ServRAID 5i and DLT

[Scott Long]

Alexandre Vasconcelos wrote:
> Hello All,
> 
> I've searched for this on google and list archives without success..
> I have on IBM xSeries 235, ServRAID 5i adapter, 3 disks on channel 0 and 
> a Benchmark DLT tape on channel 1. The adapter bios shows one logical 
> drive and one "other" (probably the tape). I've installed FreeBSD 5.3, 
> the GENERIC kernel can see this adapter (ips), dmesg | grep ips shows:
> 
> [root at barracuda kernel]# dmesg | grep ips
> ips0: <IBM ServeRAID Adapter> mem 0xf4000000-0xf7ffffff irq 22 at device 
> 3.0 on pci5
> ips0: [GIANT-LOCKED]
> ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
> ips0: adapter type: ServeRAID 5i II (sarasota)
> ips0: logical drives: 1
> ips0: Logical Drive 0: RAID5 sectors: 286744576, state OK
> ipsd0: <Logical Drive> on ips0
> ipsd0: Logical Drive  (140012MB)
> Mounting root from ufs:/dev/ipsd0s1a
> 
> But it don't recognize any tapes, there's no "nsa?" output on dmesg, but 
> a bios utility from ibm (pc doctor) shows Benchmark on the second 
> channel. I've made some tests with Red Hat AS3 and it shows Benchmark 
> while booting.. IBM identifies this unit as 40/80 GB HH DLTVS Internal 
> Tape Drive.
> 
> The adapter utility don't show any special configuration.. I have 
> another server with one HP DLT unit that is recognized as BENCHMARK on 
> FreeBSD 4.10, so I don't think this is a tape type problem.. does 
> FreeBSD support this tape on this adapter? I don't want to run Linux on 
> this server :(
> 
> Thanks in advance,
> Alexandre Vasconcelos

The ips driver has no mechanism for exporting SCSI devices like tape
drives.  It's probably possible to examine something like the linux
driver and figure out how to make it work, but it likely requires
something in the range of 400-600 lines of code.

Scott