Logical Disk (Mount Point) Performance Counters

We're currently running SCOM 2012 SP1, Management Servers and Agents are all at UR8
The Windows Server Operating system management pack is at 6.0.7292.0
We're successfully collecting performance metrics which are not mount points but the performance metrics for mount points are missing. We've enabled the discovery for mount points.
The error that I'm seeing on the agent machines is:
In PerfDataSource, could not resolve counter instance LogicalDisk, Avg. Disk Write Queue Length, G:\Archive\. Module will not be unloaded.
One or more workflows were affected by this.
Workflow name: Microsoft.Windows.Server.2008.LogicalDisk.AverageDiskWriteQueueLength.Collection
Instance name: G:\Archive\
Instance ID: {EE651C3D-A5B8-E5C2-459E-8B6C27F8B813}
We used to be able to collect this performance data but now it's failing. Does anyone know how to resolve this?

Hi!
There was a new MP version fixing Mount Point monitoring online earlier this year but it has been pulled since there where some bugs.
Expect the new version available within the next couple of weeks. I assume your issue will be fixed there.
Cheers,
Patrick
Please remember to click “Mark as Answer” on the post that helped you.
Patrick Seidl (System Center and Private Cloud)
Website: http://www.syliance.com
Blog: http://www.systemcenterrocks.com

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USB flash disk mount points not created [SOLVED]

I am having a problem where my USB flash disk is not always being mounted after being detected by KDE. I have just installed Arch 2007.05, updated it and installed KDEmod. Here's what happens when I plug in a device.
1. I insert the device, KDE detects the device and shows the KDE Mount Daemon dialog. "Open in New Window" or "Do Nothing" are the two available options.
2. At this point, my device shows up in system:/media (in Konqueror), but it is not mounted. When I place the cursor over the device in Konqueror a popup with the device's label and the text "Unmounted Removable Medium" appears. There is no corresponding directory in the /media directory in my file system.
3. In the KDE Daemon window I select "Do Nothing" by either double-clicking it or selecting it and clicking OK.
4, My device does not get mounted. This is annoying since most of the time I just want it mounted so I can do some command-line work.
If in the KDE Daemon window if I select "Open in New Window" the device is mounted and the corresponding directory appears in my /media directory. Also, if I select "Do Nothing" but then later navigate into the contents of the device in Konqueror, at that point the device is mounted and the corresponding directory appears in my /media directory. When my device is plugged in, but not mounted there is a "Mount" option in the right-click context menu, but I want it to automatically mount.
On my other machine with openSUSE, the drive is mounted even if you choose "Do Nothing" in the KDE Daemon window. That way seems more correct, because if I plug a device in, I most likely want it mounted. (I know there are some cases where this might not be true, but those cases are certainly not the normal use casese.) Now I have to open Konqueror just to get the drive to mount. It seems that the drive should be mounted no matter what you choose in the KDE Daemon window.
Now, is this normal KDE or Arch behavior or is it something that can be adjusted or fixed?
Thanks in advance.
Last edited by jbromley (2007-10-22 07:22:08)

Turing - imagine that! For some reason it never occurred to me to check the properties of the unmounted volume. Well, you learn something every day.
In the meantime, I decided that maybe "Do Nothing" should do just that and I should perhaps add a service to mount the drive, but not bring up any windows. Here's what I did.
1. Create a mount_vol.sh shell script with the following contents.
#!/bin/bash
udi=$(dcop kded mediamanager properties $1 2>/dev/null | head -n 1)
if test -n "$udi"; then
dcop kded mediamanager mount "$udi" >/dev/null 2>&1
fi
2. chmod +x mount_vol.sh.
3. Move the script somewhere like /usr/local/bin.
4. Plug in some removable device, in the KDE Daemon window click "Configure..."
5. In the KDE Control Module dialog that appears click "Add"
6. Give the service a name like "Mount Removable Medium", click the X icon to select a service icon, select "Unmounted Removable Medium" under "Available medium types" and click the right arrow. For the command use "/usr/local/bin/mount_vol.sh %u.
7. Click OK.
Now when the KDE Daemon action dialog appears, there will be the option to just mount it. You can of course use this same script for other medium types.
Regards.

Jetstress 2013 found the following faulty logical disk performance counters

I'm using Jetstress 2013 to test the storage disk subsystem for Exchange 2013. After the db build completed I click run test & got this error. I'm only getting this error on this VM. The other 3 VMs are fine. I also reformatted the disk & rebuild
the db but got the same error. Anyone seen this before?
Jetstress testing failed. Error: Jetstress found the following faulty logical disk performance counters: C:\jsdb\db4. Ensure that all logical disk performance counters are working correctly with System Monitor. Error: Instance 'C:\jsdb\db4' does not exist
in the specified Category.

As reinstalling the VM is not always possible, and the time to recreate the databases quite considerable, the actual answer to this issue is to find the path that the logical disk counters are using and then update the path to the databases in JetStress
to match this.
On your test machine open Performance Monitor and click the Performance Monitor node.
Click the green + icon and select the "Logical Disk" row.
In the Instances of selected object you will see the paths that the logical disk counter is using to find the databases. For example C:\ExchangeVolumes\ExVol1 and C:\ExchangeVolumes\ExVol2.
Update the JetStress config to use these paths and not the paths that you might be using such as C:\ExchangeDatabases\DB01.db.
The problem is due to the autoreseed scripts in the perf calculator mounting the C:\ExchangeVolume path first (and so that is the logical disk counters path) but the operator of JetStress using the more obvious C:\ExchangeDatabases path.
There is an update to JetStress post the original date of this question that resolves this issue so you can use either path, but if you add disks to a server or recreate some of the disk arrays and not others you might find that JetStress needs to use C:\ExchangeVolumes\...
to reach some databases and C:\ExchangeDatabases to reach the others.
If you get the error in the original post for some of your databases and not all of them, then this is the fix and use Performance Monitor to see the paths needed and use only those in JetStress.
Brian Reid C7 Solutions Ltd (www.c7solutions.com)

Cluster Disk Logical Disk Performance Counters Problem

I have some problem with Oracle cluster. It's a two node Windows server 2008 R2 SP1 cluster with MS Failover cluster. I have SCOM 2012 SP1 with latest OS MP (agent running with local system rights). All other cluster are showing fine performance counters
but this cluster does only show one cluster disk free space counters. It has 5 cluster disks (MBR formatted). Logical disk performance counters are running fine. So my questions:
What performance counters does the new "Cluster Disk % and MB free space rule" use? Is it the same old Logical Disk performance counter that collects data for example for drive C:?
What should I check from this cluster because performance view from my cluster groups are not showing all disks, just one and there are 5 cluster disks?
Only one Cluster Disk is showing under performance view!
Health Explorer from Cluster group shows all Cluster disks!

We have this issue with normal Win server 2008 SQL servers. I can see disks at the Health Explorer view but no collection rules at the performance view. Rule does not have any overrides and it's enabled by default. We use the latest Core OS pack and Cluster
MP. IS this ANOTHER bug in the MS management pack?

Logical Disk Performance counter for cluster shared volume on Hyper-V

Hello All,
I am trying to collect counters like latency, queuelength from Win32_PerfFormattedData_PerfDisk_LogicalDisk WMI class.
Output of "Name" attribute for logical disks in this class as below:
Name: _Total
Name: C:
Name: E:
Name: HarddiskVolume1
Name: Q:
Name here doesn't show the actual label so I queried Win32_Volume class and wanted to join with performance WMI class. Out put of Win32_Volume is as below:
Caption: E:\
Label: New Volume
Name: E:\
Caption: Q:\
Label: Quorum
Name: Q:\
Caption: C:\
Label: Voume C
Name: C:\
Caption: F:\
Label: SAN
Name: F:\
Please note that "Name" attribute matches for all except one with label "SAN". This is cluster shared volume and "Name" attribute value is "HardDiskVolume1" in Win32_PerfFormattedData_PerfDisk_LogicalDisk class.
Is this is a configuration issue or any other alternative to get volume label and corresponding performance counters.
Thanks in advance
Regards,
Udupa

Hi Udupa,
I haven't found a better way, if you want to combine the two script, please refer to the script below:
$output=@()
$volumes = gwmi Win32_Volume
foreach($volume in $volumes){
$match=($volume.name).TrimEnd("\")
$counter=gwmi Win32_PerfFormattedData_PerfDisk_LogicalDisk |where{$_.name -eq $match}
$Object = New-Object PSObject
$Object | add-member Noteproperty name $volume.name
$Object | add-member Noteproperty label $volume.label
$Object | add-member Noteproperty AvgDiskQueueLength $counter.AvgDiskQueueLength
$output += $Object
$output
I hope this helps.

Powershell- Associate Mount Point to Physical Disk

I need to be able to associate mount points (Get-WmiObject -Class Win32_MountPoint) with the physical drive on which it resides.
Scenario: I have physical disks (SAN LUNs) mounted as folders on an E: drive (also a SAN LUN) of a server. I need to be able to, via a PowerShell script, associate the "folder" name to the physical disk (i.e., Harddisk4 or PhysicalDrive4).
I can get Mount Point associated with the Volume, etc., but can't make the link to the physical disk.
Any help is appreciated.

Unfortunately there isn't an association class between mount points and physical disks like there is between logical and physical disks. I did a blog about finding partition alignment which required using Win32_LogicalDiskToPartition class. One of the comments
suggested using Sysinternals diskext as workaround. See comments:
http://sev17.com/2009/02/disk-alignment-partitioning-the-good-the-bad-the-ok-and-the-not-so-ugly/

How to collect physical and logical disk counters using query?

Hai friends, i want to view physical and logical disk counters in sql server like Avg. Disk sec/Read, Avg.
Disk Bytes/Read, Avg. Disk sec/Write, Avg.
Disk Bytes/Write, etc., Can anyone tell me how to vies this by using query?
Thanks in advance..

Hai friends, i want to view physical and logical disk counters in sql server like Avg. Disk sec/Read, Avg.
Disk Bytes/Read, Avg. Disk sec/Write, Avg.
Disk Bytes/Write, etc., Can anyone tell me how to vies this by using query?
Thanks in advance..
Hello,
Sys.dm_os_performance counter will only show counters related to SQL server not Physical disk if you run below query in SQL server it will not return any value so no disk counter is present.You will have to see it using perfmon.
select * from sys.dm_os_performance_counters where counter_name like '%disk%'
This can also be done through power shell but I dont have experience with that.You can search net for power shell query to see Windows perfmon counters
Please mark this reply as the answer or vote as helpful, as appropriate, to make it useful for other readers

SQL 2014 cluster installation on mounting point disks error: Updating permission setting for file

Dear all,
I am attempting to install SQL 2014 fail over cluster under a physical windows 2012 R2 server which have mounting point disks.
At the finish of setup I get the following error message.
Could you please help me on this?
Thanks
The following error has occurred:
Updating permission setting for file 'E:\Sysdata!System Volume Information\.....................................' failed. The file permission setting were supposed to be set to 'D:P(A;OICI;FA;;;BA)(A;OICI;FA;;;SY)(A;OICI;FA;;;CO)(A;OICI;FA;;;S-1-5-80-3880718306-3832830129-1677859214-2598158968-1052248003)'.
Click 'Retry' to retry the failed action, or click 'Cancel' to cancel this action and continue setup.
For help, click: go.microsoft.com/fwlink
I am using an administrator account which have all security rights (cheched on secpol.msc mmc) needed for installation.

Hi Marco_Ben_IT,
Do not install SQL Server to the root directory of a mount point, setup fails when the root of a mounted volume is chosen for the data file directory, we must always specify
a subdirectory for all files. This has to do with how permissions are granted. If you must put files in the root of the mount point you must manually manage the ACLs/permissions. We need to create a subfolder under the root of the mount point, and install
there.
More related information:
Using Mount Points with SQL Server
http://blogs.msdn.com/b/cindygross/archive/2011/07/05/using-mount-points-with-sql-server.aspx
I’m glad to be of help to you!
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected]

Name : leopard Type : Volume Disk Identifier : disk1s2 Mount Point

Early in October, after installing SL and the first upgrade, I began experiencing colour flashes on transitions on slideshow projects created in iMovie '09. I contacted Apple Support and began working with one of the technicians. She reported that after viewing a short sample slideshow/movie that I sent her, Apple engineers concluded that something in SL was interfering with the video card. So far, no fix from Apple.
One workaround suggested by a reader on these support discussions was to install Leopard on an external drive and work with iMovie from there. My contact person helped me connect and set up the external drive. She also talked me through steps that allowed me to continue using iMovie '09, my photos in iPhoto, and the iTunes Music Library on my internal drive to build my slideshows and have all of this 'show up' on the external drive. Really, all I was doing on the external drive was using iMovie to export my project and create a *.mov file.
Until three days ago, I hadn't tried to access the external drive for about a month and I found that I couldn't. I called Apple Support again for help. In the end, the person I was working with suggested that he would get in touch with my first contact to see if written instructions could be sent to me so that I could repeat her process. At the same time, he suggested I ask for help here. When I first noticed the problem, the icon for the external drive was on my desktop; today it isn't. Below is the information that is relevant (I hope).
*+From Disc Utility: Information on External Drive+*
Name : leopard
Type : Volume
Disk Identifier : disk1s2
Mount Point : Not mounted
File System : Mac OS Extended (Journaled)
Connection Bus : USB
Device Tree : IODeviceTree:/PCI0@0/USB7@1D,7
Writable : Yes
Universal Unique Identifier : CED756E6-8A72-33BB-B79B-469908923E54
Capacity : 999.16 GB (999,157,620,736 Bytes)
Owners Enabled : No
Can Turn Owners Off : Yes
Can Be Formatted : Yes
Bootable : Yes
Supports Journaling : Yes
Journaled : No
Disk Number : 1
Partition Number : 2
*+Information from First Aid/Repair Disc+*
Invalid node structure
The volume leopard could not be verified completely.
Error: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.
*+Information at bottom of Disc Utility Window:+*
Mount Point : Not mounted Capacity : 999.16 GB (999,157,620,736 Bytes)
Format : Mac OS Extended (Journaled) Available : -
Owners Enabled : - Used : -
Number of Folders : - Number of Files : -
I have no idea what is wrong or what to do now. I do know that the first thing is to reformat the drive, but I don't know how to do that. The second thing will be to install all the upgrades so that both internal and external drives are exactly the same - that I can manage! The third thing is to figure out how to get back to the original set up.
If anyone can help or point me to sites that will tell me how to do any or all of this, I will be most appreciative.

{quote:}I wanted help with two things: (1) getting the external HD back up and (2) reestablishing the connections that had been made so that iMovie, iPhoto, and iTunes pointed back to those applications and libraries on the internal HD. In other words, before I lost the connection to the external HD, when I clicked on iMovie on the external HD, what opened was iMovie on the internal HD, with all of my projects available. Same with the other two.{quote}
To be honest I'm not sure why you were opening an Applications from the External HD and pointing it to the Library on the Internal HD? Seem's like it would be a lot simpler and easier just to open and run everything right from the Internal HD. Some folk's will open and run the Application from there Internal HD and then point it to the Library on the External HD, but you need to be very careful doing so because if the external HD fails then you lose your data.
{quote:}Until about 3 hours ago, I couldn't use Disk Utility to erase the external HD and start over because the icon wasn't showing in the Devices panel. I have been at this all day and finally the icon did appear and I erased the external drive. After 4 attempts to reinstall Leopard OS, that, too finally worked. I have now reinstalled iLife '09 and all of the necessary upgrades.{quote}
Not sure why you lost the connection to the External HD, could be just a bad connection or a early warning sign for a failing drive?
{quote:}I knew that if I erased the external HD I would lose all of the connections I had between the two drives. That was why I was hoping for a way to fix it without erasing. So now I need help with (2) above: reestablishing those connections. I'm afraid I don't understand partitioning - what it is or what it does. If you have time to explain it to me, I will certainly give it a try.{quote}
I think you need to run everything from your Internal HD and only use the External HD as a backup drive either with Time Machine or on the great advise of elmac using SuperDuper.
As for Partitioning and Formatting I can give you some article's to study, but would suggest not fussing or experimenting unless you had a second External HD to play around with.
Dennis

Airport Extreme 802.11n sharing a disk with a -1 on the mount point

First I have to reboot the device once a day because of the disk that disconnect for no reason like many other on the list ever since I upgraded to 7.2.1 but not sure that as to do with this problem.
Here's is the deal, I have an Airport Extreme 802.11n with a 500GB shared on the USB port. I want to use my iPhoto Library on the 500GB. It's about 11GB, I have tranfered the library over and iPhoto is asking to choose the library I want to use. When I try to point it to the 500GB everything is greyed out. When I use a terminal and do a df command to show the mount point on my computer, I get
/Volumes/500GB-1
Why and where the -1 is coming from?
How can I get /Volumes/500GB only?
One thing I have noticed about the -1 is when I loose the disk connection it prompt me to disconnect 500GB-1 but sometime even with a -2 and -3.
Thx!

can I hook up my printer, scanner and external harddrive through a usb hub?
Partially, a large number of USB printers will work with the AirPort Base Stations' USB port, but not all. I suggest that you checkout the following iFelix site to see if your printer is compatible. Similiarly, most external USB hard drives should work as well.
However, devices that rely on two-way communications, like copiers and scanners, won't work when connected to the USB port.

Time Machine (OSX) doesn't back up files in Mount Point or Disk Image File

Hi all,
I have two disk images which are scripted to be mounted on login. These two disk images are always mounted to the same location. These two disk images are encrypted TrueCrypt volumes.
Time Machine (TM) will only back up the disk images the first time they are mounted, but not after that. As I modify documents within the volumes throughout the day, the modified timestamps are adjusted properly. However, TM does not back them up. TM never backs up the mount points which are two folders within my home directory.
Any ideas as to why neither the mount point or the image files are backed up? Do the image files have to be closed (unmounted) after being modified for TM to back them up?
Now if TM won't back up the image files because they are locked/open, then why does it back them up the first time even though they are mounted? Also, from what I've read, TM should back up any HFS+ drive which is mounted. Both these drives are HFS+, so it should back up the mount points? I can verify this by doing a 'mount' in the terminal, the following is echo'd back:
/dev/disk0s2 on / (hfs, local, journaled) (Main System Drive)
/dev/disk1 on /Users/username/Folder1 (hfs, local, nodev, nosuid, journaled, noowners, mounted by username) (First TrueCrypt volume)
/dev/disk2 on /Users/username/Folder2 (hfs, local, nodev, nosuid, journaled, noowners, mounted by username)(Second TrueCrypt volume)
Any ideas will help!
Thanks,
Chris
Message was edited by: sleagle328

Here is the resolution:
Apparently time machine checks the parent folder's timestamp before moving into that folder to look for modified files.
So as I was modifying files, the timestamps on the volumes were changing but not the containing directory. Because of this, TimeMachine saw the parent directory had not changed, so did not look for the changed volumes inside.
So to resolve this, I wrote a simple touch script which touches the parent directory to match the modified volumes timestamp (if there is a modified volume).
Thanks,
Chris
Message was edited by: sleagle328

Unexpected disconnection external disk and different mount points

Dear community,
I have an application that needs to read and write data from an external disk called "external"
If the volume is accidentally unmounted by unproperly pluggin it off), it will remount as "external_1" in the terminal,
and my app won't see it as the original valid destination.
According to this documentation:
https://support.apple.com/en-us/HT203258
it needs a reboot to be solved, optionally removing the wrong unused mount points before rebooting.
Would there be a way to force OSX remounting the volume on the original mount point automatically?
or checking the disk UUID and bypassing the different mount point name (app or os level?)
Thanks for any clue on that.

See DUMPFILE

How can we find out the disk which is used for a mount point

How can we find out the disk which is used for a mount point?
one of our mount point(/u03/oracle/prod) was using high I/O and this was causing slowness in the server.
I can see a disk operation error in errpt at the same time as below. Wanted to check whether the mount point /u03/oracle/prod is using the disk hdisk31
$errpt|more
IDENTIFIER TIMESTAMP T C RESOURCE_NAME DESCRIPTION
DXB78877 1125032114 T H hdisk31 DISK OPERATION ERROR
OS version:AIX 6.1
DB:11.2.0.2

this is the output for cat /etc/filesystem
/u02:
        dev             = /dev/fslv00
        vfs             = jfs2
        log             = /dev/loglv00
        mount           = true
        options         = rw
        account         = false
/u01:
        dev             = /dev/fslv01
        vfs             = jfs2
        log             = /dev/loglv00
        mount           = true
        options         = rw
        account         = false

Default OS performance counters processor, memory, logincal disk are missing in windows 2008 standard server

I have a windows 2008 standard server in which the default OS performance counters counters processor, memory, logincal disk are missing.
I tried using exctrlst.exe tool. This tool shows that the respective performance counters are already enabled but when I check in perfmon.msc, these counters are not visible.
I also tried to rebuild the performance counters from the OS disk. but it did not worked. still the counters are missing.
Because of these counters are missing, am unable to monitor the utilization of CPU, memory and disks.
any suggestions, workaround, recommendations or solutions. it will be more helpful and highly appreciated !!!!.
Regards,
GK.
GK

Hi GK,
According to your description, it seems that the issue was the same as the one described in the article below. If you are running Windows Server 2008 64-bit, you can check the KB below:
http://support.microsoft.com/en-us/kb/2554336
In addition, the articles below would also be helpful to you:
How to manually rebuild Performance Counter Library values
Missing Performance Counters
Best regards,
Susie
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact [email protected]

Determining disk image mount point

Is there a command line util that I can use to determine the name of the disk image as mounted on the desktop? This question presumes the actual mount point name is not the same as the disk image name.

Parsing hdiutil info output seems to work here:
hdiutil info | awk -F'/Volumes/' '/Apple_HFS/ {print $2}'
Cole

Logical Disk (Mount Point) Performance Counters

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