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HDD fails at pressure increase: MHY2080BH vs MHZ2080BH
One of our clients have experienced issues with Fujitsu hard disk drives of type MHZ2080BH. If the surrounding pressure increases, the hard disk drive fails.
We have supplied a number of Fujitsu MHY2080BH (2.5" SATA 5400RPM 24/7 ESW.) Does anyone have any knowledge or experience with these? What are their differences or similarities? Are they more or less likely to fail than the other type?
Computers are placed in pressurized cabinets as the equipment is placed in an Ex zone. The pressure is not particularly high, but must be higher than outside the cabinet. Hard disk drives tend to fail during the purging phase.
We have supplied a number of Fujitsu MHY2080BH (2.5" SATA 5400RPM 24/7 ESW.) Does anyone have any knowledge or experience with these? What are their differences or similarities? Are they more or less likely to fail than the other type?
Computers are placed in pressurized cabinets as the equipment is placed in an Ex zone. The pressure is not particularly high, but must be higher than outside the cabinet. Hard disk drives tend to fail during the purging phase.
All hard drives are typically sealed with the exception of a ventilation hole to equalize pressure. You may want to check some stats on the size hole those drives have. Also, may I ask why you are doing this?
ASKER
We have had pressurized cabinets for a decade and this has not ben a problem before. A competitor have replaced 500 Fujitsu MHZ's with this pressure problem with Hitachi disks and that solved the problem for them.
We are discussing whether to replace all our delivered systems with hard disk drives that have not previously failed. We have no reports of failure for this reason, but our client wants to be assured as we are using HDD's of the same make.
Just as a note to those that think there is manual pressure on the disks. We are here talking atmospheric pressure. (dmanisit, you got it right.)
We are discussing whether to replace all our delivered systems with hard disk drives that have not previously failed. We have no reports of failure for this reason, but our client wants to be assured as we are using HDD's of the same make.
Just as a note to those that think there is manual pressure on the disks. We are here talking atmospheric pressure. (dmanisit, you got it right.)
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ASKER
Haven't really come to a great conclusion here. Will post if I figure out something valuable. Thanks for your help.