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Automated Storage Tiering

Software-based VM-centric and flash-friendly VM storage + free version, StarWind VSAN "Ready Nodes"

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Automated Storage Tiering

Postby andrea.caldarone » Fri Mar 03, 2017 1:59 pm

Hello,

I'm in charge of evaluating StarWind VSAN for my company. Automated Storage Tiering (like FAST of EMC2) is one prerequisites.
I've not understood (my fault, I'm newbie on StarWind) if StarWind VSAN does automated tiering (not L2 cache which is different).
If StarWind has not tiering I could leverage on WIndows Storage Spaces but, again, I ask you if this configuration is supported/reccomended.

Thank you.
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Re: Automated Storage Tiering

Postby Oles (staff) » Thu Mar 09, 2017 2:11 pm

As we are Windows native, thus we do recommend and support using Windows Storage Spaces to configure the tiering and then put our flat image on top of it :)
We also are developing and testing our own StarWind tearing now, so should have that one released some time soon.
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Re: Automated Storage Tiering

Postby oscaru » Tue Mar 14, 2017 7:03 pm

Hello Oles,

I am in the same situation as andrea.caldarone . Currently evaluating Starwind Vsan.

Why flat image on top of Storage Spaces? Why not LSFS?

I've asked the same question on another thread but haven't received your comments yet.
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Re: Automated Storage Tiering

Postby Michael (staff) » Thu Mar 16, 2017 10:00 am

Hello!
LSFS was designed for specific environments with lots of random writes and it works best on big slow spindle-based parity RAID arrays.
Assuming that tiered Storage Spaces is fast enough, I believe image file is the best choice for it.
Here’s a blog post from Anton where he goes into details about it:
https://slog.starwindsoftware.com/a-short-overview-of-what-we-call-lsfs/
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Re: Automated Storage Tiering

Postby oscaru » Fri Mar 17, 2017 1:06 am

Thanks for the reply

Great read, and that was the response I was looking.

I'll use flat image then over this tiered storage space.
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Re: Automated Storage Tiering

Postby Michael (staff) » Fri Mar 17, 2017 4:58 pm

We are always happy to help you :D
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