backup azure storage

I always keep a backup of my azure storage so that in case code deletes something by mistake in azure storage, i have the backup ready to get the file from. Even though azure replicates storage, but it is not fail proof in case of manual deletion and the replica will remove the blob too.

I use AZCOPY to move my data from storage to storage or storage to azure file. This is then run as a 6 hourly job to sync data with storage, giving me enough time to get copy from manual replica in case I delete something.

to download azcopy, go to this link – http://aka.ms/downloadazcopy

then use this powershell script to run AZcopy. (replace with your source and destination storage)

$theSource = @{path=”; accessKey=”; recursion=”; pattern=”}
$theDestination = @{path=”; accessKey=”}

$theSource.path = ‘/Source:https://STORAGENAME.blob.core.windows.net/CONTAINERNAME’
$theSource.AccessKey = ‘/SourceKey:KEY’
$theDestination.path = ‘/Dest:https://STORAGENAME.file.core.windows.net/FILESTORAGENAME’
$theDestination.AccessKey = ‘/DestKey:KEY’

$theSource.recursion = ‘/S /V /XO’
$supressConfirmationPrompt = ‘/Y’
$listingOnlyOption = ” # or /L – use this option if you just want to list.

$arguments = $theSource.path + ” ” + $theDestination.path + ” ” + $theSource.AccessKey + ” ” + $theDestination.AccessKey + ” ” + $theSource.recursion + ” ” + $supressConfirmationPrompt + ” ” + $listingOnlyOption

$pinfo = New-Object System.Diagnostics.ProcessStartInfo
$pinfo.FileName = “C:\AzCopy\AzCopy.exe ”
$pinfo.Arguments = $arguments

$pinfo.RedirectStandardError = $true
$pinfo.RedirectStandardOutput = $true
$pinfo.UseShellExecute = $false

$p = New-Object System.Diagnostics.Process
$p.StartInfo = $pinfo
$p.Start() | Out-Null
$p.WaitForExit()
$stdout = $p.StandardOutput.ReadToEnd()
$stderr = $p.StandardError.ReadToEnd()
Write-Host “stdout: $stdout”
Write-Host “stderr: $stderr”
Write-Host “exit code: ” + $p.ExitCode

if you dont want to use storage key but SAS keys, replace /SourceKey and /DestKey with /SourceSAS and /DestSAS

Then to schedule this job in jenkins, use the following to run it as batch command -Powershell.exe  -NonInteractive -ExecutionPolicy Bypass -File C:\JenkinsJobs\LLProdDatabaseBackups.ps1

Convert Azure D Series VM to DS Series.

I have had lot of scenarios where some old azure D Series VM need to be updated to DS Series so that premium storage disks can be added to those. We can do it manually by moving vm disks around in azure portal or just run the powershell script below and let it do the work. I picked this up from some blog and made few fixes and changes to it as it was bit outdated and crashing. But it did the work for me in the end, and hopefully helps someone out too.

<#

# Migrate a standalone virtual machine to a DS Series virtual machine with Premium storage. Both the VM’s are in the same subscription
.\MigrateVMToPremiumStorage.ps1 -SourceVMName “rajsourcevm2″ -SourceServiceName “rajsourcevm2″ -DestVMName “rajdsvm16″ -DestServiceName “rajdsvm16svc” -Location “West US” -VMSize Standard_DS2 -DestStorageAccountName ‘rajwestpremstg19′ -DestStorageAccountContainer ‘vhds’ -VNetName rajvnettest3 -SubnetName FrontEndSubnet

#>

[CmdletBinding(DefaultParameterSetName=“Default”)]
Param
(
[Parameter (Mandatory = $true)]
[string] $SourceVMName,

[Parameter (Mandatory = $true)]
[string] $SourceServiceName,

[Parameter (Mandatory = $true)]
[string] $DestVMName,

[Parameter (Mandatory = $true)]
[string] $DestServiceName,

[Parameter (Mandatory = $true)]
#[ValidateSet(‘West US’,‘East US 2′,‘West Europe’,‘East China’,‘Southeast Asia’,‘West Japan’,’Australia East’, ignorecase=$true)]
[string] $Location,

[Parameter (Mandatory = $true)]
#[ValidateSet(‘Standard_DS1′,‘Standard_DS2′,‘Standard_DS3′,‘Standard_DS4′,‘Standard_DS11′,‘Standard_DS12′,‘Standard_DS13’,‘Standard_DS14′, ignorecase=$true)]
[string] $VMSize,

[Parameter (Mandatory = $true)]
[string] $DestStorageAccountName,

[Parameter (Mandatory = $true)]
[string] $DestStorageAccountContainer,

[Parameter (Mandatory = $false)]
[string] $VNetName,

[Parameter (Mandatory = $false)]
[string] $SubnetName
)

#publish version of the the powershell cmdlets we are using
(Get-Module Azure).Version

#$VerbosePreference = “Continue”
$StorageAccountTypePremium = ‘Premium_LRS’

#############################################################################################################
#validation section
#Perform as much upfront validation as possible
#############################################################################################################

#validate upfront that this service we are trying to create already exists
if((Get-AzureService -ServiceName $DestServiceName -ErrorAction SilentlyContinue) -ne $null)
{
Write-Error “Service [$DestServiceName] already exists”
return
}

#Determine we are migrating the VM to a Virtual network. If it is then verify that VNET exists
if( !$VNetName -and !$SubnetName )
{
$DeployToVNet = $false
}
else
{
$DeployToVNet = $true
$vnetSite = Get-AzureVNetSite -VNetName $VNetName -ErrorAction SilentlyContinue

if (!$vnetSite)
{
Write-Error “Virtual Network [$VNetName] does not exist”
return
}
}

Write-Host “DepoyToVNet is set to [$DeployToVnet]”

#TODO: add validation to make sure the destination VM size can accomodate the number of disk in the source VM

$DestStorageAccount = Get-AzureStorageAccount -StorageAccountName $DestStorageAccountName -ErrorAction SilentlyContinue

#check to see if the storage account exists and create a premium storage account if it does not exist
if(!$DestStorageAccount)
{
# Create a new storage account
Write-Output “”;
Write-Output (“Configuring Destination Storage Account {0} in location {1}” -f $DestStorageAccountName, $Location);

$DestStorageAccount = New-AzureStorageAccount -StorageAccountName $DestStorageAccountName -Location $Location -Type $StorageAccountTypePremium -ErrorVariable errorVariable -ErrorAction SilentlyContinue | Out-Null

if (!($?))
{
throw “Cannot create the Storage Account [$DestStorageAccountName] on $Location. Error Detail: $errorVariable”
}

Write-Verbose “Created Destination Storage Account [$DestStorageAccountName] with AccountType of [$($DestStorageAccount.AccountType)]”
}
else
{
Write-Host “Destination Storage account [$DestStorageAccountName] already exists. Storage account type is [$($DestStorageAccount.AccountType)]”

#make sure if the account already exists it is of type premium storage
if( $DestStorageAccount.AccountType -ne $StorageAccountTypePremium )
{
Write-Error “Storage account [$DestStorageAccountName] account type of [$($DestStorageAccount.AccountType)] is invalid”
return
}
}

Write-Host “Source VM Name is [$SourceVMName] and Service Name is [$SourceServiceName]”

#Get VM Details
$SourceVM = Get-AzureVM -Name $SourceVMName -ServiceName $SourceServiceName -ErrorAction SilentlyContinue

if($SourceVM -eq $null)
{
Write-Error “Unable to find Virtual Machine [$SourceServiceName] in Service Name [$SourceServiceName]”
return
}

Write-Host “vm name is [$($SourceVM.Name)] and vm status is [$($SourceVM.Status)]”

#need to shutdown the existing VM before copying its disks.
if($SourceVM.Status -eq “ReadyRole”)
{
Write-Host “Shutting down virtual machine [$SourceVMName]”
#Shutdown the VM
Stop-AzureVM -ServiceName $SourceServiceName -Name $SourceVMName -Force
}

$osdisk = $SourceVM | Get-AzureOSDisk

Write-Host “OS Disk name is $($osdisk.DiskName) and disk location is $($osdisk.MediaLink)”

$disk_configs = @{}

# Used to track disk copy status
$diskCopyStates = @()

##################################################################################################################
# Kicks off the async copy of VHDs
##################################################################################################################

# Copies to remote storage account
# Returns blob copy state to poll against
function StartCopyVHD($sourceDiskUri, $diskName, $OS, $destStorageAccountName, $destContainer)
{
Write-Host “Destination Storage Account is [$destStorageAccountName], Destination Container is [$destContainer]”

#extract the name of the source storage account from the URI of the VHD
$sourceStorageAccountName = $sourceDiskUri.Host.Replace(“.blob.core.windows.net”, “”)

$vhdName = $sourceDiskUri.Segments[$sourceDiskUri.Segments.Length – 1].Replace(“%20″,” “)
$sourceContainer = $sourceDiskUri.Segments[$sourceDiskUri.Segments.Length – 2].Replace(“/”, “”)

$sourceStorageAccountKey = (Get-AzureStorageKey -StorageAccountName $sourceStorageAccountName).Primary
$sourceContext = New-AzureStorageContext -StorageAccountName $sourceStorageAccountName -StorageAccountKey $sourceStorageAccountKey

$destStorageAccountKey = (Get-AzureStorageKey -StorageAccountName $destStorageAccountName).Primary
$destContext = New-AzureStorageContext -StorageAccountName $destStorageAccountName -StorageAccountKey $destStorageAccountKey
if((Get-AzureStorageContainer -Name $destContainer -Context $destContext -ErrorAction SilentlyContinue) -eq $null)
{
New-AzureStorageContainer -Name $destContainer -Context $destContext | Out-Null

while((Get-AzureStorageContainer -Name $destContainer -Context $destContext -ErrorAction SilentlyContinue) -eq $null)
{
Write-Host “Pausing to ensure container $destContainer is created..” -ForegroundColor Green
Start-Sleep 15
}
}

# Save for later disk registration
$destinationUri = “https://$destStorageAccountName.blob.core.windows.net/$destContainer/$vhdName”

if($OS -eq $null)
{
$disk_configs.Add($diskName, “$destinationUri”)
}
else
{
$disk_configs.Add($diskName, “$destinationUri;$OS”)
}

#start async copy of the VHD. It will overwrite any existing VHD
$copyState = Start-AzureStorageBlobCopy -SrcBlob $vhdName -SrcContainer $sourceContainer -SrcContext $sourceContext -DestContainer $destContainer -DestBlob $vhdName -DestContext $destContext -Force

return $copyState
}

##################################################################################################################
# Tracks status of each blob copy and waits until all the blobs have been copied
##################################################################################################################

function TrackBlobCopyStatus()
{
param($diskCopyStates)
do
{
$copyComplete = $true
Write-Host “Checking Disk Copy Status for VM Copy” -ForegroundColor Green
foreach($diskCopy in $diskCopyStates)
{
$state = $diskCopy | Get-AzureStorageBlobCopyState | Format-Table -AutoSize -Property Status,BytesCopied,TotalBytes,Source
if($state -ne “Success”)
{
$copyComplete = $true
Write-Host “Current Status” -ForegroundColor Green
$hideHeader = $false
$inprogress = 0
$complete = 0
foreach($diskCopyTmp in $diskCopyStates)
{
$stateTmp = $diskCopyTmp | Get-AzureStorageBlobCopyState
$source = $stateTmp.Source
if($stateTmp.Status -eq “Success”)
{
Write-Host (($stateTmp | Format-Table -HideTableHeaders:$hideHeader -AutoSize -Property Status,BytesCopied,TotalBytes,Source | Out-String)) -ForegroundColor Green
$complete++
}
elseif(($stateTmp.Status -like “*failed*”) -or ($stateTmp.Status -like “*aborted*”))
{
Write-Error ($stateTmp | Format-Table -HideTableHeaders:$hideHeader -AutoSize -Property Status,BytesCopied,TotalBytes,Source | Out-String)
return $false
}
else
{
Write-Host (($stateTmp | Format-Table -HideTableHeaders:$hideHeader -AutoSize -Property Status,BytesCopied,TotalBytes,Source | Out-String)) -ForegroundColor DarkYellow
$copyComplete = $false
$inprogress++
}
$hideHeader = $true
}
if($copyComplete -eq $false)
{
Write-Host “$complete Blob Copies are completed with $inprogress that are still in progress.” -ForegroundColor Magenta
Write-Host “Pausing 60 seconds before next status check.” -ForegroundColor Green
Start-Sleep 60
}
else
{
Write-Host “Disk Copy Complete” -ForegroundColor Green
break
}
}
}
} while($copyComplete -ne $true)
Write-Host “Successfully Copied up all Disks” -ForegroundColor Green
}

# Mark the start time of the script execution
$startTime = Get-Date

Write-Host “Destination storage account name is [$DestStorageAccountName]”

# Copy disks using the async API from the source URL to the destination storage account
$diskCopyStates += StartCopyVHD -sourceDiskUri $osdisk.MediaLink -destStorageAccount $DestStorageAccountName -destContainer $DestStorageAccountContainer -diskName $osdisk.DiskName -OS $osdisk.OS

# copy all the data disks
$SourceVM | Get-AzureDataDisk | foreach {

Write-Host “Disk Name [$($_.DiskName)], Size is [$($_.LogicalDiskSizeInGB)]”

#Premium storage does not allow disks smaller than 10 GB
if( $_.LogicalDiskSizeInGB -lt 10 )
{
Write-Warning “Data Disk [$($_.DiskName)] with size [$($_.LogicalDiskSizeInGB) is less than 10GB so it cannnot be added”
}
else
{
Write-Host “Destination storage account name is [$DestStorageAccountName]”
$diskCopyStates += StartCopyVHD -sourceDiskUri $_.MediaLink -destStorageAccount $DestStorageAccountName -destContainer $DestStorageAccountContainer -diskName $_.DiskName
}
}

#check that status of blob copy. This may take a while if you are doing cross region copies.
#even in the same region a 127 GB takes nearly 10 minutes
TrackBlobCopyStatus -diskCopyStates $diskCopyStates

# Mark the finish time of the script execution
$finishTime = Get-Date

# Output the time consumed in seconds
$TotalTime = ($finishTime – $startTime).TotalSeconds
Write-Host “The disk copies completed in $TotalTime seconds.” -ForegroundColor Green

Write-Host “Registering Copied Disk” -ForegroundColor Green

$luncount = 0 # used to generate unique lun value for data disks
$index = 0 # used to generate unique disk names
$OSDisk = $null

$datadisk_details = @{}

foreach($diskName in $disk_configs.Keys)
{
$index = $index + 1

$diskConfig = $disk_configs[$diskName].Split(“;”)

#since we are using the same subscription we need to update the diskName for it to be unique
$newDiskName = “$DestVMName” + “-disk-“ + $index

Write-Host “Adding disk [$newDiskName]”

#check to see if this disk already exists
$azureDisk = Get-AzureDisk -DiskName $newDiskName -ErrorAction SilentlyContinue

if(!$azureDisk)
{

if($diskConfig.Length -gt 1)
{
Write-Host “Adding OS disk [$newDiskName] -OS [$diskConfig[1]] -MediaLocation [$diskConfig[0]]”

#Expect OS Disk to be the first disk in the array
$OSDisk = Add-AzureDisk -DiskName $newDiskName -OS $diskConfig[1] -MediaLocation $diskConfig[0]

$vmconfig = New-AzureVMConfig -Name $DestVMName -InstanceSize $VMSize -DiskName $OSDisk.DiskName

}
else
{
Write-Host “Adding Data disk [$newDiskName] -MediaLocation [$diskConfig[0]]”

Add-AzureDisk -DiskName $newDiskName -MediaLocation $diskConfig[0]

$datadisk_details[$luncount] = $newDiskName

$luncount = $luncount + 1
}
}
else
{
Write-Error “Unable to add Azure Disk [$newDiskName] as it already exists”
Write-Error “You can use Remove-AzureDisk -DiskName $newDiskName to remove the old disk”
return
}
}

#add all the data disks to the VM configuration
foreach($lun in $datadisk_details.Keys)
{
$datadisk_name = $datadisk_details[$lun]

Write-Host “Adding data disk [$datadisk_name] to the VM configuration”

$vmconfig | Add-AzureDataDisk -Import -DiskName $datadisk_name -LUN $lun
}

#read all the end points in the source VM and create them in the destination VM
#NOTE: I don’t copy ACL’s yet. I need to add this.
$SourceVM | get-azureendpoint | foreach {

if($_.LBSetName -eq $null)
{
write-Host “Name is [$($_.Name)], Port is [$($_.Port)], LocalPort is [$($_.LocalPort)], Protocol is [$($_.Protocol)], EnableDirectServerReturn is [$($_.EnableDirectServerReturn)]]”
$vmconfig | Add-AzureEndpoint -Name $_.Name -LocalPort $_.LocalPort -PublicPort $_.Port -Protocol $_.Protocol -DirectServerReturn $_.EnableDirectServerReturn
}
else
{
write-Host “Name is [$($_.Name)], Port is [$($_.Port)], LocalPort is [$($_.LocalPort)], Protocol is [$($_.Protocol)], EnableDirectServerReturn is [$($_.EnableDirectServerReturn)], LBSetName is [$($_.LBSetName)]”
$vmconfig | Add-AzureEndpoint -Name $_.Name -LocalPort $_.LocalPort -PublicPort $_.Port -Protocol $_.Protocol -DirectServerReturn $_.EnableDirectServerReturn -LBSetName $_.LBSetName -DefaultProbe
}
}

#
if( $DeployToVnet )
{
Write-Host “Virtual Network Name is [$VNetName] and Subnet Name is [$SubnetName]”

$vmconfig | Set-AzureSubnet -SubnetNames $SubnetName
$vmconfig | New-AzureVM -ServiceName $DestServiceName -VNetName $VNetName -Location $Location
}
else
{
#Creating the virtual machine
$vmconfig | New-AzureVM -ServiceName $DestServiceName -Location $Location
}

#get any vm extensions
#there may be other types of extensions that be in the source vm. I don’t copy them yet
$SourceVM | get-azurevmextension | foreach {
Write-Host “ExtensionName [$($_.ExtensionName)] Publisher [$($_.Publisher)] Version [$($_.Version)] ReferenceName [$($_.ReferenceName)] State [$($_.State)] RoleName [$($_.RoleName)]”
get-azurevm -ServiceName $DestServiceName -Name $DestVMName -Verbose | set-azurevmextension -ExtensionName $_.ExtensionName -Publisher $_.Publisher -Version $_.Version -ReferenceName $_.ReferenceName -Verbose | Update-azurevm -Verbose
}

 

Azure File Service on linux

You can now using azure file services to make large drives and mount them to linux server. When i was testing, it was available for many windows versions and very few version of linux.

Linux VMs deployed on Azure can make use of this service using the Linux Kernel CIFS client. The kernel client must be configured to support and use the SMB 2.1 protocol dialect:

CONFIG_CIFS_SMB2 must be enabled in the kernel configuration at build time
Use
# zcat /proc/config.gz | grep CONFIG_CIFS_SMB2
to check this on a running system.
The vers=2.1 mount.cifs parameter must be provided at mount time.
Furthermore, the Azure storage account and access key must be provided as username and password.

# mount.cifs -o vers=2.1,user=smb //smb.file.core.windows.net/share /share/
Password for smb@//smb.file.core.windows.net/share: ******…
# df -h /share/
Filesystem Size Used Avail Use% Mounted on
//smb.file.core.windows.net/share 5.0T 0 5.0T 0% /share