Yes I'm planning to use only 60% - 70% of my disks and pools like buckets.index doesn't grow too much and don't need much space! I'm just trying to make this pool faster because I see it sometimes needs 1Milion iops and I think NVME is a good option for this pool. But finding a good datacenter NVME in low space is too hard :( On Mon, Sep 14, 2020 at 7:32 PM Martin Verges <martin.verges@xxxxxxxx> wrote: > Hello, > > Please keep in mind that you can have significant operational problems if > you choose too small OSDs. Sometimes your OSDs require >40G for > osdmaps/pgmaps/... and the smaller you OSD, the more likely it will be a > problem as Ceph is totally unable to deal with full disks and break apart. > > -- > Martin Verges > Managing director > > Mobile: +49 174 9335695 > E-Mail: martin.verges@xxxxxxxx > Chat: https://t.me/MartinVerges > > croit GmbH, Freseniusstr. 31h, 81247 Munich > CEO: Martin Verges - VAT-ID: DE310638492 > Com. register: Amtsgericht Munich HRB 231263 > > Web: https://croit.io > YouTube: https://goo.gl/PGE1Bx > > > Am Mo., 14. Sept. 2020 um 15:58 Uhr schrieb <response@xxxxxxxxxxxx>: > >> https://www.kingston.com/unitedkingdom/en/ssd/dc1000b-data-center-boot-ssd >> >> look good for your purpose. >> >> >> >> ----- Original Message ----- >> From: "Seena Fallah" <seenafallah@xxxxxxxxx> >> To: "Виталий Филиппов" <vitalif@xxxxxxxxxx> >> Cc: "Anthony D'Atri" <anthony.datri@xxxxxxxxx>, "ceph-users" < >> ceph-users@xxxxxxx> >> Sent: Monday, September 14, 2020 2:47:14 PM >> Subject: Re: Choosing suitable SSD for Ceph cluster >> >> Thanks for the sheet. I need a low space disk for my use case (around >> 240GB). Do you have any suggestions with M.2 and capacitors? >> >> On Mon, Sep 14, 2020 at 6:11 PM <vitalif@xxxxxxxxxx> wrote: >> >> > There's also Micron 7300 Pro/Max. Please benchmark it like described >> here >> > >> https://docs.google.com/spreadsheets/d/1E9-eXjzsKboiCCX-0u0r5fAjjufLKayaut_FOPxYZjc/edit >> > and send me the results if you get one :)) >> > >> > Samsung PM983 M.2 >> > >> > I want to have a separate disk for buckets index pool and all of my >> server >> > bays are full and I should use m2 storage devices. Also the bucket index >> > doesn't need much space so I plan to have a 6x device with replica 3 for >> > it. Each disk could be 240GB to not waste space but there is no >> enterprise >> > nvme disk in this space! Do you have any recommendations? >> > On Sun, Sep 13, 2020 at 10:17 PM Виталий Филиппов <vitalif@xxxxxxxxxx> >> > wrote: >> > >> > Easy, 883 has capacitors and 970 evo doesn't >> > 13 сентября 2020 г. 0:57:43 GMT+03:00, Seena Fallah < >> seenafallah@xxxxxxxxx> >> > пишет: >> > >> > Hi. How do you say 883DCT is faster than 970 EVO? I saw the >> specifications and 970 EVO has higher IOPS than 883DCT! Can you please tell >> why 970 EVO act lower than 883DCT? >> > >> > ------------------------------ >> > ceph-users mailing list -- ceph-users@xxxxxxx >> > To unsubscribe send an email to ceph-users-leave@xxxxxxx >> > >> > >> > -- >> > With best regards, >> > Vitaliy Filippov >> > >> > >> > >> > >> > >> > >> _______________________________________________ >> ceph-users mailing list -- ceph-users@xxxxxxx >> To unsubscribe send an email to ceph-users-leave@xxxxxxx >> _______________________________________________ >> ceph-users mailing list -- ceph-users@xxxxxxx >> To unsubscribe send an email to ceph-users-leave@xxxxxxx >> > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
 |