on 8-22-2008 9:07 AM Lorenzo Quatrini spake the following:
nate ha scritto:Lorenzo Quatrini wrote:I have few disk that have offline uncorrectables sectors;Ideally it should be done using the manufacturer's tools, and really any disk that has even one bad sector that the OS can see should not be relied upon, it should be considered a failed disk. Disks automatically keep spare sectors that the operating system cannot see and re-maps bad sectors to them, if your seeing bad sectors that means that collection of spares has been exhausted. I've never seen a disk manufacturer not accept a disk that had bad sectors on it (that was still under warranty) in as long as I can remember.. nateFor what I understand Offline uncorrectable means that the sector would be relocated the next time it is accessed for writing... so it is on a "wait for relocation" status. I don't know of any other way to force this relocation other tha actually writing over the sector (a simple read doesn't trigger the relocation)... And yes, I know that a disk with bad blocks isn't reliable, but you remember? I'm too lazy to send my home disks back to the manufacturer ;)
Then I hope you are not too lazy to do some proper backups!Sending a disk back to be replaced is a lot less work then recovering a failed array when the disk tanks. How much is your data worth? I know by experience that a 6 drive raid 5 array can run near $10,000 US to recover.
-- MailScanner is like deodorant... You hope everybody uses it, and you notice quickly if they don't!!!!
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