Device Files in Cell-Based Systems
The information in this section is taken directly from Chapter 17 where you will find a complete overview of nPartitions (hard partitions). Here we provide an overview of the paths and other information you'll see on some cell-based systems.
To start with let's take a look at detailed information for the local nPartition. We're interested in all of the components of our local nPartition as well as a detail of PCI I/O. The following listing shows the PCI detail with the rad -q command:
# rad -q Driver(s) Slot Path Bus Speed Power Occupied Suspended Capable 0-0-1-0 4/0/0 0 33 On Yes No No 0-0-1-1 4/0/1/0 8 33 On Yes No Yes 0-0-1-2 4/0/2/0 16 33 On Yes No Yes 0-0-1-3 4/0/3/0 24 33 On Yes No Yes 0-0-1-4 4/0/4/0 32 66 On Yes No Yes 0-0-1-5 4/0/6/0 48 33 On Yes No Yes 0-0-1-6 4/0/14/0 112 66 On Yes No Yes 0-0-1-7 4/0/12/0 96 33 On Yes No Yes 0-0-1-8 4/0/11/0 88 66 On Yes No Yes 0-0-1-9 4/0/10/0 80 33 On Yes No Yes 0-0-1-10 4/0/9/0 72 33 On Yes No Yes 0-0-1-11 4/0/8/0 64 33 On Yes No Yes 0-0-3-0 5/0/0 0 33 On Yes No No 0-0-3-1 5/0/1/0 8 33 On Yes No Yes 0-0-3-2 5/0/2/0 16 33 On Yes No Yes 0-0-3-3 5/0/3/0 24 33 On Yes No Yes 0-0-3-4 5/0/4/0 32 66 On Yes No Yes 0-0-3-5 5/0/6/0 48 33 On Yes No Yes 0-0-3-6 5/0/14/0 112 66 On Yes No Yes 0-0-3-7 5/0/12/0 96 33 On Yes No Yes 0-0-3-8 5/0/11/0 88 66 On Yes No Yes 0-0-3-9 5/0/10/0 80 33 On Yes No Yes 0-0-3-10 5/0/9/0 72 33 On Yes No Yes 0-0-3-11 5/0/8/0 64 33 On Yes No Yes 0-1-1-0 1/0/0 0 33 On Yes No No 0-1-1-1 1/0/1/0 8 33 On Yes No Yes 0-1-1-2 1/0/2/0 16 33 On Yes No Yes 0-1-1-3 1/0/3/0 24 33 On Yes No Yes 0-1-1-4 1/0/4/0 32 66 On Yes No Yes 0-1-1-5 1/0/6/0 48 33 On Yes No Yes 0-1-1-6 1/0/14/0 112 66 On Yes No Yes 0-1-1-7 1/0/12/0 96 33 On Yes No Yes 0-1-1-8 1/0/11/0 88 66 On Yes No Yes 0-1-1-9 1/0/10/0 80 33 On Yes No Yes 0-1-1-10 1/0/9/0 72 33 On Yes No Yes 0-1-1-11 1/0/8/0 64 33 On Yes No Yes 0-1-3-0 0/0/0 0 33 On Yes No No 0-1-3-1 0/0/1/0 8 33 On Yes No Yes 0-1-3-2 0/0/2/0 16 33 On Yes No Yes 0-1-3-3 0/0/3/0 24 33 On Yes No Yes 0-1-3-4 0/0/4/0 32 66 On Yes No Yes 0-1-3-5 0/0/6/0 48 33 On Yes No Yes 0-1-3-6 0/0/14/0 112 66 On Yes No Yes 0-1-3-7 0/0/12/0 96 33 On Yes No Yes 0-1-3-8 0/0/11/0 88 66 On Yes No Yes 0-1-3-9 0/0/10/0 80 33 On Yes No Yes 0-1-3-10 0/0/9/0 72 33 On Yes No Yes 0-1-3-11 0/0/8/0 64 33 On Yes No Yes #
rad produces an output that gives us a lot of detail about the nPartitions in our system. You should run this command on your Superdome complex so that you can see all of the components of which your Superdome is comprised. There is a lot of detail in this output that is not as easy to understand as the parstatus output (covered in Chapter 17). so let's take a closer look at a couple of these fields.
The first field is the slot information, which is in the following form:
Cabinet-Bay-Chassis-Slot such as 0-0-1-0 for the first entry
The second field, which is the Path, contains the following
Cell/SBA/LBA/Device such as 0/0/1/1 for the second entry
As with Virtual Partitions (vPars) covered in Chapter 16, you need to know something about the structure of your system in order to work with nPartitions. The System Bus Adapter (SBA) and Local Bus Adapters (LBAs) are not components that you would typically worry about if you were not working with partitions. For the purpose of working through the information in this chapter, it is sufficient to know that there is a hierarchical I/O structure on HP systems in which the SBA exists at a higher level than the LBA and there are typically several LBAs per SBA. That is why for the second field, SBA of 0 for instance, you'll see several third fields, which are many LBAs per SBA.
Next, let's issue ioscan -f to see all of the components of our local nPartition number 0 in a two-nPartition rp8400:
mtvnhp01:/>ioscan -f
Class I H/W Path Driver S/W State H/W Type Description
==============================================================================
root 0 root CLAIMED BUS_NEXUS
cell 0 0 cell CLAIMED BUS_NEXUS
ioa 0 0/0 sba CLAIMED BUS_NEXUS System Bus Ada
pter (804)
ba 0 0/0/0 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
unknown -1 0/0/0/0/0 UNCLAIMED UNKNOWN PCI BaseSystem
(103c128d)
tty 0 0/0/0/0/1 asio0 CLAIMED INTERFACE PCI Serial (10
3c1048)
lan 0 0/0/0/1/0 gelan CLAIMED INTERFACE HP A3639-60019
1000Base-T Built-in I/O
ext_bus 0 0/0/0/2/0 c720 CLAIMED INTERFACE SCSI C87x Ultr
a Wide Single-Ended
target 0 0/0/0/2/0.6 tgt CLAIMED DEVICE
disk 0 0/0/0/2/0.6.0 sdisk CLAIMED DEVICE HP 36.4GST3367
06LC
target 1 0/0/0/2/0.7 tgt CLAIMED DEVICE
ctl 0 0/0/0/2/0.7.0 sctl CLAIMED DEVICE Initiator
ext_bus 1 0/0/0/2/1 c720 CLAIMED INTERFACE SCSI C87x Fast
Wide Single-Ended
target 2 0/0/0/2/1.2 tgt CLAIMED DEVICE
disk 1 0/0/0/2/1.2.0 sdisk CLAIMED DEVICE HP DVD-RO
M 305
target 3 0/0/0/2/1.7 tgt CLAIMED DEVICE
ctl 1 0/0/0/2/1.7.0 sctl CLAIMED DEVICE Initiator
ext_bus 2 0/0/0/3/0 c720 CLAIMED INTERFACE SCSI C896 Fast
Wide Single-Ended
target 4 0/0/0/3/0.6 tgt CLAIMED DEVICE
disk 9 0/0/0/3/0.6.0 sdisk CLAIMED DEVICE HP 36.4GST3367
04LC
target 5 0/0/0/3/0.7 tgt CLAIMED DEVICE
ctl 2 0/0/0/3/0.7.0 sctl CLAIMED DEVICE Initiator
ext_bus 3 0/0/0/3/1 c720 CLAIMED INTERFACE SCSI C896 Fast
Wide LVD
target 6 0/0/0/3/1.7 tgt CLAIMED DEVICE
ctl 3 0/0/0/3/1.7.0 sctl CLAIMED DEVICE Initiator
ba 1 0/0/1 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
ba 2 0/0/2 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
ba 3 0/0/4 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
ba 4 0/0/6 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
ba 5 0/0/8 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
fc 0 0/0/8/0/0 td CLAIMED INTERFACE HP Tachyon TL/
TS Fibre Channel Mass Storage Adapter
fcp 2 0/0/8/0/0.10 fcp CLAIMED INTERFACE FCP Domain
ext_bus 20 0/0/8/0/0.10.30.0.0 fcparray CLAIMED INTERFACE FCP
Array Interface
target 7 0/0/8/0/0.10.30.0.0.0 tgt CLAIMED DEVICE
disk 12 0/0/8/0/0.10.30.0.0.0.0 sdisk CLAIMED DEVICE HP
A6188A
disk 13 0/0/8/0/0.10.30.0.0.0.1 sdisk CLAIMED DEVICE HP
A6188A
disk 16 0/0/8/0/0.10.30.0.0.0.2 sdisk CLAIMED DEVICE HP
A6188A
ext_bus 21 0/0/8/0/0.10.30.255.0 fcpdev CLAIMED INTERFACE FCP
Device Interface
target 8 0/0/8/0/0.10.30.255.0.0 tgt CLAIMED DEVICE
ctl 14 0/0/8/0/0.10.30.255.0.0.0 sctl CLAIMED DEVICE HP
A6188A
ext_bus 22 0/0/8/0/0.10.31.0.0 fcparray CLAIMED INTERFACE FCP
Array Interface
target 9 0/0/8/0/0.10.31.0.0.0 tgt CLAIMED DEVICE
disk 14 0/0/8/0/0.10.31.0.0.0.0 sdisk CLAIMED DEVICE HP
A6188A
disk 15 0/0/8/0/0.10.31.0.0.0.1 sdisk CLAIMED DEVICE HP
A6188A
disk 17 0/0/8/0/0.10.31.0.0.0.2 sdisk CLAIMED DEVICE HP
A6188A
ext_bus 23 0/0/8/0/0.10.31.255.0 fcpdev CLAIMED INTERFACE FCP
Device Interface
target 10 0/0/8/0/0.10.31.255.0.0 tgt CLAIMED DEVICE
ctl 15 0/0/8/0/0.10.31.255.0.0.0 sctl CLAIMED DEVICE HP
A6188A
ba 6 0/0/10 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
ba 7 0/0/10/0/0 PCItoPCI CLAIMED BUS_NEXUS PCItoPCI Bridg
e
lan 1 0/0/10/0/0/4/0 btlan CLAIMED INTERFACE HP A5506B PCI
10/100Base-TX 4 Port
lan 2 0/0/10/0/0/5/0 btlan CLAIMED INTERFACE HP A5506B PCI
10/100Base-TX 4 Port
lan 3 0/0/10/0/0/6/0 btlan CLAIMED INTERFACE HP A5506B PCI
10/100Base-TX 4 Port
lan 4 0/0/10/0/0/7/0 btlan CLAIMED INTERFACE HP A5506B PCI
10/100Base-TX 4 Port
ba 8 0/0/12 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
ba 9 0/0/14 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
memory 0 0/5 memory CLAIMED MEMORY Memory
processor 0 0/10 processor CLAIMED PROCESSOR Processor
processor 1 0/11 processor CLAIMED PROCESSOR Processor
processor 2 0/12 processor CLAIMED PROCESSOR Processor
processor 3 0/13 processor CLAIMED PROCESSOR Processor
cell 1 2 cell CLAIMED BUS_NEXUS
memory 1 2/5 memory CLAIMED MEMORY Memory
processor 4 2/10 processor CLAIMED PROCESSOR Processor
processor 5 2/11 processor CLAIMED PROCESSOR Processor
processor 6 2/12 processor CLAIMED PROCESSOR Processor
processor 7 2/13 processor CLAIMED PROCESSOR Processor
mtvnhp01:/>
This ioscan is context sensitive in that all of the components in nPartition 0 are shown in its output, including a total of eight processors. Cells 0 and 2 are in this nPartition. The following listing shows an ioscan output of the second nPartition in the same rp8400:
mtvnhp02:/>ioscan -f
Class I H/W Path Driver S/W State H/W Type Description
==============================================================================
root 0 root CLAIMED BUS_NEXUS
cell 0 1 cell CLAIMED BUS_NEXUS
ioa 0 1/0 sba CLAIMED BUS_NEXUS System Bus Ada
pter (804)
ba 0 1/0/0 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
unknown -1 1/0/0/0/0 UNCLAIMED UNKNOWN PCI BaseSystem
(103c128d)
tty 0 1/0/0/0/1 asio0 CLAIMED INTERFACE PCI Serial (10
3c1048)
lan 0 1/0/0/1/0 gelan CLAIMED INTERFACE HP A3639-60019
1000Base-T Built-in I/O
ext_bus 0 1/0/0/2/0 c720 CLAIMED INTERFACE SCSI C87x Ultr
a Wide Single-Ended
target 0 1/0/0/2/0.6 tgt CLAIMED DEVICE
disk 0 1/0/0/2/0.6.0 sdisk CLAIMED DEVICE HP 36.4GST3367
06LC
target 1 1/0/0/2/0.7 tgt CLAIMED DEVICE
ctl 0 1/0/0/2/0.7.0 sctl CLAIMED DEVICE Initiator
ext_bus 1 1/0/0/2/1 c720 CLAIMED INTERFACE SCSI C87x Ultr
a Wide Single-Ended
target 2 1/0/0/2/1.0 tgt CLAIMED DEVICE
tape 0 1/0/0/2/1.0.0 stape CLAIMED DEVICE HP C5683A
target 3 1/0/0/2/1.7 tgt CLAIMED DEVICE
ctl 1 1/0/0/2/1.7.0 sctl CLAIMED DEVICE Initiator
ext_bus 2 1/0/0/3/0 c720 CLAIMED INTERFACE SCSI C896 Ultr
a2 Wide Single-Ended
target 4 1/0/0/3/0.6 tgt CLAIMED DEVICE
disk 1 1/0/0/3/0.6.0 sdisk CLAIMED DEVICE HP 36.4GST3367
04LC
target 5 1/0/0/3/0.7 tgt CLAIMED DEVICE
ctl 2 1/0/0/3/0.7.0 sctl CLAIMED DEVICE Initiator
ext_bus 3 1/0/0/3/1 c720 CLAIMED INTERFACE SCSI C896 Ultr
a2 Wide LVD
target 6 1/0/0/3/1.7 tgt CLAIMED DEVICE
ctl 3 1/0/0/3/1.7.0 sctl CLAIMED DEVICE Initiator
ba 1 1/0/1 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
ba 2 1/0/2 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
ba 3 1/0/4 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
ba 4 1/0/6 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
ba 5 1/0/8 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
fc 0 1/0/8/0/0 td CLAIMED INTERFACE HP Tachyon TL/
TS Fibre Channel Mass Storage Adapter
fcp 0 1/0/8/0/0.10 fcp CLAIMED INTERFACE FCP Domain
ext_bus 4 1/0/8/0/0.10.30.0.0 fcparray CLAIMED INTERFACE FCP
Array Interface
target 7 1/0/8/0/0.10.30.0.0.0 tgt CLAIMED DEVICE
disk 2 1/0/8/0/0.10.30.0.0.0.0 sdisk CLAIMED DEVICE HP
A6188A
disk 3 1/0/8/0/0.10.30.0.0.0.1 sdisk CLAIMED DEVICE HP
A6188A
disk 4 1/0/8/0/0.10.30.0.0.0.2 sdisk CLAIMED DEVICE HP
A6188A
ext_bus 5 1/0/8/0/0.10.30.255.0 fcpdev CLAIMED INTERFACE FCP
Device Interface
target 8 1/0/8/0/0.10.30.255.0.0 tgt CLAIMED DEVICE
ctl 4 1/0/8/0/0.10.30.255.0.0.0 sctl CLAIMED DEVICE HP
A6188A
ext_bus 6 1/0/8/0/0.10.31.0.0 fcparray CLAIMED INTERFACE FCP
Array Interface
target 9 1/0/8/0/0.10.31.0.0.0 tgt CLAIMED DEVICE
disk 5 1/0/8/0/0.10.31.0.0.0.0 sdisk CLAIMED DEVICE HP
A6188A
disk 6 1/0/8/0/0.10.31.0.0.0.1 sdisk CLAIMED DEVICE HP
A6188A
disk 7 1/0/8/0/0.10.31.0.0.0.2 sdisk CLAIMED DEVICE HP
A6188A
ext_bus 7 1/0/8/0/0.10.31.255.0 fcpdev CLAIMED INTERFACE FCP
Device Interface
target 10 1/0/8/0/0.10.31.255.0.0 tgt CLAIMED DEVICE
ctl 5 1/0/8/0/0.10.31.255.0.0.0 sctl CLAIMED DEVICE HP
A6188A
ba 6 1/0/10 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
ba 7 1/0/10/0/0 PCItoPCI CLAIMED BUS_NEXUS PCItoPCI Bridg
e
lan 1 1/0/10/0/0/4/0 btlan CLAIMED INTERFACE HP A5506B PCI
10/100Base-TX 4 Port
lan 2 1/0/10/0/0/5/0 btlan CLAIMED INTERFACE HP A5506B PCI
10/100Base-TX 4 Port
lan 3 1/0/10/0/0/6/0 btlan CLAIMED INTERFACE HP A5506B PCI
10/100Base-TX 4 Port
lan 4 1/0/10/0/0/7/0 btlan CLAIMED INTERFACE HP A5506B PCI
10/100Base-TX 4 Port
ba 8 1/0/12 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
ba 9 1/0/14 lba CLAIMED BUS_NEXUS Local PCI Bus
Adapter (782)
memory 0 1/5 memory CLAIMED MEMORY Memory
processor 0 1/10 processor CLAIMED PROCESSOR Processor
processor 1 1/11 processor CLAIMED PROCESSOR Processor
processor 2 1/12 processor CLAIMED PROCESSOR Processor
processor 3 1/13 processor CLAIMED PROCESSOR Processor
mtvnhp02:/>
This ioscan output includes all components in nPartition 0 in this rp8400. Cell 1 is shown in this ioscan output as well.
The ioscan outputs produced a lot of components for our local partition. The form of the ioscan output for an nPartition looks like the following:
Field 1 Field 2 3 Field 4 Field 5 Field 6 Global cell no./proc, mem, or SBA/LBA/Card address/Function/dev addr
The six fields in the ioscan provide you with a lot of useful information about the components in your local nPartition. The LBA number is not the same as the PCI card number in many cases. Be careful when configuring I/O on any HP 9000 to check the PCI card slot vs. the LBA number.
Please see Chapter 17 for more information on commands related to working with cell-based systems.