This IS the Avid L2: Re: [Avid-L2] Unity Media Net all one allocation group or multiple allocation groups for offline 10:1 media?

Tuesday, May 27, 2014

Re: [Avid-L2] Unity Media Net all one allocation group or multiple allocation groups for offline 10:1 media?

Each MediaEngine or XT chassis is about 340 MB/s. Bandwidth increase linearly per chassis.

Typical offline edit client is at least 3 streams but that depends if you are FX and/or multicam heavy.

With 10:1, you need 3.1 MB/s per stream.

Note that writing to a mirrored workspace is considered DUAL stream (6.2 MB/s)

Separate allocation group is better if you don't need the bandwidth as drive failure and recovery would have much less impact. A failed drive or chassis in one group will not affect the data on the other allocation group.

Dom Q. Silverio

On Tue, May 27, 2014 at 5:01 PM, John Moore bigfish@pacbell.net [Avid-L2] <Avid-L2@yahoogroups.com> wrote:

We are gearing up for a new series and our Unity Media Net 5.x is configured in one Allocation Group. I seem to be getting conflicting suggestions. One tech engineer had said in the past it would have been better set up with multiple allocation groups but at the time it was too full to consider a reconfiguration. Now that we are starting a new series it would make sense to reconfigure it to more than one allocation group if that has a benifit for our offline 10 plus bays hitting it for 10:1 SD media.

I realize more spindles is better bandwidth but for offline is there an advantage to more than one allocation group in a day to day offline workflow?

John Moore
Barking Trout Productions
Studio City, CA
bigfish@pacbell.net