Linked Questions

33 votes
10 answers
23k 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 ...
Dani van der Meer's user avatar
29 votes
9 answers
11k views

Consumer (or prosumer) SSD's vs. fast HDD in a server environment

What are the pro's and con's of consumer SSDs vs. fast 10-15k spinning drives in a server environment? We cannot use enterprise SSDs in our case as they are prohibitively expensive. Here's some notes ...
David Budiac's user avatar
37 votes
5 answers
28k views

Mean Time Between Failures -- SSD

The Mean Time Between Failures, or MTBF, for this SSD is listed as 1,500,000 hours. That is a lot of hours. 1,500,000 hours is roughly 170 years. Since the invention of this particular SSD is post-...
OSE's user avatar
  • 473
26 votes
7 answers
67k 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. ...
gwf's user avatar
  • 361
23 votes
5 answers
7k 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 ...
Knelis's user avatar
  • 333
17 votes
8 answers
13k views

Understanding NVMe storage and hardware requirements

I'm a bit confused about the recent developments in PCIe-based storage, particularly as it relates to the NVMe specification and its hardware compatibility. While I've worked extensively with SSDs in ...
ewwhite's user avatar
  • 198k
23 votes
4 answers
18k views

How effective is LSI CacheCade SSD storage tiering?

LSI offers their CacheCade storage tiering technology, which allows SSD devices to be used as read and write caches to augment traditional RAID arrays. Other vendors have adopted similar technologies;...
ewwhite's user avatar
  • 198k
15 votes
3 answers
6k 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 ...
KenD's user avatar
  • 1,147
15 votes
2 answers
27k 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 ...
digitaladdictions's user avatar
9 votes
3 answers
32k views

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 ...
katie's user avatar
  • 101
8 votes
4 answers
23k views

Samsung 840 Pro SSDs in a Dell R720

We have a MySQL database server running on an Dell PowerEdge R720 (PERC H710 Mini RAID controller) ( (Ubuntu 12.04). We're considering upgrading the 2 x 146GB 15k SAS drives to Samsung 840 Pro SSDs. ...
BT643's user avatar
  • 571
4 votes
4 answers
7k views

RAID 10 - many slow disks vs fewer fast disks

I am looking to buy HDDs for a single server which will be used as development server. The server will use ESXi as hypervisor and will have some but not too many virtual machines (web server, database ...
Noctalin's user avatar
4 votes
3 answers
21k views

What are the pros & cons of 4xSSD(512Gig) in a RAID10 vs. 2xSSD(1Tb) no RAID?

Lots of read and write operations that my current setup of 4xSAS15k drives in RAID10 is having made me think of a new fast storage. My server is busy with a demanding database, lots of pages, php ...
CamSpy's user avatar
  • 145
1 vote
2 answers
4k views

When reading SSD drive specs, what's the difference between MB/s and IOPS?

I'm trying to find a suitable SSD drive for my database server (postgres on debian 7 amd-64), and I find that for some SSD drives, while read speed is specified in MB/s, write speed is in IOPS. To ...
zaadeh's user avatar
  • 161
6 votes
1 answer
11k views

Trim support in Hardware RAID (Perc H700)

We are about to order a dell R610 with a H700. We were thinking of using 2 X Samsung 850 Pro 512Gb drives in RAID 1. The question is does the Perc H700 support TRIM in hardware RAID 1? The answers I ...
sysjas's user avatar
  • 203
3 votes
4 answers
1k views

Suitability of DL380p-Gen8 + D2700 for SQL 2012 Standard Edition

A question for those who know about HP server performance and SQL... I am trying to spec a suitable server that has the following requirements: Run SQL 2012 Standard Edition (I cannot get approval ...
ChrisNZ's user avatar
  • 606
4 votes
3 answers
5k views

Measuring SSD wear out behind LSI MegaRAID controller?

I'm trying to find out how to measure the total bytes written (or a percentage of maximum expected, either is fine) for a few RAID arrays behind LSI controllers. The controllers are all LSI MegaRAID ...
jski's user avatar
  • 921
3 votes
1 answer
7k 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 ...
Sverre's user avatar
  • 763
2 votes
4 answers
1k views

Is there a way to read SMART attributes for drives in a SAN?

We are running an SSD array in a SAN, and the performance is great. But we need to monitor the write endurance SMART attributes so that we can determine when the drives are close to wearing out. We ...
Josh Yeager's user avatar
2 votes
2 answers
2k views

RAID 0 InnoDB speed - Comparing 8 x 7,200 RPM drives or 4 x 15,000 RPM drives

I am planning to set up a RAID array for scratch space use in a computational server (16 cores, 128 GB RAM). The users will routinely be creating large (500GB) MySQL InnoDB databases and storing these ...
billyshaneguy's user avatar
5 votes
1 answer
2k views

HP Proliant G6 reporting failed SSD drive - alternative strategies for monitoring?

I would like to get your feedback about a controversial situation I found myself in some days ago. I was tasked to use a HP Proliant G6 for development purposes with 2 new (< 2 months, never used ...
Deim0s's user avatar
  • 182
5 votes
2 answers
1k views

ZFS L2ARC for Mirror Pool

I was reading up on L2ARC for my ZFS. I currently have two Pools, One for Data, and the other for Linux Containers and Virtual Machines. I would like some help with L2ARC, I know how to add it but was ...
Jonny's user avatar
  • 53
1 vote
1 answer
5k views

Using Dell PERC H330 RAID controller with not-dell-certified SSDs

We think about replacing our Dell PowerEdge T100 (2009) with a Dell PowerEdge T330 for our small business. Up to 15 clients are using the MSSql Server, some fileshares and printers. The database size ...
maxschaf's user avatar
4 votes
1 answer
867 views

Is it worse to go with Samsung 960 EVO instead of Pro version in terms of price to perforamce measure? [closed]

We are about to deploy shared storage researching for ultra-fast storage to implement Microsoft SQL Server Failover Cluster (FCI). So far the project goes, we would to start with 500K IOPS and have ...
Joshua Turnwell's user avatar
0 votes
3 answers
902 views

Server periodically freezing - Help Stabilizing [closed]

We run an asp.net/sql server data collection website with a hand full of clients dumping data in and running reports. We moved to a new server (specs below) and have had issues with it freezing and ...
JonDog's user avatar
  • 103
-2 votes
3 answers
277 views

SSDs for MS SQL Server 2008: slc or mlc: what is expected life for mlc? [closed]

Until recently, Dell et all would only provide slc drives for servers. It appears the winds have shifted and now the cheaper mlc drives are avail for servers. In a sql environment, will mlc give ...
Jonesome Reinstate Monica's user avatar