- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - HP-UX
- >
- Device path explain?
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-26-2010 11:33 PM
тАО10-26-2010 11:33 PM
disk 3 1/0/6/1/0/4/0.8.0.255.0.0.0 sdisk CLAIMED DEVICE HPQ BF03658242
/dev/dsk/c4t0d0 /dev/rdsk/c4t0d0
Explain above device path breifly?
Solved! Go to Solution.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-26-2010 11:57 PM
тАО10-26-2010 11:57 PM
Re: Device path explain?
proivide model and uname -a out put.
Chandra
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-27-2010 02:11 AM
тАО10-27-2010 02:11 AM
Re: Device path explain?
# model
and
# ioscan -fn
I can only tell it is a fiber channel loop connected disk.
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
__________________________________________________
No support by private messages. Please ask the forum!
If you feel this was helpful please click the KUDOS! thumb below!
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-27-2010 08:22 AM
тАО10-27-2010 08:22 AM
SolutionThis looks like a hardware path from a nPar-capable server. So the first four numbers can be used to identify the PCI slot. Run "rad -q" or "olrad -q" (depending on your HP-UX version) to get a list of device path components and the corresponding PCI slot numbers.
1 = cell #1
0 = system bus adapter
6 = local bus adapter
1 = PCI device number
0/4 = unknown; probably indicates this is a multi-port or multi-function PCI card.
0 = card port #0
8.0.255.0.0.0 = a FibreChannel device path; structure is Domain.Area.Port.Bus.Target.LUN.
Domain 8 indicates Private Loop addressing, so this FC HBA is not connected to a SAN fabric, but only to stand-alone FC disk box(es). In Private Loop mode, the Area is always 0.
Port 255 indicates Peripheral Device Addressing mode is used. In this mode, the FC Loop ID = (Bus * 16) + Target, or 0 in your case.
In Peripheral Device Addressing mode, the LUN field is simply the target disk/LUN number.
To summarize:
This is probably the first disk or LUN in an external FibreChannel-connected storage box, connected to FC port 0 of a FibreChannel HBA located in slot identified by hardware path 1/0/6/1.
If the "rad -q" / "olrad -q" listing identifies the slot by a dash-separated four-digit string (like A-B-C-D), then the first digit is the cabinet number, second is the side (0 = front, 1 = back), third is the I/O box number, and the fourth is the slot number in that I/O box.
MK
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-27-2010 12:21 PM
тАО10-27-2010 12:21 PM
Re: Device path explain?
So without knowing the server model you cannot tell anything for sure.
The path "1/0/6/1" can be found on many different servers, cell-based and non cell-based, perhaps even non-hotswap (so you cannot get details by using "olrad" commands).
Tell your server model ("model" command)and provide an "ioscan -fn" and we can provide you more details.
The part of the path "8.0.255" indicates it is using fiber channel in loop mode, so you probably use a FC connected disk chassis like DS2405 or DS2500 or FC10 or something - this will be shown in the ioscan.
BTW, did you already read this?
http://forums11.itrc.hp.com/service/forums/helptips.do?#33
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
__________________________________________________
No support by private messages. Please ask the forum!
If you feel this was helpful please click the KUDOS! thumb below!
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-27-2010 08:34 PM
тАО10-27-2010 08:34 PM
Re: Device path explain?
Use the lssf command to display detailed information about a device file.
#lssf /dev/rdsk/c4t0d0
Regds \ Vel
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-11-2010 01:24 PM
тАО11-11-2010 01:24 PM
Re: Device path explain?
/dev/dsk and /dev/rdsk are block and character device files respectively in legacy fashion. c stands for controller, t for target and d for the lun or disk. The controller is 7 bit , the target is 4 bit and the lun is 3 bit. Hope this is useful!! Cez of what i understood you were interested in device file naming as well including the H/W path.
Regards
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО11-11-2010 01:34 PM
тАО11-11-2010 01:34 PM
Re: Device path explain?
Hope this helps!
Regards
Torsten.
__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.
__________________________________________________
No support by private messages. Please ask the forum!
If you feel this was helpful please click the KUDOS! thumb below!