Changes between Version 31 and Version 32 of BadBlockHowto


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Timestamp:
Jun 1, 2023, 10:49:12 PM (12 months ago)
Author:
Artoria2e5
Comment:

oops. minor fixes

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  • BadBlockHowto

    v31 v32  
    566566In either case, remapping will fetch an unused spare sector from the current zone while adding the damaged old sector to the GLIST (hence the name ''grown'' list). The difference is in the `REASSIGN STATUS` field from Background Scan Results, which describes how a reassignment happened. The contents of the GLIST may not be that interesting but `smartctl` prints out the number of entries in the grown list and if that number grows quickly, the disk may be approaching the end of its useful life.
    567567
    568 Here is an alternate brute force technique to consider: if the data on the SCSI disk has all been backed up (e.g. is held on the other disks in a RAID 5 enclosure), then simply reformatting the disk with [`sg_format` https://manned.org/sg_format.8] may be the least cumbersome approach.
     568Here is an alternate brute force technique to consider: if the data on the SCSI disk has all been backed up (e.g. is held on the other disks in a RAID 5 enclosure), then simply reformatting the disk with [https://manned.org/sg_format.8 `sg_format`] may be the least cumbersome approach.
    569569
    570570(In the ATA command set, the OS is not given access to such fine-grained control as in SCSI. The equiavelant of AWRE nearly always happens, so all you do is write over the defect. You also don't get an LBA-level format operation, only "security erase".)
     
    639639
    640640* Seagate's Seachest and openSeaChest provide a [https://github.com/Seagate/openSeaChest/blob/3fc1fb6154f079e6db4cec35bb8971205a68fc10/docs/openSeaChest_GenericTests.191.txt `openSeaChest_GenericTests`] utility that performs non-smart testing by ordinary read and write (as a result, it can do a "selective" test on SCSI). It can be configured to reassign any bad sectors fount. It understands SCSI error-recovery flags and acts accordingly.
    641 * Also in (open)!SeaChest is the `openSeaChest_SMART` utility. It performs SMART self-tests instead of a generic test, but has the same ability to reassign (getting locations from on SMART error log).
     641* Also in (open)!SeaChest is the `openSeaChest_SMART` utility. It performs SMART self-tests instead of a generic test, but has the same ability to reassign (getting locations from SMART error log).
    642642* There are scripts on the internet that parses `smartctl` output and runs `hdparm`, but with seaChest they should be considered obsolete.
    643643