dmx-3 Archives – Gestalt IT

EMC Symmetrix: VCMDB and ACLX

March 29, 2010 By Devang Panchigar Leave a Comment

If you work with EMC Symmetrix systems, you know the importance of VCMDB. Introduced with Symmetrix 4.0 and used in every generation after that, VCMDB stands for Volume Control Manager Database). Also in the latest generation of systems the VCM device is at times also referenced as VCM Gatekeeper.

Filed Under: Storage Tagged With: 6 cylinder, 96 cylinder, Access Control Logix, Access Logix Clariion, ACLX, channels, DMX, dmx-3, dmx-4, DMX2, EMC Symmetrix, ESN Manager, Fibre, fibrepath, HBA, Host, hypers, Ionix Control Center, iSCSI, SFS Volumes, SMC, solutions enabler, splits, SYMAPI, Symcli, Symmetrix File System, V-Max, VCM, VCM Edit Director Flag, VCM Gatekeeper, vcmdb, Volume Control Manager Database, Volume Logix

Symmetrix: The Journey of 20 Years

December 21, 2009 By Devang Panchigar Leave a Comment

So this year will mark the history of the Symmetrix products, 20 years since its inception and the Symmetrix has come long ways. Initially released in 1990, today’s Symmetrix does not come any close to what the product was 20 years ago. The underlying code (Enginuity) is what drives and gives the Symmetrix its personality. Symmetrix was a compute / storage beast 20 years ago and so it is today.

Filed Under: Storage, Tech Tagged With: DMX, DMX-2, dmx-3, dmx-4, EMC, Enginuity, Symmetrix, Symmetrix 3.0, Symmetrix 4.0, Symmetrix 4.8, Symmetrix 5.0, Symmetrix 5.5, V-Max

EMC Symmetrix, 20 Years in the making

July 30, 2009 By Devang Panchigar 2 Comments

So next year will mark a history of Symmetrix Products within EMC, still classified as one of the most robust systems out there after 20 years of its inception. In this blog post, we will talk about some facts on Symmetrix products as it relates to its features, characteristics, Enginuity microcode versions, model numbers, year released, etc.

Filed Under: Featured, Storage Tagged With: Barry Burke, Celerra, Centera, Cisco, CLARiiON, cloud storage, Data General, DMX, DMX-2, dmx-3, dmx-4, Documentum, EMC, Enginuity Code, ESCON, FC, fiber drives, FICON, Flash drives, Gestalt IT, HP, IBM, ICDA, Jewel of EMC, Joe Tucci, Legato, microcode, modular power, Moshe Yanai, NDU, PowerPath, RAID 6, raid xp, RAID-5, RSA, RSF, RVA, SATA, Slice directors, SRDF, Symmetrix, Symmetrix 1.0, Symmetrix 2.0, Symmetrix 2.5, Symmetrix 3.0, Symmetrix 3000, Symmetrix 4.0, Symmetrix 4.8, Symmetrix 5.0, Symmetrix 5.5, Symmetrix 5000, Symmetrix 6.0, Symmetrix 6.5, Symmetrix 7.0, Symmetrix 8000, Symmetrix DMX, Symmetrix V-Max, Technology, TimeFinder, UCS, Unisys, V-Max SE, V-Sphere, Virtual LUN Technology, Vision, vmware

EMC Symmetrix DMX device type, COVD: Cache Only Virtual Device

July 3, 2009 By Devang Panchigar Leave a Comment

Here is some information on Cache Only Virtual Devices. I do not have a very clear picture on the overall operation of this device type, but from a high level it can be summed up as following based on it characteristics.

Filed Under: Storage Tagged With: 5671, 5771, 5773, Cache only Virtual Devices, DMX, dmx-3, dmx-4, EMC, microcode, SRDF/A, Symmetrix

Expectations with new Generation of DMX Technology

February 26, 2009 By Devang Panchigar Leave a Comment

There has been a big chatter about the next generation of EMC machines. After the initial release of DMX-3’s in 2005 and then the DMX-4’s in 2007, next generation DMX is almost due now. Here is my wish list or expectations on the new DMX Platform.

Filed Under: All, Storage Tagged With: BCV, Celerra, CLARiiON, cost, deduplication, DMX, dmx-3, dmx-4, DMX-5, ECC, efficiency, EMC, flash, iSCSI, management, performance, RAID, RAID-DP, RAID-S, SATA, Symmetrix