AzStackHci.EnvironmentChecker

10.2609.0.2002

AzStackHciStorage/AzStackHci.Storage.Helpers.psm1

                                Import-LocalizedData -BindingVariable lnTxt -FileName AzStackHci.Storage.Strings.psd1

# Test Methods

function Test-HciStoragePool {

    [CmdletBinding()]

    param (

        [Parameter(Mandatory = $true, HelpMessage = "Pool configuration xml from Storage role.")]

        [XML]

        $PoolConfigXml,

        [Parameter(Mandatory = $true, HelpMessage = "Total number of cluster nodes.")]

        [uint32]

        $NodeCount

    )

    try {

        $instanceResult = @{}

        $instanceResult.Name = 'AzStackHci_Storage_Test_Storage_Pool'

        $instanceResult.Title = 'Test Storage Pool'

        $instanceResult.DisplayName = 'Test Storage Pool'

        $instanceResult.Severity = 'CRITICAL'

        $instanceResult.Description = 'Checking storage pool for upgrade readiness'

        $instanceResult.TargetResourceID = 'StoragePool'

        $instanceResult.TargetResourceName = '(None)'

        $instanceResult.TargetResourceType = 'Storage Pool'

        $instanceResult.Timestamp = [datetime]::UtcNow

        $instanceResult.HealthCheckSource = $ENV:EnvChkrId

        $instanceResult.Status = 'SUCCESS'

        # Get storage pool

        $pool = Get-StoragePool -IsPrimordial:$false -ErrorAction Ignore

        Log-Info -Message "Storage Pool: `n$($pool | Format-Table | Out-String)"

        # Get S2D status

        $s2d = Get-ClusterS2D -ErrorAction Ignore

        Log-Info -Message "ClusterS2D: `n$($s2d | Format-List | Out-String)"

        $s2dEnabled = $s2d -and $s2d.State -eq 'Enabled'

        # Check pool existence vs S2D status, only below combinations are valid

        #   1. S2D is enabled and single storage pool found

        #   2. S2D is not enabled and no storage pool is found

        Log-Info -Message "Checking storage pool existence vs S2D status"

        if ($pool) {

            if (@($pool).Count -eq 1) {

                $instanceResult.TargetResourceName = $pool.FriendlyName

                if (-not $s2dEnabled) {

                    $instanceResult.Status = 'FAILURE'

                    $instanceResult.Remediation = ($lnTxt.RemNonS2DStoragePoolFound -f $pool.FriendlyName)

                    return (New-AzStackHciResultObject @instanceResult)

                }

            }

            else {

                $instanceResult.Status = 'FAILURE'

                $instanceResult.Remediation = $lnTxt.RemMultipleStoragePoolFound

                return (New-AzStackHciResultObject @instanceResult)

            }

        }

        else {

            if ($s2dEnable) {

                $instanceResult.Status = 'FAILURE'

                $instanceResult.Remediation = $lnTxt.RemS2DEnabledWithoutStoragePool

                return (New-AzStackHciResultObject @instanceResult)

            }

        }

        # Check pool health status

        if ($pool)

        {

            Log-Info -Message "Checking health state for storage pool '$($pool.FriendlyName)'"

            if ($pool.OperationalStatus -ne 'OK' -or $pool.HealthStatus -ne 'Healthy') {

                $instanceResult.Status = 'FAILURE'

                $instanceResult.Remediation = ($lnTxt.RemStoragePoolNotHealthy -f $pool.FriendlyName, $pool.OperationalStatus, $pool.HealthStatus)

                return (New-AzStackHciResultObject @instanceResult)

            }

            elseif ($pool.IsReadOnly) {

                $instanceResult.Status = 'FAILURE'

                $instanceResult.Remediation = ($lnTxt.RemStoragePoolIsReadOnly -f $pool.FriendlyName)

                return (New-AzStackHciResultObject @instanceResult)

            }

            # Check pool version

            $requiredVersion = 28 # which corresponds to 'Windows Server vNext' ON 23H2 and 'Windows Server 2025' ON 24H2

            $poolVersion = 0

            try

            {

                $poolVersion = (Get-CimInstance -Namespace root/microsoft/windows/storage -ClassName MSFT_StoragePool -Filter 'IsPrimordial = false').CimInstanceProperties['Version'].Value

            }

            catch

            {

                Log-Info -Message "Failed to get storage pool version, assuming version 0. Error: $_"

            }

            $SuppressHCIPoolCheck = ("1" -eq [Environment]::GetEnvironmentVariable("SuppressHCIPoolCheck", "Machine"))

            Log-Info -Message "Storage pool '$($pool.FriendlyName)' version is $poolVersion, required version is at least $requiredVersion"

            if (!$SuppressHCIPoolCheck -and ($poolVersion -lt $requiredVersion))

            {

                $instanceResult.Status = 'FAILURE'

                $instanceResult.Remediation = ($lnTxt.RemStoragePoolVersion -f $pool.FriendlyName, $poolVersion, ($requiredVersion -join ', '))

                return (New-AzStackHciResultObject @instanceResult)

            }

        }

        # Check pool capacity for infrastructure volumes creation

        if ($pool) {

            Log-Info -Message "Checking remaining capacity in storage pool '$($pool.FriendlyName)'"

            $remainingCapacity = $pool.Size - $pool.AllocatedSize

            $requiredInfraCapacity = GetRequiredInfraVolumeRawSizeTotalInBytes -PoolConfigXml $PoolConfigXml -NodeCount $NodeCount

            if ($remainingCapacity -lt $requiredInfraCapacity) {

                $instanceResult.Status = 'FAILURE'

                $instanceResult.Remediation = ($lnTxt.RemInsufficientPoolCapacityForInfraVolumes -f $pool.FriendlyName, $remainingCapacity, $requiredInfraCapacity)

                return (New-AzStackHciResultObject @instanceResult)

            }

        }

        return (New-AzStackHciResultObject @instanceResult)

    }

    catch {

        throw $_

    }

}

function Test-HciStorageVolumes {

    [CmdletBinding()]

    param (

        [Parameter(Mandatory = $true, HelpMessage = "Pool configuration xml from Storage role.")]

        [XML]

        $PoolConfigXml,

        [Parameter(Mandatory = $true, HelpMessage = "Total number of cluster nodes.")]

        [uint32]

        $NodeCount

    )

    try {

        $instanceResults = @()

        # Get the preserved names of infra volumes

        $infraVolumeNames = @(GetRequiredInfraVolumeNames -PoolConfigXml $PoolConfigXml -NodeCount $NodeCount)

        # Get current volumes on the stamp

        $currentVDs = Get-VirtualDisk -ErrorAction Ignore

        Log-Info -Message "Virtual Disks: `n$($currentVDs | Format-Table | Out-String)"

        $currentVolumeNames = @($currentVDs | ForEach-Object FriendlyName)

        # Check if current volume name conflicts with preserved infrastructure volumes

        Log-Info -Message "Checking storage volume name conflicts"

        foreach ($infraName in $infraVolumeNames) {

            if ($currentVolumeNames -contains $infraName) {

                $status = 'FAILURE'

                $dtl = ($lnTxt.RemInfraVolumeNameConflict -f $infraName)

                Log-Info $dtl -type CRITICAL

            }

            else {

                $status = 'SUCCESS'

            }

            $params = @{

                Name               = 'AzStackHci_Storage_Test_Storage_Volume'

                Title              = 'Test Storage Volume'

                DisplayName        = 'Test Storage Volume'

                Severity           = 'CRITICAL'

                Description        = 'Checking storage volumes for upgrade readiness'

                Tags               = @{}

                Remediation        = 'https://aka.ms/UpgradeRequirements'

                TargetResourceID   = $infraName

                TargetResourceName = $infraName

                TargetResourceType = 'Storage Volume'

                Timestamp          = [datetime]::UtcNow

                Status             = $status

                AdditionalData     = @{

                    Source    = $infraName

                    Resource  = 'Storage Volume'

                    Detail    = ($lnTxt.RemInfraVolumeNameConflict -f $infraName)

                    Status    = $status

                    TimeStamp = [datetime]::UtcNow

                }

                HealthCheckSource  = $ENV:EnvChkrId

            }

            $instanceResults += New-AzStackHciResultObject @params

        }

        return $instanceResults

    }

    catch {

        throw $_

    }

}

function Test-StoragePoolCapacity {

    [CmdletBinding()]

    param(

        [System.Management.Automation.Runspaces.PSSession[]]

        $PsSession,

        [Parameter(Mandatory = $true)]

        [ValidateSet("Simple", "Mirror", "Parity")]

        [string]$ResiliencySettingName,

        [Parameter(Mandatory = $true)]

        [ValidateSet(0, 1, 2, 3)]

        [Int]$PhysicalDiskRedundancy,

        [Parameter()]

        [ValidateSet("Standard", "RackAware")]

        [String]$ClusterPattern = 'Standard'

    )

    $scriptBlock = {

        Import-Module Storage -Verbose:$false

        $logDtl = ""

        # Get physical disks that are eligible for S2D

        $eligibleDisks = Get-PhysicalDisk | Where-Object {

            $_.CanPool -eq $true -and $_.OperationalStatus -eq 'OK'

        }

        # Classify by media type

        $ssdDisks = $eligibleDisks | Where-Object {$_.MediaType -match 'SSD|4' -and $_.BusType -match 'SAS|10|SATA|11'}

        $nvmeDisks = $eligibleDisks | Where-Object {$_.MediaType -match 'SSD|4' -and $_.BusType -match 'NVMe|17'}

        $scmDisks = $eligibleDisks | Where-Object {$_.MediaType -match 'SCM|5'}

        $hddDisks = $eligibleDisks | Where-Object {$_.MediaType -match 'HDD|3'}

        $logDtl += ("Drive types detected HDD: {0}, SSD:{1}, NVMe:{2}, SCM:{3}" -f [bool]$hddDisks, [bool]$ssdDisks, [bool]$nvmeDisks, [bool]$scmDisks)

        $cacheTier = 'None'

        $capacityDisks = @()

        if ($scmDisks.Count -gt 0) {

            # SCM exists -> SCM = cache, all others = capacity

            $capacityDisks = $eligibleDisks | Where-Object { $_.MediaType -ne 'SCM' }

            $cacheTier = 'SCM'

        }

        elseif ($nvmeDisks.Count -gt 0 -and ($ssdDisks.Count -gt 0 -or $hddDisks.Count -gt 0)) {

            # NVMe + SSD/HDD -> NVMe = cache

            $capacityDisks = $ssdDisks + $hddDisks

            $cacheTier = 'NVMe'

        }

        else {

            # All one type -> all used for capacity

            $capacityDisks = $eligibleDisks

            $cacheTier = 'None'

        }

        if (-not $capacityDisks) {

            $logDtl += "`r`n$($ENV:COMPUTERNAME): No eligible physical disks found for S2D."

            $logDtl += "`r`n$($ENV:COMPUTERNAME): Capacity disks: $($capacityDisks | Format-Table | Out-String)"

            $logDtl += "`r`n$($ENV:COMPUTERNAME): Eligible disks: $($eligibleDisks | Format-Table | Out-String)"

            $logDtl += "`r`n$($ENV:COMPUTERNAME): Cache tier: $cacheTier"

            throw "No eligible physical disks found for S2D."

        }

        $rawCapacity = ($capacityDisks | Measure-Object -Property Size -Sum).Sum

        return @{

            ComputerName     = $ENV:COMPUTERNAME

            RawCapacityBytes = $rawCapacity

            Efficiency       = $efficiency

            DiskCount        = $capacityDisks.Count

            CacheTier        = $cacheTier

            LogDtl          = $logDtl

        }

    }

    $poolData += if ($PsSession) {

        Invoke-Command -Session $PSSession -ScriptBlock $scriptBlock

    }

    else {

        Invoke-Command -ScriptBlock $scriptBlock

    }

    Log-Info -Message "Storage Pool Data: `n$($poolData | Format-Table | Out-String)"

    $instanceResult = @()

    $clusterStoragePoolRawCapacity = ($poolData.RawCapacityBytes | Measure-Object -Sum).Sum

    $storagePoolDiskCount = ($poolData.DiskCount | Measure-Object -Sum).Sum

    if ($ClusterPattern -eq 'RackAware') {

        $efficiency = 1 / 4 # Assuming 4-way rack-aware mirroring

    }

    else {

        switch ($ResiliencySettingName) {

            "Simple" {

                $efficiency = 1

            }

            "Mirror" {

                switch ($PhysicalDiskRedundancy) {

                    1 {

                        $efficiency = 1 / 2

                    } # 2-way mirror

                    2 {

                        $efficiency = 1 / 3

                    } # 3-way mirror

                    default {

                        throw "Unsupported redundancy level for Mirror: $PhysicalDiskRedundancy"

                    }

                }

            }

        }

    }

    $status = 'SUCCESS'

    $usableCapacityBytes = [uint64]($clusterStoragePoolRawCapacity * $efficiency)

    Log-Info -Message "Storage Pool Capacity: Raw Capacity: $($clusterStoragePoolRawCapacity / 1GB)GB, Usable Capacity: $($usableCapacityBytes / 1GB)GB, Efficiency: $($efficiency), Storage Pool Disk Count: $($storagePoolDiskCount), Node Count: $($PsSession.Count), ResiliencySettingName: $ResiliencySettingName, PhysicalDiskRedundancy: $PhysicalDiskRedundancy"

    if ($usableCapacityBytes -lt 450GB) {

        $status = 'FAILURE'

    }

    $params = @{

        Name               = 'AzStackHci_Hardware_Test_StoragePoolCapacity'

        Title              = 'Test Storage Pool Capacity'

        DisplayName        = "Test Storage Pool Capacity $computerName"

        Severity           = 'INFORMATIONAL'

        Description        = "Checking Storage Pool Capacity"

        Tags               = @{}

        Remediation        = 'https://learn.microsoft.com/en-us/azure/azure-local/concepts/system-requirements-23h2'

        TargetResourceID   = $computerName

        TargetResourceName = $computerName

        TargetResourceType = 'Disk'

        Timestamp          = [datetime]::UtcNow

        Status             = $status

        AdditionalData     = @{

            Source    = 'Version'

            Resource  = $computerName

            Detail    = "Storage Pool Capacity is $($usableCapacityBytes / 1GB) GB; Expected >= 450 GB. Raw capacity: $($clusterStoragePoolRawCapacity / 1GB) GB, Efficiency: $($efficiency)"

            Status    = $status

            TimeStamp = [datetime]::UtcNow

            NodeCount  = $PsSession.Count

            StoragePoolDiskCount = $storagePoolDiskCount

            ResiliencySettingName = $ResiliencySettingName

            PhysicalDiskRedundancy = $PhysicalDiskRedundancy

        }

        HealthCheckSource  = $ENV:EnvChkrId

    }

    $instanceResult = New-AzStackHciResultObject @params

    return $instanceResult

}

# Internal Methods

function GetRequiredInfraVolumeRawSizeTotalInBytes {

    [CmdletBinding()]

    param (

        [Parameter(Mandatory = $true)]

        [XML]

        $PoolConfigXml,

        [Parameter(Mandatory = $true)]

        [uint32]

        $NodeCount

    )

    $poolConfig = $PoolConfigXml.StoragePool

    # Compute total size of (fixed-size) infrastructure volumes

    $totalInfraVolSize = 0

    foreach ($volConfig in $poolConfig.Volumes.Volume | Where-Object { $_.Size -and $NodeCount -ge $_.MinNodeCount -and $_.Usage -ne 'Disconnected' }) {

        $volSize = Invoke-Expression $volConfig.Size

        $totalInfraVolSize += $volSize

    }

    # Compute raw size after mirroring

    $storageEfficiency = if ($NodeCount -le 2) {

        1 / 2

    }

    else {

        1 / 3

    }

    $totalInfraVolSize = [uint64]($totalInfraVolSize / $storageEfficiency)

    Log-Info -Message "Total infrastructure volumes raw size required: $totalInfraVolSize, with storage efficiency: $storageEfficiency"

    return $totalInfraVolSize

}

function GetRequiredInfraVolumeNames {

    [CmdletBinding()]

    param (

        [Parameter(Mandatory = $true)]

        [XML]

        $PoolConfigXml,

        [Parameter(Mandatory = $true)]

        [uint32]

        $NodeCount

    )

    $poolConfig = $PoolConfigXml.StoragePool

    $infraVolumeNames = $poolConfig.Volumes.Volume | Where-Object { $_.Size -and $NodeCount -ge $_.MinNodeCount } | ForEach-Object Name

    Log-Info -Message "Required infrastructure volumes: [$infraVolumeNames]"

    return $infraVolumeNames

}

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