| Question |
| How many ldom we can create in M5/M6 servers |
| Answer |
| Maximun 512 128 each in 4 physical domains |
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| Question |
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| What are main features of M5-32/ M6-32 servers? |
| Answer |
| Both are high end servers from Oracle which can support up to 32TB RAM memory for hosting databases and applications entirely in system memory. Supports 1536(M5)/3072(M6) processor threads in a 32 CPU(physical) configuration. it supports both physical domains and Logical domains(LDOMs) |
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| Question |
| Can u brief about hardware speciafication? |
| Answer |
| it contains 16 CMU(CPU memory Unit) and 4 IOU(I/O unit) Each CMU contains 2 M5/M6 CPU and 64 DIMMs. M5 is 6 core and M6 is 12 core CPU. Each core have 8 threads.16Gb and 32Gb DIMMs supported. It has redundant SPs. SP0 and SP1 |
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| Question |
| Is Solaris 10 supported on these servers? |
| Answer |
| No. Minimum supported OS version is Solaris 11.1 . But it will support Solaris 10 u11 inside LDOM guest domains in this server |
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| Question |
| M5/M6 any replacement server for existing server like m8000,m9000 server ? |
| Answer |
| M8K and M9K both are EOL now. M6-32 is the current high end server which supports both Physical and logical domains |
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| Question |
| How to check for faults from ILOM |
| Answer |
| we can check ILOM events under below path -> show/SP/logs/event/list also we can view faults from fault management shell as below ->start /SP/faultmgmt/shell shell> fmadm faulty below are some other commonly used commands -> show faulty -> show /System/Open_Problems |
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| Question |
| Can u brief on minimum resources required to create a domain |
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| Answer |
| 2 CMUs and 1 IOUs required for creating a domain |
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| Question |
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| How to create the physical domains in M5/M6 ? is it same like M-Series servers M4/5/89 K ? |
| Answer |
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| It is different procedure than M8k/M9K Here 4 CMUs and 1 IOUs are grouped together and it is called DCU(Domain configuration Unit) Physical domain can be created from 1 or more DCUs. |
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| Question |
| So we can create LDOM as well as domain both ? |
| Answer |
| Yes. it supports up to 4 Physical domains and up to 512 LDOMs |
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| Question |
| For single domain maximum capacity for memory and system board configuration deatils ? |
| Answer |
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| If we are creating single domain using all CMUs it will support 32 physical CPUs and 32TB ram |
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| Question |
| Whether Mixing of M5 and M6 CMUs allowed in the same server? |
| Answer |
| Mixing is not allowed within the CMU. however DCUs with M5 CMU can coexist with DCUs with M6 CMU in the same domain |
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| Question |
| What is DCU? |
| Answer |
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| DCU is the building block of physical domains.4 CMUs are directly connected to each other and 1 IOU forms DCU. Physical domain made from 1 or more DCUs |
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| Question |
| Provide the concept/procedure for physical domain creation? |
| Answer |
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| Already mentioned in the previous question. Totally 16 CMUs and 4 IOUs are available. in this 4 CMUs and 1 IUOs are grouped together and it is called DCU. A physical domain can be created from 1 or more DCUs. If need step by step commands I can send via mail |
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| Question |
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| These servers mangaed by XSCF or ILOM? |
| Answer |
| ILOM. ILOM in m5-32/M6-32 contains simple user visible extensions to support physical domains and redundant service processor. |
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| Question |
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| What is SPP? |
| Answer |
| SPP is service processor proxy. It is a local SP dedicated to a DCU. There are 4 SPPs 1 each for each DCU. Its purpose is to manage DCU inventory and monitor thermal and voltage events |
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| Question |
| What about hardware replacement ? can we replace motherboard online from domain ? |
| Answer |
| Yes. definitely. it supports dynamic reconfiguration. |
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| Question |
| What are the advantages of these servers compared to earlier SPARC servers? |
| Answer |
| It supports the good feature of both M series(Physical domains, redundant SPs etc.) and T series(logical domains, Multithreaded processor) servers |
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| Question |
| What about PCI’s supported in IOU? |
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| Answer |
| Each IOU having 16 PCI slots,8 hard disks per IOU,Eight 10 Gb Ethernets ports |
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| Question |
| How many physical harddisk and max capacity ? |
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| Answer |
| 32 internal disks supported supports 600GB SAS disks . SSDs are also supported |
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| Question |
| As you said both Logical and physical domains are possible in this server, does this processor has both the capabilities of multithreading (T+) and Sparc V11 processors? |
| Answer |
| M5/M6 are basically 6/12 core CPUs. Each core supports 8 threads. Since it is sun4v architecture it supports LDOMs. ILOM of these servers are customized to support physical domains. |
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| Question |
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| Can we do clustering in this logical and physical domain? |
| Answer |
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| Yes we can do clustering for both physical and LDOMs as nodes |
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| Question |
| Maximum number of domains in M5-32? |
| Answer |
| Physical domains: up to 4 LDOMs : up to 512 |
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| Question |
| Is SSB required for domain with with sinlge DCU |
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| Answer |
| For domain with only one DCU, SSB is not used. it is required only if the domain has more than one DCUs. A DCU can communicate with other DCU via SSB only |
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| Question |
| Can we hardware raid on these internal disks? |
| Answer |
| Hardware raid is not supported. |
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| Question |
| Physical domain solaris 11 zfs and same guest domain solaris 10 (u11) ufs supported or not ? |
| Answer |
| Inside guest domain we can installed Solaris 10 u11 and UFS is supported |
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| Question |
| What is the minimum hardware required for domain configuration |
| Answer |
| 2 CMUs and 1 IOUs required for domain at minimum |
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| Question |
| Can we get the console for more than one domain at same time in ilom? |
| Answer |
| yes. you need to take separate sessions below is the commands to view console -> start /HOSTx/console |
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| Question |
| How the communication between the SP and Physical domains happen? |
| Answer |
| Via internal LAN. there is 16 port internal switch for communication |
