I am moving a HPE 3par 8400 from some VMFS 5 volumes connected to some vSphere 6.7 hosts to vvols.
Right away I ran into capacity errors, even though the storage container looked to be only using 2.8TB or so at the time.
Capacity Efficiency ( from storage containers view ) 82% Savings Savings 12,719.25 GiB Used 2,856.25 GiB Usable 15,575.50 GiB 5.9:1 Overall compaction 11.3:1 Dedup ratio 7,182.60 GiB Dedup savings
I created a VV with the fc drive r5 drive type so I could move some workloads to that disk type.
when I do a showsys -space I am seeing a bunch of shared space. and I am wondering why?
when I review documentation I don't see this shared space at all...
see below.
------------ System Capacity (MiB) ------------- Total Capacity : 56729600 Allocated : 44213248 Legacy Volumes : 0 User : 0 Snapshot : 0 CPGs (TPVVs & TDVVs & CPVVs) : 32755712 Shared : 18014020 Private : 14677008 Base : 14675300 Reserved : 10816276 Reserved (vSphere VVols) : 3859024 Snap : 1708 Reserved : 1708 Reserved (vSphere VVols) : 0 Free : 64684 Unmapped : 0 System : 11457536 Internal : 367616 Admin : 337920 Spare : 10752000 Used : 0 Unused : 10752000 Free : 12513280 Initialized : 12513280 Uninitialized : 0 Unavailable : 0 Failed : 3072 ------------------ Efficiency ------------------ Compaction : 1.53 Dedup : 1.08 Compression : - Data Reduction : 1.08 Overprovisioning : 0.66
now FC vs SSD
showsys -space -devtype FC ------------ System Capacity (MiB) ------------- Total Capacity : 27443200 Allocated : 15336448 Legacy Volumes : 0 User : 0 Snapshot : 0 CPGs (TPVVs & TDVVs & CPVVs) : 11440128 Shared : 0 Private : 11374420 Base : 11373736 Reserved : 10498608 Reserved (vSphere VVols) : 875128 Snap : 684 Reserved : 684 Reserved (vSphere VVols) : 0 Free : 65708 Unmapped : 0 System : 3896320 Internal : 367616 Admin : 98304 Spare : 3430400 Used : 0 Unused : 3430400 Free : 12103680 Initialized : 12103680 Uninitialized : 0 Unavailable : 0 Failed : 3072 ------------------ Efficiency ------------------ Compaction : 1.50 Dedup : - Compression : - Data Reduction : - Overprovisioning : 0.65
showsys -space -devtype SSD ------------ System Capacity (MiB) ------------- Total Capacity : 29286400 Allocated : 29220864 Legacy Volumes : 0 User : 0 Snapshot : 0 CPGs (TPVVs & TDVVs & CPVVs) : 21659648 Shared : 18014020 Private : 3630268 Base : 3629244 Reserved : 645348 Reserved (vSphere VVols) : 2983896 Snap : 1024 Reserved : 1024 Reserved (vSphere VVols) : 0 Free : 15360 Unmapped : 0 System : 7561216 Internal : 0 Admin : 239616 Spare : 7321600 Used : 0 Unused : 7321600 Free : 65536 Initialized : 65536 Uninitialized : 0 Unavailable : 0 Failed : 0 ------------------ Efficiency ------------------ Compaction : 1.52 Dedup : 1.08 Compression : - Data Reduction : 1.08 Overprovisioning : 0.67
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