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"Compress attribute" is greyed out in windows server on D drive which is NTFS.

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Hi,

I have a windows 2008 R2 DC server with Two drives C and D.. both are NTFS drive. C drive is local and D drive is connected with NAS MD 3200 drive . In C drive the compress atribute is working fine however in D drive the compress atribute is not highlighted. Is there anyone to help me understand why the option is not highlighted on D drive only. please find the bellow screenshot for refernce.

Thanks & regards,

Masud Hussain

Friday, May 31, 2013 2:19 PM

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This is because NTFS file compression is not possible on drives that have a larger cluster size than 4K. Please check the below KB.

Default cluster size for NTFS, FAT, and exFAT
http://support.microsoft.com/kb/140365

How To Determine Your Hard Disks Cluster Size
http://support.microsoft.com/kb/245436
- Marked as answer by Masud Talukdar Tuesday, June 4, 2013 9:37 AM
Monday, June 3, 2013 5:51 AM

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This is because NTFS file compression is not possible on drives that have a larger cluster size than 4K. Please check the below KB.

Default cluster size for NTFS, FAT, and exFAT
http://support.microsoft.com/kb/140365

How To Determine Your Hard Disks Cluster Size
http://support.microsoft.com/kb/245436
- Marked as answer by Masud Talukdar Tuesday, June 4, 2013 9:37 AM
Monday, June 3, 2013 5:51 AM
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Thanks ZHANG

Tuesday, June 4, 2013 9:38 AM