Talk:Hybrid drive
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Concerning "Lower recoverability" of Hybrid drive - not true
"What happens if the SSD portion of the drive fails?" Everyone with important documents and photos does not want to be left fighting for our data. The engineers assured me that in the unlikely event the SSD fails, then the algorithm accounts for the loss and it only stores the data on the physical drive. They also commented that the information stored on the SSD portion is mirrored on the physical drive as well, so no data will be lost with a failure of the SSD. In essence the device would act just like any other mechanical drive from that point forward. - source http://www.overclockersclub.com/reviews/seagate_momentus_xt_500gb/12.htm .wayfarer (talk) 09:03, 24 September 2010 (UTC)
The question that should be asked here is what happens to data that was written to the cache but not mirrored to the platter before the error occurred? This is the same read/write vulnerability found on high-performance cached RAID arrays. The comment above addresses what happens to subsequent write operations after the drive loses confidence in the SSD--but what mechanisms are in place to verify the data in the cache, or vice-versa? — Preceding unsigned comment added by 184.69.37.246 (talk) 15:55, 13 August 2012 (UTC)
Lower performance for small disk writes
Marked the claim that flash has lower performance than disk for small writes as dubious -- this does not seem to be consistent with benchmarking like the following: http://www.anandtech.com/show/4202/the-intel-ssd-510-review/4 (where the two non-SSD's bottom out the chart for 4KB random writes as they do for small random reads, and in general the SSD's write as fast or faster than they read).
Is this claim obsolete or does it mean something different than I think? Willhsmit (talk) 01:50, 4 March 2011 (UTC)
The key is probably with the random writes: the straight hard drives might write faster when at the correct position, but then need to mechanically move to the next place, while the SSDs and hybrids take longer for each write but have no seek time. Where the SSD's poor write hurts would probably be with small sequential writes, but that is rarely seen unless one intentionally disables output buffering. — Preceding unsigned comment added by 98.244.92.137 (talk) 04:51, 16 August 2011 (UTC)
I think it depends on how the drive implement caching. In the AnandTech review (http://www.anandtech.com/show/3734/seagates-momentus-xt-review-finally-a-good-hybrid-hdd) it suggested that the flash is a read only cache and it has the same poor small random write performance like traditional hard drive. — Preceding unsigned comment added by 12.47.208.59 (talk) 07:54, 21 September 2011 (UTC)
Fragment (Consider Revising)
On the last bullet of "Claimed drawbacks" section, it reads, "Hybrid hard drives, based on storage to both a flash component and a hard drive component, and bound to use by a specific OS (i.e., Windows Vista)." It's not understandable. Anybody with large knowledge of SDD, any correction? --"SimonOrJ"(U/T/C) 02:47, 1 May 2012 (UTC)
Inherent Flaws
The claim that these drives (or any failed hard-drive) can be "recovered" using destructive mechanical means such as freezing or hitting with a hammer is dubious at best. I've seen the anecdotal reports before, but I've NEVER been able to quote a source as saying that subjecting a failed drive to further mechanical stress will somehow magically fix it long enough to get the data off of it. — Preceding unsigned comment added by 184.69.37.246 (talk) 15:50, 13 August 2012 (UTC)
Freezing actually works I have used it by myself but I doubt about hiting it was hammer for what purpose? --85.115.110.103 (talk) 21:57, 21 August 2012 (UTC)
Tapping with the hammer is one I've heard but never used myself. Freezing is one I've done on a few occasions. Shove it in a closed bag in the freezer and get it out, copy over all the data, done.