講義參考文稿1

1、Identity and Resource PoolsImplementation of Server ResourcesObjectivesDescribe the purpose and use of Mobile Service ProfilesDescribe MAC addresses and poolsDescribe the format and use of world wide namesDescribe the purpose and use of universally unique identifiersDescribe server pools and how the

2、y are usedMobile Service ProfilesTo simplify Mobile Service Profiles, use pools of identifiers:Universally unique identifier (UUID) pools are used for compute node BIOSMAC pools are used for vNICsWorld wide name (WWN) pools are used for vHBAsPools for Mobile Service ProfilesWWN PoolUUID PoolMAC Pool

3、OUIs and Hardware IdentifiersOrganizationally unique identifiers are used by hardware manufacturers in the generation of MAC and WWN addressesAssigned by IEEEIn binary, first octet of IEEE OUI will always end in 00 or 01:If first octet ends in 10 or 11, address is locally assignedBinaryHexadecimal00

4、00 0010020000 0110060000 10100AMAC AddressesMAC Address FormatMAC addresses are 48-bit addressesEUI-48 standard:YY:YY:YY:ZZ:ZZ:ZZYY:YY:YY = OUIZZ:ZZ:ZZ: = organizationally assignedExample: 00:25:B5:1a:26:e100:25:B5 is an OUI assigned to Cisco Systems, Inc.1a:26:e1 is a specific hardware device assig

5、ned by CiscoMAC Address ConsiderationsMAC addresses should be globally uniqueCisco UCS Manager enforces a Cisco OUI of 00:25:B5Possibly encode meaning into fourth octet, such as Cisco UCS deployment, data center, etc.By using 2 octets (16-bits), 32,767 possible MAC addressesExample: Data Center 1, C

6、isco UCS Deployment 4 might use 00:25:B5:14:00:00 to 00:25:B5:14:FF:FFEasily distinguish location of MAC address, guaranteed uniqueness within organizationCreating MAC PoolsCreate a named MAC pool under the desired organizationPools will be available to all children organizationsCreating MAC Pools (

7、Cont.)Remember not to create more objects than necessaryYou can always add additional blocks laterWorld Wide NamesWWN FormatWWNs are 64-bit addressesStandard format:10:00:YY:YY:YY:ZZ:ZZ:ZZExtended format:2X:XX:YY:YY:YY:ZZ:ZZ:ZZX = Organizationally assignedYY:YY:YY = OUIZZ:ZZ:ZZ = organizationally as

8、signedWWN Pool ConsiderationsWWNs should be globally unique mend creating locally-administered OUI Possibly encode meaning into first octet of organizationally assigned field, such as with MAC addressesWWNN should be distinguishable from WWPNWWNN might use 20:01:02:00:00:XX:XX:XXWWPN might use 20:00

9、:02:00:00:XX:XX:XXPools may only use the 20:XX:XX:XX:XX:XX:XX:XX formatWWNN PoolWord wide node names are assigned on a per-Service Profile basisCreate a named pool using process similar to that used to create MAC poolsWWNN PoolDont create too large a poolYou can always add additional blocks laterWWP

10、N PoolWord Wide Port Names are assigned on a per vHBA basisCreate a named pool in a manner similar to the process for creating WWNN poolsWWPN PoolDont create too large a poolYou can always add additional blocks laterAdding Initiator ConfigurationProcess is the same for WWNN or WWPNAllows for granula

11、r control of boot configuration based on assignment of WWN assigned:If assigned to a particular WWN, use specific boot targetMost environments will base storage configuration on WWPNAdding WWN InitiatorBinds a specific WWN to boot configurationUseful if storage array requires specific boot targets,

12、depending on source WWNUniversally Unique IdentifiersUUID UsageUUIDs are essentially standardized serial numbers that identify a particular serverTraditional servers have a hardware UUID stored in the system BIOSOperating systems and software licensing schemes may use the UUID to detect if they have

13、 been moved between physical serversUCS allows for the manual or automatic assignment of UUIDs to enhance mobility of operating systems and applicationsUUID FormatUUIDs are 128-bit numbers, expected to be globally uniqueMany schemes exist to define or generate the UUIDCisco UCS Manager uses a config

14、urable 64-bit prefix and allows administrator to specify range of suffixes for use by compute nodes mend setting prefix to same 24-bit OUI as used in WWN pools, and pad as necessaryCreating UUID PoolsSet a name, optional description, and prefix for the poolAll UUIDs assigned from pool will begin wit

15、h prefixCreating UUID Pools (Cont.)Dont create too large of a blockLarge blocks add unnecessary overhead and size to databaseServer PoolsServer PoolsManually populated or auto-populatedBlade server can be in multiple pools at same timeAssociate Service Profile with pool:Compute node selected automat

16、ically from poolWill only select blade server not yet associated with other logical server, and not in process of being disassociatedPool DevPool QACreating Manual Server PoolSet a name and optional description for the poolSelect compute nodes to be added to poolCreating Manual Server Pool (Cont.)Cr

17、eating an Auto-Populating PoolCreate empty server poolCreate server pool qualificationMix and match various criteria:Chassis slotsCPU/RAM, and so onCreate a Server Pool Policy:Associates the qualification policy to a specific poolAuto-placement of compute node in pool happens at discovery time:Previ

18、ously discovered compute nodes can be re-acknowledged, to be placed in poolCreating Server Pool QualificationCreating Server Pool Qualification (Cont.)This example requires an adapter capable of FCoEMultiple qualifications can be combined in the same policyCreating a Server Pool PolicyA Server Pool Policy links a Server Pool Qualification to a specific target poolMatching nodes are added to pool at discovery timeSummaryPools of UUIDs, MAC addresses, and WWNs can be used to facilitate compute node deployment and mobilit