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Symmetrix VMAX systems provide up to eight VMAX Engines within a system bay on standard configurations and up to four VMAX Engines on extended drive loop configurations. Each VMAX Engine includes:
Two directors that support front-end, back-end and SRDF connections. Each director has:
I/O Modules support:
Each disk array enclosure contains:
Supported Disks: 48 to 360 disks
Single V-Max Engine—two directors.
FICON, Fibre Channel, iSCSI, Gigabit Ethernet connectivity.
Up to 128 GB global memory.
Symmetrix Management Console:
The primary interface for managing Symmetrix arrays.
EMC z/OS Storage Manager (EzSM):
An Interactive System Productivity Facility (ISPF) interface that manages Symmetrix system arrays in mainframe environments.
EMC Control Center:
An intuitive, browser-based family of products that provides management of the overall storage environment, including multi vendor storage reporting, monitoring, configuration, and control.
EMC Solutions Enabler SYMCLI:
A library of commands that are entered from a command line or from a script.
EMC SMI-S Provider:
An SMI-compliant interface for EMC Symmetrix and CLARiiON arrays.
Symmetrix VMAX systems support Flash, Fibre Channel, and SATA II drives.
Simplifies provisioning of configurations with a large number of hosts by allowing the creation of initiator, port and storage groups. Auto-provisioning Groups is especially helpful in large, virtualized server environments that require the availability of many volumes to many host initiators and many storage ports.
Dynamic configuration changes:
Allows the dynamic configuration of BCV and SRDF device attributes. Decreases impact to hosts during BCV and SRDF set and clear operations.
Concurrent configuration changes:
Provides the ability run scripts concurrently instead of serially.
New Management Integration:
New Management Integration features free up host resources and simplify Symmetrix system management by allowing you to:
SRDF Extended Distance Protection (SRDF/EDP), Add and remove dynamic devices to SRDF/A (consistency exempt), Two-mirror SRDF Enginuity Consistency Assist (ECA), SRDF/Star with R22 device protection, 250 SRDF group support ,etc..
Tiered storage optimization:
Fully Automated Storage Tiering (FAST) — Reduces cost for performance, saves energy, and simplifies storage tier management by allowing the dynamic allocation of data across storage tiers, based on user defined policies and on the changing performance requirements of the applications.
Enhanced Virtual LUN technology:
Provides the ability to non disruptively change disk and protection type of a logical volume, and allows the migration of open systems, mainframe, and IBM i volumes to unallocated storage, or to existing volume.
Simplifies storage management:
Improves capacity utilization by allowing the allocation of more storage to than is physically consumed by a host at onset, and is allocated, as needed, from a shared pool.
Automates pool re balancing:
Allows users to nondisruptively balance workloads and extend thin pool capacity, in small increments if required, while maximizing performance and reducing total cost of ownership.
Yes, each session holds the different configuration change locks.
Up to four concurrent configuration change sessions are allowed to run at the same time, when they are non-conflicting. This means that multiple parallel configuration change sessions can run at the same time as long as the changes do not include any conflicts on Device back-end port, Device front-end port and on Device.
Symconfigure -sid "SymID" list -reserved.
Only Fibre and Gig-E ports on front end directors allowed.
Creating Data Devices:
Symconfigure -sid "SymID" -cmd "create dev count=16, config=2-Way-Mir, attribute=datadev, emulation=FBA, size=4602;" commit -v -nop
Creating Thin Pool:
symconfigure -sid "SymID" -cmd "create pool PoolName type=thin;" commit -nop
Adding Data Devices to thin pool:
Symconfigure -sid "SymID" -cmd "add dev 10E4:10E5 to pool PoolName type=thin, member_state=ENABLE;" commit -nop
Creating Thin Devices:
symconfigure -sid "SymID" -cmd "create dev count=16, size=4602, emulation=fba, config=TDEV;" commit -nop
Binding Thin devices to Thin Pool:
symconfigure -sid "SymID" -cmd "bind tdev 10F4:10F7 to pool PoolName;" commit -nop
The number of pools that can be configured in a Symmetrix array is 512.
This is the total number of pools, including Virtual Provisioning thin v pools, SRDF/A Delta Set Extension (DSE) pools, or Time Finder/Snap pools.
As many as data devices can be member of a thin pool, however the limit to the number of thin and data devices that can be configured within a Symmetrix system is 64,000.
Dynamic Cache Partitioning:
Allows the allocation of portions of cache to specific device groups.
Symmetrix Priority Controls:
Allows the prioritization of read I/O and SRDF/S transfers by host applications.
Optimizes performance by monitoring access patterns on storage arrays and transparently moving data between storage tiers.
Allows the movement of data between storage tiers.
Fully Automated Storage Tiering (FAST):
provides sophisticated background algorithms that can automate the allocation and relocation of data across storage tiers based on the changing performance of applications.
Storage provisioning with symaccess allows you to create a group of devices, a group of director ports, a group of host initiators, and with one command, associate them in what is called a masking view. Once a masking view exists, devices, ports, and initiators can be easily added or removed from their respective groups.
The steps for creating a masking view are:
FAST is Symmetrix software that runs background algorithms continuously analyze the utilization (busy rate) of the Symmetrix array devices.
FAST can move the most-used data to the fastest storage, such as Enterprise Flash Drives, the least-used data to the slowest storage, such as SATA drives, while maintaining the remaining data on Fibre Channel drives, based on user-defined Symmetrix tiers and FAST policies.
The objective of tiered storage is to minimize the cost of storage by putting the right data, on the right Symmetrix tier, at the right time.
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