Archive for January, 2015

Impact of the GNU glibc gethostbyname Function Buffer Overflow “GHOST” Vulnerability on EMC Isilon OneFS

Kirsten Gantenbein

Kirsten Gantenbein

Principal Content Strategist at EMC Isilon Storage Division
Kirsten Gantenbein
Kirsten Gantenbein

The “Ghost” vulnerability (CVE-2015-0235) in the gethostbyname functions of the GNU C Library (glib), which is commonly found in Linux based operating systems, affects applications calling this function. In some special instances, the successful exploitation of this vulnerability could allow an attacker to perform remote code execution on a targeted system.

Following the release of this vulnerability, we immediately initiated a review of EMC Information Infrastructure and RSA products to assess any potential impact. We have published knowledgebase articles on our customer accessible support websites that reflect the most up to date information from our review along with remediation plans, where needed.

For information on EMC products, including Isilon OneFS, please visit and bookmark KB article 197461 (log in to the EMC Online Support site is required).

We will continue to update the information as our review and remediation continues using our standard customer communication channels, such as the KB article above, and at the EMC Product Security Blog.

If customers have trouble accessing the articles, they can reach out to EMC support at support@emc.com.

The EMC Isilon Uptime Bulletin, reinvented

Kirsten Gantenbein

Kirsten Gantenbein

Principal Content Strategist at EMC Isilon Storage Division
Kirsten Gantenbein
Kirsten Gantenbein

When we launched the EMC® Isilon® Uptime Bulletin in 2013, each issue was published in a PDF format that could be downloaded from the EMC Online Support site. Because the Uptime Bulletin contains timely information, such as OneFS target code, tips, and the latest firmware releases, we wanted to deliver this information to our customers in a more direct way.

Beginning this year, new Uptime Bulletin content is published to the Uptime Information Hub on the Isilon online community. You can now locate useful information about best practices, OneFS patches, and the latest OneFS and firmware releases, at a glance. The Uptime Information Hub is continuously updated with new information. So be sure to bookmark this page and check it regularly.

New uptime OneFS topic articles

Every quarter, we develop Uptime Bulletin articles that offer tips and best practice information about using OneFS. Here is a summary of new articles that you can now read on the Uptime Information Hub.

  • OneFS MRs and How We Drive Continuous Improvements
    ToddDillon

    Todd Dillon

    Todd Dillon, Senior Director of Software Engineering, explains how Isilon Storage Division uses the EMC Total Customer Experience process to triage every customer-impacting event in OneFS that happens worldwide. Learn how this three-phase process helps to drive continuous improvements with quality assurance (QA) and how maintenance releases (MRs) are determined.

  • Planning OneFS Upgrades with Global Namespace Acceleration (GNA) Nodes
    GNA is a OneFS feature that helps you increase performance by using solid state drives (SSDs) to store metadata for read-only purposes. If you use the GNA feature and are planning to upgrade to OneFS 7.0 and later, there are important considerations you need to make. Learn how to verify that your cluster meets minimum requirements for GNA before you upgrade.
  • Performance Monitoring and Planning
    uptime performance article
    Basic performance measurement knowledge of your current Isilon cluster can help you in understanding how adding new volumes or workloads will impact performance. This article walks you through how to perform a workload analysis, and provides best practice information about when to perform this type of analysis.

If you have article feedback or comments, please leave a comment on the Isilon community.  You can also review the PDF versions of past issues of the Uptime Bulletin by visiting the EMC Online Support site.

Start a conversation about Isilon content

Have a question or feedback about Isilon content? Visit the online EMC Isilon Community to start a discussion. If you have questions or feedback about this blog, contact us at isi.knowledge@emc.com. To provide documentation feedback or request new content, contact isicontent@emc.com.

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“Hacker How-To” survey results: cluster capacity and performance

Kirsten Gantenbein

Kirsten Gantenbein

Principal Content Strategist at EMC Isilon Storage Division
Kirsten Gantenbein
Kirsten Gantenbein

On this blog and on the EMC Isilon community, we asked which OneFS topics you would like to see in a new Hacker How-To series on Twitter. The results are below.

In March, the next Hacker How-To series will focus on cluster capacity and performance.

Over the course of four-weeks, there will be tweets on @EMCIsilon and new blog articles that point you to resources about cluster capacity. Our goal is to link you to currently available videos and white papers, and new content, to help you understand and manage cluster capacity for optimal performance.

Hacker How-To Survey Results 2015

We really appreciate your feedback about topics of interest. We’ll continue to work on creating content for our Isilon Community and ISI Knowledge blog that addresses the following popular topics:

  • Security (permissions, authentication, and role-based access control)
  • Administrative tasks (upgrades, monitoring, maintenance, and cluster health)
  • Multiprotocol support (shares, exports, home directories, and permissions)
  • Compliance (the most specified topic from our “other” responses)

Social media channels

We were also curious to see if there was a preference for social media channels. The results were as expected among our audience, and we’ll continue to use this blog, the Isilon Community, and our Twitter handle as our main social media channels for providing Isilon support content.Q2-survey-results

We appreciate your time and participation in our survey. If you have questions or feedback about this blog, contact us at isi.knowledge@emc.com.

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Top EMC Isilon support documents in December 2014

Kirsten Gantenbein

Kirsten Gantenbein

Principal Content Strategist at EMC Isilon Storage Division
Kirsten Gantenbein
Kirsten Gantenbein

Here are new customer support documents that were published in December, which include several KB articles about EMC® Isilon® SyncIQ policies and new Isilon Community blog posts published that were written by Isilon experts. You can also review the most viewed KB articles on the EMC Online Support site.

Hacker How-To survey results will be announced on Thursday, 1/15.

Most viewed knowledgebase (KB) articles

Check out December’s top 10 most viewed KB articles.

  1. Best practices for NFS client settings (90041)
  2. How to upload files to Isilon Technical Support (16759)
  3. OneFS 7.1.0.5 SMB and Authentication Rollup Patch (174372)
  4. Master Article: Remote Proactive (RCM) (193448)
  5. How to reimage a node using a USB flash drive (16582)
  6. OpenSSL Multiple Vulnerabilities in EMC products (188456)
  7. OneFS 6.5 and later: How to safely shut down an Isilon cluster prior to a scheduled power outage (16529)
  8. How to reset the CELOG database and clear all historical events (16586)
  9. OneFS sysctl commands (89334)
  10. How to create a bootable image of OneFS on a USB flash drive (16691)

Most viewed product documentation

Unfortunately we’re not able to offer documentation reports at this time.

New Isilon support content

Check out these links to new support content published in December (login to the EMC Online Support site is required for all content except videos).

CONTENT TYPE

TITLE AND LINK

Video Technical Demo: EMC Isilon SnapshotIQ
Video Technical Demo: EMC Isilon OneFS Simulator
Isilon Community (ECN) Blog Mapping Root to Root versus Root Clients on NFS Exports
Isilon Community (ECN) Blog Elastic Big Data Infrastructure with VMware’s Big Data Extensions 2.1 and Isilon
Isilon Community (ECN) Blog SolVe Generator Desktop is now available to EMC Isilon customers
Isilon Community (ECN) Blog Find out what’s new with OneFS protocol auditing in OneFS 7.1 and OneFS 7.2
Isilon Community (ECN) Blog Welcome to InsightIQ 3.1
Release Notes (updated) VAAI NAS Plug-In for Isilon 1.2 Release Notes
Release Notes (updated) Isilon OneFS 7-1-0 MR Release Notes
KB Article How to configure Active/Passive Failover between a Cisco switch and an Isilon cluster running OneFS 6.5 or later (193717)
KB Article OneFS: SyncIQ policy fails with error: Unable to delete [path]: unlink of Lin 0 failed: No such file or directory (195208)
KB Article OneFS 7.1.1: A SyncIQ policy might fail if the –skip_bb_hash option is set to ‘no’ (195168)
KB Article SyncIQ failover/failback “Allow-write” operation fails with error: siq_policies_load_internal: Failed to gci_ctx_new: Could not allocate parser read buffer: Cannot allocate memory (195578)
KB Article OneFS 6.5 – 7.2 does not support monitoring through SNMP v1 (195412)
KB Article OneFS: SyncIQ policy fails with error: SyncIQ failed to take a snapshot on source cluster. Can’t find latest snapid XXX (195411)

Tell us what you want to know! Contact us with questions or feedback about this blog at isi.knowledge@emc.com. To provide documentation feedback or request new content, contact isicontent@emc.com.

 

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New EMC Isilon videos for a new year!

Kirsten Gantenbein

Kirsten Gantenbein

Principal Content Strategist at EMC Isilon Storage Division
Kirsten Gantenbein
Kirsten Gantenbein

Happy New Year! I hope you had a wonderful holiday season!

December was a busy month. I recently shared a survey about which EMC® Isilon® OneFS® topics you would like to learn more about. I’ll announce the survey results and the new Hacker How-To series topic next week.

We also published two videos in December that you can view now.

Technical Demo: EMC Isilon OneFS Simulator

You can now spin up your own virtual OneFS 7.2 cluster. This technical demo video shows you how to download and extract the OneFS Simulator file from the EMC Isilon OneFS Operating System Simulator Download website. It then provides steps for setting up a VMware® player, gathering configuration details, and creating a three-node virtual cluster.

Technical Demo: EMC Isilon SnapshotIQ

This demo video walks you through common configuration tasks using the OneFS web administration and command-line interfaces, such as creating, viewing, reverting, and deleting snapshots.

Stayed tuned to our Isilon Support playlist and the EMC Isilon online community for upcoming videos.

Start a conversation about Isilon content

Have a question or feedback about Isilon content? Visit the online EMC Isilon Community to start a discussion. If you have questions or feedback about this blog, contact us at isi.knowledge@emc.com. To provide documentation feedback or request new content, contact isicontent@emc.com.