Cannot replace broken hard drive with LSI HBA

[Karli Sjöberg]

ons 2015-09-30 klockan 12:39 +0100 skrev Tom Evans via freebsd-fs:
> On Tue, Sep 29, 2015 at 7:25 PM, Freddie Cash <fjwcash at gmail.com> wrote:
> > On Tue, Sep 29, 2015 at 11:04 AM, Michael Fuckner <michael at fuckner.net>
> > wrote:
> >
> >> On 9/29/2015 3:51 PM, InterNetX - Juergen Gotteswinter wrote:
> >>
> >>>  From my Experience using SATA Disks on SAS Controllers, no matter if
> >>> theres an Expander between or not or mixed, those Setups keep on beeing
> >>> flakey / unreliable. I might work under certain conditions, but its
> >>> nothing you can bet on.
> >>>
> >>> Garret Damore (Illumos Project) describes the problem more detailed here
> >>>
> >>> http://garrett.damore.org/2010/08/why-sas-sata-is-not-such-great-idea.html
> >>>
> >>>
> >> come on, the article is 5 years old, some things changed since then!
> >>
> >> - MUX Boards are unreliable and expensive- long time since I last saw
> >> those boards
> >> - SAS Disks are not just 10/15k high performance Disks anymore, most
> >> Nearline Disks are available with native SAS interface as well
> >> - if you pick the right disk there is no trouble using SATA Disks on SAS
> >> Expanders or SAS Controllers (they should have R/V sensors, optimized
> >> FW...).
> >> - if you use desktop drives in a shelf with lets say 24 slots you should
> >> not expect it to work ;-)
> >>
> >
> > Why not?  ;)
> >
> > We use desktop-class drives in our backups storage servers without any
> > issues.  Even the monster boxes with 90 drives in them (2 JBODs of 45
> > drives each) run without issues using desktop-class drives.
> >
> > We're using a mix of WD Black (1, 2, 4 TB), Toshiba (2 TB), and Seagate (1,
> > 2 TB).
> >
> > 2 systems using 24 drive bays.  2 systems using 90 drive bays.  Plugged
> > into SuperMicro SAS expanders and LSI 9211-8i or 9211-8e (I think that's
> > the model number) controllers.  All SAS2008 chipsets using mps(4) drivers.
> >
> 
> Just a me too. This is just for my own personal storage (so everything
> is second hand from ebay), but I use LSI SAS2008 [1], which is mps(4),
> with a couple of Rackable SE3016 16 bay enclosures, using around 20 of
> the cheapest SATA drives[2] I could afford at the time. I've never had
> any problems with it, my party trick[3] is to pull and swap drive
> locations, it does a full scrub every other weekend, and I've replaced
> several drives that have died and resilvered with no complications.
> 
> Of course, I don't put that much stress on the hardware, so I'm aware
> that problems may not be occurring for me because of that. Perhaps
> I've just been lucky so far, but they are easily the best $300 I've
> spent on ebay.
> 
> No SSDs however, they are all directly attached to motherboard SATA controllers.
> 
> Cheers
> 
> Tom
> 
> [1] With firmware 15, in IT mode - I know, I should update..
> [2] Currently a mix of "SAMSUNG HD154UI 1118", "TOSHIBA DT01ABA3 ABB0"
> and "WDC WD30EZRX-00M 0A80". Yep, super-cheap consumer desktop hard
> drives.
> [3] Yes, they are quite dull parties.
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Which version FreeBSD is it running?

/K