Re: Making CommitLog pluggable

2017-11-02 Thread 大平怜
Hello Michael, The page size of the flash is 4KiB. I have to ask someone else about the exact specification of the write endurance, but we have two products; as a backend flash device, one uses Samsung's PM963 M.2 NVMe SSD, and the other uses FibreChannel-attached IBM FlashSystem 840/900. Each w

Re: Making CommitLog pluggable

2017-11-02 Thread 大平怜
Hell Ariel, About the pluggability, we have discussed this topic in the dev list last May: https://www.mail-archive.com/dev@cassandra.apache.org/msg11102.html I don't think the whole community has reached a consensus, but the result of the discussion at that time was that 1) We were going to rele

Re: Making CommitLog pluggable

2017-11-02 Thread 大平怜
Sorry, not "rsync" but "fsync" Regards, Rei Odaira 2017-11-02 15:57 GMT-05:00 大平怜 : > Hello Michael, > > The page size of the flash is 4KiB. I have to ask someone else about > the exact specification of the write endurance, but we have two products; > as a backend flash device, one uses Sa