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

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Configuring SQL for optimal performance… SSD or HDD?

Does anyone know of any comparisons that show how SSDs compare to HDDs for performance in a SQL environment? I'm trying to understand what type of performance benefit might be gained by moving to ...
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4answers
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Tape vs SSDs backups regarding long-term storage reliability

My question is very specifically about solid state drives, not regular hard drives. I would like to put in place a grandfather-father-son backup scheme, with the SSDs being used for the grandfather ...
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4answers
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Does putting the XFS log on an SSD significantly improve performance?

I have a five disk array running XFS in RAID5, and I would like to improve it's performance. I have seen some hints that putting the log onto a separate device can help, does putting the log onto an ...
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5answers
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Squid or Other HTTP Caches with SSD Cache Store?

I'm contemplating setting up a squid (or possibly varnish) cache on a system with SSD drives. The obvious benefit is that these systems have great READ speeds and I expect my hit ratios to be fairly ...
7
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3answers
778 views

Can an SSD notify the hosting OS that its wear level is getting high?

I read a lot about SSDs and I am interested in them for server use. My biggest concern is their reliability. A lot of writes shortens their life span. I can mitigate this problem if I can run some ...
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5answers
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SW SSD Raid 1 over HW RAID 10

A provider(data center) recommended I go with 1TB SSDs in a software RAID 1 over HW RAID 10 with mechanical drives. Their quote: Typically SSDs are most reliable than RAID cards and since you ...
6
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5answers
810 views

Server SSD upgrade

I have heard SSD's are a bad idea for servers are they? Do they eliminate the requirement for RAID i.e. are they more reliable overall? The cost isn't an issue here. Can someone provide direction on ...
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3answers
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How do SSD fail near end of life?

Let's say a MLC SSD has lasted a very long time and the first cell has hit its last erase cycle and refuses to erase. What happens after that? Does the controller detect that as a bad block and ...
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3answers
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Secure Delete on SSD

Will a "traditional" secure delete utility that overwrites physical sectors on a magnetic HDD work on an SSD, or will the SSD simply "remap" the sector to avoid the expensive delete operation and ...
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4answers
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Do any software RAID solutions support the TRIM command?

This is a broad question -- I'm not asking about a particular RAID level or OS.
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2answers
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What's in my ZFS ARC and L2ARC caches?

I have a simple ZFS setup at home, four disks mirrored, 8GB ram and 120GB Intel X25-M SSD for L2ARC. I ran zpool add poolname cache cXtXdX then generated load and eagerly tracked the warming process ...
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7answers
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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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4answers
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Pros and cons of installing ESXi on a SSD vs USB flash drive?

I'm debating on doing an ESXi 4.1/5.0 installation on a USB stick or a pair of 32GB SATA II SSDs (RAID1 mirror). According to VMWare's documentation, when ESXi is booting it looks for a 4GB space for ...
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4answers
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MySQL, disk I/O and SSD drives

We have a LAMP box with 2x mirrored 1 TB WD Black Caviar disks running the whole OS and MySQL. 8 GB / RAM, 2x quad core CPUs. We're really taxed on disk I/O, and I've been thinking of ...
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4answers
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Do you use SSD in a production environment yet? [closed]

I'm not asking whether or not it's worth the money, as in Question 2425. I'm interested to see the level of acceptance in the production world up to now. Money can certainly relate to the answer, ...
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7answers
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SSD as single drive in workstation pros and cons

What are the pros and cons of using an SSD as the only drive in a workstation instead of an array of several HDDs or a fast 10k/15k HDD? To be more specific, Intel X25-M 80GB with Windows 7 x86-64 ...
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4answers
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dd vs. secure-erase for reconditiong SSDs

Does writing zeros to an entire ssd (dd if=/dev/zero of/dev/sdX) give the same performance restoring effect that you get from a "secure erase", or does secure erase do something else as well? ...
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7answers
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What is faster? A local mechical hard drive or a solid state drive over gigabit ethernet?

SSDs are rather new, so I couldn't find this information on the Internet. Would the performance of a local hard drive connected using SATA2 get out performed by a SSD over gigabit ethernet? In terms ...
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4answers
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SSD drives and RAID configurations vs LVM

Background: I'm familiar with the basic RAID levels, and am curious to know if using SSD devices in a RAID0 or RAID5 would be a better deployment than adding them to a large LVM volume. ...
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3answers
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Dell SSD options and 3rd party SSDs in Dell hardware

Anyone have any experience with Dell's SSDs? We're looking at using them for a machine running a key value database like Tokyo Tyrant. They're expensive as well as being pretty small. Only 25/50GB ...
5
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3answers
670 views

SSDs for archival purposes?

Given the physical characteristics of flash memory, are SSDs an appropriate long-term storage medium for backups, etc.? Is their decay rate such that it is amenable to using them for rolling backups ...
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2answers
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LSI 9260-8i w/ 6 256gb SSDs - RAID 5, 6, 10, or bad idea overall?

We're provisioning a new production server for our reasonably busy website. Our choice of host have available a 6 drive configuration with a LSI 9260-8i card. My initial thought was to fill all six ...
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4answers
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Which FileSystem is best for CentOS 5 on SSD?

Background: We have gigs of data, which require to process large files simultaneously and in parallel with similar processes. We are going to get SSD just because of fastest latency. We will install ...
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1answer
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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
973 views

Proliant ML310e Gen8 Smart Array Predicted Failure Issue with SSD

This is a question related to this one: Third-party SSD solutions in ProLiant Gen8 servers but not covered by the question or the answers. I have an OCZ 120 gig SSD as system drive on a Proliant ...
5
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1answer
386 views

Linux software RAID5 on SSD. One SSD 40% more worn out than the others

We have a 6 SSD, RAID5 volume. The SSD disks we are using are Crucial M4-CT512M4SSD2 firmware 000F. We write 100 ~ 200GB data through MySQL InnoDB to the volume daily. The RAID5 volume is only used ...
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5answers
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Setting up array of SSDs for Oracle Database, recommendations?

I am configuring a server for a small, but read I/O intensive database. It serves as a master index for public access to a larger Oracle RAC database. When looking at the requirements for I/O, it was ...
5
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1answer
3k views

Why the performance decrease for an SSD when using Hyper-V?

I've just installed my new M4 256GB on a Windows Server 2008 R2 Hyper-V server. On the host system using Crystal Disk Mark I've got 212 Mb/s as 4k QD32 write performance, but when I create a VHD disk ...
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1answer
515 views

Slow SSD Read on Server 2008 SP2

Im using a Intel X25-M 80G with the latest firmware. on XP /w using IDE and WIN7 using AHCI I get read speeds up to 250MB/S. But when running it with Server 2008 SP1 or SP2 on AHCI, I get read speeds ...
5
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1answer
41 views

Windows Server 2012 with SSD local drives — Random or Sequential I/O?

How can I determine where my Windows Server 2012 is using Random or Sequential I/O operations when writing/reading the local SSD storage? I have been asked to provide details to our hardware vendor ...
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2answers
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Will adding a SSD cache device to my ZFS storage improve performance?

The server has 4GB of RAM and my zpool is made up of 15.5k SAS drives arranged like this: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 raidz1-0 ...
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6answers
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What are the the potential drawbacks of using non-OEM hard drives in a server?

I'm currently speccing a Hyper-V host for my company and would like to use solid state drives for local storage. The problem is, most oem drives have a hefty premium when compared to retail ...
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3answers
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Why do servers have SAS instead of SSDs? [closed]

I was wondering why do servers still come with SAS disks instead of SSD disks? I know that SAS are faster than normal hard drives but they are still much slower than SSDs. I think they are more ...
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5answers
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Software to fix SSD performance degradation

The current generation of SSDs suffer write-speed slowdown (for random writes) over time because of the way data needs to be read and then written in blocks. Various manufactors have fixes coming out ...
4
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6answers
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How SSD hard drive affected speed of your website (asp.net/linq/ms sql database)

I have a small database (<1G) But we have a lot of complex logiс in website and client complains on render time, which is 3-5 seconds. We are not google, and thousands of users a day is our dream, ...
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4answers
549 views

32 core (each physical core) 2.2 GhZ or 12 core (6 physical cores) 3.0GHZ? [closed]

I am working on a multithreaded application (Forex trading app built on C#) and had the client upgrade from the 12 core 3.0GHZ machine (Intel) to a 32 core 2.2 Ghz machine (AMD). The PassMark ...
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4answers
325 views

What is the best hard drive for random-reading small blocks

We need to do random reads (seeks) on 5 KB blocks from a huge file (150 gigabyte). What hard drive is the best suited for this type? What is the expected performance from an SSD in this scenario? I ...
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9answers
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Rapid SSD vs. RAM in servers

Per GB prices of rapid SSD (like Intel X25-E) come close to prices of high-end RAM. So what extra advantages does SSD give you? What are particular reasons, why you buy SSD, instead of just putting ...
4
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9answers
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Install 2.5" SSD drives into PowerEdge 2950

I have a PowerEdge 2950 (not III) rack-mounted server with a 3.5" SAS backplane. I'd like to put one or two Intel X25-M drives into it for hosting of a few virtual servers on faster disk. Can this be ...
4
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6answers
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Most Appropriate log-structured file system to use with Linux / SSD?

With the development of log-structured filesystems and the introduction of (relatively) inexpensive SSDs, is there a best choice for a log-structured filesystem for use on Linux with SSD drives?
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2answers
280 views

Optimize SSD storage on Centos 6.6 - KVM

I have a Dell R610 with hardware: H700 raid card 4xMicron MX100 512GB -> configured raid 10 I have installed Centos 6.6 on this server and configured: KVM virtualization Volume Group for raid 10 ...
4
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2answers
996 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
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3rd party SSD drive in HP Proliant server only shows 3G transfer speed

After receiving some excellent advice in a previous question, we've bought a OWC Mercury Extreme Pro drive for use in our HP Proliant DL360 G7 server. Both the drive, and the P410i array controller, ...
4
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2answers
2k views

ZFS with L2ARC (SSD) slower for random seeks than without L2ARC

I am currently testing ZFS (Opensolaris 2009.06) in an older fileserver to evaluate its use for our needs. Our current setup is as follows: Dual core (2,4 GHz) with 4 GB RAM 3x SATA controller with ...
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2answers
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Does it makes sense to run “optimize table” when the mysql database is stored on SSD?

The manual says about "optimize table": "Deleted rows are maintained in a linked list and subsequent INSERT operations reuse old row positions. You can use OPTIMIZE TABLE to reclaim the ...
4
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1answer
243 views

Dell 2950 - Can I mix SSD with spindle HDDs?

I have a Dell 2950 with a Perc 5/i controller inside it. I don't want to spark a debate about drive types and which is "better" etc etc. Just simply; I would like to put in 2x Cheetah 15.5k SAS ...
4
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2answers
1k views

What is the best Solid State File System (SSDFS) for Linux?

EXT4 is not a solid state file system. It won't take full advantage of the hardware and it will ware out the drive. So what is the best Solid State File System for Linux? I am looking forward to ...
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5answers
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SSDs as Linux swap for large virtual mem applications?

This question topically touched on this, but running on 64-bit Linux, I have a set of data caching JVMs as well as wanting a large web cache. Each cache today is configured to in gross fit in system ...
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)?
4
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1answer
524 views

How to update SSD Firmware on RAID Controllers

Got some servers with RAID Controllers and SSD. Raid Controller: LSI MegaRaid 9271-4i SSD: Intel 520 The MegaRaid controllers have the ability to update drive firmware using MegaCLI. Intel for ...