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Hitachi HTS725032A9A364 vs Seagate ST320LT007 - 9ZV142 : better MTBF & performance
Posted on 2012-12-26
Hitachi HTS725032A9A364 vs Seagate ST320LT007 - 9ZV142
I'm looking at the above two HDDs, the Hitachi HDD comes
with Lenovo X220 while the Seagate HDD comes with Dell
E6230. Both have 7200rpm.
Q1:
Which of the two has better MTBF (as I had a few HDD
crashes before)
Q2:
Which has better IO performance/throughput?
Link below has specs for Hitachi, anyone has the
specs for Seagate?
http://www.ebay.com/ctg/Hitachi-Travelstar-7K500-HTS725032A9A364-320-GB-Internal-7200-RPM-2-5-0A72333-Hard-Drive-/82928111
I'm looking at the above two HDDs, the Hitachi HDD comes
with Lenovo X220 while the Seagate HDD comes with Dell
E6230. Both have 7200rpm.
Q1:
Which of the two has better MTBF (as I had a few HDD
crashes before)
Q2:
Which has better IO performance/throughput?
Link below has specs for Hitachi, anyone has the
specs for Seagate?
http://www.ebay.com/ctg/Hitachi-Travelstar-7K500-HTS725032A9A364-320-GB-Internal-7200-RPM-2-5-0A72333-Hard-Drive-/82928111
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5 Comments
Complete specs for that Seagate model: http://www.seagate.com/staticfiles/support/disc/manuals/notebook/momentus/Thin%20(.2)/100625253c.pdf
Active 3 days ago
Looks like the seek time for
Hitachi is : 1 ms
Seagate : 1.5 ms (track to track seek time)
11ms (average seek time, read)
but for external transfer rate, not sure if the following two refers to same thing:
Hitachi : 300Mbps
Seagate : 3Gbps (I/O data-transfer rate, max) ??
Hitachi is : 1 ms
Seagate : 1.5 ms (track to track seek time)
11ms (average seek time, read)
but for external transfer rate, not sure if the following two refers to same thing:
Hitachi : 300Mbps
Seagate : 3Gbps (I/O data-transfer rate, max) ??
Active today
300Mbps = 3Gbps because of the 8B/10B line encoding, to send 8 bits over the wire it is encoded into 10 bits. Same applies to many serial/parallel encodings, gigabit Ethernet has a clockrate of 1.25GHz for example. The max transfer rate isn't that important since the disk is nowhere as fast as the interface speed.
Active 3 days ago
The HDD model that comes with X220 our corporate get is
actually HTS723232A7A364 :
http://reviews.cnet.com/laptop-hard-drives/hitachi-travelstar-z7k320-hts723232a7a364/4507-9997_7-34207790.html
Track-to-Track Seek Time 1 ms
Average Latency 4.2 ms
Shock Tolerance 225 g @ 1ms half-sine pulse (operating) / 1000 g
@ 1ms half-sine pulse (non-operating)
actually HTS723232A7A364 :
http://reviews.cnet.com/laptop-hard-drives/hitachi-travelstar-z7k320-hts723232a7a364/4507-9997_7-34207790.html
Track-to-Track Seek Time 1 ms
Average Latency 4.2 ms
Shock Tolerance 225 g @ 1ms half-sine pulse (operating) / 1000 g
@ 1ms half-sine pulse (non-operating)
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