On Sunday, 8 November 1998 at 23:17:36 -0700, Justin T. Gibbs wrote:
On Sunday, 8 November 1998 at 0:17:36 -0700, Justin T. Gibbs wrote:
RAID 3 is still used, and is still useful. All of Pluto's products (see
http://www.plutotech.com) use RAID 3. It works quite well for video data.
I suppose it gives you good throughput. But how do you handle the I/O
load? Are you effectively delivering a single video stream?
RAID 3 is ideal when your data requests are always a multiple of the strip
I'm not sure we're talking about the same thing. In my book, RAID-3
is a RAID-4 with a stripe size of 1 byte. How do you define it?
RAID-3 confines parity to 1 member of the array. The size of the stripe
is not a part of the specification. In the case of Pluto products, we
usually use a stripe size of 1MB which implies a per-unit access of
1MB/N-1 (N being number of members in the RAID group).
This looks like RAID-4 to me. Where do you see the difference?
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