bob4432
Lifer
- Sep 6, 2003
- 11,726
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Originally posted by: DaFinn
Originally posted by: Matthias99
Originally posted by: VTrider
Originally posted by: Accord99
Get two HDs (but don't RAID them), so you can have one drive reading and the other writing. Should greatly improve performance for anytime you have streaming operations with a large video file.
Are you saying this would move large video files faster than a RAID 0 array?
Depends on what you're doing and what the array is attached to.
RAID0 (I'm assuming a 2-disk RAID0) doubles the STR of the disks involved. If you were reading from and writing to the same RAID0 (since your system sees it like a single hard drive), you'd run into the same problem as with two drives on the same channel -- the disks can't read and write simultaneously, so it greatly drops your throughput (and it also puts a lot of extra strain on the read/write heads, as they have to seek back and forth constantly while this is going on). In this case, you might actually be better off with two separate drives.
However, loading a file from the RAID0, or writing a file to the RAID0 (if the source was another drive in the system) would be faster. Fastest of all would be to have two RAID0s, and read from one and write to the other. But you would need one to be attached to the chipset directly, or else the limited PCI bus bandwidth would start to constrain you (or you would need both to be on PCI-X or PCI Express buses, which have more bandwidth to begin with).
2 disks is better than 1 OR raid 0 array. And SCSI is better then anything previously mentioned.
In my personal videoediting machine i have:
P4 3,4Ghz
1Gb RAM
Adaptec SCSI card + 10Krpm scsi drive for os and applications
2x 120Gb 7200rpm/8Mb cache SATA drives in raid 1 for storage
DVD+-RW
Terratec GF FX5900 Ultra VIVO 256Mb
in additon I have external 200Gb drive for extra storage.
I find the machine to be more responsive under heavy load w. SCSI disk!
scis, scsi, scsi, scsi