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

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3
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3answers
545 views

What are the main points to avoid RAID5 with SSD?

My understanding is that an SSD has a limited amount of writes. RAID5 performs many writes due to parity information across the drives. So reasoning states that RAID5 would kill and lower the ...
0
votes
1answer
28 views

How can I mount the SSD drive on Amazon's m3.medium?

Amazon's m3.medium instance comes with a 4GB SSD Drive: But I can't seem to find the device using df: $ df -h Filesystem Size Used Avail Use% Mounted on /dev/xvda1 20G 2.9G 16G ...
1
vote
1answer
119 views

HP SSD on ProLiant DL360p Gen8 p420i controller - no TRIM?

We have a HP Proliant Dl360 Gen8 server with the 420i 2Gg disk controller. (646905-421) we have a couple of the HP Gen8 200GB 6G SAS SLC SSDs (653078-B21), (they run in RAID1) We run Debian6 on this ...
2
votes
1answer
42 views

Setting I/O scheduler for SSD based RAID array on EC2 instances

I created a RAID array using the 2 local SSD drives on a EC2 c3.4xlarge instance. # mdadm --create /dev/md127 --level=0 --raid-devices=2 /dev/xvdf /dev/xvdg # mkfs.ext4 /dev/md127 # mkdir /data # ...
2
votes
1answer
695 views

Root Device on SSD instance types. SSD vs EBS confusion

I have an AMI that was originally created from a t1.micro linux. The "Root Device Type" of this AMI is EBS (8 GB) and my web application software is "baked" into this root volume. Now I would like to ...
-2
votes
2answers
59 views

Kickstart fails on SSD disk [closed]

Trying to deploy a 2xSSD server (with mdraid level 1), errors on the 1st line: clearpart --all --initlabel --drives=sda,sdb with the message "sda not found". As the SSD is SATA3, shouldn't it be ...
0
votes
1answer
47 views

Upgrade to 3x Samsung SSD EVO in RAID-0 — what type of RAID controller to search for? [closed]

My current configuration is a RAID-0 with three conventional 2TB hard drives. I want to upgrade to three 1TB SSD EVO disks, also in a RAID-0 configuration. Using SiSoftware Sandra, I found out that ...
1
vote
0answers
29 views

Mount a second ssd drive on centos - How can I figure out which is the unused drive? [migrated]

I need to mount my secound ssd drive to /home2. I already created the folder /home2 - Now, how can i figure out which is the unused drive ? Is this /dev/sda or sdb ? What is the exactly thing i`ve to ...
0
votes
1answer
43 views

JBOD or RAID on a streaming server setup

Currently my setup is 1 main server which holds all the mp4 videos and 3 other servers which holds portions of this video. The process is: when a user uploads a video, it is stored into the main ...
-1
votes
1answer
65 views

webserver on linode and database on digital ocean

Currently hosting drupal websites on linode using apache + php5 fpm+ fastcgi. Among websites one is drupal commerce(max_execution_time,memory_limit are taken care) and all others are low hitting ...
2
votes
2answers
61 views

Database server (MySQL) on SSD - trim command

I can't seem to find much expert information about using a database servers on SSD with regards to trim. I know I can enable RAID and LVM discard, and use an fstrim / cron job or the discard mount ...
1
vote
0answers
27 views

Running fstrim as cronjob - what happens when interrupted by shutdown

One of the ways to implement fstrim on a file system, it to make a cron.daily task that runs fstrim /. This is preferred over -o discard (mount option) by a lot of people, because the latter can make ...
0
votes
1answer
49 views

PCie ssds vs raid? [closed]

I am new to the whole SSD thing, but I don't understand how the following works? I need to be very specific for this question to make sense. 1 x LSI MegaRAID SAS 9361-8i 570$ 8 x Ultrastar SSD800MH ...
1
vote
0answers
55 views

SSD+MDRAID+LVM+KVM results in lower performance than expected

We use kvm for virtualization, the disk images are stored as logical volumes. The logical volumes are stored on a bunch of software-RAID1 (mdadm) arrays composed of Intel DCS3500 SSDs (each array is a ...
-1
votes
2answers
52 views

No advantage from SSD boot drive for 24/7 server? [closed]

Since my OS and applications are loaded into memory upon boot, isn't there no advantage from having my OS on an SSD boot drive for a server that is kept up 24/7? I know there are several assumptions ...
4
votes
1answer
1k views

Implementing Linux fstrim on SSD with software md-raid

I'm currently building a new Ubuntu 13.04 server with 2 256GB SSDs in a raid mirror to run a MariaDB instance. We typically place LVM on top of dm-crypt encryption on top of an md raid 1 array, but ...
23
votes
2answers
1k views

Reliability of SSD vs HDD (Over large temperature variations)

I've got an application which requires data recording in a outdoor environment, and I am interested in the reliability of SSDs vs HDD when placed in a cold (down to -20) and hot (+50) ambient ...
2
votes
0answers
89 views

Centos 6.5, PXE Boot fails to recognize the SSD device

Goal: Add correct ahci/scsi to my initrd for PXE install of OS. I am using Centos6.5 minimal install ISO. I have a Serial interface only (no VGA), new low cost rangley processor system and need to ...
0
votes
1answer
103 views

Using SATA III SSDs for ZFS pools

I'm thinking of building a ZFS server optimized for random access (PostgreSQL database). I figured that I have 2 options: Use pools consisting of the Crucial M500 960 GB SATA III SSDs. Enterprise ...
0
votes
3answers
47 views

Setup replication from one local disk to another local disk ( Ubuntu )

Is there is are some way to setup local replication of the one disk to the another ( Ubuntu ) in the such way that all read operations will be involve only first disk ? Such configuration will be very ...
1
vote
0answers
112 views

Slow disk performance on PowerEdge R720

Every few months PowerEdge with SSD (INTEL SSDSA2BW60) comes with results like: hdparm -tT /dev/sda /dev/sda: Timing cached reads: 690 MB in 2.00 seconds = 344.84 MB/sec Timing buffered disk ...
0
votes
0answers
23 views

SQL server HA when running with PCI Flash device

I want to purchase a PCI based Flash storage device for our ESXi server hosting our SQL Server machine. We use SQL Server 2008 standard edition. storage is on Netapp via NFS. It is a VM (ESXi 5.1) ...
20
votes
6answers
7k 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 ...
0
votes
2answers
896 views

How can I unfreeze an SSD connected to a remote server?

I don't have physical access to the machine, so I can't unplug the drive. # hdparm -I /dev/sda | grep frozen frozen The advice I've read elsewhere is to hotplug the drive, pull the ...
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votes
1answer
225 views

Is it possible to use SSD for storage on Windows Azure?

There is some marketing-speak suggesting that it may be possible ..: http://gigaom.com/2012/06/05/new-windows-azure-goes-all-ssd-to-one-up-amazon-in-the-cloud/ .. but I couldn't find any way to ...
8
votes
4answers
2k views

Measuring 'total bytes written' under Linux

We're quite interested in exploring the possibility of using SSD drives in a server environment. However, one thing that we need to establish is expected drive longevity. According to this article ...
0
votes
1answer
122 views

Linux : SSD performance tweaking queue

I've allready applied well known mountpoint options for ssd, enabled stuff in LVM for ssd optimisation as well. Now i've ran into a possible challenge. Would it be possible to gather information on ...
0
votes
2answers
48 views

How to benchmark maxCache 3.0 with SSDs? [duplicate]

We're a software development company and previously outsourced the HW side of business but now we're looking into building our own private cloud. We recently purchased a few servers, one of which is ...
1
vote
0answers
56 views

mysql - measure amount of write

System : Centos 6.4, PerconaDb/MySQL 5.5.31 Im running relatively small mysql database with some 30 databases, total amount of 12Gb, but heavy on reads, updates and writes (texts, posts, user data ...
4
votes
1answer
3k views

How to over-provision an Intel SSD RAID Array via the Dell H700 PERC RAID Controller

I would like to set up a RAID10 array of 6 Intel SSD 320 SSDs, but over-provision them to enhance their performance and duration as per this PDF: ...
1
vote
3answers
2k views

Determining cause of SSD failure after 30-ish minutes

We have a 64GB SSD drive in a tower server with a local colocation company. This drive and the enter system was built about six months ago, brand new parts. Until this weekend the SSD/system were ...
-1
votes
1answer
51 views

How to test is hardware ssd-cache work?

We have server with hardware raid controller (Adaptec ASR71605Q). It has 10 sas HDD, 2 SSD for cache and 1gb onboard cache ram. On server installed ESXi. On ESXi I'm start Linux, create 2Tb disk for ...
0
votes
1answer
59 views

ext4 production ready on kernel 2.6.32 (debian6)?

I've to maintain a production system on debian6 (kernel version 2.6.32). I'd like to use ext4 on a ssd disk (and generally hope to improve performance upgrading from ext3). I can't find any reference ...
-2
votes
1answer
65 views

SSD life span depends on rewrite [closed]

I want to know the life span of a SSD. Some where i read that If there is more write on the SSD then it will have less life. Is it true? What are the factors mainly effecting SSD life span. Please ...
0
votes
3answers
143 views

Does software RAID-0 really improve performance?

I am going to lease a server and I have two options, SATA or SSD, I decided to save the money and go for the SATA option. But I do not need all that storage they are giving me! So I thought MAYBE I ...
-2
votes
1answer
41 views

Processing data faster using ssis and an ssd drive

We have a new local server that processes data using sql server 2008 and ssis. in this server i have dedicated drive to do different things. the c drive is for the os and software. the d drive is for ...
1
vote
0answers
58 views

Enabling Disk Encryption on DC S 3700?

I have a server running Debian stable with two 100GB Intel DC S 3700 drives in a Linux MD RAID 1. According to Intel, these drives support 256-bit AES encryption and I would like to encrypt the data ...
1
vote
1answer
683 views

How can I use full 32GB of SSD in my c3.large EC2 instance?

I have created an c3.large instance using amazons default image "amazon-linux-centos-64-bit (ami-673af20e)". When I set it up I created a root volume of only 8GB. So theoretically I should be able to ...
2
votes
1answer
340 views

Should I enable “Patrol Read” on SSD drives?

LSI, Intel and Dell RAID controllers (perhaps others) have a "Patrol Read" feature to try to spot when a drive is failing before it completely fails. LSI seems to disable patrol read on SSD by ...
1
vote
1answer
202 views

HP ProLiant DL180 G6 SSD upgrade (sata 3)?

We've currently got a HP ProLiant DL180 G6 server with a Smart Array P410i raid card, and 8 HDDs running off it. We also just bought a new SATA Intel SSD drive to expand the server, that we're ...
0
votes
3answers
122 views

RAID10 Without BBU, With UPS

My datacenter says that each rack has primary and backup power on each rack. I assume this means there is a UPS for each server. Therefore, do I have any need of getting a BBU for the following setup? ...
2
votes
1answer
258 views

MacBooks are destroying SSDs

I'm opening this topic to find the cause of our SSD failure rate of +50%. We work with Mac (13" Macbook Pro & 13" Macbook Air), with installations of both Mac OSX Mountain Lion and Ubuntu. 90% of ...
3
votes
1answer
117 views

FreeBSD 9.2 shows SATA3 drives as SATA2

I'm running FreeBSD 9.2 on an Intel S2600GZ server board with 4 Intel SSDs. Both the server board as well as the disks are SATA3 capable. However, FreeBSD seems to think they are SATA2. Nowhere in ...
3
votes
2answers
130 views

Age replacement policy for hard disks and SSDs at servers

I'm planing an age replacement policy for our storage and servers. Most of them are for DBs and some for images (static content) so yes, they have an huge I/O everytime. Also, we use Samsung 840 Pro ...
5
votes
1answer
337 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 ...
7
votes
5answers
4k views

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 ...
0
votes
1answer
48 views

How to setup log and data files on SSD for SQL Server?

I'm setting up my production SQL server. I have two 800GB SSD disks available to me (for Windows and SQL Server). Where should I put databases' data and log files? How many tempdb files should I ...
103
votes
5answers
9k views

Are SSD drives as reliable as mechanical drives (2013)?

SSD drives have been around for several years now. But the issue of reliability still comes up. I guess this is a follow up from this question posted 4 years ago, and last updated in 2011. It's now ...
3
votes
3answers
895 views

Is it wise to use SSHDs (Solid state hybrid drives) on a server?

I have a bunch of servers with very heavy I/O that currently use SATA3/SAS drives, but do suffer from I/O wait on the SATA drives, and I have just been alerted to the existence of SSHDs which cost the ...
0
votes
4answers
2k views

Recover lost NTFS partition on SSD

About 2 month ago I upgraded my Dell Latitude E6500 laptop with a Corsair Force F120 SSD drive. Everything worked well until about a week or so back. I started the computer and was faced with a beep ...