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What is VPLEX?

We are looking at implementing a storage virtualization device and I started doing a bit of research on EMC’s product offering.  Below is a summary of some of the information I’ve gathered, including a...

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Comparing Dot Hill and EMC Auto Tiering

The problem with auto tiering in general is that a large amount of hot I/Os is “hot” only for a brief moment in time. Workloads are not uniform across an entire data set constantly and if the data...

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Easy reporting on data domain using the autosupport log

I was looking for an easy (and free) way to do some daily reporting on our data domain hardware.  I was most interested in reporting on disk space, but decided to gather some other data as well.  The...

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Scripting automatic reports for Isilon from the CLI

We recently set up a virtual demo of an Isilon system on our network as we are evaluating Isilon for a possible purchase.  You can obtain a virtual node that runs on ESX from your local EMC Isilon...

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Celerra / VNX File replication job creation errors when selecting destination

I recently had an issue with setting up a new Celerra file system replication job. As soon as I selected the destination system I received the three errors below. 1) Query VDMs All. Cannot access any...

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Gathering performance data on a virtual windows server

When troubleshooting a potential storage related performance problem on a virtual windows server, it’s a bit more difficult to anaylze a because many virtual hosts share the same LUN for a datastore in...

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How to create a clone of a file system on a Celerra or VNX using nas_copy

Below are the steps used to create a clone of a file system on a Celerra or VNX.  Cloning can be done to the same data mover, a different data mover on the same array, or to a completely different...

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How to reserve a Celerra / VNX NAS share for a single file type or group of...

Several years ago I posted on Celerra/VNX NAS file extension filtering (see here), but didn’t write about file system reservations for specific file types, which is also possible.  You can set up NAS...

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Celerra Disk Provisioning Wizard incorrectly believes there are not enough...

I recently had an issue attempting to extend our production NAS file pool on our NS-960.  We had just added Six new 2TB SATA disks to the array, and when I launched the Disk Provisioning Wizard it gave...

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Using the server_stats command on Celerra / VNX File

Server_stats is a CLI based real time performance monitoring tool from EMC for the Celerra and VNX file.  This post is meant to give a quick overview of the server_stats command with some samples on...

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Dynamic allocation pool limit has been reached

We were having issues with our backup jobs failing on CIFS share backups using Symantec Netbackup.  The jobs died with a “status 24”, which means it was losing communicaiton with the source.  Our...

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The steps for NFS exporting a file system on a VDM

I made a blog post back in January 2014 about creating an NFS export on a virtual data mover but I didn’t give much detail on the commands you need to use to actually do it. As I pointed out back then,...

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Matching LUNs and UIDs when presenting VPLEX LUNs to Unix hosts

Our naming convention for LUNs includes the pool ID, LUN number, server name, filesystem/drive letter, last four digits of the array’s serial number, and size (in GB). Having all of this information in...

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Dell’s midrange.next

Dell EMC hasn’t really publicly talked about the launch of its next mid-range storage system, MidRange.next, but the wheels are turning.  It should be happening soon. Timing is everything for me, and...

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