Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
November 1st, 2011, 9:45
Is there any significant improvement in disk I/O performance ?
I know hitachi align tool ,is there any generic utility to change sector size?
Anyone has implementeded it ? Curious to know.
November 1st, 2011, 22:51
If an AF drive is misaligned, then its write performance will be seriously degraded. This is because each misaligned write would require a read-modify-write cycle, ie an additional rotation of the platters. However, the drive's read performance would not be affected.
That said, Seagate's drives have a feature called SmartAlign which transparently handles misalignments in the firmware.
As for a tool "to change sector size", there is no such thing. Like Hitachi, WD also has an alignment utility, but AIUI these tools work by shifting the data, sector-by-sector.
November 2nd, 2011, 10:00
fzabkar
Thanks for nice explanation.
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