Re: [ceph-users] BlueStore questions

Hi Frank, 2018-03-04 1:40 GMT+01:00 Frank Ritchie : > Hi all, > > I have a few questions on using BlueStore. > > With FileStore it is not uncommon to see 1 nvme device being used as the > journal device for up to 12 OSDs. > > Can an adequately sized nvme device also be used as the wal/db device

Re: [ceph-users] BlueStore questions

: domingo, 04 de marzo de 2018 1:41 To: ceph-us...@ceph.com Subject: [ceph-users] BlueStore questions Hi all, I have a few questions on using BlueStore. With FileStore it is not uncommon to see 1 nvme device being used as the journal device for up to 12 OSDs. Can an adequately sized nvme device

[ceph-users] BlueStore questions

Hi all, I have a few questions on using BlueStore. With FileStore it is not uncommon to see 1 nvme device being used as the journal device for up to 12 OSDs. Can an adequately sized nvme device also be used as the wal/db device for up to 12 OSDs? Are there any rules of thumb for sizing wal/db?

Re: [ceph-users] BlueStore questions about workflow and performance

Hi Mark, great to hear from you! On Tue, Oct 3, 2017 at 9:16 AM Mark Nelson wrote: > > > On 10/03/2017 07:59 AM, Alex Gorbachev wrote: > > Hi Sam, > > > > On Mon, Oct 2, 2017 at 6:01 PM Sam Huracan > > wrote: > > > > Anyone can help me? > > > > On Oct 2,

Re: [ceph-users] BlueStore questions about workflow and performance

On 10/03/2017 07:59 AM, Alex Gorbachev wrote: Hi Sam, On Mon, Oct 2, 2017 at 6:01 PM Sam Huracan mailto:nowitzki.sa...@gmail.com>> wrote: Anyone can help me? On Oct 2, 2017 17:56, "Sam Huracan" mailto:nowitzki.sa...@gmail.com>> wrote: Hi, I'm reading this document:

Re: [ceph-users] BlueStore questions about workflow and performance

Hi Sam, On Mon, Oct 2, 2017 at 6:01 PM Sam Huracan wrote: > Anyone can help me? > > On Oct 2, 2017 17:56, "Sam Huracan" wrote: > >> Hi, >> >> I'm reading this document: >> >> http://storageconference.us/2017/Presentations/CephObjectStore-slides.pdf >> >> I have 3 questions: >> >> 1. BlueStore w

Re: [ceph-users] BlueStore questions about workflow and performance

Anyone can help me? On Oct 2, 2017 17:56, "Sam Huracan" wrote: > Hi, > > I'm reading this document: > http://storageconference.us/2017/Presentations/CephObjectStore-slides.pdf > > I have 3 questions: > > 1. BlueStore writes both data (to raw block device) and metadata (to > RockDB) simultaneous

[ceph-users] BlueStore questions about workflow and performance

Hi, I'm reading this document: http://storageconference.us/2017/Presentations/CephObjectStore-slides.pdf I have 3 questions: 1. BlueStore writes both data (to raw block device) and metadata (to RockDB) simultaneously, or sequentially? 2. From my opinion, performance of BlueStore can not compar