Thread (4 messages) 4 messages, 4 authors, 2016-12-28

Re: SAS disk from RAID card (no RAID mode) problems

From: Thomas Fjellstrom <hidden>
Date: 2016-12-28 01:06:54

On Tuesday, December 27, 2016 12:09:52 PM MST Joe Landman wrote:
On 12/27/2016 11:57 AM, IW News wrote:
quoted
On 27/12/16 17:12, Thomas Fjellstrom wrote:
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On Tuesday, December 27, 2016 8:53:07 AM MST IW News wrote:
quoted
On 26/12/16 22:25, Thomas Fjellstrom wrote:
quoted
On Friday, December 23, 2016 9:01:40 AM MST IW News wrote:
quoted
Hello,
[...]
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If thats the mvsas driver, god help you. I had nothing but
troubles with
it
for a good year or two or possibly more and it was never fixed or
really
acknowledged, so I sold that card (a supermicro aoc-saslp-mv8) and
picked
up a IBM m1015 (LSI 9211-8i a-like) and haven't looked back.

Basically it would reset a lot, and lock up. AND I believe it
caused a lot
of silent corruption as well.
Hi,

So there is no support for the mvsas driver?

The controller is integrated in the motherboard. I could by a PCIe one
but, what's the deal them?

Thank you.

Iñigo.
I don't know that there isn't support, there has been commits to that
driver
pretty regularly even when i was having problems. I just found there
was no
support for my particular chipset. I hope you fare better than I did.
Contact
linux-scsi as was suggested, maybe they can help.
I already contacted. No answer.

Maybe there is no mvsas developer active there now.
mvsas support under Linux is terrible.   I know you probably don't want
to hear this, but get another card.   Someone recommended an LSI9211
card.  Past experience with those have been spotty.  They are cheap, but
I'd recommend a 9207-8i.  Costs a little more, but generally works very
well.

Again, if you are using an mvsas based card, you should expect problems
and data corruption.  If you use the 9207, it should work nicely.

The windows world has all sorts of workarounds for wonky cards/chipsets
in their drivers.  Generally, if the driver is not actively supported in
linux and up to date, you are likely going to have problems.  If others
are reporting problems (google "mvsas problems in linux" if you want to
see how long people have been having problems with the cards), stay far
away from it.
I had hoped things improved :( when I was having problems with my mvsas based 
card, there was someone making commits to the code from marvell and I got some 
kind of response once or twice, but stopped replying and problems were never 
fixed.

I however haven't had any real issues with my dirt cheap ($50-100) IBM M1015 
cards (I have three). A lot of people have had good results with them. 
Technically its a 9220, which is quite similar to a 9211, but has some slight 
differences.

-- 
Thomas Fjellstrom
thomas@fjellstrom.ca
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