Cannot replace broken hard drive with LSI HBA

[InterNetX - Juergen Gotteswinter]

Am 29.09.2015 um 20:25 schrieb Freddie Cash:
> On Tue, Sep 29, 2015 at 11:04 AM, Michael Fuckner <michael at fuckner.net
> <mailto: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.
> 
> We're not looking for uber-performance and millions of IOps from these
> systems, as the gigabit NIC is the bottleneck (rsync and zfs send both
> saturate that link, but all operations still complete within the
> allotted 8 hours window).
> 
> We replace maybe 6-8 drives per year across all 4 systems; a little more
> than that this year due to overheating in one location, but that's been
> fixed.
> 
> When a 2 TB desktop-class harddrive is $ 80 CDN in bulk, and we're only
> replacing 8 drives per year (under warranty, of course), it just doesn't
> make sense to spend the extra money on server-class, RAID-aware,
> nearline, or SAS drives.  :)
> 
> ​If you ​are building a storage server that requires millions of IOps
> with multiple 10 Gbps connections, then sure, desktop-class drives won't
> cut it.  But for everything else, they're fine.
> 
> -- 
> Freddie Cash
> fjwcash at gmail.com <mailto:fjwcash at gmail.com>

hello backplaze?

:)

sounds legit to me, since you dont seem to mix sata/sas