VMAX3 and Locked Devices

I have an application that writes to its Device then  inside the array that Device is mirrored to an BCV.  When it is time for a backup a script will kick off that will break the mirror.
Then the backup application reads the data from that mirrored BCV.  Sometimes things will go wrong and that script will never resync the mirror.  That then results in broken backups.  To fix this I had to go into the VMAX3 SYMCLI and run these few commands.

  1.  symdev -lock list
  2. symdev release “Then confirm yes for each lock”

Looks really simple doesn’t it?  It took me a while to figure out.  It is not often I have to touch the VMAX and when I do it is usually with the GUI.  I also have a thick book of all the long complicated SYMCLI commands.  Thankfully through trial and error it ended up just being two simple commands.

Create Storage on Pure

In this post I am going to explain the creation of a storage volume on a Pure Storage array.  It has great and easy to use interface that utilizes HTML5.  I have worked with a few different storage arrays and it is by far the simplest to use.

  1.  When you first login to the Pure Storage array you will be greeted with a screen similar to this.first screen.PNG
  2. Now click on Storage and you will be greeted with a screen covering the Hosts and Volumes.  In this screen you will see all the host you have provisioned, and details on the storage usage.

    3. Click on the + sign to setup the host on the array and select host.  Enter a name and hit create.  Now your host is created and its time to enter the WWN.create host4.  Now if you are running vCenter Cody Hosterman has a great Powershell script that will import all your Host and WWN for you.  If not here is were we enter the WWN.  Click on Host Ports and then click the  gear on the right side, and select configure WWN.  From here if you already zoned in the storage you will see your WWN; if not you can go ahead and enter them manually.wwn5. Now that your Host is created and zoned in its time to create the Volume and connect it to the host.  Click Volumes + sign at the bottom left and the screen, and enter the size Volume you want.  volume

6. Now click on your host and click the gear and choose Connect Volumes.  finish

Now your Volume is ready to go.  Its a fairly simple and straight forward process.

In future posts I plan on covering the setting up snapshots and replication.  I will also cover the same information on EMC XtremIO. Thanks for reading and look for the next post coming soon.

Using Solution Enabler to Delete a Storage Group

Recently I have been working on cleaning up storage on a EMC VMAX3.  You can do a lot using the GUI for most of the day to day maintenance, but using the CLI is a lot more efficient when it comes to removing storage groups.

symsg -sid 1234 delete storgegroup_SG -force

Using that command is a simpler and quicker way to remove storage groups than to use the Unisphere GUI.

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