What util are you using to measure iops?Originally Posted by Splash
What util are you using to measure iops?Originally Posted by Splash
When drives quote iops performance it's for random access. You're using 0% random i.e. you're measuring sequential performance, which spinning rust isn't too bad at.
Hexus review using iometer to measure random IOPS: http://hexus.net/tech/reviews/storag...-480gb/?page=6
The high end drives get ~ 70k, mid-range vary from 35k - 50k, entry level Crucial m4/OCZ Octane drives get ~ 10k, 1TB Samsung HD gets 162.
this would be perfect for my laptop setup as currently 2tb drives are the biggest that will fit, unless I did some crazy jiggery pokery with one of the 4tb 2.5" drives to get it to fit
Iometer (4KiB 100% Read; 100% Random)Originally Posted by scaryjim
Samsung 850 Pro SSD (SATA 6Gb) 57K IOPS (224MBPS)
3 x 600GB WD Black Caviar HDD (RAID 0) 703 IOPS (2.88MBPS)
Seagate 512GB HDD does 276 IOPS (1.13MBPS)
That makes a bit of a difference, doesn't it? lol. Thanks, scaryjim.
Would the fact this is already a pair of drives in an array cause problems is you want to set up a few of these in RAID?
OOOOH some people got it wrong.... The fastest enterprise category single rust drive (HDD) spinning at 15,000 RPM cannot manage 1,000 IOPS (1K IOPS) either read or right. A Samsung 850 SSD can manage 100,000 IOPS (10K IOPS), an INTEL 750 series SSD NVe can do 440,000 IOPS read and 290,000 IOPS write.
"In a perfect world... spammers would get caught, go to jail, and share a cell with many men who have enlarged their penises, taken Viagra and are looking for a new relationship."
While overkill for me, looking forward to the prices of smaller sized SSDs dropping or possibly even this causing spinners to drop. Could do with another couple tb's of storage and a backup drive
Main PC: Asus Rampage IV Extreme / 3960X@4.5GHz / Antec H1200 Pro / 32GB DDR3-1866 Quad Channel / Sapphire Fury X / Areca 1680 / 850W EVGA SuperNOVA Gold 2 / Corsair 600T / 2x Dell 3007 / 4 x 250GB SSD + 2 x 80GB SSD / 4 x 1TB HDD (RAID 10) / Windows 10 Pro, Yosemite & Ubuntu
HTPC: AsRock Z77 Pro 4 / 3770K@4.2GHz / 24GB / GTX 1080 / SST-LC20 / Antec TP-550 / Hisense 65k5510 4K TV / HTC Vive / 2 x 240GB SSD + 12TB HDD Space / Race Seat / Logitech G29 / Win 10 Pro
HTPC2: Asus AM1I-A / 5150 / 4GB / Corsair Force 3 240GB / Silverstone SST-ML05B + ST30SF / Samsung UE60H6200 TV / Windows 10 Pro
Spare/Loaner: Gigabyte EX58-UD5 / i950 / 12GB / HD7870 / Corsair 300R / Silverpower 700W modular
NAS 1: HP N40L / 12GB ECC RAM / 2 x 3TB Arrays || NAS 2: Dell PowerEdge T110 II / 24GB ECC RAM / 2 x 3TB Hybrid arrays || Network:Buffalo WZR-1166DHP w/DD-WRT + HP ProCurve 1800-24G
Laptop: Dell Precision 5510 Printer: HP CP1515n || Phone: Huawei P30 || Other: Samsung Galaxy Tab 4 Pro 10.1 CM14 / Playstation 4 + G29 + 2TB Hybrid drive
Jonj1611 (14-01-2016)
It's something a lot of people find hard to get their heads round, and one reason that logarithmic scales are useful. Going from a HDD to one of these would only be a ~ 9k IOPS increase, whereas getting a top end SSD would be another 90k IOPS again.
But when you look at the orders of magnitude, you're talking about a ~500x increase, followed by a ~10x increase. It makes sense that making that first 500x faster would be much more noticeable than the extra 10x: i.e. getting a slow SSD v a HDD makes a far bigger difference than getting a fast SSD vs a slow SSD.
This is a great buy for my two data drives which are currently to big and relatively slow WD mechanical drives. This year could finally be the death of the HDD. Good ridance, too.
BadHead
---
OS: Windows XP Professional SP2
PSU: Tagan 2 Force TG530-U22 530W
MoBo: Abit AN8 Fatal1ty
CPU: AMD64x2 4600+
RAM: 2048Mb 400Ghz Patriot XBLK (4x512Mb)
GPU: eVGA 7600GT KO
SOUND: Creative Audigy X-Fi Fatal1ty FPS
Disks: 3X 320Gb + 1X 500Gb
I need one please "arrange"a competition.
I thought all these SSD iop figures were proven to be bogus. Burst yes but are not sustainable as the drives 'cache' writes and then do garbage collection/etc later. A bit like a shingled HD.
What storage you choose should be based on requirements rather than pure numbers. Especially when spinning disks are much easier to provision for in terms of IO.
So if this uses onboard raid, then theres no TRIM support?
2700X,X470 Taichi,Silverstone Fortress 2,16GB RAM, SSDx3, HDDx4,GTX970 G1 Gaming,24"x2(1xIPS,1xTFT),W10x64Pro
HTPC: AthlonX2 5050e,M4A78-EM,AntecFusion,8GB RAM,ATi3200,32"Sony TV,W7x64Pre
There are currently 1 users browsing this thread. (0 members and 1 guests)