Davoud Teimouri - Virtualization and Data Center

Category: Data Storage

Data storage is a recording medium is a physical material that holds information.

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Data Center / Data Storage / Operating System / Reviews

I/O Block Size Best Practice on EMC All Flash/Hybrid Flash Array and Linux (Physical And Virtual)

We have a problem on our Oracle Database servers which are hosting by Oracle Linux servers, when Oracle Databases putting to Maximum Availability protection mode, some workloads impacts performance whole database ecosystem. The workloads are related to some tasks which performed from by application servers and the tasks needs huge read/write I/O on storage arrays. We are using DELL EMC Unity/Unity XT (All Flash/Hybrid Flash) family in most of projects. I did lots of searches and found nothing at first step. I had only one clue, I/O block size was very large during performing tasks by database servers.

Dell EMC Unity XT 0

Data Storage / News

Major Update For DELL EMC Unity/Unity XT OE (5.2.0.0.5.173)

EMC has released new OE (5.2.0.0.5.173) for Unity/Unity XT storage array family with new major changes. The new release also contains lots of resolved issues for different components. The biggest changes are “Data Reduction and Advanced Deduplication” can now be enabled for hybrid storage pools and also dynamic pools will be expanded faster than before.

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Data Center / Data Storage / Reviews

Parallel NFS (pNFS) – Part 1 (Introduction)

Parallel NFS (pNFS) is a part of the NFS v4.1 standard that allows compute clients to access storage devices directly and in parallel. The pNFS architecture eliminates the scalability and performance issues associated with NFS servers deployed today. This is achieved by the separation of data and metadata, and moving the metadata server out of the data path.

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Data Storage

EMC Unity Host Group, Finally Came!

EMC Unity array was released in 2016 to replace VNX and VNXe family with another mid-range array solution. EMC Unity came with lots of new features and enhancements compare to older families but there was an absent feature that VNX offering. Host access method was changed and each LUN should have been present to each host separately. More than 4 years from GA release, we were waiting for changing host access method because presenting LUN to each host was horrible in large scale environment with many hosts and LUNs. Biggest Change In EMC Unity OE 5.1.0.0.5.394 Previous versions have “Consistency...

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Data Center / Data Storage / Virtualization

Enabling Business Continuity By Unity XT Metro Node

Unity XT storage arrays are designed for performance, optimized for efficiency and built to work in multi-cloud environment. Actually Unity XT storage array is mid-range storage array family but this family is capable for enterprise workloads. Enterprise businesses needs protection and needs business continuity solutions. Typically, mid-range storage array has no native business continuity solution but Unity XT offers Unity XT Metro Node as business continuity solution.

EMC Unity 3

Data Center / Data Storage / News

Dell EMC Unity OE 5.0.2.0.5.009

EMC has released new upgrade file for Unity family (5.0.2.0.5.009) but I couldn’t find Release Notes link till now. Seems, the upgrade file is contains some minor fixes and security fixes as well. (Now I know that some issues were major!) The file size is as big as previous releases, but as I know, the below security issues have been fixed on this release. (Thanks to “derWolle“, I don’t know him but he has read the post and sent me the link of release notes: https://support.emc.com/docu97010_Dell-EMC-Unity-Family-5.0.2.0.5.009-Release-Notes.pdf?language=en_US Seems, there is new feature and important fixes: Initially Configuring your Unity syste: When...

EMC Unity 1

Data Center / Data Storage / News

Dell EMC Unity OE 5.0.1.0.5.011

Yesterday, EMC has released new Operating Environment (OE) for Dell EMC Unity family. The new release includes lot of fixes and especially security vulnerability (CVE-2018-19636 – CVE-2018-19637 – CVE-2018-19638 – CVE-2018-19639 – CVE-2018-19640). There is just one new feature for Unity VSA, a new variant of the UnityVSA called the Dell EMC Unity Cloud Edition is now available, which is optimized for the VMC (VMware Cloud) on AWS. Also the UnityVSA Deployment Utility will only be available for Windows 64-bit environments with releases 5.0.1 and later. Here is the fixed issues in Unity OE 5.0.1.0.5.011: External Links EMC Downloads