Category: Data Storage


Linux Deduplication and Compression

Cost of storage is the biggest piece of IT budget in any company (Of course not EMC, HPE or other like them 😀 ) and the storage spaces is eating by databases, other data files and backup files as well. Lot of those data file not be used once generated!. I have serious issue with these types of data and especially log files that one of dark data types. I can’t stop generating those data and the related teams are always crying about free space on their servers. They want just Linux servers (Seems, they don’t know Windows has NFS...

EMC Unity 0

Some Lower-End Unity Models Could Experience Single or Dual SP Reboots When Running Unity OE 5.0

This is warning and workaround about EMC Unity OE 5.0 on some Unity systems with fewer memory capacity. Let’s see what happened? The lower-end Unity systems, in particular the Unity 300 and 300F, contain less physical memory than the higher-end Unity models.  The lower available system memory makes them more vulnerable to experience an SP reboot brought about by the “mergelogs” component of NGTRiiAGE which is run by uDoctor on SRS enabled arrays.   It is also run periodically on non-SRS enabled arrays. If your Unity system is SRS enabled, “mergelogs” will run at least once per day. Changes intro-duced in...

STOR2RRD Schema 0

Stor2rrd 2.60 Will be Released Mid of September 2019

Stor2rrd is my favorite storage monitoring tool, it’s free and has active community. New version (2.60) with some new features will be announced mid of September. Let’s review new features and enhancements in Stor2rrd 2.60 . What’s New in Stor2rrd 2.60? Stor2rrd 2.60 will support two new storage devices from Lenovo and Hitachi products: Hitachi NAS Platform (HNAS) Lenovo ThinkSystem DE Series (DE2000/4000/6000) Stor2rrd does support more than 40 storage systems in new version. Enhancements in Stor2rrd 2.60 Stor2rrd 2.60 is including the below enhancements: Storage access management is done through UI only ACL: introduced read-only role, members can see...

Dell EMC Unity XT 0

What’s Dell EMC Unity XT Storage?

Simplify the path to IT transformation and unlock the full potential of your data capital with the new Dell EMC Unity XT
storage arrays that feature up to 2X more IOPS, more memory, and up to 50% more drives than previous Dell EMC
Unity models. These All-Flash and Hybrid storage systems with dual-active controller architecture and enterprise-class
features are designed for performance, optimized for efficiency with up to 5:1 data reduction, and built to simplify your
multi-cloud journey.

EMC Unity Unwanted Initiators 4

How to Remove Unwanted Initiators in EMC Unity

EMC Unity family is successor to EMC VNX family and EMC Unity is more powerful than VNX series. In addition of technology changes, EMC Unity using different UI and different commands. Also there is big differences between some operations on VNX and Unity such as present LUN to host/hosts. If you want to remove initiators from host/hosts, follow the post to find best way to do it. Remove Unwanted Initiators Same as VNX, there is two options to register initiators as a host or to the host: Automatically via agent Manual We could remove unwanted initiators easily from storage system...

EMC Unity 0

Dell EMC Unity Family Version

Dell EMC has been released new version of Unity Operating Environment (OE) for Dell EMC Unity family. The new version ( is included new features and fixes to improve Unity products stability, performance and deliver some solutions as new features. This new release is a minor release, so there is no fundamental changes.

VNX Domain - Unverified Systems 2

How to Remove Unverified System in VNX Domain

VNX Storage arrays can be added to a domain for centralization logging and management for multiple storage arrays. Also Unisphere Central can be added to a VNX domain.

Sometimes, storage administrator makes mistake about adding or removing VNX storage arrays from VNX domain. As an example, administrator has to remove a VNX for send to repairing but forget removing storage array from domain. Another example, when there is multiple domains with multiple range of IP addresses, may be administrator add array to domain wrongly and after that, change IP and add to another domain.

In these situations, domains will contain some systems as unverified system, the unverified systems should verify again and otherwise should be removed.