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

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125
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6answers
14k 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 ...
13
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2answers
12k views

Third-party SSD solutions in ProLiant Gen8 servers

I was wondering if anyone had any specific experience using Intel DC3700 SSDs (or similar) in the HP (DL380p) Gen8 servers? I'm upgrading a set of database servers that use direct-attached storage. ...
16
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5answers
11k views

Possible to get SSD TRIM (discard) working on ext4 + LVM + software RAID in Linux?

We use RAID1+0 with md on Linux (currently 2.6.37) to create an md device, then use LVM to provide volume management on top of the device, and then use ext4 as our filesystem on the LVM volume groups. ...
3
votes
4answers
5k views

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 ...
4
votes
2answers
2k views

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, ...
9
votes
4answers
10k views

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 ...
15
votes
8answers
6k views

Zeroing SSD drives

We host VPSes for customers. Each customer VPS is given an LVM LV on a standard spindle hard disk. If the customer were to leave, we zero out this LV ensuring that their data does not leak over to ...
26
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5answers
3k views

Do I need to RAID Fusion-io cards?

Can I run reliably with a single Fusion-io card installed in a server, or do I need to deploy two cards in a software RAID setup? Fusion-io isn't very clear (almost misleading) on the topic when ...
10
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3answers
5k views

ZFS - Impact of L2ARC cache device failure (Nexenta)

I have an HP ProLiant DL380 G7 server running as a NexentaStor storage unit. The server has 36GB RAM, 2 LSI 9211-8i SAS controllers (no SAS expanders), 2 SAS system drives, 12 SAS data drives, a ...
2
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2answers
2k views

3rd party SSD drives in HP Proliant server - monitoring drive health

As discussed in a previous question, we have 6 OWC Mercury Extreme SATA SSD drives installed in our HP Proliant DL360 G7 server (using a P410i RAID controller). They work great, and are very fast. ...
2
votes
1answer
962 views

Third-party SSD in Proliant g8?

Anyone having success with third-party SATA or SAS drives with Proliant G8's? I know the G7's were flaky and had BIOS issues. We're looking for real-world success stories with particular brands and ...
29
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9answers
22k views

Reliability of ssd drives

The main advantage of SSD drives is better performance. I am interested in their reliability. Are SSD drives more reliable then normal hard drives? Some people say they must be because they have no ...
20
votes
4answers
2k views

SSD head / cylinder / cluster details

A customer of ours makes industrial robots that run on very old, but stable, hardware and software. The only bottleneck has always been the hard drive in these moving machines. Due to constant ...
12
votes
3answers
3k views

Force renegotiation of PCI Express link speed? x2 card reverts to x1 width

In an effort to circumvent compatibility and cost barriers to using SSD drives with newer HP ProLiant Gen8 servers, I'm working to validate PCIe-based SSDs on the platform. I've been experimenting ...
9
votes
8answers
9k views

Home-brew automatic tiered storage solutions with Linux? (Memory -> SSD -> HDD -> remote storage)

Related to this question about using an SSD for system and HDD for data, except I would like my system to do this automatically... Is it possible to have several layers of storage and push items ...
7
votes
2answers
4k views

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 ...
10
votes
3answers
1k views

HP storage arrays - multiple channels?

Our SQL server is becoming pretty heavily loaded, and all indications point to the disk channel being the bottleneck. The current HP server has a fairly low-end array card, and we're looking to ...
3
votes
2answers
263 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 ...
-3
votes
4answers
4k 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?
10
votes
6answers
9k views

SSD for swap on Ubuntu server

Currently I am reading SSD reviews and I wonder how much exactly I will benefit if I move the 24 GB swap from 7200rpm HDD to SSD. Does anyone implemented swap space on SSD? Is this generally good ...
2
votes
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 ...
10
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2answers
4k views

SSD (Intel 530) read/write speed very slow with RAID 10

Explanation: We have a Server: Model: HP ProLiant DL160 G6 4 x 240GB SSD (RAID-10) 72GB DDR3 RAM 2 x L5639 HP P410 RAID Controller (256MB, V6.40, Rom version: 8.40.41.00) SSD drives are 4 brand ...
8
votes
1answer
4k 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 ...
7
votes
5answers
5k 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 ...
15
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4answers
9k views

Hardware RAID Controller Support for SSD TRIM

Do any hardware RAID controllers available today support TRIM? If not, do any manufacturers have target dates for supporting TRIM? Should I even care about TRIM for SSDs installed in ...
3
votes
2answers
2k views

ZFS: best practices for adding cache to pools

sounds like dumb question but there are no ready answers at SF can the cache pool have different name than the zpool? eg: suppose there is a zpool "tank" serving NFS and iSCSI can a new cache pool ...
23
votes
6answers
3k views

Scaling databases with cheap SSD hard drives

I hope that many of you are working with high traffic database-driven websites, and chances are that your main scalability issues are in the database. I noticed a couple of things lately: Most large ...
8
votes
3answers
6k 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 ...
8
votes
10answers
17k 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 ...
5
votes
1answer
3k 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 ...
4
votes
1answer
4k 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: ...
4
votes
6answers
2k views

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?
3
votes
2answers
3k views

SSD on Vmware ESXI 4 (TRIM? Good Idea?)

I just posted about finding bottle necks and have narrowed it down to having way too many VMs on my machine on one 15K SAS drive. I have plenty of cores and plenty of ram. So I am planning on putting ...
3
votes
4answers
783 views

Recommended SSD Setup

I'm building a new server which will be running a text search service for our online web services. This service requires fast IO so I am trying to further reduce any potential bottlenecks. I would ...
11
votes
4answers
4k views

Should I avoid putting two SSDs in a RAID1 configuration due to performance degradation?

I have a workstation system that will have two 64GB industrial SSDs, and the plan is to have both disks in a RAID1 configuration for redundancy which is set up in the kickstart. The system will be ...
5
votes
4answers
5k views

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 ...
3
votes
3answers
7k 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 ...
2
votes
2answers
113 views

Running “find” command generates high load

I run this command on a Debian server with SSD drives configured as RAID 1: ionice -c 3 find . -type f -amin -1440 -mmin +1441 -not -path custom/ -print0 on a path which contains over 1.7M files and ...
2
votes
2answers
1k views

What are the best options for a root filesystem hosted on SSD under Linux

I'm working on an embedded system which is going to be booting and hosting it's rootfs on an SSD disk. We are currently looking at using Intel X-18M SSDs. The file system structure will have a fairly ...
2
votes
3answers
11k views

SSD - Tweaks/Recommended Configuration

I've just purchased my first SSD drive (a 32GB MLC from Imation) without doing enough research ahead of time in the spirit of giving the new technology a shot and getting myself up to speed by ...
1
vote
1answer
388 views

ssd performance against hdd performance

I have two server, one with a SSD, one with a HDD. I've been running hdparm to see the differences, but the results for Timing cached reads and Timing are quite equal/HDD is faster: SSD: Timing ...
1
vote
3answers
366 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? ...
1
vote
2answers
1k views

HP DL380p Gen8 and PCIe SSD? [duplicate]

I have a doubt about using 3rd party PCIe SSD or SSD generally with HP DL380p Gen8. Do someone have tested it by any chance with 3rd party PCIe SSD and/or SSD's and/or normal HDD's ? or by any chance ...
1
vote
2answers
496 views

Temporary IO boost for an MSSQL server

The company that I am working for is looking at doing a data upgrade on a database to go from one version of an application to the next (Axapta 3 to Ax 2009). This process is very IO intensive and ...
1
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2answers
2k views

Trim on intel x25-m G2 when connected by iscsi

I am running a windows 7 vm on esxi connected to x25-M G2 via iscsi, which is running starwind iscsi on server 2008. Is trim a function of the vm OS or the iscsi server OS or not applicable with ...
1
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2answers
2k views

Switch SATA disks in DELL PowerEdge R410

I need a 1U rackserver for hosting a website running on Windows Server and MS SQL. I plan to have a SSD drive for the system and SQL database and a large 1-2 TB standard SATA HDD for a lot of ...
24
votes
2answers
3k 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 ...
8
votes
2answers
3k views

VMware ESXi SSD on RAID showing as non-ssd

I am replacing a KVM server with a ESXi server. I just installed ESXi 5.5u1 and added a data store. The new server has 4 SSD drives in RAID 6 using hardware RAID. When I added the data store VMware ...
6
votes
2answers
2k views

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 ...
5
votes
3answers
4k views

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 ...