Seagate Archive HDD

O'Connor, Daniel darius at dons.net.au
Fri Mar 27 03:46:38 UTC 2015


> On 27 Mar 2015, at 14:08, Xin Li <delphij at delphij.net> wrote:
> On 3/26/15 17:58, Adrian Chadd wrote:
>> ... all the talk about this stuff, and yet noone's talked about
>> how ZFS is supposed to be append only, and boy wouldn't that be
>> awesome. :)
> 
> It doesn't overwrite existing data with the assumption that a, let's
> say, 4K-native drive doesn't have a 1MB "band" when writing.
> 
> I hope the "journal" would be helpful for this assuming it is on
> non-volatile medium...

The journal for the existing drives appears to be on the actual platter (but not shingled obviously).
This gives from pretty suboptimal write latency as you can probably imagine..

--
Daniel O'Connor
"The nice thing about standards is that there
are so many of them to choose from."
 -- Andrew Tanenbaum
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