Storage

On the HP Discover in June 2013 (I wrote 2014, sorry for that typo). HP has announced the HP 3PAR StoreServ 7450 All-Flash Array. To optimize the StoreServ platform for all-flash workloads, HP made some changes to the hardware of the nodes. The 7450 uses 8-core Intel Xeon CPUs instead 6-core 1.8 Ghz CPUs, the cache was doubled from 64GB to 128GB and they added some changes to the 3PAR OS: HP added additional cache flush queues to separate the flushing of cache for rotating rust and SSD devices. They also made some write I/O optimizations and added the ability to perform fragmented writes. Instead of writing 16 KB blocks, 3PAR OS is now able to write only 4 KB of a 16 KB block. This software-based changes may be used also on the 7200 and 7400. This leads to the new…

In April 2014 was a bug in vSphere 5.5 U1 discovered, which can lead to APD events with NFS datastores.iSCSI, FC or FCoE aren’t affected by this bug, but potentially every NFS installation running vSphere 5.5 U1 was at risk. This bug is described in KB2076392. Luckily none of my customers ran into this bug, but this is more due to the fact, that most of my customers use FC/ FCoE or iSCSI. Until today the only solution was to avoid the upgrade to U1 and to use vSphere 5.5 GA (with some patches to fix the Heartbleed bug).

Yesterday I received the following tweet:

Later Craig Kilborn joined the conversation and I decided to clarify this 100 or 1 IOPS myth the next morning.

In order to give you some context: I wrote a blog post about adding a custom SATP claimrule for HP 3PAR StoreServ storage on ESXi. In this blog post I pointed out, that the claim rule is usually used to change the default behaviour for switching the path for active IO. For the VMW_PSP_RR this is 1000 IOPS, which means, that after 1000 IOPS for a specific device, the path for the active IO to this device ist changed to the next active and optimized IO path. I recommend to read this blog post from Duncan Epping for more information.

One of the tasks that I finish before I present the first Virtual Volumes (VV) to hosts is to discuss the need of a custom SATP claimrule with the customer. Requirement for a custom claimrule is usually, that the active and optimized path should be switched after each IO and not after 1000 IOs. Duncan Epping wrote a nice blog post some years ago. I recommend to read it.

Some basics

The Storage Array Type Plug-In (SATP) is responsable for array-specific operations, like health monitoring of physical paths, reporting of path state changes and path failover. Each SATP is linked to a Path Selection Policy (PSP), which controls the selection of active paths for IO. VMware ESXi provides a couple of SATPs:

HP 3PAR Adaptive Optimization (AO) enables autonomic storage tiering on HP 3PAR storage arrays. With this feature the HP 3PAR storage system analyzes IO and then migrates regions of 128 MB between different storage tiers. Frequently accessed regions of volumes are moved to higher tiers, less frequently accessed regions are shifted to lower tiers. I often talk with customers about AO and I know that this feature is sometimes misunderstood and misconfigured. This blog post is a summary of in my opinion important topics.

HP StoreOnce Appliances or VSA offers three different types of backup destinations:

• Virtual Tape Library (VTL)
• NAS (CIFS or NFS)
• StoreOnce Catalyst

If you use Veeam Backup & Replication, the NAS feature is possibly worth a try. Using the NAS feature, the StoreOnce appliance or VSA offers a CIFS or NFS share, which can be used as a backup destionation. Today I want to show you how you can use a NAS share of a StoreOnce VSA with Veeam Backup & Replication.To backup virtual maschines with Veeam Backup & Replication to a HP StoreOnce VSA you need at least three things:

In part I of this series I showed you the download and the deployment of the HP StoreOnce VSA. Part II showed you the configuration of two libraries and the connection of the backup server to this two tape libraries. Part III of this series covers the configuration of devices and meda pools in HP Data Protector 8.1. This article will not show the installation of HP Data Protector 8.1.

The HP StoreOnce VSA is a virtual storage appliance, that is designed for backups between 1 TB and 10 TB and it’s based on HPs StoreOnce technology. I wrote a short overview about the HP StoreOnce VSA some weeks ago. Take a look at this blog posting if you are not familiar with HP StoreOnce VSA. This article is focuses on the deployment of the HP StoreOnce VSA in a VMware vSphere environment. A second and third blog post covers the configuration of the HP StoreOnce VSA with HP Data Protector.

In part I of this series I showed you the download and the deployment of the HP StoreOnce VSA. But without further configuration, it’s only a VM that has 4 vCPUs, 16 GB memory and ~ 1,5 TB of disk space. Pretty much for a VM that can’t do anything for you. ;)

Creating a library

Open a browser and open the StoreOnce Management Console.

I would like to thank Calvin Zito for the donation of StoreVirtual NFR licenses to vExperts. This will help to spread the knowhow about this awesome product! If you are not a vExpert, you can download the StoreVirtual VSA for free and try it for 60 days. If you are a vExpert, ping Calvin on Twitter for a 1y NFR license.

This blog post covers the deployment of the current StoreVirtual VSA release (LeftHand OS 11). A second blog post covers the configuration using the CMC. Both posts are focused on LeftHand OS 11 and VMware vSphere. If you are searching for a deployment and configuration guide for LeftHand OS 9.x or 10 on VMware vSphere, take a look at this two blog posts from Craig Kilborn: Part 1 – How To Install & Configure HP StoreVirtual VSA On vSphere 5.1 & Part 2 – How To Install & Configure HP StoreVirtual VSA On vSphere 5.1. Another blog post that covers LeftHand OS 11 is from Hugo Strydom. Hugo wrote about what he did with his VSA (vExpert : What I did with my HP VSA). I wrote a blog post about the HP StoreVirtual VSA some weeks ago. If you are interested in some basics about the VSA, check my mentioned blog post.