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Servers & Storage Feed

Sun Servers and Storage, Solaris, Oracle Linux, Red Hat Linux, Oracle VM for x86, Oracle VDI and Virtualization resources, news, and support articles.

Enabling Predictive Cache Statistics (PCS) for Data OnTap 8.2p

* node1 is the controller currently primary to the aggregate/vol/LUN.
Step 1: Enable PCS
node1::> node run –node node1
node1::> options flexscale.enable on
node1::>options flexscale.enable
flexscale.enable pcs  you should see this
node1::>options flexscale.pcs_size 330GB  based on 3 x 200GB SSD RAID4
Step 2: Allow the representative workload to run and Run your workload
Step 3: Collect data throughout the process

Relooking at usage of /home directory in Linux

File System in /home can be clustered very quickly nowadays where the amount of data are massive. Residing all the users in one /home directory will cause the administrator to quickly reach the limits of the File System especially if the File System is not a Parallel File System.

Set up Two Node RDO Juno ML2&OVS&VXLAN Cluster runnig Docker Hypervisor on Compute Node (CentOS 7, kernel 3.10.0-123.20.1.el7.x86_64)

It’s quite obvious that Nova-Docker driver set up success for real application is important to get on Compute Nodes . It’s nice when everything works on AIO Juno host or Controller, but  just as demonstration. Might be I did something wrong , might be due to some other reason but kernel version 3.10.0-123.20.1.el7.x86_64 seems to be the first brings  success on RDO Juno Compute nodes.
Follow  up to section

Oracle Solaris 11 Derived Manifest and modifying the boot system

This is a follow on from last last blog entry "Oracle Solaris 11 Derived Manifest with Automated Installation", where I mentioned that I could not examine the disk partitions of the new system since the aiuser does not have permission to run fdisk.

SmartDataCenter and the merits of being opinionated

Recently, Randy Bias of EMC (formerly of CloudScaling) wrote an excellent piece on Why “Vanilla OpenStack” doesn’t exist and never will. If you haven’t read it and you are anywhere near a private cloud effort, you should consider it a must-read: Randy debunks the myth of a vanilla OpenStack in great detail. And it apparently does need debunking; as Randy outlines, those who are deploying an on-premises cloud expect:

NetApp Visual Storage Console (VSC)5.0 Plugin for VCentre 5.5

VSC 5.0 is a major change that includes a new look and seamless integration with the VMware vSphere Web Client. New features in this release include support for the following:

  • The VMware vSphere Web Client
  • VASA Provider for clustered Data ONTAP®
  • SnapVault integration as a backup job option for clustered Data ONTAP
  • Adding a virtual machine or datastore to an existing backup job
  • Numerous bug fixes

VSC 5.0 discontinues support for the following:

Kibana connection failed elasticsearch 1.4

While trying to setup ELK(Elastic Search, Logstash and Kibana) I got an error saying “Connection Failed”
If you are suing elastic search version 1.4 or above this issue will occur.
To resolve it append following lines in elasticsearch.yml file(which is in config directory of elastic search):

http.cors.allow-origin: "/.*/"
http.cors.enabled: true

After adding above lines restart elasticsearch.
This should fix “Connection Failed” issue.

Picturesque Lock Screen

Picturesque Lock Screen brings the beautiful Bing home page images to your Android lock screen.

Getting Started With FreeRTOS for Xen on ARM

One of the challenges of using Xen in embedded environments is the need for core components to meet critical timing requirements. In traditional implementations engineers use real-time operating systems (RTOS) to ensure, for example, that an automobile’s brakes engage within a reasonable amount of time after the driver presses the brake pedal. It would clearly be bad if such a command were to be delayed unduly due to the car’s navigation or entertainment systems.

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