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RAID 5 or RAID 10?
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Depends on what you mean by “very slow write speeds”. I have a RAID 5 array with only 8 drives that tops out at ~40MB/sec. That’s plenty of throughput for capturing video, and I doubt your machine can render anything out faster than that, so I don’t see how that wouldn’t be adequate for video work. Just don’t go cheap on the RAID card if you want RAID 5. Software RAID controllers will crawl using RAID 5, so definitely get a hardware controller. See https://www.3ware.com/3ware_home.htm
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[Brent Hilgenkamp] “Depends on what you mean by “very slow write speeds”. I have a RAID 5 array with only 8 drives that tops out at ~40MB/sec”
How is that connected to your system and what system are you running off of? We’ve been running 8 drive arrays for almost 3 years running 500MB/s and faster in RAID 5. They’re connected to the systems via SAS connections to an ATTO R380 card. They both run on older model Mac Pros.
Walter Biscardi, Jr.
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Wow…. Wish I could get that performance out of mine. I’m using 8 SATA drives with a 3ware 9500S-8 PCI-X card on an old Dell server for a temporary storage location before going to LTO tape.
500MB/sec still blows the doors of my Xserve RAID connected via Fibre. Do you have a hot spare or are you using all 8 drives at a time?
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[Brent Hilgenkamp] “500MB/sec still blows the doors of my Xserve RAID connected via Fibre. Do you have a hot spare or are you using all 8 drives at a time?”
Hot spare so we’re using either 6 or 7 drives at a time. The newer units are faster as they have improved harddrives inside. Our units use 2 or 3 year old Hitatchis.
Walter Biscardi, Jr.
Editor, Colorist, Director, Writer, Consultant, Author.
Credits include multiple Emmy, Telly, Aurora and Peabody Awards.
Owner, Biscardi Creative Media featuring HD Post
Biscardi Creative MediaCreative Cow Forum Host:
Apple Final Cut Pro, Apple Motion, Apple Color, AJA Kona, Business & Marketing, Maxx Digital.
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