Hello guys I have the following problem:
I have setup a storage pool with 6x8TB HDDs and 3x256GB SSDs. I managed to create a tiered parity space with the following commands:
The problem is that the maximum available is only around 30TB. I think storage spaces is setting up both tiers with a column size of three, so that I loose the capacity for two HDDs.
The real capacity for the six 8TB HDDs is around 7.28 for each, wich will give us the following numbers:
@cesmith9999: I have read on your posts that different column sizes are possible in Server 2016 now and that you are using such kind of configuration already. So could you maybe help me please?
Best regards
DieHarke
I have setup a storage pool with 6x8TB HDDs and 3x256GB SSDs. I managed to create a tiered parity space with the following commands:
Code:
# paramter section
$spName = "StoragePool0"
$vdName = "VirtualDisk0"
$cols_ssdTier = 3 # how to incorporate those value?
$cols_hddTier = 6 # how to incorporate those value?
$s_ssdTier = 350GB # maximum possible size
$s_hddTier = 29700GB # maximum possible size
$s_WBC = 50GB # maximum possible size accorsinf to above sizes
# create storage tiers
$ssdTier = New-StorageTier -StoragePoolFriendlyName $spName -FriendlyName "SSD_Tier" -MediaType SSD
$hddTier = New-StorageTier -StoragePoolFriendlyName $spName -FriendlyName "HDD_Tier" -MediaType HDD
# create and initialize the virtual disk
Get-StoragePool $spName | New-VirtualDisk -FriendlyName $vdName -StorageTiers $ssdTier, $hddTier -StorageTierSizes $s_ssdTier, $s_hddTier -ResiliencySettingName "Parity" -WriteCacheSize $s_WBC
Initialize-Disk -VirtualDisk (Get-VirtualDisk -FriendlyName $vdName)
The real capacity for the six 8TB HDDs is around 7.28 for each, wich will give us the following numbers:
- 6 columns (loose one disk): 5 * 7.28TB = 36.4TB
- 3 columns (loose two disks): 4 * 7.28TB = 29.12TB -> exactly what storage spaces is showing
@cesmith9999: I have read on your posts that different column sizes are possible in Server 2016 now and that you are using such kind of configuration already. So could you maybe help me please?
Best regards
DieHarke
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