- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - HP-UX
- >
- Re: power path and VG alternate path
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
тАО03-07-2008 07:06 AM
тАО03-07-2008 07:06 AM
Any one have a working combination of Clarrion model (cx700) , HP-UX 10.20 and a power path s/w .
We had observed a tree passing issue on this setup and power path(dont know the exact version) module was removed (one year back)as it is reported unsupported on HP-UX 10.20.
Now we have two HBA in the system and 10 LUN is asigned to HBA1 remaining 10 LUN to HBA2 for load balancing.Also each of the 10 LUN is zoned to one HBA only so that only path is visible for each LUN.
I would like to keep all the LUNs zoned to both HBA so that the server is able to see two paths which can be added in VG as an alternate path.Currently the VG holds only one path of the each LUN.
The question is there a PP version which can work here, even though not supported? Or without PP can the VG or system handle the a tress pass in case of a SP failure or a HBA failure.
Solved! Go to Solution.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО03-07-2008 08:02 AM
тАО03-07-2008 08:02 AM
Re: power path and VG alternate path
Powerpath will look after that for you.
Rgds...Geoff
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО03-07-2008 08:08 AM
тАО03-07-2008 08:08 AM
Re: power path and VG alternate path
I dont have a PP installed now. How the system/VG will do the switching to the alternate path w/o management software, in case we dont have any supported PP.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО03-07-2008 10:23 AM
тАО03-07-2008 10:23 AM
SolutionIf no multipathing software is installed then simply add the other path to your volume group(s). LVM will recognize that it is the same disk just different path and label them as alternate paths.
I there is a failure to the primary path LVM will switch to the alternate path. Once the primary path is fixed I do not believe LVM will switch it back. You will have to do this manually.
You are running HPUX 10.20 so many things may or may not work perfectly for you due to the age of the OS and lack of updates and/or patches.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО03-07-2008 10:48 PM
тАО03-07-2008 10:48 PM
Re: power path and VG alternate path
LVM PVlinks concept is not exact replacement for PP.
PP does load balencing also, but LVM doesn't.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО03-08-2008 03:05 PM
тАО03-08-2008 03:05 PM
Re: power path and VG alternate path
--- Physical volumes ---
PV Name /dev/dsk/c46t0d3
PV Status available
Total PE 2157
Free PE 0
Autoswitch On
PV Name /dev/dsk/c46t0d7
PV Status available
Total PE 2157
Free PE 0
Autoswitch On
PV Name /dev/dsk/c46t1d3
PV Status available
Total PE 2157
Free PE 0
Autoswitch On
PV Name /dev/dsk/c47t0d5
PV Status available
Total PE 2157
Free PE 0
Autoswitch On
PV Name /dev/dsk/c47t1d1
PV Status available
Total PE 2157
Free PE 0
Autoswitch On
PV Name /dev/dsk/c47t1d5
PV Status available
Total PE 2157
Free PE 942
Autoswitch On
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО03-08-2008 03:35 PM
тАО03-08-2008 03:35 PM
Re: power path and VG alternate path
Set the distributed allocation policy. distributed can have one of the following values:
y Turn on distributed allocation.
n Turn off distributed allocation. This is the default.
When the distributed allocation policy is turned on, only one free extent is allocated from the first available physical volume. The next free extent is allocated from the next available physical volume. Allocation of free extents proceeds in round-robin order on the list of available physical volumes.
When the distributed allocation policy is turned off, all available free extents are allocated from each available physical volume before proceeding to the next available physical volume. This is the default.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО03-12-2008 04:51 PM
тАО03-12-2008 04:51 PM
Re: power path and VG alternate path
now both the HBA are zoned to see all the LUNs. then ran the ioscan and insf.
But i am still not able to access the secondory path. what you feel lokking at the o/p?
Here is the new inq o/p
r#oot [/root] /usr/local/bin/inq
Inquiry utility, Version V7.2-154 (Rev 4.0) (SIL Version V4.2-154)
Copyright (C) by EMC Corporation, all rights reserved.
For help type inq -h.
...............................................................................
...............................................................................
...............................................................................
...............................................................................
...............................................................................
...............................................................................
.......................................................................
-------------------------------------------------------------------------
DEVICE :VEND :PROD :REV :SER NUM :CAP(kb)
-------------------------------------------------------------------------
/dev/rdsk/c0t5d0 :SEAGATE :ST318436LC :HP05 :3BM0VMJ8 :17783240
/dev/rdsk/c0t6d0 :SEAGATE :ST318436LC :HP05 :3BM0W30M :17783240
/dev/rdsk/c1t2d0 :HP :DVD-ROM 304 :2.00 : 1999/10 : 190380
/dev/rdsk/c46t0d0 :DGC :CX700WDUNB :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t0d1 :DGC :CX700WDR5 :HP03 :Ch2 CONT :26516160
/dev/rdsk/c46t0d2 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t0d3 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t0d4 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t0d5 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t0d6 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t0d7 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t1d0 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t1d1 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t1d2 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t1d3 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t1d4 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t1d5 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t1d6 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t1d7 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t2d0 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t2d1 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t2d2 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t2d3 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t2d4 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t2d5 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t2d6 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t2d7 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t3d0 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t3d1 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t3d2 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t3d3 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t3d4 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t3d5 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t3d6 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t3d7 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t4d0 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t4d1 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t4d2 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t4d3 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t4d4 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t4d5 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t4d6 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t4d7 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t5d0 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t5d1 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t5d2 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c46t5d3 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c46t5d4 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t0d0 :DGC :CX700WDUNB :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t0d1 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t0d2 :DGC :CX700WDR5 :HP03 :Ch2 CONT :17677440
/dev/rdsk/c47t0d3 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t0d4 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t0d5 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t0d6 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t0d7 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t1d0 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t1d1 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t1d2 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t1d3 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t1d4 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t1d5 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t1d6 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t1d7 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t2d0 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t2d1 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t2d2 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t2d3 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t2d4 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t2d5 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t2d6 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t2d7 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t3d0 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t3d1 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t3d2 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t3d3 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t3d4 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t3d5 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t3d6 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t3d7 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t4d0 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t4d1 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t4d2 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t4d3 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t4d4 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t4d5 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t4d6 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t4d7 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t5d0 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t5d1 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t5d2 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
/dev/rdsk/c47t5d3 :DGC :CX700WDR5 :HP03 :Ch2 CONT :8838720
/dev/rdsk/c47t5d4 :DGC :CX700WDR5 :HP03 :Ch2 CONT : 0
am worried if the DVS_UNOPENED is causing the problem. let me know your openion.
:root [/root] /opt/fc/bin/fcmsutil /dev/td0 get remote all
Target N_Port_id is = 0x615e13
Target state = DVS_READY
Target Port World Wide Name = 0x5006016030603525
Target Node World Wide Name = 0x50060160b0603525
Common Service parameters (all values shown in hex):
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Version_Hi: 20 Version_Low: 9
BB_Credit: 8 Ciro: 1
Alt_BBcred: 0 Rxsz: 800
Conseq: ff RO_Bitmap: fe
Resolution: 0 EDTOV(ms): 7d0
Vendor version (in hex) 0 0 0 0
-------------------------------------------------------------
Target N_Port_id is = 0x616213
Target state = DVS_UNOPENED
Target Port World Wide Name = 0x5006016830603525
Target Node World Wide Name = 0x50060160b0603525
Common Service parameters (all values shown in hex):
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Version_Hi: 20 Version_Low: 9
BB_Credit: 8 Ciro: 1
Alt_BBcred: 0 Rxsz: 800
Conseq: ff RO_Bitmap: fe
Resolution: 0 EDTOV(ms): 7d0
Vendor version (in hex) 0 0 0 0
-------------------------------------------------------------
:root [/root] /opt/fc/bin/fcmsutil /dev/td1 get remote all
Target N_Port_id is = 0x625e13
Target state = DVS_UNOPENED
Target Port World Wide Name = 0x5006016130603525
Target Node World Wide Name = 0x50060160b0603525
Common Service parameters (all values shown in hex):
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Version_Hi: 20 Version_Low: 9
BB_Credit: 8 Ciro: 1
Alt_BBcred: 0 Rxsz: 800
Conseq: ff RO_Bitmap: fe
Resolution: 0 EDTOV(ms): 7d0
Vendor version (in hex) 0 0 0 0
-------------------------------------------------------------
Target N_Port_id is = 0x626213
Target state = DVS_READY
Target Port World Wide Name = 0x5006016930603525
Target Node World Wide Name = 0x50060160b0603525
Common Service parameters (all values shown in hex):
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Version_Hi: 20 Version_Low: 9
BB_Credit: 8 Ciro: 1
Alt_BBcred: 0 Rxsz: 800
Conseq: ff RO_Bitmap: fe
Resolution: 0 EDTOV(ms): 7d0
Vendor version (in hex) 0 0 0 0
-------------------------------------------------------------
the switch is McData ED64m.
Let me know your suggetions
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО03-12-2008 05:49 PM
тАО03-12-2008 05:49 PM
Re: power path and VG alternate path
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО03-12-2008 05:55 PM
тАО03-12-2008 05:55 PM