On Tue, 30 Sep 2014 03:38:58 +0000
"Smith, Ann (CTO Service Delivery)" <[email protected]> wrote:
> For EMC vmax1 and vmax2 san we have 2 fcp addresses dedicated to the
> server/guest id (1 on each of 2 facbrics) 1 zfcp_disk_configure
> command for each lun - 1 for each fcp address So 2 total
> zfcp_disk_configure commands - 1 per zfcp device - 1 per fabric
>
> For IBM XIV the doc I have found indicates XIV supports 3 paths - not
> sure what you mean by 6 interface modules- but If still have 2 zfcp
> devices - does that mean I can do 3 zfcp_disk_configure's per zfcp
> device ?
It really depends on the setup of the SAN. What you have to do is
running zfcp_disk_configure once for every available path.
If we assume that the storage is attached to two fabrics, and if we
also assume that it has three interfaces attached to each of the
fabrics, you have 6 different paths from your two zFCP devices to the
storage. This also means, that you have 6 fibre connections from the
storage to your two fabrics.
I don't have XIV here, but the principle is the same with all storages.
If you really have three ioports per fabric, you can find the
respective WWPN of the IOPORT in the Storage System. With DS8000 and
dscli, it would be shown with
"lsioport"
To activate the disks, you will also need the LUN. Again in DS8000 and
dscli, you can find the first 8 numbers with
"showvolgrp -lunmap <groupid>"
The second 8 are just zero in that case. In order to activate a path to
say a WWPN 50050763051B473A and the LUN 4010400A on the zFCP device
0.0.fc00 you would then run the command
zfcp_disk_configure 0.0.fc00 50050763051b473a 4010400a00000000 1
Your local device FC00 would need to be in the same fabric as the
Storage IOPORT with WWPN 50050763051b473a of course.
With SLES11 SP3, after activating the zFCP device (with
zfcp_host_configure), you can also use the command "lsluns" to display
the available luns. The above disk would probably look similar to this:
Scanning for LUNs on adapter 0.0.fc00
at port 0x50050763051b473a:
0x4010400a00000000
Hope this helps...
Berthold
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