Find out which process prevents the hard drives from spindown

From QNAPedia

1. Download the diagnostic program from one of the following links:

   • ftp://csdread:csdread@ftp.qnap.com/NAS/spindown/blkdevMonitor.sh
   • http://eu1.qnap.com/Storage/tsd/spindown/blkdevMonitor.zip

2. Copy the program to the Public folder of the NAS
3. Login to the NAS by ssh port 22 with admin username/password. If you don’t know which ssh client should be used, you can try putty on the following link:

   • http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html

4. After login, copy the blkdevMonitor.sh script to root folder by the following command:

   cp /share/Public/blkdevMonitor.sh /root

5. Change the file to be executable by the following command:

   chmod 766 /root/blkdevMonitor.sh

6. Run the program by the following command:

   /root/blkdevMonitor.sh

7. Wait for a few minutes(depend on your spindown time settings) to see if any process is accessing the HDD (WRITE block or READ block) or not. Send us the result for us to check which process wake the HDD.

Instructions in PDF and a sample of result can be found on one of the links:

• ftp://csdread:csdread@ftp.qnap.com/NAS/spindown/How%20to%20know%20which%20process%20prevents%20the%20NAS%20HDD%20from%20spindown.pdf
• http://us1.qnap.com/Storage/tsd/spindown/spindown_detection_instruction.zip