Solid-state drive refers to a data storage device that uses solid-state memory to store its persistent data.

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Vertex 2 SSD Freezing 60 seconds at a time

I have a OCZ Vertex 2 SSD that I've been using for a few years in a Win2k8 64-bit "Server" (Dell Precision M4300). Every few weeks it gets in a mood during which it temporarily freezes very often for ...
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4answers
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HP D2700 enclosure and SSDs. Will any SSD work?

I've got an HP D2700 enclosure that I'm looking to shove some 2.5" SSD drives in. Looking at the prices of HP's SSD drives vs something like an Intel 710 and even something less 'enterprisey', there's ...
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1answer
311 views

Sync SSD to spindle drive using RAID or DRBD

I'm setting up a server with and SSD as the primary drive, and would like to duplicate the data onto a cheaper drive as a block-level backup (à la RAID1). Since I don't want to hobble the performance ...
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3answers
1k views

How to use 2 SSD disks for best performace?

I am going to format 2 120GB Intel 320 SSD to be used for a high traffic Drupal server. The server had Xeon E1270 CPU and 32GB RAM. I'm using Debian Squeeze 64 bit. Here are my questions: What ...
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3answers
764 views

What HD/SSD performance benchmarks are relevant to SQL Server?

I'm looking to buy an SSD for a SQL Server computer, what benchmarks should I be comparing? High/low queue depth? Random/sequential transfer rates? IOPS?
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2answers
2k views

MySQL moving ibdata & ib_logfile

I'm trying to move ibdata & ib_logfile on ssd drive. I tried this way, but it don't work: service mysql stop cd /var/lib/ cp -ra mysql mysql_backup cp -a mysql/ibdata1 mysql/ib_logfile* ...
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3answers
1k views

SSD, AHCI and write performance

We've started to deploy SSD drives to our developers workstations. At this moment we're having the unpleasant surprise that the systems using the new SSDs often freeze, with the HDD activity led ...
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2answers
644 views

Worth it to move /var to physical disk vs logical?

Brief question about partition layout. I use an SSD for /, /boot, /usr, & /home partitions. I'd like to move /var to a mechanical disk to minimize writes to the SSD. I'm mainly concerned about ...
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1answer
282 views

Server Config Software Raid Slow Read

I have 6x WD Caviar Black 1,5 TB in Software RAID 10 / 1 / 0 (Centos 6.2 / mdadm) cat /proc/mdstat Personalities : [raid10] [raid0] [raid1] md0 : active raid1 sdf2[5] sda2[0] sdb2[1] sdd2[3] sdc2[2] ...
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3answers
1k views

SSDs or 15k sas for server OS / application drive?

I'm thinking about upgrading the OS / application drive for an HP DL 580 G5 running windows server 2003 64-bit. We currently use 3 75GB 10k rpm SAS drives in RAID 1. The server is mainly used for ...
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2answers
474 views

SSD goes undetected/offline unless cold/hard booted

I've had a SSD for a little over a year on a sever. And once in a while, the server will bluescreen/be completely unresponsive. I've found out that it's the SSD going offline while the system is ...
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1answer
1k views

Expand PERC 6/i RAID 10 SSD array, or add new VD for SQL Server?

On a Dell R710 server running Window Server 2008 R2 there are currently 4 50GB SSDs in a RAID 10 array, and I'm adding 2 additional 50GB SSDs. This server runs SQL Server and not much else. If these ...
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1answer
400 views

SSD in early 2008 Xserve Apple Drive Module

Pretty much the title: it possible to use a modern, 2.5″ SSD in an Apple Drive Module on a early 2008 Xserve? This would be replacing a 15k RPM SAS drive, and in most places I've looked that HDD is ...
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2answers
423 views

Ssd TRIM/DISCARD details

I am writing a script and I have a few questions about the inner workings of the TRIM command. If TRIM is issued for an entirely empty (zeroed) erase block, does the garbage collector still delete the ...
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2answers
7k views

SSD, Erase Block Size & LVM: PV on raw device, Alignment

I want to install a new SSD and use the the whole device as a PV for LVM - in other words: i don't plan to put even one partition on this device. So aligning partitions on the erase blocks is not ...
4
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1answer
651 views

Write-Back and Write-Through for SSDs

Are there any special implications of Write-Back vs Write-Through that should be considered when creating an SSD raid array?
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3answers
4k views

Can cloning a hard disk drive to a SSD drive physically damage the SSD or the performance of the SSD?

I have a new SSD drive, I want to use it to replace the old mechanical hard disk drive in a laptop. The laptop had a new O/S (Windows 7 64-bit) installed about 9 months ago and I want to know if it's ...
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4answers
4k views

What effects do magnets have on HDDs and SSDs? [closed]

What do magnets do to hard disk drives and solid state drives upon contact?
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1answer
2k views

Filesystem and partitioning for SSDs on Linux

What are the best practices for using an SSD on a Linux workstation? Specifically, I'm interested in: What mounts I should put on the SSD and what I should keep on my HDD What filesystem I should ...
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1answer
655 views

Is it possible to get hdparm to report the current level of performance degradation on my SSD?

I work on a product that is a headless Debian Linux system with removable Intel X-25M solid state drives. Recently we noticed that the read/write performance of these drives degrades over time, and ...
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1answer
237 views

configuration for max read throughput on ssd: pcie vs sata vs raid

I'm looking to configure a storage setup, using ssd's, that will deliver the fastest read throughput on large (2+ GB) files on a 24 core (12 physical core) system. The data is static for the most ...
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5answers
695 views

What are the more reliable SSDs to use in an enterprise environment? [closed]

We all know SSDs are fast... but aren't all that great when it comes to any computer that writes to disk many times in any given minute. Are there any SSDs that are suited for an enterprise ...
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1answer
549 views

MySQL Cluster on SSD

We are planning to implement a four node MySQL Cluster and are considering using SSDs as the storage. We would like to get a high level of performance and very low latency on disk IO from the small ...
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2answers
969 views

Can I use an SSD as Cache to a NAS?

There is a NAS with Raid 10 that holds resources. At a time, around 24 machines try to access the same resource (3d rendering in a render farm). Although the network is 1Gbps and NAS is fast, the ...
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2answers
1k views

TRIM in centos 5.X?

I've got a bunch of centos 5 boxes with Intel X-25 drives (x25-m in dev, x25-e in prod, I think). We're seeing severely degraded disk performance on one of our dev boxes (which easily does 5+ gb of ...
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2answers
4k views

ext4 filesystem corruption — maybe hardware error?

I'm getting these errors in dmesg after about half an hour after I turn on the computer: [ 1355.677957] EXT4-fs error (device sda2): htree_dirblock_to_tree: inode #1318420: (comm updatedb.mlocat) ...
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1answer
172 views

Missing files in Windows 2008+VHD+SSD

I have running Windows 2008 Server machine on my SSD disc from VHD file. Today while I was working with Windows the 30% of files disappeared. There are only folders left and no files. I can't find ...
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2answers
550 views

Rule of thumb: SATA for storage & serving static content, SSD/SAS for databases?

The question says it all. But, is it true? Can someone explain what's the differentiating factor here (how one type of disk is better than another for a specific purpose)? (FYI, I've tried searching, ...
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2answers
401 views

SSD redundancy via HDD

Is there a way to guarantee redundancy to an SSD using an HDD? Raid 1 is the best choice to guarantee redundancy in HDDs, but SSDs are too expensive to guarantee redundancy via RAID. If I was to ...
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2answers
968 views

How much space should I leave free on an SSD to ensure performance and stability?

I have heard from various sources that if you use close to all of the storage on your disk you will run into performance and/or reliability issues. Is this also true of SSDs? If so how much free space ...
0
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2answers
281 views

Recommended filesystem, mysqltmp and filesystem related settings for a mysqld box running ssd + BIG ram + linux?

What is the recommended filesystem + mysqltmp location when dealing with a ssd based system that has some ram to spare? Currently we run our mysqltmp folder on a 4gb tmpfs partition. Works great. But ...
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1answer
185 views

SSD RAID 0 Setup for database application. What results should I look for?

I guess for database applications Random 4K Read/Write values of the SSD should be the one which should be checked first. The question is how many queue depth should I check? As far as I see Random ...
5
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7answers
2k views

setup lowcost image storage server with 24x SSD array to get high IOPS?

I want to build let's name it a lowcost Ra*san which would host for our social site the images (many millions) we have 5 sizes of every photo with 3 KB, 7 KB, 15 KB, 25 KB and 80 KB per Image. My ...
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1answer
754 views

What's the difference between Adaptec's “maxCache” and “Hybrid RAID” technologies?

http://www.adaptec.com/en-us/_common/maxcache/ http://www.adaptec.com/en-us/_common/hybrid-raid/ They sound similar, but there's no detailed description of how either of them work.
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4answers
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How to determine number of write cycles or expected life for SSD under Linux?

We've been running an SSD (Intel X25-M) in a Linux (RHEL 5) server for a while, but never made any effort to figure out how much write load it was under for the past year. Is there any tool under ...
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3answers
615 views

Using SSD drives in a raid in an operation involving little to no deletes

From what I've been able to understand when reading about the case with Solid State drives and raids, the problem is that TRIM cannot be used for them in a raid configuration, thus, resulting in the ...
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1answer
155 views

Can I expect better read/write performance for fileservers in large companies shortly? [closed]

Thanks to this article (in Norwegian), I started researching a bit about the new Intel Solid-State Drive 710 Series, which is a MLC with about 30 times improved endurance. It seems like they are ...
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1answer
428 views

How should I partition a 64GB SSD for multiple Linux installations? [closed]

Are there any things I should keep in mind in order to increase the longevity and efficiency of my SSD?
4
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1answer
118 views

RAID Mirror with difference HD types

Can a SSD and a non SSD be setup in a Mirrored raid configuration (non software)?
2
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1answer
1k views

Who manufactures the enterprise SAS SSD drives sold by HP?

I'm curious about who manufactures the SLC and MLC Enterprise SSD drives sold by HP. They are labeled "6G SAS Hot Plug Enterprise Performance Solid State Drives" and "6G SAS Hot Plug Enterprise ...
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6answers
8k views

Verify TRIM support with BtrFS on SSD

We are looking into using BtrFS on an array of SSD disks and I have been asked to verify that BtrFS does in fact perform TRIM operations upon deleting a file. So far I have been unable to verify that ...
2
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2answers
187 views

SSD linux aligment

Hi I have bought a ssd disk and Im not sure if I aligned it correctly. If I understand it correctly the starting sector should be dividable with 512 and it does not matter when the partition ends as ...
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1answer
1k views

Using X25-E SSD on Dell R710 w/PERC H700

I noticed that StackExchange/ServerFault is using a Dell R710 with PERC H700 controller and Intel X25-E SSDs for a database server. We're trying to do the same thing! We're currently running the ...
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1answer
213 views

SSD Write Performance and Relaibility [closed]

SSD do give a really fast Random Read Performance over conventional Hard Disks typical data transfer size is 4k or 8k.Although the Sequential Reads performance is not that huge, data transfer size of ...
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2answers
135 views

Solid State Devices [closed]

Why is solid state devices not a good option to store data for a very dynamic (frequent updates) oracle database? Although for read intensive databases ssd does give a huge performance improvement.
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1answer
345 views

Performance question fast cpu vs. ssd drive for web application [closed]

I need to setup a dedicated server for running a web application with sql server at the back end. Only thing at this point matters to me most is the performance for web users. Here are my choices: ...
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1answer
195 views

Will SSD makes software installation/drive re-imaging faster? [closed]

Given that there is not much of a difference between entry-level mechanical drives and SSD based on average write throughput, I'm wondering if switching to SSD will make OS installation (or software ...
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2answers
828 views

Hyper-V Core: Dedicate SSD for pagefiles

I want to move pagefile.sys from C: -HDD- to S: -SSD- on Hyper-V Core. I just upgraded RAM from 8GB to 16GB. 8GB was pretty enough. I also want to move guest OSes' pagefiles to SSD as .VHD format. ...
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1answer
1k views

Is TRIM possible on SSD disks in RAID 1?

I am going to build a new server to handle a high-traffic php/mysql site. I am going to use SSD disks to benefit from fast random read performance but really got confused about choosing the right SSD ...
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1answer
346 views

Windows Storage Server and SSDs in Raid 0 - Slow performance

We have a computer running Windows Storage Server 2008 R2 with 6 SSD in RAID 0. This storage computer has one PCI-E with 4 Ethernet ports and we connected it to a gigabit switch to other computers ...