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October 17th, 2021 06:00
Max LUN's in a storage group Unity 650F
Subject line is the inquiry. How many LUN's can 1 host be presented in a storage group?
I checked the output on the specific array and I'm guessing 1500 since that's the output for Max LUN's and Max LUN's per pool.
Can anyone confirm?
20:00:00 service@SomeUnity650fArray spa:~/user# svc_storagecheck --list | grep -i Max_
Max_Pools : 30
Max_LUs : 1500
Max_DrivesPerPool : 750
Max_DrivesPerOperation : 750
Max_DrivesUsableForAllPools : 750
Max_LUSizeInBlocks : 549755813888 (0x8000000000)
Max_CompressLUs : 500
Max_CompressBackgroundProcesses : 10
Max_PrivateFLUs : 376
Max_LUsPerPool : 1500
Max_LUN_Shrinks : 3000
Max_LUN_Expands : 3000
Max_SliceRelocations : 3123
Max_FS_Evacuations : 3123
Max_NumberOfSnaps : 50040
Max_NumberOfUserSnaps : 14000
Max_NumberOfReplicationSnaps : 36032
Max_NumberOfNDMPSnaps : 8
Max_NumberOfSnapSourceLUs : 500
Max_NumberSnapsPerSource : 256
Max_NumberOfCGs : 1500
Max_NumberSourcesPerCG : 75
Max_NumberOfSnapLUs : 1500
Max_NumberRollbacks : 500
Max_NumberFeatureLUNs : 30
Max_NumberFeatureLUNsPerPool : 1
Max_NumberDeDupDomains : 0
Max_NumberLUsPerDeDupDomain : 0
Max_SnapSets : 50040
Max_MembersPerSnapSet : 75
Max_AliasLUs : 0
Max_DedupFSSizeInGB : 0
Max_SFSs : 90
Max_SFsPerSFS : 500
Max_SharedFolders : 1500
Max_SFSnaps : 4500
Max_SnapsPerSF : 256
Max_NumberConcurrentDedupJobs : 0
Max_ConcurrentAttachesAndDetaches : 500
Max_SnapLevel : 10
Max_ClonesPerBaseLUN : 16
Max_DerivativesPerBaseLUN : 256
Max_NFSExportsPerSF : 1000
Max_CIFSSharesPerSF : 1500
Max_CIFSSharesAndNFSExports : 2500
Max_SharedFoldersAndSnaps : 1500
DELL-Sam L
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October 18th, 2021 12:00
Hello RyanMcIntosh,
The KB that you linked is in reference to having multiple hosts connected to a single lun. For which that is 300 host connected to a single lun. Now your question of a single host how many luns can be presented to it is as many as your OS on the host allows. The Unity can present 1,500 to a single host but it is up to the os as how many it allows.
RyanMcIntosh
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October 17th, 2021 12:00
I am aware that the reverse is 300 (hosts per LUN as of 4.5) IAW KB Article Number: 000041074
DELL-Sam L
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October 18th, 2021 10:00
Hello RyanMcIntosh,
Here is a link to the support matrix for a unity 650F. If you look on page 23 it list out all the limitations. https://dell.to/3n2pHkc
RyanMcIntosh
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October 18th, 2021 11:00
That was the first thing I checked. Except none of those explicitly state what I'm asking; unless I'm not reading it correctly. Which one do you believe is the limit for LUN's presented to a single host?