1. Most people here would not suggest RAID 0 OS/Application drive.
2. You have moderately good read speeds so that should not be a problem.
3. Have you tuned this system? Things like turning off unused applications and processes, turned off disk compression, etc.
4. I do not know but there could be a latency issue with USB 3, run a project completely on your internal drive array and see if there is any difference.
Message was edited by: Bill Gehrke
Most USB3 raid units do not have a read speed high enough for DPX files. DPX 1080 are roughly 279MB/s. I know the 5 bay Raid 5 USB3 units averaged around 180MB/s with a random access time of 15 to 17 ms. That latency is significantly higher than the internal Sata ports which average 80 to 10ms. I dont expect the 8 bay USb3 raid units to have much better performance. MXF files have a far lower data rate than DPX so if the DSLR H264 files are ok I would not worry to much about the MXF files.
I should be more careful in my reading
"Fun Facts: I tested my OS drives, cache & media,and I was getting 290-301mb/sec READ SPEEDS"
Lou: I hope that your 290-301 mb/secc is really Megbytes per second (MB/sec) and not megabits per second.
And I think Eric meant 8 to 10 ms for internal hard drive latencies.
Just for future reference here is what two Samsung 840 PRo SSD's can do in RAID 0.when connected to SATA III ports.
Yes I meant 8 to 10 ms for the drives on the internal sata controller. Sorry about that.
Crap ! Did I make a mistake on the numbers? I used HD tune pro as well and it said (on first test run) AVG 301 MB/s acsess time was very high, (13 ? ) I can't remember.
also, so the test scores above are 2 solid state drives in RAID 0 ??
My problem is I have to edit a documentary which contains 6 TBs of clips!
How am I going to put all of that DATA on a high performance drive??
I would have to take out a 2nd mortgage on my house to buy a 6 TB solid state RAID.
Can you guys PLEASE give me some HDD options to handle this project?
What would you do in my case??
(I have around $800.00 bucks) to purchase whatever items I need to edit this film.
I already spent $1,600.00 to build the pc, and now I will be at my max at $2,400.00 when I buy the storage space.
Thank so much,
Can you not break the DPX media up in your workflow to smaller amounts? If not then the cheapest way to get this done would be a 3 drive raid 0 and make sure your project files are backed up daily. I would even look at possible Cloud backup just for a folder where your Project files are located. Project files are not that big so Cloud upload should not take that long. You have the external archive for media with the USb3 storage. If you go with 3 TB drives then you should havethe speed to get this done. 3 Drive raid 0 is not recommended ideally but some times budget outweighs the risk and you just have to micro manage your archives more.
So, just to be clear, I should get 3 ( 3TB 7200 rpm) drives = 9TB RAID 0 ??
Seagate Barracuda 7200.14 ST3000DM001
3TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5"
Internal Hard Drive Bare Drive
Ok, $120. X 3 = $340.00
The company is allowing me $800.00 for drives
so I still have over 400 bucks to spend.
So is this the best performance option I have?
Thanks so much,
That is the best option with the budget you have. A 4 Drive Raid 10 on the onboard would not likely get you the speed you need for DPX 1080 files. A 4 drive raid 5 would require a SAS controller which would exceed your budget. The 3 drive raid 0 would be the only way to get this done with the budget you list.
OK, then a 3 RAID 0 it is. Thank you for all your help.
"Have you tuned this system? Things like turning off unused applications and processes, turned off disk compression, etc"
No, I did not,.....I never heard of that ?Is that a windows feature?
I do not have the data on a three drive RAID 0 but here is a two drive RAID 0 with good Seagate ST2000DM001 drives. I have to say "good" because there have been two varieties available, some with two platters and some with three platters. The preferable are with two platters and my experience shows these drive to have an "E" in the third character of the Serial Number like Z1E1ME4V They are slightly faster than the three platter versions. Here is the HD Tune Read of the two better ST2000DM001 drives in RAID 0 on my system.
The best connection is to have all three on a RAIDable Intel SATA III connection but I am doubtfull if this can be accomplished on many motherboards, maybe Eric can comment and enlighten us.
Message was edited by: Bill Gehrke
What motherboard do you have? I guess from the info above it is a socket 2011.
6Gbs only effects SSD drives stand alone or raided and maybe very large raid arrays. A 3 drive raid 0 will not be effected by that.
Ok, the motherboard is Gigabyte X79-UP4
Also you said " 6Gbs only effects SSD drives stand alone or raided and maybe very large raid arrays. A 3 drive raid 0 will not be effected by that."
I'm confused. so are you saying that the sata 3g or 6g ports won't make any difference in speed with a 3 raid drive?
If true, then i'm guessing that the 7200 rpm drives aren't fast enough to even reach that 6g speed anyway.??
Is that what you mean?
Yes, what Eric stated is that the fastest platter-based (mechanically spinning) hard drives do not utilize anywhere near the full sequential (sustainable) performance potential of even SATA 3.0 Gbps, let alone SATA 6.0 Gbps. The advertised burst transfer speeds of those interfaces are for one channel, not total across all channels. And each SATA channel operates independently of one another as far as transfers are concerned. And when AID 0'd together, the maximum burst transfer rate of AID 0'd SATA 3.0 Gbps drives or drives connected to SATA 3.0 Gbps ports would be roughly 3.0 Gbps multiplied by the number of AID 0'd disks connected to the same controller, which would be just under 9.0 Gbps (theoretical) for a three-disk AID 0 array.