Terms
MMCS - Management Module Control Station, embedded Windows (VMAX3 / PowerMAX)
Inlines - OS language of the Symmetrix, embedded within SymmWin / Simplified SymmWin
Simplified SymmWin - All component replacements (VMAX3 & PowerMax)
SymmWin - All powerful management application
SP - Service Processor, embedded Windows (VMAX2)
Guest OS
Tools OS
Unisphere - Can be used for troubleshooting, can be launched internally
Gatekeeper - small device used to allow host communication to storage platform - through SILS
SILS - Symmetrix Interface Layer
BIN file - Internal configuration file of the system - Early Symms bin files were static. Dynamic config changes can be down with newer systems. Done through host based tools. SymmConfig through Solutions Enabler or Unisphere
EBC Scans - Data Inconsistency
FAST - Fully Automated Storage Tiering
META - Group of Symm devices, like a cluster, used in pre VMAX3 models. Open systems Meta and Mainframe Meta
D@RE - Data at Rest Encryption - Hardware-based, on-array encryption
Non-Disruptive Migration - NDM - Data migration from VMAX1/2 to VMAX3 or PowerMax
Embedded NAS - eNAS - Embedded file services,
Performance Tuning - System optimization
Symmetrix Remote Data Facility - SRDF / RDF - Remote Replication
TimeFinder - Local replication
Open Replicator - Online migrations
Frontend - FE - connects hosts to the system
Backend - BE - connects the physical drives
Host Writes - all host writes are to cache, "write pendings" are asynchronous written to disk
[[Architecture (VMAX)#Engine - Enclosure made up of two directors|Engine]] - enclosure made up of 2 directors, also called nodes or enclosures
DMX - Symmetrix DMX-3, DMX4
VMAX - 10k, 20k, 40k
VMAX2 - 100k, 200k, 400k
VMAX3 - 450f, 850f, 950f
TDAT - Backend physical disk, drive construct called a data device. Data devices form a storage resource pool
TDEV - Virtual device, the device the host sees.
Storage resource pool - Built from TDATs
DAE - Disk Array Enclosure - The thing that has the disks
DME - Disk Media Enclosure - The thing that has the disks (Powermax)
[[Vault]] Triggers - Lose certain components (multiple DA's, Power Supplies, BBUs) to which the system can not stay up with confidence or be shutdown with contents in CACHE
write folding - overwriting data in cache
seq writes - write coalescing
DMS - Direct Member Sparing - System identifies a problem drive and copies the data from that drive to a spare. Original drive will then be marked failed for replacement.
PHCO - physical inconsistency's
[[Inlines Overview]] - Command line used to manage a Symmetrix. Information gathering ( configuration / error ), hardware testing, operational utilities ( impl / online or offline directors and ports )