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Oct 19, 2015
How To Use Consistent_Lun setting on VMAX Initiator Groups
Introduction Using the consistent_lun setting we eliminate the issue where different devices show different lun id’s. This is more prevalent with ESX Hosts. For this to work the flag must be set at creation time of the host and parent initiator groups. In this post we will cover how to complete the task. Step 1 – Create Host Initiator Groups The first step is to create the host initiator... read more
Oct 5, 2015
How to Remove a TDEV on EMC VMAX
Introduction So you are doing some cleanup on your VMAX and need to remove a few TDEV volume’s in a Storage Pool and want to free this space to create a new volume or expand an existing volume. In this post we will detail how to delete a single TDEV volume in a Storage Group. An example of such a configuration is in the case where a single TDEV was mapped and used as a dedicated server volume with... read more
Sep 29, 2015
How To Remove a Device Tag on a Recoverpoint TDEV
Learned a new tidbit today on removing device tags on EMC VMAX and RecoverPoint. Before you can reclaim a TDEV you must first remove the Device Tag. Overview In this post we will cover how to remove the device tag, disable write access, un-map, un-bind the device and dissolve the meta on EMC VMAX that is using Recoverpoint Remove the Device Tag First get the tag information: $ symdev -sid... read more
Sep 20, 2015