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тАО11-27-2007 08:54 PM
тАО11-27-2007 08:54 PM
I am going to configure PVLink with EVA3K.Attached "vgdisplay" command output shows the status of the server volume groups.
Here vg00 for internal disks,vg01,vg02,vg03 and vg04 are for eva3k.
Please help me to configure this.
Thanks
Nirukshitha
Solved! Go to Solution.
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тАО11-27-2007 09:26 PM
тАО11-27-2007 09:26 PM
Re: PVLink
more info are needed
ioscan -funC fc
ioscan -funC disk
if you're configuring disk from eva, make sure all the luns are configure as redundant. In this way, you will see more this in ioscan.
eg:
c1t1d0
c1t2d0
c4t1d0
c4t2d0
in this example, assuming c1t1d0 is the same disk with c4t1d0.
Perform the following command to check:
# echo "0x2008?4D" | adb /dev/dsk/c1t1d0
2008: 894960601 1067429315 94960601 1067430042
# echo "0x2008?4D" | adb /dev/dsk/c4t1d0
2008: 894960601 1067429315 94960601 1067430042
As you can see, its the same disk. Only the way hpux presents them as 2 disk.
If confirm, then exec vgextend.
# vgextend /dev/vgXX /dev/dsk/c4t1d0
It should be successful but be very careful. If c4t1d0 is different disk, it will be OVERWRITE/DESTROY. Always double check when execute the command above.
If successful, you can exec
# vgdisplay -v vgXX
and you check in 'physical volumes' section and u will notice 1 more link is added. Eg:
--- Physical volumes ---
PV Name /dev/dsk/c1t1d0
PV Name /dev/dsk/c4t1d0 Alternate Link
PV Status available
Total PE 17499
Free PE 17499
Autoswitch On
In this case, if should any of the fibre link fails (fibre cable/fibre adapter), vgXX will be still accessible.
Rgds
PS: pls don't forget to assign points. Good luck!
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тАО11-27-2007 10:12 PM
тАО11-27-2007 10:12 PM
Re: PVLink
Please see below command output
Class I H/W Path Driver S/W State H/W Type Description
==========================================================================
disk 0 0/0/3/0.0.0.0 sdisk CLAIMED DEVICE HL-DT-STDVD+RW GCA-4040N
/dev/dsk/c0t0d0 /dev/rdsk/c0t0d0
disk 1 0/1/1/0.0.0 sdisk CLAIMED DEVICE HP 73.4GMAU3073NC
/dev/dsk/c2t0d0 /dev/rdsk/c2t0d0
disk 2 0/1/1/0.1.0 sdisk CLAIMED DEVICE HP 73.4GMAU3073NC
/dev/dsk/c2t1d0 /dev/rdsk/c2t1d0
disk 3 255/255/0/0.0 sdisk CLAIMED DEVICE HSV100 HP
/dev/dsk/c20t0d0 /dev/rdsk/c20t0d0
disk 4 255/255/0/0.1 sdisk CLAIMED DEVICE HSV100 HP
/dev/dsk/c20t0d1 /dev/rdsk/c20t0d1
disk 5 255/255/0/0.2 sdisk CLAIMED DEVICE HSV100 HP
/dev/dsk/c20t0d2 /dev/rdsk/c20t0d2
disk 6 255/255/0/0.3 sdisk CLAIMED DEVICE HSV100 HP
/dev/dsk/c20t0d3 /dev/rdsk/c20t0d3
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тАО11-27-2007 11:07 PM
тАО11-27-2007 11:07 PM
Re: PVLink
I assume the EVA is still active/passive?
PVLINKS is working with active/active only.
But you are using secure path:
disk 6 255/255/0/0.3 sdisk CLAIMED DEVICE HSV100 HP
/dev/dsk/c20t0d3 /dev/rdsk/c20t0d3
The device file
255/255/0/0.3
clearly indicates this. No need to worry - all fine. ;-)
Hope this helps!
Regards
Torsten.
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тАО11-27-2007 11:19 PM
тАО11-27-2007 11:19 PM
Re: PVLink
Thanks for the information. You are correct. Secure path is already installed with active-passive mode. Problem is i will have to remove secure path because we are going to connect new eva8K to same server.It should be configured active -active.So I though to remove current secure path and planing to configure with pvlink.That is why we need to pvlink configuration.Do you have any though about this?
Regards
Nirukshitha
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тАО11-27-2007 11:20 PM
тАО11-27-2007 11:20 PM
Re: PVLink
You can also download and install "evainfo".
Hope this helps!
Regards
Torsten.
__________________________________________________
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those who understand binary, and those who don't.
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тАО11-27-2007 11:24 PM
тАО11-27-2007 11:24 PM
Re: PVLink
The software can also handle active/active, but it is not needed.
Hope this helps!
Regards
Torsten.
__________________________________________________
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those who understand binary, and those who don't.
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тАО11-27-2007 11:25 PM
тАО11-27-2007 11:25 PM
Re: PVLink
The software can also handle active/active, but it is not needed.
BTW, if you consider to upgrade the "old" to active/active, you can proceed to use secure path or uninstall it and use PVLINKS for both.
Hope this helps!
Regards
Torsten.
__________________________________________________
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those who understand binary, and those who don't.
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тАО11-27-2007 11:36 PM
тАО11-27-2007 11:36 PM
Re: PVLink
We are using secure path 3.0D. This is not support with active-active.So I will have to upgrade it to 3.0F with active -active.
Is it possible to configure pvlink for new eva8k , without doing any changes for old eva3k. It means Old EVA3k is going with Secure path active-passive ,but new one is going with pvlink.is this possible?
Regards
Nirukshitha
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тАО11-28-2007 12:44 AM