BlackF1re's picture

LUN config for Promise Ex30 (non Apple)

Good Evening

I'm about to configure a Promise Ex30 (non apple) for an Apple Xsan Environment (Yes, Promise already confirmed that works with the hardware i have, like a Qlogic 5800, Atto and LSI cards)

I was wondering about the LUN Configuration.

The system is a 24 bay, dual controller, HDD NL-SAS of 3 TB.

What configuration do you recommend for performance?
Workflow is for both HD Full HD ProRes, and 4k XAVC (So 30 - 40 MB/s for every layer)
But i could also manage a layer of SonyRAW 4K from an F55 in 3840x2160 50p, that means 500 MB/s

2 LUN of 11 disks Raid 5 + 1 dedicated spare?
or
4 LUN of 6 disks Raid 5 without spares?

I have a dedicated metadata array 4 Gbit, cause of the presence of multiple volumes

The ALUA should be enabled for better performance? (Clients will be 10.9 / 10.8.5)
What about the stripe size?

Thank you all for your time.

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webward's picture

P5 Backup XSAN to Windows Server (without using stornext)

I'm researching backup solutions for an XSAN that will soon be over 100TB, and had a couple of questions.

With P5, is it possible to backup an XSAN to a Windows server, without attaching the Windows Server to the XSAN using Stornext? Due to the size of the XSAN, it would also be nice if it were possible to do so using 10GbE (or similar). I want to maintain the ability to use XSAN features that aren't supported with Stornext clients, while being able to backup to our existing Windows infrastructure, and using something faster than GbE due to the large amount of data.

Not sure if it makes a difference, but the backup will be disk-to-disk.

Thanks in advance for any advice along these lines.

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