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Openfiler as a building block for XSan

 
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robert!g
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Joined: 18 Jan 2007
Posts: 14

PostPosted: Wed Jun 13, 2012 11:03 am    Post subject: Openfiler as a building block for XSan Reply with quote

I have started to compile a complete building plan on how to put together an open filer system that can be used well with XSan. I have built half a dozen of them so far, so slowly know how to do it. Check it out! I hope some of you guys might find this helpful.

http://xsan-openfiler.tumblr.com/
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bs3375
Could work for Apple
Could work for Apple


Joined: 02 Jul 2008
Posts: 47

PostPosted: Sat Jun 30, 2012 11:44 am    Post subject: Reply with quote

I read your recent update about using SSD drives for metadata. Just thought you should know/add that if the SSDs aren't enterprise class they'll burn up in a couple of weeks because the mdcs read the arbitration block like 2 times a second.
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ogminlo
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Joined: 29 May 2008
Posts: 149

PostPosted: Sat Jun 30, 2012 2:56 pm    Post subject: Reply with quote

NAND reads do not cause wear, only writes and garbage collection eat cells. eMLC or SLC SSDs are still a much safer bet for MDJ LUNs though.
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robert!g
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Joined: 18 Jan 2007
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PostPosted: Sat Jun 30, 2012 3:52 pm    Post subject: Reply with quote

I'm glad that somebody has actually looked at what i wrote Very Happy.

So far my SSDs have been in action for around 4 months without problems. Those are standard SSDs. But my SAN volumes are mostly used for archiving so activity is rather low.

Thanks anyway for the feedback, I'll keep it in mind.
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bs3375
Could work for Apple
Could work for Apple


Joined: 02 Jul 2008
Posts: 47

PostPosted: Sun Jul 15, 2012 8:52 am    Post subject: Reply with quote

bs3375 wrote:
…because the mdcs read the arbitration block like 2 times a second.


I miswrote. Should have written "mdcs read/write the arbitration block like 2 times a second". Perils of posting on the iPhone.
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