Thank You Linh for the info. Started reading about this solution. Could be lot of cost savings, need to check about the limitations though. Not sure how it works with Openstack as a front end to Ceph with Erasure Coded pools in Luminous.
Thanks, Pardhiv Karri On Thu, May 24, 2018 at 6:39 PM, Linh Vu <[email protected]> wrote: > You can use erasure code for your SSDs in Luminous if you're worried about > cost per TB. > ------------------------------ > *From:* ceph-users <[email protected]> on behalf of > Pardhiv Karri <[email protected]> > *Sent:* Friday, 25 May 2018 11:16:07 AM > *To:* ceph-users > *Subject:* [ceph-users] Can Bluestore work with 2 replicas or still need > 3 for data integrity? > > Hi, > > Can Ceph Bluestore in Luminous work with 2 replicas using crc32c checksum > which is more powerful than hashing in filestore versions or do we still > need 3 replicas for data integrity? > > In our current Hammer-filestore environment we are using 3 replicas with > HDD but planning to move to Bluestore-Luminous all SSD. Due to the cost of > SSD's want to know if 2 replica is good or still need 3. > > Thanks, > Pardhiv Karri > > > -- *Pardhiv Karri* "Rise and Rise again until LAMBS become LIONS"
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