Put Storwize(v7000) behind the SVC and do not confuse what you see

When you configure your SAN configuration and zone the SVC and v7000 together  you will see that two v7000 controllers will be appear, after i check on the internet is it true and maybe before i have to check this link first

https://www.ibm.com/developerworks/mydeveloperworks/blogs/anthonyv/entry/virtualizing_a_storwize_v7000_with_an_ibm_svc?lang=en

i have extra words, all presented volumes on v7000 without what preferred owner set  appear under configuration v7000 node controller on SVC, pls see below

Don’t worry that load balance is always working , check SAN traffic to find out ….

Also before configure mdisks and mdiskgroups pls read best practice paper before implement but shortcut for your all

On v7000 site :

Create 1 mdiskgroup

svctask mkmdiskgrp -ext 256 -name name_of_mdiskgroup -warning 80%

Create 1 array and assign it to such mdiskgroup

svctask mkarray -drive 12:36:34:19:20:18:16:15 -level raid5 -sparegoal 1 name_of_mdiskgroup

Numbers are disk you can list it under v7000

On SVC site:

You will see  mdisks under v7000 controller, create mdiskgroup from this mdisks and start to create volumes ..

 

My full commands ;

 

IBM_2076:EMPIRE2:superuser>svctask mkmdiskgrp -name mdiskgroup1 -ext 32 -warning 80%

MDisk Group, id [0], successfully created

IBM_2076:EMPIRE2:superuser>svctask mkmdiskgrp -name mdiskgroup2 -ext 32 -warning 80%

MDisk Group, id [1], successfully created

IBM_2076:EMPIRE2:superuser>svctask mkmdiskgrp -name mdiskgroup3 -ext 32 -warning 80%

MDisk Group, id [2], successfully created

IBM_2076:EMPIRE2:superuser>svctask mkmdiskgrp -name mdiskgroup4 -ext 32 -warning 80%

MDisk Group, id [3], successfully created

IBM_2076:EMPIRE2:superuser>svctask mkmdiskgrp -name mdiskgroup5 -ext 32 -warning 80%

MDisk Group, id [4], successfully created

 

svctask mkarray -drive 12:36:34:19:20:18:16:15 -level raid5 -strip 128 mdiskgroup1

svctask mkarray -drive 14:17:35:46:40:39:42:45 -level raid5 -strip 128 mdiskgroup2

svctask mkarray -drive 43:44:37:38:47:0:41:24 -level raid5 -strip 128 mdiskgroup3

svctask mkarray -drive 11:10:8:7:31:30:29:33 -level raid5 -strip 128 mdiskgroup4

svctask mkarray -drive 32:28:27:26:6:5:3:2 -level raid5 -strip 128 mdiskgroup5

 

VM

Posted on 13/05/2012, in SVC, V7000(Storwize) and tagged , , . Bookmark the permalink. 3 Comments.

  1. Hi,
    I have a question about the strip_size, why you use 128 instead of 256, which seems to be the default size ?
    I didn’t find it in the documentation ?

    • aaa i did not applied default , actually we start up started with lower strip size because of do not waste space then increase it up to 128. Default and recommended is 256 you right but until now we couldn’t see any difficulties

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