Scalar i40 tapechanger LUN appearing as a second tape drive

[Kenneth D. Merry]

On Tue, Jun 05, 2018 at 19:28:54 +0200, Dirk-Willem van Gulik wrote:
> 
> > On 16 May 2018, at 19:30, Dirk-Willem van Gulik <dirkx at webweaving.org> wrote:
> > 
> > On 16 May 2018, at 18:53, Kenneth D. Merry <ken at FreeBSD.ORG> wrote:
> > 
> >>> Ok. good advice. Will do exactly that.
> >> 
> >> The best controllers to use are LSI (now Broadcom) 6Gb or 12Gb SAS
> >> controllers.  They have TLR support, which helps insure data integrity with
> >> tape drives.
> > 
> > Ok - we surely have a few  SAS9201 and LSIA SAS9202???s around.
> 
> Ok - So the summary is that 1) indeed the LSI controller see the Scalar i40 changer with no issue (and gives us a nice speed update). And that 2) that there may be some regression in the cam/scsi stack -- restoring a FreeBSD-8-RELEASE makes the P222 see the changer again.
> 

I'm glad things work with the LSI controller!

That is strange that FreeBSD 8 works with the ciss(4) controller and 11.1
doesn't.  I would guess that something changed in the ciss(4) driver, but I 
don't see anything really obvious in the logs.

> Next up - finding out what is wrong with LEOM (and amanda).

You're having problems with Amanda?

Ken
-- 
Kenneth Merry
ken at FreeBSD.ORG