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Seagate 2TB, over 500 reallocated sectors
Got an automated message from smartd about a change in the SMART
status of a 2TB Seagate drive, shows 584 bad/reallocated sectors. Confirmed in Gnome Disk Utility. Seatools extended test and SMART extended test inist the drive is OK. I also ran a "secure erase" on the drive, which should write patterns to every block on the disk, and the bad sector count did not increase. So the drive is showing some signs of internal distress but is currently stable. I know that bad block forwarding is a normal part of drive operation, but the number of bad blocks seems pretty high. Should this drive be sent back under warranty? (Which means of course taking a chance on a "recertified" drive...) -- Roger Blake Change "invalid" to "com" for email Google Groups killfiled |
#2
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Seagate 2TB, over 500 reallocated sectors
Roger Blake wrote
Got an automated message from smartd about a change in the SMART status of a 2TB Seagate drive, shows 584 bad/reallocated sectors. Confirmed in Gnome Disk Utility. She's dying, Jim. You into necrophilia ? Seatools extended test and SMART extended test inist the drive is OK. Those are irrelevant. What matters is the actual data, the 584 sectors. I also ran a "secure erase" on the drive, which should write patterns to every block on the disk, and the bad sector count did not increase. Is there any possibility that the drive may have been running stinking hot for a while and now isnt ? So the drive is showing some signs of internal distress A lot of sign of that in fact. but is currently stable. I know that bad block forwarding is a normal part of drive operation, but the number of bad blocks seems pretty high. Yes, that's much too high. Should this drive be sent back under warranty? Depends on how long more of warranty it's got left. (Which means of course taking a chance on a "recertified" drive...) Yeah, but the only real alternative is to bin it. |
#3
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Seagate 2TB, over 500 reallocated sectors
On 2013-10-01, joshua wrote:
She's dying, Jim. You into necrophilia ? About what I figured. I don't think it was running hot, there's a fan blowing directly on it. I'll send it to Seagate and see how long the recert that they send back lasts... -- Roger Blake Change "invalid" to "com" for email Google Groups killfiled.) |
#4
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Seagate 2TB, over 500 reallocated sectors
On 10/1/2013 12:05 PM PT, joshua typed:
She's dying, Jim. You into necrophilia ? You love saying that, eh? :P -- "Why would you want a glow in the dark ant farm?" --Leonard; "They do some of their best work at night." --Sheldon from The Big Bang Theory S4E4 (The Hot Troll Deviation). /\___/\ Ant(Dude) @ http://antfarm.ma.cx (Personal Web Site) / /\ /\ \ Ant's Quality Foraged Links: http://aqfl.net | |o o| | \ _ / If crediting, then use Ant nickname and AQFL URL/link. ( ) If e-mailing, then axe ANT from its address if needed. Ant is currently not listening to any songs on this computer. |
#5
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Seagate 2TB, over 500 reallocated sectors
Roger Blake wrote:
Got an automated message from smartd about a change in the SMART status of a 2TB Seagate drive, shows 584 bad/reallocated sectors. Confirmed in Gnome Disk Utility. Seatools extended test and SMART extended test inist the drive is OK. They only mean tha drive sd "above threshold". Give that thresholds are cutomary set to over-optimistiv calues, that doe snot mean anything. I also ran a "secure erase" on the drive, which should write patterns to every block on the disk, and the bad sector count did not increase. It would not on writing. You have to read for that. So the drive is showing some signs of internal distress but is currently stable. I know that bad block forwarding is a normal part of drive operation, but the number of bad blocks seems pretty high. Should this drive be sent back under warranty? (Which means of course taking a chance on a "recertified" drive...) 500 reallocated is dying fast, unless an external cause (vibration, bad power, heat) is to blame. Nothing "stable" here. Arno |
#6
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Seagate 2TB, over 500 reallocated sectors
On 2013-10-02, Arno wrote:
500 reallocated is dying fast, unless an external cause (vibration, bad power, heat) is to blame. Nothing "stable" here. Strangely it is still running stably, no read errors reported at the OS level. (I've been playing around with it, nothing of value on the drive.) Usually when I see a drive with this many bad sectors it shows very obvious symptoms. This one seems content to avoid using the bad blocks and otherwise keep working. I'll let Seagate deal with it. -- Roger Blake Change "invalid" to "com" for email Google Groups killfiled |
#7
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Seagate 2TB, over 500 reallocated sectors
Roger Blake wrote:
On 2013-10-02, Arno wrote: 500 reallocated is dying fast, unless an external cause (vibration, bad power, heat) is to blame. Nothing "stable" here. Strangely it is still running stably, no read errors reported at the OS level. (I've been playing around with it, nothing of value on the drive.) It will eventually run out of spare sectors and then you will start to see them. At that time yiou get data-loss as well. Usually when I see a drive with this many bad sectors it shows very obvious symptoms. This one seems content to avoid using the bad blocks and otherwise keep working. I'll let Seagate deal with it. Couldbe a marginal component that has a high change of recovering problematic sectors. Arno |
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