Multipath information from Windows servers running with HDLM
Here is a Script developed in PowerShell to retrieve Multipath information from Windows servers running with HDLM DSM as MPIO.
This script can be used without any parameter to present useful and minimal required information.
There are different parameters which can be used to retrieve maximum possible information from servers but they are in raw format (text format)
This script can also be downloaded from Microsoft Technet Script Gallery
https://gallery.technet.microsoft.com/HDLM-Multipath-Information-003fdc80
# Developed for fetching Multipath Information from Windows
servers running with HDLM MPIO
# If used without any parameter, it will display information
in simple way by processing information retrieved from HDLM binaries.
# There are three parameters defined in the script which can
be used to get different type of information related to Multipathing
# Information retrieved with defined parameters are only raw
(Plain Text) and needs to be interpreted properly.
# Use it at your own responsibility Developer will not be held
responsible for any damage caused by running this script improperly.
# Developed on Jan-08-2019
Param(
[Switch]$Verbose,
[Switch]$PathOnly,
[Switch]$Compact
)
if ($PathOnly
)
{
dlnkmgr
view -path
-c
}
elseif ($Verbose)
{
write-host
"`n_________
Displaying HDLM agent Information _________`n"
dlnkmgr
view -sys
write-host
"`n__________ Displaying Luns Information _________`n"
dlnkmgr
view -lu
write-host
"`n_________
Displaying Path Information
_________`n"
dlnkmgr
view -path
}
elseif ($Compact)
{
write-host
"`n_______________ Displaying HDLM Version _______________`n"
dlnkmgr
view -sys
|Select-String
"HDLM Version"
write-host
"`n_________
Displaying Luns Information (Compact)
_________`n"
dlnkmgr
view -lu -c
write-host
"`n_________
Displaying Path Information (Compact)
_________`n"
dlnkmgr
view -path
-c
}
else
{
## HDLM Version
$HDLMVer
= dlnkmgr view -sys |Select-String "HDLM Version"
$HDLMVer
= $HDLMVer
-replace "
",""
-split ":"
$HDLMVersion
= "HDLMVersion :: $($HDLMVer[1])"
$Computername
= "Computername :: $env:COMPUTERNAME"
##Fetch total Number of Luns
$LunCount
= dlnkmgr view -lu |Select-String "LUs"
$Luns = $LunCount -replace " ","" -split ":"
##Online Paths Count
$OnlinePaths
= "OnlinePaths :: $((dlnkmgr view -path |Select-String HITACHI |Select-String "online" |measure).Count)"
##Offline Paths Count
$OfflineLuns
= "OfflinePaths :: $((dlnkmgr view -path |Select-String HITACHI |Select-String -NotMatch "online" |measure).Count)"
##First Line of "dlnkmgr view -lu -c" which contains
Array Serial Number, first lun and its path details
$Pathinfo
= dlnkmgr view -lu -c | Select-String -notmatch
"Product","HDLM command"
$FirstLine
= $Pathinfo
-replace "\s{1,}",":" |select -First 1
$info = ($firstline -split ":")
##Array Summary with Array Name, Array Serial Number and Total
Number of Luns Presented
$ArrayName
= "ArrayName :: $($info[0])"
$ArraySerial
= "ArraySerial :: $($info[1])"
$TotalLuns
= "TotalLuns :: $($info[2])"
##Print Summary
Write-Output
"------------------------------------------------------------------------------------------"
Write-Output
"---------------------------------- Host Summary -------------------------------"
Write-Output
"------------------------------------------------------------------------------------------"
$Computername, $TotalLuns, $OnlinePaths, $OfflineLuns, $HDLMVersion, $ArrayName, $ArraySerial
##First Lun Details
$FirstLun
= Write-Output
"LunID :: $($info[3]) `t DriveLetter :: $($info[4])`t TotalPaths :: $($info[5])`t OnlinePaths :: $($info[6])"
##Remaining Lines of "dlnkmgr view -lu -c" which
contains Array Serial Number, remaining luns and their path details
$otherpaths
= $Pathinfo
-replace "\s{1,}",":" |select -Skip 1
$otherinfo
= ($otherpaths
-split ":")
$allPaths
= $Pathinfo
|select -Skip 1 | foreach {$_ -replace "\s{1,}",":"} |foreach { $_ -replace "^:"
}
$Remaining
= $allPaths
| foreach { $Line = $_ -split ":"; write-output "LunID :: $($Line[0]) `t DriveLetter :: $($Line[1]) `t TotalPaths :: $($Line[2])`t OnlinePaths :: $($Line[3]) "}
Write-Output
"------------------------------------------------------------------------------------------"
Write-Output
"---------------------------------- LUNs Summary --------------------------------"
Write-Output
"------------------------------------------------------------------------------------------"
Write-Output
$FirstLun
Write-Output
$Remaining
} Here are the screenshots taken from this script's execution:
Script executed without any parameter
Script executed with parameter -PathOnly
Script executed with parameter -Compact
Script executed with parameter -Verbose
