Term
| Do CLARiiON Storage Processor port names change if components are replaced? |
|
Definition
| No. SP port names are dynamically assigned. |
|
|
Term
| What is the VCMDB and where is it stored? |
|
Definition
| Volume Control Manager Data Base contains records specifying which devices may be accessed by a particular HBA through Symmetrix FC port. By default, access to VCMDB is granted to all HBAs that log into an FA port. |
|
|
Term
|
Definition
| Logical pathing to partition a FC fabric into members (HBAs / ports) |
|
|
Term
|
Definition
| Attached adapters that can be included in zone. They include HBAs and storage ports. |
|
|
Term
| What is a zone set / zone configuration? |
|
Definition
| Group of zones that you can activate or deactivate on a fabric. Only one zone can be acctive at one time per fabric. |
|
|
Term
| What are 3 types of zoning? |
|
Definition
1) port zoning (physical topology: uses domain ID and port # of switch)
2) WWN zoning (WWN of nodes)
3) Mixed port / WWN Zoning |
|
|
Term
| What is an oversubscription ratio? |
|
Definition
| Dealing w/ ISL, # of nodes / ports that content for its bandwidth |
|
|
Term
| What does the number of ISLs depend on? |
|
Definition
| Availability (provides redundant paths to carry switch traffic) and accessibility (provides bandwidth resources needed to support the host application) |
|
|
Term
|
Definition
| Fabric topology. All switches are connected to each other. There is only 1 hop between source and destination. |
|
|
Term
|
Definition
| Fabric topology design where in storage ports are connected to "core" switches, which are in turn connected to edge switches (via ISL) which are connected to HBAs. |
|
|
Term
| What is a domain as it relates to a fabric? |
|
Definition
| unique numeric identifier for each switch in the fabric? |
|
|
Term
| What is the role of a principal switch? |
|
Definition
| Switch responsible for distributing Name Server information throughout the fabric. |
|
|
Term
|
Definition
| Access method to a SAN. Includes: IP network, serial port connected to terminal server, and SNMP using platform specific MIB. |
|
|
Term
|
Definition
| Access method to SAN. Fibre Channel (fabric discovery) and storage management |
|
|
Term
|
Definition
| Storage Management Initiative is the 1) integration of diverse multivendor storage networks 2) development of more powerful management apps 3) common inteface for vendors to develop products that incorporate the management interface topology. Created by Storage Networking Industry Association (SNIA). |
|
|
Term
| What are the switch embedded web UI for McData, Brocade, and Cisco? |
|
Definition
McData Embedded Web Server
Brocade Web Tools
Cisco Fabric Manager |
|
|
Term
| What is an example of switch management software? |
|
Definition
| McDATA Connectrix Manager. Installed on Service processor or standalone PC. |
|
|
Term
| What are the members of the EMC ControlCenter Family? |
|
Definition
| Storage Scope, Workload Analyzer, SAN Manager, SAN Architect, Automated Resource Manager (ARM), Symmetrix Manager / Optimizer, Navisphere Suite |
|
|
Term
| What are the 6 phases of the SAN Design Lifecycle? |
|
Definition
1) Data collection (for next 18 mos)
2) Data analysis
3) Architecture development
4) Prototype and test
5) Release to production
6) Maintenance |
|
|
Term
| What are some of the topics covered during Management Platform? |
|
Definition
| IP connectivity: directors / switches, static IP addresses for all systems, director / switch connectivity to connectrix enviroment
SAN Connectivity to management station: Direct in-band access and via a host a host based proxy agent |
|
|
Term
| Does EMC support in-band or out-band management? |
|
Definition
| Out-band. ECC cannot handle in-band management. |
|
|
Term
| How do you plan for out-of-band management? |
|
Definition
1) public / private networks
2) use SNMP (Simple Network Management Protocol)
3) Password management
4) Close non-essential IP ports |
|
|
Term
| What is the fan-out ratio in storage consolidation? |
|
Definition
| Qualified maximum number of initiators that can access a single storage port through a SAN |
|
|
Term
| What is the expansion fan-in ratio? |
|
Definition
| Qualified maximum number of storage ports that can be accessed by a single initiator through a SAN |
|
|
Term
| What type of switches are used in the Edge tier? |
|
Definition
|
|
Term
| What type of switches are used on the Core / Backbone Tier? |
|
Definition
| Enterprise Directors. Ensure highest availability to fabric. |
|
|
Term
| What is the maximum number of switches in an EMC fabric? |
|
Definition
|
|
Term
| What type of fabric mode must switches be set to? |
|
Definition
|
|
Term
| What are two programs you may use to activate a zone set? |
|
Definition
| Connectrix Manager or SAN Manager |
|
|
Term
| ISL Trunking is supported by what type of switches? |
|
Definition
| B-Series and MDS-Series (Cisco); not M-Series |
|
|
Term
| What is the best program for storage port performance analysis? |
|
Definition
|
|
Term
| What is the best program for performance statistics? |
|
Definition
|
|
Term
| What is the best program for Threshold Alert analysis? |
|
Definition
|
|
Term
| How many FA groups are allowed per ISL? |
|
Definition
| 2 FA groups per ISL; FAs tend to dominate bandwidth. |
|
|
Term
| How many RDF (Resource Description Framework) ports allowed across a single ISL? |
|
Definition
| 2 FC RDF ports allowed across a single ISL. |
|
|
Term
| How many buffer-to-buffer credits can each port have on an M-series long wave support? |
|
Definition
| 60 buffer-to-buffer credits on M-series long wave support |
|
|
Term
| Which switch requires a license to extend fabrics for additional buffer credits? |
|
Definition
|
|
Term
| What are the possible distances allowed for optics between switches? |
|
Definition
|
|
Term
|
Definition
| Dense Wave Division Multiplexing is a protocol method of sending data using different wavelengths of light over a fibre optic cable. |
|
|
Term
|
Definition
| Fabric Shortest Path First. Algorithm shaping traffic management on switches. Takes shortest route first. |
|
|
Term
| What are the BB_credits for shortwave and longwave lasers on McData switches? |
|
Definition
| 16 by default for shortwave laser and 60 for longwave |
|
|
Term
| What is required to log into EMC Connectrix Manager? |
|
Definition
| 1) Username
2) Password
3) IP of Service Processor
Install program by putting IP of SP in browser |
|
|
Term
| What are the 4 alert levels for Connectrix Manager? |
|
Definition
1) Green circle = no failures
2) Yellow triangle = component failure
3) Red diamond = non-redundant failure
4) Grey square = network connection bwtn CMS and switch is lost |
|
|
Term
| For an M-Series zone, what is the maximum numbers of zones and zone sets per library? |
|
Definition
| 64 Zone sets in a library. 1024 maximum zones for Zone Set. 1 library per laptop. |
|
|
Term
| For Connectrix B-Series Switch CLI, what shows port info? |
|
Definition
|
|
Term
| For Connectrix B-Series Switch CLI, what shows NameServer contents? |
|
Definition
| "nsShow" gives nameServer content for B-series switches |
|
|
Term
| For Connectrix B-Series Switch CLI, what shows switch info? |
|
Definition
| "switchShow" gives switch info for B-Series switches |
|
|
Term
| What are some Zoning Telnet Commands? |
|
Definition
| zoneShow, zoneAdd, cfgAdd (adds zone to zone config), cfgSave (saves defined config to all switches in fabric across reboots) |
|
|
Term
| Firmware may be obtained via these 2 methods. |
|
Definition
|
|
Term
| What are some Cisco switch EXEC Mode CLI commands? |
|
Definition
| cd, copy, delete, dir, mkdir, move, rmdir, show |
|
|
Term
| What are some Cisco switch Config Mode Commands? |
|
Definition
interface (selects interface to config)
vsan (enter vsan config mode)
zone (zone configuration commands)
zoneset (zoneset configuration commands) |
|
|
Term
| What are some commands to show state of MDS switch / director? |
|
Definition
show module
show version
show environment
show interface brief
show fcns database
show flogi database
show zoneset active
show vsan members |
|
|
Term
|
Definition
| Symmetrix Application Programming Interface. Allows in-band communication to Symm SP via a GK (gatekeeper). |
|
|
Term
|
Definition
| Scans internal system to see what is currently mapped |
|
|
Term
| What does "symcfg discover" do? |
|
Definition
| Updates symapi database from Symmetrix. Run it whenever storage is added / removed, change space, or FA configs. |
|
|
Term
| What are some Symmask commands? |
|
Definition
SYMMASK:
add devs
replace
refresh |
|
|
Term
| What are PowerPath Load Balancing Policies? |
|
Definition
Symm_opt/CLAR_opt (default) (host based priority)
Round Robin
Least I/Os (fewest I/O)
Least Blocks (smallest # of MB)
Request (failover)
No Redirect (no load bal / failover)
Basic failover (no load bal) |
|
|
Term
| What is the function of the EMC ControlCenter Server? |
|
Definition
| Services Console data requests |
|
|
Term
| What is the purpose of ControlCenter's Repository? |
|
Definition
| Database containing current / historical data about storage and Control Center. modified version of Oracle 9i |
|
|
Term
| What is the purpose of the ControlCenter store? |
|
Definition
| writes data collected by Agents to Repository |
|
|
Term
| What is the purpose of the Master Agent? |
|
Definition
| Manages individuals Agents. Installed on each Agent host. |
|
|
Term
| What is the purpose of the ControlCenter Agents? |
|
Definition
| Manage and monitor specific objects (ie: Symm storage arrays, FC switches) |
|
|
Term
| What EMC ControlCenter applications require license keys? |
|
Definition
| SRDF/TimeFinder, Workload Analyzer, SAN Manager, and Optimizer |
|
|
Term
| What are the 3 tiers of ControlCenter? |
|
Definition
1) Console: console
2) Infrastructure: server, repository, store(s)
3) Agent: agents and master agents |
|
|
Term
| What is the FibreZoneBridge / Connectrix Bridge used for? |
|
Definition
| On each Service Processor controlling M-Series Connectrix Switches. Installed on same computer that has DSM Connect. |
|
|
Term
| McData switches require these to login. |
|
Definition
Service Process IP Address
and WWN |
|
|
Term
| Brocade switches require these to login. |
|
Definition
|
|
Term
|
Definition
| EMC's way of zoning. CLI for hetereogeneous switch zoning management |
|
|
Term
| What are the FibreZone Entities in order? |
|
Definition
1) Member
2) Zone
3) Zone_set
4) Unit (enabled on fabric) |
|
|
Term
| How do you create a member using "fzone" ? |
|
Definition
| fzone member -create -name [NAME] -wwn [wwn of FA port using colons] |
|
|
Term
| What Visual SAN components require a license? |
|
Definition
| Performance Manager, Configuration Manager, SAN Assistant, Support Center. [Network Manager is used for zoning and is free.] |
|
|
Term
| Visual SAN Configuration Manager shows what? |
|
Definition
| add-on app. viewing SAN changes / configurations. Config Management tools for comparison, historical reference, change management, asset management, and replication. Can create point-in-time configuration captures. |
|
|
Term
| What is Visual SAN Network Manager? |
|
Definition
| Base component allowing for SAN management / monitoring. Version 4.0+ allows emailing configurations to support center using Support Link. |
|
|
Term
| Visual SAN's SAN Assistant does what? |
|
Definition
| Provisions storage. LUN Masking / virtualization of SAN. Enables user to create path bwtn host and storage system by creating LU masks that enable authorized HBAs to access specified drives on storage ports. [Only works with Brocade and CLARiiON.] |
|
|
Term
| What does Visual SAN Performance Manager (PM) do? |
|
Definition
| Add-on app. Delivers real-time and historical performance monitoring of SANs. Has alert generation. Renders data in visual format. Offers real time graphs / thresholds. |
|
|
Term
| Visual SAN's Support Center offers: |
|
Definition
| Runs at EMC Support Center and has database that support techs access thru web client. Compares customer configurations. Imports 3 captures (baseline, updated baseline, and problem) along with modification events. Techs compare using topology map, detail tree, and modification history. |
|
|
Term
| What does the Discovery Engine Service do? |
|
Definition
| Discovers all SNMP devices and communicates them to Device Manager Service / Client Service. |
|
|
Term
| What does Event Queue Service do? |
|
Definition
| Offers centeral service for all posted events. Logs all events to database. Central service for event delivery to client processes. |
|
|
Term
| What does the Device Manager Service (DMS) offer? |
|
Definition
| Windows service containing all individual Device Manager objects. DMS loads devicemgr.properties file |
|
|
Term
| What do the VisualSAN Agents do? |
|
Definition
| Report connectivity info to VisualSAN Server. They are SAN attached. Can have Windows, Solaris, and Linux based agents. Used for reporting only, cannot run application on remote machine |
|
|
Term
| On a M-Series switch, how is the FC address determined? |
|
Definition
Domain ID = domain ID + 60 Hex
physical port = port number + 4
AL_PA = 13 (indifferent) |
|
|
Term
| On a B-Series switch, how is the FC address determined? |
|
Definition
Domain ID = face value
port = 1st digit = area
2nd digit = port
AL_PA = 00 (indifferent) |
|
|
Term
| What do the switch priorities of 1, 2, 254, and 255 mean? |
|
Definition
1 = always priority
254 = default for M-series
255 = never priority
2 = static for B-Series |
|
|
Term
|
Definition
|
|
Term
| What information is passed during FLOGI? |
|
Definition
| WWN, S_ID, Protocol, Class, Zoning. N_Port to F_Port |
|
|
Term
| What information is passed during PLOGI? |
|
Definition
| WWN, S_ID, ULP, Class, BB Credit. N_Port to N_Port |
|
|
Term
| What information is passed during PRLI ? |
|
Definition
| LUN #. Communicated by the ULP (SCSI-3 to SCSI-3) |
|
|
Term
| When do should you use EMC Control Center? |
|
Definition
| Single management view of all devices in environment. Ongoing and long-term management |
|
|
Term
| When should you use Web GUI? |
|
Definition
| Diverse environments and limited access |
|
|
Term
| When should you use a dedicated application, such as Connectrix Manager? |
|
Definition
| For unrestricted access and management |
|
|
Term
| On a M-Series switch, why is the default zone a bad thing? |
|
Definition
| All ports not already in a zone "see" each other |
|
|
Term
| What is SYMCLI Device Masking? |
|
Definition
| centralized CLI for configuring access to and overall configuration of arrays. Grants access to all HBAs that log into Fibre director port where the database is configured. Requires a Symmetrix, Host-based software, and FC |
|
|
Term
| What are some of the licensed feature-sets of Solutions Enabler? |
|
Definition
| EMC ControlCenter, SYMCLI, SRDF, TimeFinder, Configuration Manager, EMC Data Manager (EDM), InfoMover, Replication Manager, StorageScope, AS/400 SRDF/TF Manager, Celerra SRDF/TF Manager, GeoSpan, ResourcePak, Symmetrix Data Mobility Manager (SDMM) |
|
|
Term
| What is the Solutions Enabler Database? |
|
Definition
| Database is host and OS indepedent. Can be transferred using FTP. Updated with "symcfg discover" (Discovers Symmetrix Systems) |
|
|
Term
| What are some commands to report on Symmetrix Configuration? |
|
Definition
SYMCFG:
symcfg -fa all list = Director info
symcfg -ra all list = Director info
symcfg -fa all -address -available list = list available addresses
symcfg -application list = list applications using Symmetrix
symcfg -connections list = list host connections to the array |
|
|
Term
| What is the command to backup / restore? |
|
Definition
Symmaskdb backup
Symmaskdb restore
Symmmaskdb list database |
|
|
Term
| What does the EMC ControlCenter Navisphere CLI/Manager do? |
|
Definition
| Manages storage system, Manages RAID Groups, Manages LUNs, Manages Storage Groups |
|
|
Term
| What does the EMC ControlCenter Navisphere Java CLI do? |
|
Definition
|
|
Term
| Do you manage switches with out-band or in-band? |
|
Definition
|
|
Term
| What are the Fabric Topologies? |
|
Definition
| Mesh, Core/Edge, Compound Core/Edge, Complex Core/Edge |
|
|
Term
|
Definition
| Fast protocol. Serial connectivity. |
|
|
Term
| How many bits are in a WWNN? WWPN? Fabric WWN? |
|
Definition
|
|
Term
|
Definition
| Host logs into switch (N_Port to F_Port). Talks to Login Server and Name Server (Fabric Server). Host sends ALPA and receives domain and port to make FC Address. |
|
|
Term
| What is DevMask used for? What program allos you to DevMask? |
|
Definition
LUN Masking with Symmetrix
SYMCLI, Control Center (StorageProvisioning),SymMask |
|
|
Term
|
Definition
| port to port. Port Zoning. Switch port to Switch port. |
|
|
Term
| What type of zoning does EMC prefer? |
|
Definition
| Softzoning. WWPN Zoning. WWPN of FA and WWPN of HBA |
|
|
Term
| What are the ways to manage McDATA switch? |
|
Definition
| Connectrix Manager, Embedded Web Server (EWS), telnet |
|
|
Term
| What are the ways to manage Brocade switch? |
|
Definition
| WebTools and telnet (IP /username /password) |
|
|
Term
| What switches allow for secure management? |
|
Definition
| MDS-series (Cisco) offers ssh |
|
|
Term
| How can you restrict access on FA port? |
|
Definition
Symmask
V-Bit (flag) must be set on switch via commandline or bine file change |
|
|
Term
| What command would you use to connect a NT, Celerra, and HP-UX to the same FA port? |
|
Definition
| Hetereogeneous command for SymMask |
|
|
Term
| What does SymMask setVisibility do? |
|
Definition
| allows HP (10.2 and older) server to see non-contiguous |
|
|
Term
| What are the commands to delete, backup, and restore a symmetrix database? |
|
Definition
| symmaskdb init -> deletes
symmaskdb backup
symmaskdb restore |
|
|
Term
| What allows SAN Manager and FZone to talk between EMC and M-Series switches? |
|
Definition
| DSM Connect and FibreZone Bridge / Connectrix Manager |
|
|
Term
| How do you connect to MDS-Series switch? |
|
Definition
|
|
Term
| When you send a frame from host to Symmetrix FA port, how do you ensure that frames don't bounce around in the switch? |
|
Definition
| Use: Target address (D_ID) and Source (S_ID), TTL, ED_TOV (ErrorDetect_TimeOutValue),RA_TOV (Resource Allocation_TimeOutValue). FC ID is made from D_ID and S_ID |
|
|
Term
| What does the Connextrix Manager run on? What switch series does it work with? |
|
Definition
| Install Connectrix Manager on host. Only works with McDATA switches. |
|
|
Term
| What are the two pieces of software that run on Connectrix? |
|
Definition
| Fabric: Topology and Zone Set (shows blue plug)
Hardware: Hardware, Port List, Node List, Performance FRU List |
|
|
Term
| How do you get the McDATA FC Address? |
|
Definition
| Domain ID + 60 -> hex
Port Address + 4 -> convert to hex
13 |
|
|
Term
| If you want to allow a manager to view a Old Volume Logix, what do you offer? |
|
Definition
| ROFPath (Read Only FPath) |
|
|
Term
| What does the FCC Agent do? |
|
Definition
| Names switches. ie: Cisco, requires IP/un/pw |
|
|
Term
| What are the 2 major zone sets? |
|
Definition
|
|
Term
| If you want to bring zoning info from Repository to switches, what command do you use? |
|
Definition
|
|
Term
| What command do you use when you bring zoning information from repository into switch? |
|
Definition
|
|
Term
| How do you monitor performance on CLARiiON? |
|
Definition
| Navisphere Performance Analyzer |
|
|
