I purchased 8 of these:
Model Family: HGST Ultrastar He8
Device Model: HGST HUH728080ALN600
I tested each one of them individually and checked their smart counters before and after testing.
Before testing, 7 drives had this smart counter:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 22 Helium_Level 0x0023 100 100 025 Pre-fail Always - 100
The 8th drive had this set to 057 straight from out of the packaging.
After testing, 6 drives are still at 100, but one of them is down to 80.
I need to know is this oke and expected behavior, or do I need to return the ones that are down? I can see the treshold is 25 but I don’t think I should reach that within days or weeks? Helium escapes slowly, with 5 year warranty I would expect after 5 years these are still at a reasonable level?
Is there any info anywhere about this?