Is my LSI Logic RAID controller embedded or not?
This is more of a purely education-seeking question; no troubleshooting required.
I have been using lspci, dmidecode, and mpt-status to get hardware information on my Dell 1950 running Ubuntu 8.10. One thing that is sticking in my mind is difficulty in understanding the output, likely due to some fundamental missing piece in my hardware understanding.
I'm pretty sure my server is using an embedded SCSI RAID controller from info I got from Dell's site:
1 CR679 Assembly, Card, SAS6IR, Integrated, Sled
1 TX846 Assembly, Cable, Controller SAS, POWEREDGE EXPANDABLE RAID CONTROLLER
When I run lspci I see:
01:00.0 SCSI storage controller: LSI Logic / Symbios Logic SAS1068E PCI-Express Fusion-MPT SAS (rev 08)
PCI-Express is an actual...well, PCI card, right? But dmidecode shows that I have two x8 PCI Express slots that are both available. Sooo...I'm missing something. How am I running a PCI Express SCSI controller without using a PCI Express slot? In the event of not having the kind of info that I did (i.e. the service tag) how would I be able to tell at a glance whether a component like my RAID controller was embedded or not?
Thanks in advance.
Last edited by Subject16; 12-20-2010 at 10:12 AM.