Does anyone out there understand the decision to store ZFS uberblocks in a _continuous_ array?
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Replying to @cmuratori
@cmuratori It seems to me that is basically just asking to have that array (which will all be on one SSD page) get wiped out together.1 reply 0 retweets 0 likes -
Replying to @cmuratori
@cmuratori Why wouldn't you store uberblocks _strided_ across the drive instead?1 reply 0 retweets 0 likes -
Replying to @cmuratori
@cmuratori The ZFS people seem smart so I'm wondering if I'm just not getting why it's not a problem for the uberblocks to be contiguous.1 reply 0 retweets 0 likes -
Replying to @cmuratori
@cmuratori I'm guessing uberblocks are replicated. And they are probably not striped because syncs across disks aren't transactional.4 replies 0 retweets 0 likes -
Replying to @won3d
@won3d@cmuratori (1) "Each disk in the pool has four copies of this 128 slot array" http://utcc.utoronto.ca/~cks/space/blog/solaris/ZFSHowMetadataUpdates …1 reply 0 retweets 0 likes
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