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About CTV

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  1. Hi Not sure if this is the right forum as its more a general storage question... I have done a bit of research regarding this new 4K standard "Advanced Format" (AF) of storage drives. I must admit I am a bit lost at this stage. According to Wikipedia (http://en.wikipedia....Advanced_Format), these drives have a changed sector size of 4096 bytes (or more commonly known as 4K), instead of the more traditional 512 bytes sector format. Currently I have 3 drives in my machine: 1X OCZ Vertex 3 SSD, 1X 1TB Seagate and 1X 500GB Seagate. This past weekend I purchased a 3TB Seagate which I will replace the 500GB drive. Since the new drive is of this AF variety, I decided to look into what it actually means. According to Seagate, if one has a 64bit Windows 7 machine (which I have), along with a EUFI BIOS (which I have as well), one will be able to natively hook up and utilize all 2.7-odd TB of the disk in GPT mode for both a master boot disk as well as a secondary disk - which again is the case and no worries here. When formatting the new drive, it defaults to an Allocation Unit Size of 4096 bytes (4K). After some investigation, I discovered that this "Allocation Unit Size" refers to the Cluster size and NOT the Sector size as I originally thought it to be. Even if I run checkdsk from CMD, it comes up with the same value of 4096 for bytes in each allocation unit - but again this refers to Cluster Size and NOT Sector size (http://support.microsoft.com/kb/245436). I did some further searching and found another command from CMD wmic partition get BlockSize, StartingOffset, Name, Index which according to one chap (http://superuser.com...rnal-hard-drive) should show the actual Sector size. For all my drives it shows a BlockSize (Sector size) of only 512 bytes! I even confirmed this using other Acronis and Paragon tools. I know that I did partition and format all my drives on this 64bit instance of Windows 7 and according to Seagate, Windows 7 should be "aware" of this AF standard. From what I understand this AF standard relates to the Sectors and NOT the Clusters of disks. Should all my drives' Sectors values be 512 bytes or is this wrong? I have read a bit about disk misalignment, is this the case? Should I change anything on my side? Many thanks. Looking forward to some helpful input. CTV
  2. CTV

    New to forum

    Hi I am new to this forum. I had a look at the forum sections and noticed there was a clear differentiation between regular HDDs & SSDs. What if my question relates to both? More specifically this 4K Adavanced Format (AF) for storage drives in general? Under which forum should I post? Thanks