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

learn more… | top users | synonyms

1
vote
2answers
173 views

I have 2 Servers, Use Faster server for Web (IIS) or Database (MySQL)?

I currently have 2 1U rack servers, one running IIS the other MySQL. I'm replacing the database server because the hardware is old. The new server I purchases is also faster than my web server ...
-3
votes
4answers
3k views

What RAID controller comes with DL360 G7?

I plan to setup RAID10 using SSD drives. What RAID controller comes with the HP DL360 G7? Is it a real Hardware RAID controller? And it is compatible with CentOS Linux? Will SSD be ok in RAID10?
1
vote
1answer
528 views

IO-intensive processes hang with iowait, but no activity going on

I have a bunch of IO-intensive jobs, and to boost performance, I just installed two SSDs in a compute server, one as a scratch file system, one as swap. After running for some time, all my processes ...
16
votes
5answers
16k views

Do SSDs support SMART?

S.M.A.R.T. (for Self-Monitoring Analysis and Reporting Technology) is a wonderful technology to detect hard drive failure before it really happens. But is S.M.A.R.T. relevant for SSDs?
0
votes
2answers
179 views

New to Windows Server 2008, can i change system raid

I have bought Windows Server 2008, but I am not sure if I should install it now or wait until I get my third system disc. I currently have 2x 32gb SSDs. I am going to buy another disc, because the ...
6
votes
4answers
4k views

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.
1
vote
0answers
161 views

Adding SSD boot disk to machine running RAID 10

I have a server (dev rig) that runs Windows 2008 R2 and boots from a RAID 10 setup. Now I want to add an SSD disk that will contain Windows 7 (could be dual boot, but dont plan on salvaging the ...
2
votes
3answers
1k views

What would happen if I did a raid on a SSD and an HDD?

I am building another server (cheap) and would like to go with a 256GB SSD drive for my boot and data. This will be enough for my needs, but just having one SSD scares me for a couple of reasons. If ...
4
votes
3answers
444 views

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 ...
4
votes
1answer
277 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 ...
1
vote
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 ...
0
votes
3answers
707 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?
2
votes
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 ...
2
votes
2answers
618 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 ...
0
votes
2answers
1k views

SSD seems dead after wakeup from Windows Sleep, BIOS stalls but doesn't find it anymore

The morning, the following scary scenario happened: I woke up my Windows system Typed in my username and got an error (something like "could not load security xxx", but unsure of exact wording) ...
0
votes
1answer
257 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] ...
1
vote
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 ...
2
votes
2answers
1k views

OK to replace 2 SAS HDs with 2 SATA II SSDs on PE2900?

Is it OK to replace 2 SAS HDs with 2 SSDs on a PE2900 with a PERC 5/i Integrated RAID controller? In both cases, the drives are configured as a RAID 1 system volume (OS and programs). In addition to ...
2
votes
2answers
369 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 ...
5
votes
7answers
2k views

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 ...
0
votes
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 ...
1
vote
4answers
2k views

SQL Server 2008 data directiories in SSD

I am going to install a new SQL server 2008 instance on my development/testing machine. My machine have one 7200rpm 500GB SATA Disk (C:OS) and one Intel X25-G2 80GB SSD(D:). Details machine config is ...
3
votes
1answer
336 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 ...
1
vote
2answers
398 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 ...
4
votes
1answer
528 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?
9
votes
4answers
3k 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?
5
votes
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 ...
1
vote
1answer
583 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 ...
0
votes
1answer
227 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 ...
2
votes
2answers
4k views

ESXi: Which SSD / important SSD parameters?

I want to setup a small ESXi server, which has to be silent, therefore I will use a SSD drive, however I am not sure which one I shall use and which parameters of a SSD are important for usage with ...
0
votes
5answers
666 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 ...
7
votes
10answers
15k views

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 ...
1
vote
1answer
514 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 ...
4
votes
2answers
839 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 ...
0
votes
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 ...
2
votes
2answers
3k 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) ...
0
votes
1answer
166 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 ...
11
votes
3answers
4k views

SSD TRIM (discard) problems with ext4 on Crucial C300 SSDs with CentOS 5.5

Playing around with using a modern kernel (2.6.37 currently) on an older OS (CentOS 5.5) so we can get TRIM (discard) working on our SSDs (Crucial C300s). The most recent hdparm (9.37) concurs that ...
0
votes
2answers
505 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, ...
12
votes
9answers
6k views

Is using 2 solid state drives in RAID 0 going to be reliable?

I am thinking of upgrading from a Western Digital 10k RPM hard drive to using two Intel-X25 solid state drives in RAID 0 configuration. I will be using this for hosting the operating system and ...
1
vote
2answers
355 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 ...
3
votes
4answers
4k views

SSD + Hard Disk RAID-0 Efficiency?

Recently I bought a PC that came with a 64GB SSD along with a 300GB 7200 RPM hard disk drive. I thought that they would use the 64GB SSD to install the OS with the HDD acting as a data drive. I was ...
0
votes
2answers
277 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 ...
1
vote
2answers
882 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
votes
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 ...
0
votes
1answer
838 views

PERC 5/i and SSD

I have a PowerEdge 2950 with PERC 5/i and 4x 300GB 10K SAS drives in RAID 10. I want to add a secondary RAID 0 virtual disk using 2x SSD in the extra two slots. I know I'll need a 2.5" -> 3.5" adapter ...
1
vote
1answer
682 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.
4
votes
5answers
1k views

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 ...
3
votes
3answers
594 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 ...
-1
votes
1answer
152 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 ...