+1 ----- Original Message ----- From: "Larry Liu" To: "storage-discuss" Subject: [storage-discuss] Project proposal: multiple disk sector size support Date: Wed, 25 Mar 2009 14:11:04 +0800
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 _______________________________________________ storage-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/storage-discuss -- Be Yourself @ mail.com! Choose From 200+ Email Addresses Get a Free Account at www.mail.com
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