SAS RAID Controller help

[timtool001]

I have dell 7910 workstation with with SAS RAID Controller. I am using a resolve for color grading but my major bottle neck is my hard drives i run a speed test and i am getting WRITE 246 READ 250 in raid 0 software raid under windows 10. I am manly working with 2.5k raw files but would like to prepare it for 4k raw cinema dmg. Since i am on a budget what would be my best option for fast raid. I am thinking purchasing 4 sas drives of ebay for 80 dollars each like Dell COMPATIBLE 3TB 6G 7.2K 3.5" SAS DPTW9 0DPTW9 HDD Hard Drive but i am not sure if i am baying right drives and can i buy any sas drives? Or just purchase raid card with external box for HD but again it gets expensive fast my budget is 500 Other option is PCIe x16 Gen3 card that supports up to four M.2 NVMe but that gets expensive to.

4k CinemaDNG RAW - requires 272 MB/s


Any help is appreciated thanks guys

My system
2x Xeon 2.4g GHZ max turbo 3.2
Memory 32 Gb DDR4
Decklink Mini monitor
GTX 770 for resolve
Quadro 5000 for 2 monitors
2 WD black HD in software raid 0 each does 64mb DISK SPEED TEST WRITE 246 READ 250
450gb SSD for os
Power Suply 1300W PSU
4 x PCI -e3x16 slots
SAS raid controller

Link to SAS drives Here

 

[popatim]

We're going to need to know which Sas controller you have to be able to advise you better. Thank you.

 

[timtool001]

We're going to need to know which Sas controller you have to be able to advise you better. Thank you.

Hi there thanks for help and time this si what i could find i hope it helps

Integrated: LSI SAS 3008 12Gb/s SAS (6Gb/s SATA) controller supports software RAID 0, 1, 10 with up to 8 hard drives. 2 integrated Intel
controller (6Gb/s) SATA ports for optical drives.
Optional: LSI MegaRAID® SAS 9341-8i 12Gb/s SAS (6Gb/s SATA) PCIe controller supports software RAID 0,1,5,10.
LSI MegaRAID® SAS 9361-8i 12Gb/s SAS (6Gb/s SATA) ) PCIe controller (1GB cache with Flash module/Super Cap backup) supports
hardware RAID 0,1,5,10

Storage Options Support for up to (4) M.2 PCIe SSDs and up to (4) 3.5” SATA or (8) 2.5” SATA/SAS drives. Optional PCIe controller required for RAID 5 support.

M.2 PCIe SSD (NVMe)
Up to (4) 1TB drives on
Dell Precision Ultra-Speed
Drive Quad.
PCIe SSD HH/HL card Up
to (2) Intel 1.2TB PCIe SSD
NVMe drives

2.5” SATA SSD
Up to (8) 1TB
drives
2.5” SAS SSD
Up to (8) 400GB
drives

2.5” SATA 7200
RPM
Up to (8) 512GB
7200 RPM

3.5” SATA
Up to (4) 4TB
5400 RPM
2.5” SAS 10K RPM
12Gb/s
Up to (8) 1.8TB
2.5” SAS 15K RPM
12Gb/s
Up to (8) 600GB

2.5” Self Encrypting
Drives
512GB 2.5” FIPS SED
(OPAL 2.0) SSD

 

[popatim]

Will the drives also be your long term storage for your projects? Ie- you need the space. Or will smaller drives also work as well?

The Cheapest option might be two more WD Blacks for a 4 drive raid-0. This is not a good setup for long term storage though since it has 4 times the chance of the raid array failing and losing all the data on it. If you can hold out, analysts are predicting that SSD's will become reasonably cheap sometime next year, possibly $80/TB cheap.

I don't do 4k yet but I already have been building for it too.

 

[timtool001]

Will the drives also be your long term storage for your projects? Ie- you need the space. Or will smaller drives also work as well?

The Cheapest option might be two more WD Blacks for a 4 drive raid-0. This is not a good setup for long term storage though since it has 4 times the chance of the raid array failing and losing all the data on it. If you can hold out, analysts are predicting that SSD's will become reasonably cheap sometime next year, possibly $80/TB cheap.

I don't do 4k yet but I already have been building for it too.

Hi drive are not for long term storage just working on a personal projects. I have 5tb external HD for back up and loosing drives is not that bigh of problem since they are affordable and i have back up.

I am thinking like you said just to get 2 more WD black HD basically more HD speed is faster? and does it matter if when it comes to 250MB cache or 64

Thanks again

 

[popatim]

Its always best to match what you already have when working with raids but the benefit of cache depends heavily on the workload. It's easily overwhelmed and then speeds drop to what the spindles can do. I

 

[FireWire2]

I have dell 7910 workstation with with SAS RAID Controller. I am using a resolve for color grading but my major bottle neck is my hard drives i run a speed test and i am getting WRITE 246 READ 250 in raid 0 software raid under windows 10. I am manly working with 2.5k raw files but would like to prepare it for 4k raw cinema dmg. Since i am on a budget what would be my best option for fast raid. I am thinking purchasing 4 sas drives of ebay for 80 dollars each like Dell COMPATIBLE 3TB 6G 7.2K 3.5" SAS DPTW9 0DPTW9 HDD Hard Drive but i am not sure if i am baying right drives and can i buy any sas drives? Or just purchase raid card with external box for HD but again it gets expensive fast my budget is 500 Other option is PCIe x16 Gen3 card that supports up to four M.2 NVMe but that gets expensive to.

4k CinemaDNG RAW - requires 272 MB/s


Any help is appreciated thanks guys

My system
2x Xeon 2.4g GHZ max turbo 3.2
Memory 32 Gb DDR4
Decklink Mini monitor
GTX 770 for resolve
Quadro 5000 for 2 monitors
2 WD black HD in software raid 0 each does 64mb DISK SPEED TEST WRITE 246 READ 250
450gb SSD for os
Power Suply 1300W PSU
4 x PCI -e3x16 slots
SAS raid controller

Link to SAS drives Here

SAS controller works with SAS and SATA drives, each of the drive contribute about 100MB+, so multiply with the spindle you will get the speed that you need.
8x HDD ~ about 1000MB/s
4x HDD ~ about 500MB/s

In your case I would get 2x more WD Black. If your system still have SATA ports, may as well using those to create an software RAID0.
It does not make sense to use SAS raid controller to create RAID 0.

Note: RAID 0 is not a redundant volume, back up your data

 

[langmead]

This is probably too late, but I use 4 x 7200 rpm hard drives with on-board (X299) RAID 0 and I am editing 4k BM RAW. For editing on DR15 this is fine; however, it seems to me that the on-board RAID 0 substantially adds to CPU overheating challenges at 4k level. I can just manage a 2K render with an inward single fan water-cooled pump system plus 2 more inward and 2 outward fans, but with 4K, not a chance, even at Standard performance. Although I am replacing the single fan cooling system with a double fan system, I doubt it will be sufficient and really suspect the culprit is the on-board RAID controller causing the CPU (i9) to overheat, with the solution being a PCIe SAS card. Anyone know to what extent on-board RAID crowds CPU performance in comparison with a SAS card, or am I up the wrong tree and there is an alternate solution.

 

[FireWire2]

Onboard (X299) RAID 0 should not take much of CPU resource.
For the thermal issue, I think once you are on 4K, there is lot more heat generated in your system, those will add up.
Apple approached is pretty good, if possible everything is connected externally, this leads to quieter and easily manage your thermal issue, in turn, the computer system runs a lot more stable.
Think about external

 

[popatim]

Or like me with big fans blowing across my drives. LoL

 

[langmead]

I like the idea of external, especially because of the hot drives with their bit fans! There is certainly a lot heat in there, not helped by having an ambient room temperature of 30 deg C. Thanks.