Learn how to a build a cloud-first strategyRegister Now

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 407
  • Last Modified:

SBS Problem with NTFS flagging data drive 'dirty' and causing people to be unable to save there

Hi, on sporadic occasions (once in the last 4 weeks and 3 times in the week prior) our data drive flags as dirty and we then have problems saving data onto there (and i worry that we may  be losing data too). When a chkdsk /x is performed various error messages are raised and none are consistently present, sometimes problems with MFT, sometimes security descriptors.

The discs are 15k SAS used in RAID 10 on PERC 5i with a hot spare.

I had a similar problem a lot of years ago and it turned out to be extremely long path/name combinations so i exported a 'dir' command of the entire disk and used excel to display the total length of the path/title and sort them by this length. I renamed or deleted anything which was greater than 180 characters but in this case it has not helped.

Does anyone have any help they can share please?

Thanks

Wesley
0
Concept_Wes
Asked:
Concept_Wes
  • 4
  • 3
1 Solution
 
pgm554Commented:
How is the cache on the PERC set up ,wright back or write through?

Dynamic or traditional volumes?

Anything in the performance logs?

Which version of SBS?
Have you run the SBS best practices analyzer?
0
 
Concept_WesAuthor Commented:
Hi,

The RAID level is 5 on the problematic virtual disk, the read policy is No Read Ahead, and the write policy is Write Through. The Disk Cache policy is disabled.

It is a traditional volume created through Acronis Disk Director 2011 Server.

I am unsure of the key counters in the performabce monitor - please could you elaborate?

It is version 2008 SBS, the best practices analyzer has not shown anything regarding this of note, just a few missing patches.

Thanks

Wes
0
 
pgm554Commented:
You can try this and see if the issues go away.

Click on the Start menu and open the run dialog.
2. Type "cmd" and return (without quotes)
3. Next type "fsutil dirty query <letter of drive that chkdsk keeps checking>" (for example, C:
4. If the returned message indicates that the volume is dirty, go to step 5
5. Next type "chkdsk <drive letter> /f /x"
If you get this below answer YES.
Chkdsk cannot run because the volume is in use by another
process. Would you like to schedule this volume to be
checked the next time the system restarts? <Y/N>
6. After that finishes, repeat step 3.
7. If the volume is no longer dirty, reboot and chkdsk should not reappear.

You could also run a consistency check on the PERC virtual containers to see if there are any parity errors.

The other things I would look at would be firmware levels for the controller and  device drivers for it.
0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 
pgm554Commented:
I also would seriously look at the Acronis disk director as a possible culprit too .I have seen way too many issues with 3rd party apps.

Also ,are you running any defrag apps (like Diskeeper)?
What's your backup app?
0
 
Concept_WesAuthor Commented:
pgm554,

The fsutil command brings back no dirty bit being set, however the chkdsk (which is a data partition n:) completes perfectly with the :

Correcting errors in the master file table's (MFT) BITMAP attribute.
Windows has made corrections to the file system.

at the end of each run (I must have done this 30 times today to see if I can see the back of it.

I am running the parity check now (is it the consistency checker in OpenManage?) - the firmware levels are all up to date as per the Dell website and get green ticks in the OpenManage interface. I will post back the results of the consistency checker when complete.

I am suspicious of the creation tool too as I have done quite a bit of research around this and some other sites pointed to this - problem however is that i cannot shrink resize and re-initiate this huge partition until I can guarantee the consistency of it - catch 22! I use the inbuilt backup program and no defrag apps.

Thanks again

Wes
0
 
pgm554Commented:
0
 
Concept_WesAuthor Commented:
Guys, thanks so much for the help - I managed to move all data onto a temporary drive and delete the partition, then recreate using Computer Manager in Administrative tools, and moving data back - all seems to be well for now!

Can only assume that the partition created by Acronis was to blame?

Thanks

Wes
0

Featured Post

Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

  • 4
  • 3
Tackle projects and never again get stuck behind a technical roadblock.
Join Now