installing DMP on MC server guard with LVM (HPUX11.23) servers

[Need to migrate XP Back]

Hi,

We have 2 1a64 server (rx8640) in production environment also it is using MC service Guard for SAN side clustered netapp pairs (two fabric is connected to each HBA and each fabric will have two netapp two HBA is installed on the servers)
due some multipath issue we requested Netapp to provide multipath software as per that they provided DMP . If it will work with HPUX11.23 with LVM also we have online jfs installed
please find product details

OS info:
sysname = HP-UX
release = B.11.23
version = U (unlimited-user license)
machine = ia64
idnumber = 3473239645
vmunix _release_version:
@(#) $Revision: vmunix: B11.23_LR FLAVOR=perf Fri Aug 29 22:35:38 PDT 2003 $

Veritas License details
Product Name = VERITAS File System
Serial Number = 1
License Type = PERMANENT
OEM ID = 4095

Features :=
HP_OnlineJFS = Enabled

CPU Count = Not Restricted
Platform = HP-UX
Version = 4.1
File Change Log = Enabled


sanlun version 3.3.78.4031
------- FCP adapters ---------

adapter name: fcd0
WWPN: 50060b0000c981bc
WWNN: 50060b0000c981bd
driver name: fcd
model: A9784-60002
model description: HP 2Gb Fibre Channel FC/GigE-TX Combo Adapter
serial number: PRA06294NS
hardware version: 3
driver version: @(#) libfcd.a HP Fibre Channel ISP 23xx & 24xx Driver B.11.23.08.01 /ux/core/isu/FCD/kern/src/common/wsio/fcd_init.c:Jun 1 2007,16:56:21
firmware version: 3.3.171
Number of ports: 1
port type: Fabric
port state: Operational
supported speed: 2 GBit/sec
negotiated speed: 2 GBit/sec
OS device name: /dev/fcd0

adapter name: fcd1
WWPN: 50060b0000861088
WWNN: 50060b0000861089
driver name: fcd
model: A9784-60002
model description: HP 2Gb Fibre Channel FC/GigE-TX Combo Adapter
serial number: PRA06294FY
hardware version: 3
driver version: @(#) libfcd.a HP Fibre Channel ISP 23xx & 24xx Driver B.11.23.08.01 /ux/core/isu/FCD/kern/src/common/wsio/fcd_init.c:Jun 1 2007,16:56:21
firmware version: 3.3.171
Number of ports: 1
port type: Fabric
port state: Operational
supported speed: 2 GBit/sec
negotiated speed: 2 GBit/sec
OS device name: /dev/fcd1

Please let me whether can i implement this tool in our servers
Also if I install DMP it will hamper any existing setup ?

Suggestions will be very much appreciated

[AnthonySN]

If your qusetion is whether DMP will work with hpux 11.23 then the ans is yes.
since we do have a customer using DMP for multipath on hpux11.23. they use VVR for replication.
but no secure from hp should be in your server if you are using DMP.

[chris huys_4]

Hi,

DMP stands for dynamic multipathing, and is the multipathing solution of VxVM, veritas volumemanager, and thus has nothing to do with LVM, hp-ux default logical volumemanager.

"netapp provided dmp"
Its symantec/veritas, who developes for a specific storage, the free dmp library, based on information that comes from the hardware vendor of the storage, in this case netapp.

Anyway, unless you were allready paying for the full vxvm version of vxvm, which is a necessity for being able to use dmp, netapp provided you with nothing, that wasnt free downloadable from the symantec website.

To check if the full vxvm version is installed, issue the command

# vxdctl license

If this gives a output comparable with the following,

All features are available:
Mirroring
Root Mirroring
Concatenation
Disk-spanning
Striping
RAID-5
VxSmartSync
Clustering-lite
DMP (multipath enabled)

,full vxvm is installed. If it includes all of the above lines and more, all the better, if it gives less lines then the above, especially the line DMP(multipath enabled), isnt there, then you dont have the full vxvm version, and the "dmp library given", will do you no good.

Greetz,
Chris

[Need to migrate XP Back]

We are not using veritas only it will use for onlie jfs purpose, also now ew are searching a multipath tool wihich is compatable for netapp LUNs with native HPUX lvm and service guard
please provide and update it will help me alot