On Tue, Nov 19, 2002 at 04:08:22PM -0800, Manish Lachwani wrote:
> I have seen this errors on Seagate ST380021A 80 GB drive on a large scale in
> our storage systems that make use of 3ware controllers. Seagate claims the
> following reasons:
>
> 1. Weak Power supply
> 2. tempeature and heat
> 3. vibration
You might want to pay particular attention to #2. See below.
> Although, the maxtor 160 GB drives do not show such problems at all. Such
> problems can be eliminated though. From the SMART data, get the bad sectors
> and remap them by writing to the raw device. Those pending sectors will get
> remapped. However, the problems will persist with these drives. In our
> boxes, the operating temperature is abt 55 C ...
Unless they're really really new, the 160GB Maxtor drives are 5400RPM
so they put out far less heat. (The fact that the Maxtors are ball-bearing,
vs. the Seagates' fluid bearings, also helps in this regard --
fluid-bearing drives tend to dissipate more heat.)
55 C is technically within the Seagate specs, but it's arguably a bit on
the high side. If possible, it might be interesting to bring it the
temperature down several degrees and see if the reliability improves.
-Barry K. Nathan <bnathan@math.uci.edu>
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This archive was generated by hypermail 2b29 : Sat Nov 23 2002 - 22:00:30 EST