Let's just say I've had... not so great experiences with Marvell SATA/SAS controllers. I switched to an LSI SAS2008-based card for good reason. Marvell works... most of the time... if nothing goes wrong. Usually.
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Replying to @marcan42
yyyyeah I'm probably going to return the SAS controller I bought from newegg without even unpacking it and get an LSI one instead
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Replying to @whitequark
If you're going the LSI route, try to get a basic HBA with IT/IR firmware (or that you know for a fact can be crossflashed from iMR mode). Those usually work best. Avoid Dell PERC. IBM M1015 is usually fine (& cheap and available) but you'll want to crossflash it.
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Replying to @marcan42 @whitequark
TL;DR LSI sold the same chip with two completely different firmwares, PCI IDs, programming interfaces and drivers - one for full-blown hardware managed RAID (iMR) and one for a simple HBA (IT), optionally with basic RAID0/1 support (IR). You can switch with some effort.
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Replying to @marcan42
oh! yeah, I've already learned to avoid hardware RAID like Superfund sites.
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Replying to @whitequark
Here's my little horror story with a less-than-popular LSI card. These things work great once you get the right firmware on them, but getting there can be tricky depending on the model.https://marcan.st/2016/05/crossflashing-the-fujitsu-d2607/ …
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Replying to @marcan42
the... the card has a PowerPC CPU on it? (and MRAM? I didn't even know this is deployed in production) has anyone run Linux on it yet
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Replying to @whitequark @marcan42
Some "server-grade" Ethernet cards have an embedded CPU like that too (I don't remember if it was Intel, Broadcom, or Mellanox)
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Replying to @rqou_ @whitequark
I mean, you can run Linux on a HDD controller, so... Yeah, why not. http://spritesmods.com/?art=hddhack&page=1 …
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yeah, I know that one, but a SAS controller seems more fun. you know why? you could hack it into a 24 Gbps SASternet card if you could control transceivers
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Replying to @whitequark @rqou_
That... Actually sounds very plausible. I think SAS is symmetric enough it might just work.
7:30 PM - 26 Mar 2018
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