Wir haben eine neue Tape-Library bekommen die LTO5 kann und somit brauchen wir in Zukunft weniger Bänder. Da freuen wir uns natürlich sehr darüber. Aber vor der Freude hat der liebe Gott die Arbeit gesetzt. Auspacken, einbauen, installieren, soweit alles in Ordnung. Nach einem Rescan wird die neue Library auch in DPM korrekt angezeigt und die alte als Offline.
Jetzt stecken aber laut DPM Datenbank in der alten Library noch Tapes drin die Offsite Ready sind und die alte Library taucht natürlich auch im Tape Report auf.
Das liegt daran, dass die alte Tape Library so lange im Management angezeigt wird, so lange sie mit einer Protection Group verknüpft ist. Das heißt, man muss jede Protection Group modifizieren und Backup & Copy Library ändern. Wenn man nur ein oder zwei Protection Groups hat, ist das ganz einfach. Hat man aber viele, so wie wohl die meisten, dann hilft uns das nachfolgende Powershell Skript.
Vielen Dank an dieser Stelle an Ruud Baars:
http://blogs.technet.com/b/dpm/archive/2010/07/09/replacing-tape-drive-assignments.aspx
Das Skript ruft man plain auf bzw. mit -dpmserver Servername , sofern man es remote ausführt. Es listet dann die online Libraries auf und man wählt dann Quelle und Ziel aus, jeweils für Backup und Copy.
Eine weitere Option ist -drives <#> . Mit dieser legt man die Anzahl der zu benutzenden Laufwerke an. Ist diese nicht angegeben wird der Wert nicht verändert, der bereits eingetragen ist.
Hat man so wie bei uns die alte Library schon abgeschaltet und diese ist offline, wird die natürlich nicht angezeigt. In dem Fall muss man den rot markierten Text aus dem Skript löschen:
param(
[string]$dpmserver = "",
[int]$drives=0,
[switch]$ChangeOptions)
function writelog
{
param([string]$msg, $color="Green")
$msg = "[{0}] {1}" -f ((get-date).tostring($format)), $msg
$msg >> $logfile
Write-Host $msg -ForegroundColor $color
}
function SelectLibrary
{
#get, present and return user selected library
param([string]$title, $srv)
# KEEP the where filter, there can be many old libraries definitions no longer present
$libs = @(Get-DPMLibrary -DPMServerName $srv | where {$_.isoffline -eq $false})
writelog "`nCurrent online library list..."
$i = 0
for ($i = 0; $i -le $libs.count-1; $i ++ ) {
write-host ("[{0}] {1} ({2} drives, {3} slots)" -f $i,$libs[$i].userfriendlyname, $libs[$i].getdrivecollection().count,$libs[$i].getslotcollection().count)
}
[int]$l_index = read-host "`nSelect $title from indexed list "
if (!$libs[$l_index]) {Throw "Incorrect selection!"} else {
$msg = "Selected -> [" + $libs[$l_index].userfriendlyname + "]"
writelog $msg
}
return $libs[$l_index]
}
function SetOptions
{
# initialize and get library options or keep current
param ([string]$title, $ChangeOptions, $pg)
$tp = @{"OnsiteComp"=[boolean]$false; "OnsiteEnc"=[boolean]$false; "OffsiteComp"=[boolean]$false; "OffsiteEnc"=[boolean]$false;"DataVer"=[boolean]$false}
if ($ChangeOptions) {
writelog "`nConfigure $title library"
writelog "WARNING: Encryption and Compression are mutually exclusive, enabling compression disables encryption!`n"
if ((read-host "Do you want SHORT term protection ENCRYPTION enabled [y/N] ") -imatch "Y") {$tp.item("OnsiteEnc")=$true}
if ((read-host "Do you want SHORT term protection COMPRESSION enabled [y/N] ") -imatch "Y") {
if ($tp.item("OnsiteEnc")) { writelog "`t<<< disabling short term encryption >>>"}
$tp.item("OnsiteComp")=$true
$tp.item("OnsiteEnc")=$false
}
if ((read-host "Do you want LONG term protection ENCRYPTION enabled [y/N] ") -imatch "Y") {$tp.item("OffsiteEnc")=$true}
if ((read-host "Do you want LONG term protection COMPRESSION enabled [y/N] ") -imatch "Y") {
if ($tp.item("OffsiteEnc")) { writelog "`t<<< disabling long term encryption >>>"}
$tp.item("OffsiteComp")=$true
$tp.item("OffsiteEnc")=$false
}
if ((read-host "Do you want to enable backup data verification [y/N] ") -imatch "Y") {$tp.item("DataVer")=$true}
}
else {
$tp.Item("OnsiteComp") = $pg.ArchiveIntent.OnsiteCompression
$tp.Item("OnsiteEnc") = $pg.ArchiveIntent.OnsiteEncryption
$tp.Item("OffsiteComp") = $pg.ArchiveIntent.OffsiteCompression
$tp.Item("OffsiteEnc") = $pg.ArchiveIntent.OffsiteEncryption
$tp.Item("DataVer") = $pg.ArchiveIntent.DatasetVerificationIntent
}
return $tp
}
trap [Exception] {
# generic trap routine writing to event log and logf file
writelog "<<< ERROR >>>"
writelog $("TRAPPED: " + $_.Exception.GetType().FullName);
#writelog $("TRAPPED: " + $_.Exception.Message);
$Error
writelog "<<< end >>>"
$log = Get-EventLog -List | Where-Object { $_.Log -eq "Application" }
$log.Source = "DPMswitchTape"
$log.WriteEntry("TRAPPED: $error", [system.Diagnostics.EventLogEntryType]::Error,9911)
$Error.Clear()
exit 1 ;
}
#START
Disconnect-DPMServer #make sure we have no lingering connections
if ($dpmserver -eq "") {$dpmserver = hostname}
$logfile = "DPMswitchTape.LOG"
$maxlog = 5 * 1024 * 1024
# set some commonly used
$global:format = "HH:mm:ss"
$version = "V2.0"
$c = "`,"; $q = "`'" ; $qq = "`""
if ($drives -lt 1) {$drives =1}
#set to false for no console output
$Debug = $true
if ($Args.Count -eq 0) {
writelog "`nUsage: DPMswitchTape.ps1 [-dpmserver <server name>] [-drives #] [-ChangeOptions 0/1]`n"
}
#display intro
writelog "DPMswitchTape $version using server $dpmserver"
$msg= "`n`tChanges protection group library assignment and options"
$msg= $msg + "`n`t`DPMswitchTape.Ps1 [-DPMserver <servername>] [-drives #] [-ChangeOptions `$true]`n"
$msg= $msg + "`n`t`Parameter -drives # defaults to previous or 1 drive if target library has less drives than requested"
$msg= $msg + "`n`tSwitch -ChangeOptions `$true indicates you want to change library options, have to specify each group `n"
$msg=$msg + "`n`t(a) Select source of BACKUP and COPY library to be replaced"
$msg=$msg + "`n`t(b) Select target of BACKUP and COPY library to be assigned"
$msg=$msg + "`n`t(c) Select library options (defaults to current definitions)"
$msg=$msg + "`n`t(d) Confirm to modify all groups or exit without changes`n"
writelog $msg "White"
#ensure logfile does not keep growing endlessly
if ((Get-Item $logfile).length -gt $maxlog) {Remove-Item -path $logfile - confirm:$false}
#get backup libs to re-assigned
$sourcelib = SelectLibrary "OLD BACKUP source library to re-assing" $dpmserver
$targetlib = SelectLibrary "NEW BACKUP target library to assign" $dpmserver
#get copy libs to re-assign
$copysourcelib = SelectLibrary "OLD COPY source library to re-assign" $dpmserver
$copytargetlib = SelectLibrary "NEW COPY target library to assign" $dpmserver
#confirm
if ((read-host "`nContinue and actually modify groups [Y/n] " ) -inotmatch "Y") {
writelog "Done, exiting without changes!"
exit 0
}
writelog "Modifying groups...`n"
$grps = @(Get-ProtectionGroup -DPMServerName $dpmserver | ? {$_.GetDatasources().Count -gt 0})
#Now go modify the groups
foreach ($group in $grps) {
#skip if not selected source backup library
if ($group.ArchiveIntent.LibraryId.Equals($sourcelib.Id)) {
writelog ("Processing group {0}" -f $group.friendlyname)
#do library parameters (there is only 1 set of options for both drives)
$libparams = SetOptions "long term parameters" $ChangeOptions $group
$libparams >> $logfile
if ($targetlib.GetDriveCollection().count -lt $drives) {
$drives = 1 #possibly set to max available drives instead?
writelog "Target library has less than requested number of drives, setting drive pool to $drives"
}
$mpg=Get-ModifiableProtectionGroup $group
$mpg.Archiveintent.Libraryid=$targetlib.Id
$mpg.ArchiveIntent.NumberOfDrives= $drives
$mpg.ArchiveIntent.OnsiteCompression=$libparams.Item("OnsiteComp")
$mpg.ArchiveIntent.OnsiteEncryption=$libparams.Item("OnsiteEnc")
$mpg.ArchiveIntent.OffsiteCompression=$libparams.Item("OffsiteComp")
$mpg.ArchiveIntent.OffsiteEncryption=$libparams.Item("OffsiteEnc")
$mpg.ArchiveIntent.DatasetVerificationIntent=$libparams.Item("DataVer")
Set-ProtectionGroup -ProtectionGroup $mpg
$msg="Modified BACKUP library of protection group " + $group.FriendlyName + " from [" + $sourcelib.UserFriendlyName + "] to [" + $targetlib.UserFriendlyName + "]"
writelog $msg
}
else
{
$msg = "Skipping BACKUP library for protection group " + $group.friendlyname + " because the curren does not match source selection!"
writelog $msg
}
#skip if not selected source copy library
if ($group.ArchiveIntent.SecondaryLibraryId.Equals($copysourcelib.Id)) {
$mpg=Get-ModifiableProtectionGroup $group
$mpg.ArchiveIntent.NumberOfDrives= $drives
$mpg.Archiveintent.SecondaryLibraryid=$copytargetlib.id
$mpg.ArchiveIntent.OnsiteCompression=$libparams.Item("OnsiteComp")
$mpg.ArchiveIntent.OnsiteEncryption=$libparams.Item("OnsiteEnc")
$mpg.ArchiveIntent.OffsiteCompression=$libparams.Item("OffsiteComp")
$mpg.ArchiveIntent.OffsiteEncryption=$libparams.Item("OffsiteEnc")
$mpg.ArchiveIntent.DatasetVerificationIntent=$libparams.Item("DataVer")
Set-ProtectionGroup -ProtectionGroup $mpg
$msg="Modified COPY library of protection group " + $group.FriendlyName + " from [" + $copysourcelib.UserFriendlyName + "] to [" + $copytargetlib.UserFriendlyName + "]"
writelog $msg
}
else
{
$msg = "Skipping COPY library for protection group " + $group.friendlyname + " because the current does not match source selection!"
writelog $msg
}
}
writelog "`nDone!"
exit 0
