On Wed, Mar 25, 2009 at 8:11 AM, Larry Liu <[email protected]> wrote:
> I would like to propose a new OpenSolaris project called multiple disk sector
> size support. This project is to enable Solaris to support disks with
> variable sector size in powers of 2 starting at 512 bytes and upto 4096
> bytes, i.e: 1 KByte, 2KB or 4KB.
>
> The disk drive industry recognizes the need for a larger sector to maintain
> data integrity as areal density increases in future drives. Progressively
> more error correction code bytes are required at these higher areal densities
> which would increase overhead and reduce efficiency if the industry remained
> 512 byte sectors. A new sector standard for magnetic hard disk drives, 4096
> bytes, has been proposed replacing the previous 512 byte sector length. IDEMA
> and its members including Seagate, Maxtor, Hitachi GST, and Fujitsu have
> advocated for a new industry standard for large-block sectors. And the 4096
> bytes sector HDD will be released soon.
>
> This project is going to deliver large sector support into OpenSolaris with
> two phases
>
> Phase 1
> Support both VTOC and EFI labels;
> Support both raw and block disk IO;
> Support ZFS on non-root disk;
> Support XEN and LDOM on non-root disk
>
> Phase 2
> Boot support on large sector size disks.
> Installer support on large sector size disks
>
> I'd like to request endorsement by the Storage Developer community.
>
> Project leaders:
>
> Larry Liu
> Nikko He
> Bo Zhou
> Holly Vergara
> Grant Zhang
+1 to this project
--
Regards,
Cyril
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