alisafia
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compression
I am running Windows 2003 R2 ENT EDT.
I have attached 20TB to it. I don't see the compression feature under the general tab of 20TB drive "compress drive to save disk space option not available".
I am running another server with Windows 2003 R2 STD EDT with storage of 10TB, and it allows me to do compression.
Any ideas??
I have attached 20TB to it. I don't see the compression feature under the general tab of 20TB drive "compress drive to save disk space option not available".
I am running another server with Windows 2003 R2 STD EDT with storage of 10TB, and it allows me to do compression.
Any ideas??
Compression is only supported by partitions formatted with NTFS using a 4K cluster size. Run this command from a command prompt (as an Admin) to determine your cluster size -
fsutil fsinfo ntfsinfo c: | find /i "per cluster"
MarkMichael: are you sure? I've never heard mention of such a restriction ...
fsutil fsinfo ntfsinfo c: | find /i "per cluster"
MarkMichael: are you sure? I've never heard mention of such a restriction ...
... perhaps you're referring to the inability to both compress and encrypt the same file?
... perhaps you're referring to the inability to both compress and encrypt the same file?
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I am indeed. It was just a stab in the dark either way. Hopefully leading some light on the situation. obviously not :)
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I am indeed. It was just a stab in the dark either way. Hopefully leading some light on the situation. obviously not :)
ASKER
C:\Documents and Settings\bkadmin>fsutil fsinfo ntfsinfo e:
NTFS Volume Serial Number : 0x92a8c266a8c24885
Version : 3.1
Number Sectors : 0x00000009e2aff7ff
Total Clusters : 0x0000000013c55fef
Free Clusters : 0x0000000013c55962
Total Reserved : 0x0000000000000000
Bytes Per Sector : 512
Bytes Per Cluster : 65536
Bytes Per FileRecord Segment : 1024
Clusters Per FileRecord Segment : 0
Mft Valid Data Length : 0x0000000000010000
Mft Start Lcn : 0x000000000000c000
Mft2 Start Lcn : 0x0000000009e2aff7
Mft Zone Start : 0x000000000000c000
Mft Zone End : 0x0000000002796c00
NTFS Volume Serial Number : 0x92a8c266a8c24885
Version : 3.1
Number Sectors : 0x00000009e2aff7ff
Total Clusters : 0x0000000013c55fef
Free Clusters : 0x0000000013c55962
Total Reserved : 0x0000000000000000
Bytes Per Sector : 512
Bytes Per Cluster : 65536
Bytes Per FileRecord Segment : 1024
Clusters Per FileRecord Segment : 0
Mft Valid Data Length : 0x0000000000010000
Mft Start Lcn : 0x000000000000c000
Mft2 Start Lcn : 0x0000000009e2aff7
Mft Zone Start : 0x000000000000c000
Mft Zone End : 0x0000000002796c00
ASKER
the cluster size is 65536.
Raid Stripe is 64K
Let me call the Microsoft and I will keep you guys posted?
Raid Stripe is 64K
Let me call the Microsoft and I will keep you guys posted?
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ASKER
MSE-dwells:
Yes you are right. Microsoft said it has to be 4K.
http://support.microsoft.com/kb/302873
Yes you are right. Microsoft said it has to be 4K.
http://support.microsoft.com/kb/302873
ASKER
mikem:
kkrans:
I have already dealt this with the Microsoft tech.
C:\Documents and Settings\bkadmin>fsutil fsinfo ntfsinfo e:
NTFS Volume Serial Number : 0x92a8c266a8c24885
Version : 3.1
Number Sectors : 0x00000009e2aff7ff
Total Clusters : 0x0000000013c55fef
Free Clusters : 0x0000000013c55962
Total Reserved : 0x0000000000000000
Bytes Per Sector : 512
Bytes Per Cluster : 65536
Bytes Per FileRecord Segment : 1024
Clusters Per FileRecord Segment : 0
Mft Valid Data Length : 0x0000000000010000
Mft Start Lcn : 0x000000000000c000
Mft2 Start Lcn : 0x0000000009e2aff7
Mft Zone Start : 0x000000000000c000
Mft Zone End : 0x0000000002796c00
compression requires 4K clusters, if I do a format it then it tells me that format count is higher. if i format over 8k then compression is greyed out. if i do format under 8k then i get cluster count is too high.
ref: http://support.microsoft.com/kb/302873
kkrans:
I have already dealt this with the Microsoft tech.
C:\Documents and Settings\bkadmin>fsutil fsinfo ntfsinfo e:
NTFS Volume Serial Number : 0x92a8c266a8c24885
Version : 3.1
Number Sectors : 0x00000009e2aff7ff
Total Clusters : 0x0000000013c55fef
Free Clusters : 0x0000000013c55962
Total Reserved : 0x0000000000000000
Bytes Per Sector : 512
Bytes Per Cluster : 65536
Bytes Per FileRecord Segment : 1024
Clusters Per FileRecord Segment : 0
Mft Valid Data Length : 0x0000000000010000
Mft Start Lcn : 0x000000000000c000
Mft2 Start Lcn : 0x0000000009e2aff7
Mft Zone Start : 0x000000000000c000
Mft Zone End : 0x0000000002796c00
compression requires 4K clusters, if I do a format it then it tells me that format count is higher. if i format over 8k then compression is greyed out. if i do format under 8k then i get cluster count is too high.
ref: http://support.microsoft.com/kb/302873
Can you be more specific regarding some relevant reference on that page you linked me to. This isn't something I'm familiar with but that's likely beocause I've never attempted to use compression in production.
You can't have encrypted data on the same drive as compressed data.