Tag Archives: electronics

Dead HDD’s – design issue, or… ?

Few years ago we tried to use cheap SATA disks in HP disk enclosures as “cheap storage” (where information isn’t so important). Idea failed – none of disks tested supported TLER (~500x Samsung 1TB, ~200x Western Digital 1TB); and SmartArray controllers can’t handle such issues (disks tried to fix their issues for long time, controller decided that disk is dead, rebuild started, next disk dies, etc).

OK, TLER issue can’t be fixed (at least, without disk firmware disassembly), but what is causing disks to generate such amount of internal errors (1-2 disks in one 25-disk enclosure/week)?

Those disks are out-of service, so i disassembled few of them to check. So….

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