Hard drive status

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    by AevnsGrandpa at 2013-04-01 12:50:47

    I have looked around the WMI spaces for hard drive info that I know of, diskdrive and volume, and am not finding a property that would tell me if the drive is failing or failed.

    Just had a server have one of 2 drives set up in a RAID0 fail and really would have like to known it ahead of time if at all possible. I would work this into a script doing a invoke-command while I am in a pssession on the server from my laptop.

    Thanks for the help!


    by coderaven at 2013-04-01 14:10:25

    Look at Win32_LogicalDisk and Win32_DiskDrive property availability and ConfigMgrErrorCode. They tell the status for you.

    by AevnsGrandpa at 2013-04-01 14:13:23

    I guess I answered part of my own question. I am grabbing the system log and looking at just entries for the HP Drive Array. this brings a question of how do I limit the length of the fields I bring back? The message field for some of these entries is huge!! I would like to limit it to say 100 characters. Would I use something like;

    Select-object @{Expression={xxxxxx)}; label="xxxxxx"}

    And get the message field then as a string and somehow truncate it at 100 characters?


    by coderaven at 2013-04-02 06:07:26

    Use the substring(0, 100) to get the first 100 chars

    by MasterOfTheHat at 2013-04-02 06:34:01

    Take a look at the Win32_DiskDriveStatus property, too. I'm not sure if it is accurate for all disk types/makes...

    by AevnsGrandpa at 2013-04-03 06:22:42

    Thanks, I will try that out.


    by AevnsGrandpa at 2013-04-03 07:11:59

    Ok, in playing with this I am able to use the substring to shorten an element of an array;

    $a = get-eventlog system -newest 10 | select Source,Message,TimeGenerated
    foreach ($message in $a) {$short = $message.Message.substring(0,10)}

    So I can gererate a separate string with the Message part of the event log shortened to a certain amount of characters. However in doing this it looks like I have to totally tear apart end array element into 3 strings and then put them back together to just have a shortened message.

    $wholething = $a[0].Source + $short[0] + $a[0].TimeGenerated

    Is there a better way of going this?


    by ArtB0514 at 2013-04-03 07:25:11

    $a = Get-EventLog System -Newest 10 | Select @{Name='Wholething';Expression={"{0} {1} {2}" -f $_.Source, $_.Message.Substring(0,10),$_.TimeGenerated}}

    by MasterOfTheHat at 2013-04-03 07:25:32

    Try it like this:
    Get-EventLog system -Newest 10 | Select-Object Source, @{label="Shortened Message";expression={$_.Message.substring(0,10)}}, TimeGenerated

    Source Shortened Message TimeGenerated
    ------ ----------------- -------------
    Service Control Manager The Multim 4/3/2013 9:21:14 AM
    Service Control Manager The WinHTT 4/3/2013 9:15:22 AM
    Service Control Manager The Office 4/3/2013 9:15:19 AM
    Service Control Manager The Multim 4/3/2013 9:15:00 AM
    Service Control Manager The WinHTT 4/3/2013 9:12:45 AM
    Service Control Manager The Multim 4/3/2013 9:02:23 AM
    Service Control Manager The WinHTT 4/3/2013 8:54:45 AM
    Service Control Manager The Multim 4/3/2013 8:54:30 AM
    Service Control Manager The Multim 4/3/2013 8:51:47 AM
    Service Control Manager The Multim 4/3/2013 8:46:45 AM

    EDIT: whoops! Looks like Art just barely beat me to it. Since they're a little different, I'll leave my post out here...

    by AevnsGrandpa at 2013-04-03 08:19:42

    Thanks, I had wondered and asked in an eariler post if I needed to d the whole @{label...;expression} thing.


    by AevnsGrandpa at 2013-04-03 08:23:14

    Oh and one last (dumb) question. What does "@" mean?


    by MasterOfTheHat at 2013-04-03 08:33:17

    The @{} syntax denotes a hash table. You're using a hash table in that Select-Object cmdlet to create a calculated property. Very handy for making the output human readable, concatenating properties, combining properties arithmetically to create a new property, etc.

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