Why do you think you want 10k SAS drives?
I want to delegate part of the storage for data base iscsi disk over 10 Gbit ethernet so I need fast storage. Second part will be for documents and I thought about ST8000NM0085 but it has 12 Gbs interface so I afraid about H200
Maybe someone could recomend the biggest SAS disks for R510 & H200...
Can you recomend better controller?I know that the DELL R510 kind of ties you to the H200, but that is not the best SAS card if you want to get to 10Gb on the network.
Which constelation of disks do you recomend for 12 disks 3.5" FreeNAS storage for databases and documents. We need about 4 TB for databases, they are not demanding for performace. FreeNAS has 10 Gbit card with 2 ports, so we can use one of them for databases and second for documents.Database iSCSI and documents? There's no way you'll be able to push 10Gbps ethernet without SSD or hundreds of HDD's. Seek times will kill you.
If I were buying a SAS controller, I would buy one of these:Can you recomend better controller?
The HP H220 uses a newer LSI chipset that is more capable and runs on PCI-E 3.0 where the Dell H200 uses an older LSI chipset that has some limitations and only works at PCI-E 2.0 speed. They are different generations. With regard to what @jgreco said, you will not come close to 10Gb network speed on random IO using the limited number of mechanical disks that your server chassis can hold. To get the speed you are interested in having, you will need to use SSDs and SSDs will overwhelm the capacity of the H200.What is the difference between DELL H200 and HP H220?
Both are rated for 6Gb/s controller to disk, but the controller chips are not equal and that doesn't account for the interface between the controller and the system. There is no advantage in going to a 12Gb SAS controller such as the lsi 9300-8i due to the fact that the number of disks and type of disks will be your limiting factor with that controller. It doesn't matter how fast the controller is when you don't have enough disks to do the work.Both are 6 6Gb/s. Maybe I should buy lsi 9300-8i ?
Just because the interface is 12Gb/s does not mean the mechanical parts work faster. Did you look at the spec sheet on that drive?I thought about ST8000NM0085 but it has 12 Gbs interface so
Still limited by the random IOPS, 170 on read with a queue depth of 16, and that is terrible in comparison to an SSD.Maybe ST12000NM0027 is good idea?
What is the TOTAL storage you need, projected out for planned growth over the next five or six years?We need about 4 TB for databases,
It doesn't matter how many ports you have, the disks are the limitation.FreeNAS has 10 Gbit card with 2 ports
In Dell R510 they'll be both at PCI-e 2.0 speed. So there must be a difference in IOPS to justify the upgrade. And I suspect it's only relevant if the OP heeds your advice and buys SSDs for the storage array.The HP H220 uses a newer LSI chipset that is more capable and runs on PCI-E 3.0 where the Dell H200 uses an older LSI chipset that has some limitations and only works at PCI-E 2.0 speed. They are different generations.
Yes. The standard R510 3.5" tray does need an adapter to mount 2.5" drives. This would do the job for that:Also, my newbie question. Can you mount a 2.5" drive in Dell's 3.5" caddy? Or will OP need adapter brackets?
If the R510 only has PCI-E 2.0, that is unfortunate, but the H200 is still IOPS limited by comparison to the newer chipset.In Dell R510 they'll be both at PCI-e 2.0 speed. So there must be a difference in IOPS to justify the upgrade. And I suspect it's only relevant if the OP heeds your advice and buys SSDs for the storage array.
Thank you. Good to know if we need to put an SSD in our T710 one day..The standard R510 3.5" tray does need an adapter to mount 2.5" drives. This would do the job for that:
Just to give you an idea and to stop you chasing 12Gpbs SAS interface for good. On the PCI-e bus end a PCI-e 3.0 x8 card would give you 63Gbps. If all of your 12Gbps drives delivered 12Gbps transfer speed, totaling 144Gbps (they won't), the fastest controller in the world would still only pass the data at 63Gbps. It gets worse. That same PCI-e 3.0 x8 card when plugged in the Dell R510 PCI-e 2.0 slot will work, but only at PCI-e 2.0 speeds, giving you whopping 32Gbps speed on the bus. The good news is that it's still more than needed to feed 2x 10Gpbs network interfaces.Both are 6 6Gb/s. Maybe I should buy lsi 9300-8i ?
If performance is not that important, and you only need 4Tb storage, wouldn't pretty much any drives suit your needs? There no point trying to saturate 10Gbps link if your applications are not going to use it.We need about 4 TB for databases, they are not demanding for performace.
I suprised that I can buy professional SSD 1.6TB for about 250$ (unfortanetly disks are avaible in this price only in USA, I didn't find similar price i europe).
Those SSDs were probably decommissioned in favor of something larger and faster. It is amazing the things you can pickup on eBay.I suprised that I can buy professional SSD 1.6TB for about 250$ (unfortanetly disks are avaible in this price only in USA, I didn't find similar price i europe).
If I decided to buy mentioned SSD's H220 will be enough or will I need lsi 9300-8i?
It would still be un-balanced because the chipset in the Dell H200 card is less capable than the chipset in the HP H220. They are different generation chips and even though they would both be limited by the PCIe interface, the H200 is even slower than that. If you want to use two cards, it would give you more IOPS, but I would use matching cards.Would that work?
No SATA device will be fast enough to be an SLOG for all-flash vdevs. You'll need to devote a PCIe slot to an NVMe device like an Intel P3700 or Optane.What about the SLOG/ZIL and L2ARC? If I put 12 SSD 1.6TB, which disks do you recomend for SLOG/ZIL and L2ARC? R510 has two additional places for 2.5" which I can connect it over SATA...
If you were willing to spend for the mechanical drives you were suggesting, it should be no problem to spend for these SSDs:
https://www.ebay.com/itm/New-HP-Intel-DC-S3610-Series-1-6TB-2-5-inch-7mm-SATA-III-MLC-6-0Gb-s-SSD/113687480914