, they can provide much higher performance than hard drives especially with random I/O operations.

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Best media for long-term backup without access : USB key vs DVD vs SD card vs HDD vs SSD vs …? [closed]

Consider that one want to keep a backup of some data by placing a media in a secret place (under earth, in a rock, in a wall...). What would be the best media with the best long term data stability (...
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4answers
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What's the difference between mini PCIe and mSATA interfaces and SSDs?

Are they even different at all? I've seen SSDs being sold on the market being tagged with both mSATA and mini PCIe such as this one. I've seen marketing ads that say mini PCIe are better than mSATA ...
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2answers
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Explain TRIM, and are all SSD's going to support this with firmware updates?

I just bought a Kingston 64GB SSD to install an OS on, but after purchasing it I noticed a review that said it doesn't support TRIM and that this isn't good to install an OS. So, I did a bit of ...
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3answers
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Will a 7mm SSD fit in a 9.5mm laptop HDD slot?

I'm planning to purchase a Crucial M4 256G SSD. There are 2 versions though, 7mm and 9.5mm, at the same price on Newegg.com My current laptop is 9.5mm SATAII. However, I plan to purchase a new ...
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2answers
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Does Windows XP support the SSD trim command?

I am thinking about purchasing an SSD to speed up my Windows XP system. I heard that the TRIM command is important to maintaining the SSD performance over the long run. So is getting an SSD for ...
7
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2answers
9k views

Is alignment to erase block size needed for modern SSD's?

I now this topic has been somewhat discussed before but I haven't managed to get a clear picture. I’m trying to figure out whether partition alignment to erase block size is necessary with recent-ish ...
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1answer
9k views

SSD AES-256 hardware encryption - how to configure?

Recently, I bought Plextor M5 Pro with hardware full-disk AES-256 encryption. Installed it in my laptop, where I have no HDD BIOS password set. From what I read around it seems that the encryption is ...
5
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5answers
16k views

Intel Smart Response vs SSD as primary drive

Building a new system with a 120GB SSD and a 1TB 7200 RPM HDD (windows 7 OS). Originally I was going to use the SSD as the boot drive and the HDD for additional storage, but then I started reading ...
28
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2answers
2k views

Why are there different lengths of contacts on SATA connectors?

I have looked around, but cannot seem to find out why. On SATA drives (2.5 and 3"), there are variable lengths to the copper contacts on both the data and power ports on the drives. These variations ...
27
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5answers
8k views

Very high-pitched noise when computer does something intense?

"Intense" is the best word I can use to describe it because I'm not sure what it is, whether it's RAM, GPU or CPU. If I pan the camera in unity: A high pitched noise issues from the computer. The ...
14
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2answers
35k views

Good OS X Hard Drive Benchmark

What software can provide some insight on the performance of the hard drive in my MacBook Pro? I would be interested in both sequential and random read and write performance. This is in the context ...
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11answers
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Will an SSD help prevent laptop overheating?

My laptop has a severe overheating problem, even though it's quite new (< 6 month). It's still regularly overheating to the point where it shuts down. This usually happens while playing games but ...
13
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4answers
7k views

Will reading data cause SSD's to wear out?

It's almost common knowledge that excessive writes (including formatting, defragmenting etc) will, in time, wear out solid state drives. But does reading lots of data from SSD's cause wear too? I'm ...
10
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4answers
1k views

Will mounting a file system read-only increase the lifespan of an SSD?

Let's assume I have some data that once created, never again has to change. I have copied this data to an SSD and then re-mounted the file system as read-only and leave it that way from now on. Will ...
9
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3answers
9k views

SSD cache in SSHD compromises the lifecycle compared to standard HDD?

The limited writings and capacity\price of the SSD are known drawbacks as the sensitivity to shocks of the HDD. The hybrid SSHD (standard HDD+SSD cache) have a classic HD combined with a small SSD ...
9
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4answers
10k views

How to place SuperFetch cache on an SSD?

I'm thinking of adding a solid state drive (SSD) to my existing Windows 7 installation. I know I can (and should) move my paging file to the SSD: Should the pagefile be placed on SSDs? Yes....
8
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2answers
8k views

Solid State Drive Occasionally Freezes For A Minute While OS Is “Beach Balling”

Almost a month ago I bought Intel 330 128GB solid state drive, migrated my data with Intel branded limited-feature Acronis from old HDD to new SSD, optimized with Intel Toolbox and started using it. ...
8
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1answer
1k views

What properties/features should I look for in a good SSD drive?

I've encountered some performance problems with a previous SSD so I would like to know what to look for to have a happier experience with my next drive
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2answers
20k views

Windows 8 EFI boot issue

I've got a simular problem as described in How can I repair the Windows 8 EFI Bootloader?, but with some different details. When I tried to change the bootsequence of my harddisks (of which 1 SSD) in ...
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4answers
6k views

Upgrade Macbook Pro 2008 to SSD

I'm about to purchase a nice 120gb SSD for my Macbook Pro laptop. While installing the new drive is simple enough (physically), I've never installed Mac OSX on a bare drive. Are there any caveats or ...
20
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2answers
8k views

combining SSD and hard disk in software RAID1?

Does it make sense to build a Linux software RAID-1 (mirroring) using an SSD and a normal hard disk? I want to combine the advantages of SSD (fast transfer rates, fast access times) with the ...
12
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3answers
3k views

Does Linux support TRIM for SSDs on LVM?

I am getting a SSD and need to know, does Linux support TRIM if I set up LVM on top of the SSD? I'm finding conflicting information. I'm currently running Ubuntu 10.10 with kernel 2.6.35-28.
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4answers
1k views

Is it worth buying SSDs for a RAID?

Im seeing people using SSDs for RAID-0 and getting excellent improvements in read/write rates. But now there is a good opportunity to acquire another SSD Force Corsair F60 identical to mine. I'm ...
10
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2answers
2k views

What is TRIM exactly?

From the Wikipedia page of TRIM I get the impression that TRIM was introduced to lower the writes to a SSD, but letter the file system taking case of which blocks are unused. If that is correct, does ...
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3answers
37k views

How can I recover dead SSD drives?

I haven't lost any mission critical data or anything, but I have in my possession a large number of SSD 2.5" drives that were pulled for unreliability or being "dead". I am curious if there's any way ...
6
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2answers
1k views

How much free space should I leave on an SSD drive?

Is 8% "ok", or will I feel a performance degradation? I'm not sure what the specific model is right now, but can find out if needed.
5
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1answer
362 views

Can I run with a computer in my backpack?

This maybe a tad off-topic, but as it says on meta, hardware questions should be fine on Super User. I want to run home from work (~20 min of jogging) but I need to bring with me my laptop, a Macbook ...
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1answer
5k views

In Windows 7, can I create a Symlink or Junction for winsxs or installer folders

I have an SSD as my C:\ drive, and it's only 128 Gig. I'm noticing that the C:\Windows subfolders "winsxs" and "Installer"--both of which I've read numerous places that one should never delete ...
4
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4answers
40k views

Cloning HDD to SSD but Windows fails to boot

So I've got a laptop with a 300GB HDD which I want to replace for a 120GB SSD. The 300GB HDD will then act as a secondary hard disk. I've tried cloning my hard disk with EaseUS ToDo Backup and EZ GIG ...
4
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2answers
1k views

My Intel 320 SSD - is encryption automatic?

So, I have just received an Intel 320 series SSD. They state that once I set my ATA passsword (through the BIOS), that encryption will then be active. I see no sign of this noted in the SSD Toolkit ...
3
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3answers
2k views

Trying to make SSD boot drive with Windows 7 and old drive is not accessible

I wanted to upgrade my old computer. So, I made a new computer, and bought an SSD (Intel 40GB). I did a clean install of Windows 7 on the SSD. I also put my old hard drive (400GB spinner) with all ...
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2answers
2k views

Fix degraded SSD performance on Mac without full erase

I bought one of Intel's SSD a few months back. When I bought it I could easily reach the advertised speed but after a few months it has degraded very badly. Most any action that requires writing to ...
3
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1answer
3k views

Migrating Dual Partition HDD to Solid state drive

My current Configuration is a Macbook Pro 15" early 2008 with a 100gb HDD and I'd like to replace this with a Solid State Drive. The tricky part is that I have an OS X partition and a Windows 7 ...
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2answers
17k views

Windows 8.1 file explorer is Super slow

I have a newish ( a couple of months old) laptop. i7 4700mq gtx765 8gb ram I'm using an ssd boot dirve and a HDD for storage. The computer has absolutely no problems running programs but it is very ...
2
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2answers
9k views

Is my SSD disk aligned to 4k sectors and if not how do I fix it? [duplicate]

As per another post here on SU, I'm trying optimise performance of a USB 3.0 attached SSD drive. I've been told that aligning to 4k boundaries should improve performance(?). So how can I check that ...
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1answer
1k views

How can I restore RAID 0 on my DELL laptop?

I have been formating my dell laptop for quite a while, I bought it back in 2012, with one year warranty, it ended last august, but I think since the moment I formatted it to windows 8.1 I probably ...
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2answers
3k views

Should I enable TRIM support in Mac OSX 10.6.7 for SSD with SandForce SF-2281 controller (Vertex 3)?

Recent articles in Mac Rumors and Life Hacker (which actually reference this question on SU) say that using TRIM will prolong the life and increase the performance of an SSD. I just got an OCZ ...
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2answers
474 views

Extracting uncommon components from Windows installed on SSD

I have a 50gb SSD harddisk with windows 7 installed on it. I did this for performance for my windows installation and the related applications (Visual Studio, etc). In a projects folder I also store ...
13
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2answers
3k views

Hybrid Hard Drives, how do they work?

I was reading yesterday's Jeff Atwood blog post on Revisiting SSD and I first heard about hybrid hard drives: a HD that has a small SSD portion (let's say 4GB) and the rest is a regular spinning hard ...
9
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7answers
4k views

Are SSDs worthwhile for software development? [closed]

I have a MacBook with 8GB of RAM and a 500GB 7200rpm hard drive. I write software for a living. I am contemplating getting an SSD Drive, but I am unsure about the performance. Do SSD drives really ...
8
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3answers
6k views

What advantages and disadvantages have Hybrid SSD/HDD RAIDs

I just read about Hybrid RAID arrays consisting of SSDs and common HDDs which are supported by Adaptec's RAID controllers. Does such a RAID configuration provide real advantage? Isn't write ...
7
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1answer
7k views

Windows 7 freezes with SSD

I have a new SSD (Kingston Hyper 120GB), with a fresh installation of Windows 7 (and several HDDs). For no apparent reason, my computer freezes. I cannot move the mouse, the sound glitches, but after ...
7
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6answers
6k views

Will I see performance benefits from an SSD in my laptop?

I have a Dell Latitude D520 1.6ghz, 4gb ram. I'm looking to postpone a laptop upgrade by getting one of the new Intel X25-M G2 SSDs. Any thoughts or experiences on if such an upgrade will help? I ...
7
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3answers
3k views

I cloned my SSD to a HDD, but Windows still thinks its solid state

I just finished cloning my 120 Gb solid state drive to a 2Tb HDD using the linux dd utility. Windows seems to think the new HDD is a solid state drive, and it's running very slowly. Is there a way ...
7
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2answers
933 views

Is the speed difference I get from putting my SSD in RAID mode negligible?

I've got two 80GB Gen2 Intel SSDs, currently in RAID 0. I'm about to reformat for an unrelated reason, and I'm wondering if maybe I should just leave them as independent drives. The primary reason ...
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2answers
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How to append data in a file by dd?

I want to append new data in a file stored in SSD. dd if=/dev/shm/test of=/data/sdb/test bs=1G oflag=append But df -h shows the dd command always overwrite the test file, instead appends new data ...
7
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3answers
20k views

Highest effective transfer rate on SATA II

Assuming I have a SATA III SSD drive that has a throughput of >500 MB/s. What is a reasonable estimate of the effective throughput on a SATA II controller? I know that SATA II has 3.0 GBit/s ...
6
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1answer
959 views

How can I optimize the speed and lifetime of SSDs used in a RAID-0?

I have two SSDs in RAID-0 on a Windows 7, 64-bit system. Since it appears that TRIM still isn't supported with any RAID configuration of SSDs, what are some tips/workarounds that I can use? Some ...
6
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3answers
6k views

How to determine SSD's Nand erase block size?

I recently picked up a Crucial M500 240GB SSD (20nm NAND) and I'm trying to figure out the best way to partition it. Currently, I'm using fdisk -cu starting at sector 2048. I believe the nand page ...
6
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5answers
1k views

SSD cache to minimize HDD spin-up time?

short version first: I'm looking for Linux compatible software which is able to transparently cache HDD writes using an SSD. However, I only want to spin up the HDD once or twice a day (to write the ...