[ceph-users] Re: SSD recommendations for RBD and VM's

2021-06-05 Thread Alexander E. Patrakov
пт, 4 июн. 2021 г. в 15:58, mhnx : > > I wonder that when a osd came back from power-lost, all the data > scrubbing and there are 2 other copies. > PLP is important on mostly Block Storage, Ceph should easily recover > from that situation. > That's why I don't understand why I should pay more for P

[ceph-users] Re: SSD recommendations for RBD and VM's

2021-06-05 Thread Anthony D'Atri
>> I wonder that when a osd came back from power-lost, all the data >> scrubbing and there are 2 other copies. >> PLP is important on mostly Block Storage, Ceph should easily recover >> from that situation. >> That's why I don't understand why I should pay more for PLP and other >> protections. >

[ceph-users] Re: Connect ceph to proxmox

2021-06-05 Thread Martin Verges
Hello Szabo, you can try it with our docs at https://croit.io/docs/master/hypervisors/proxmox, maybe it helps you to connect your Ceph cluster to Proxmox. -- Martin Verges Managing director Mobile: +49 174 9335695 E-Mail: martin.ver...@croit.io Chat: https://t.me/MartinVerges croit GmbH, Fresen

[ceph-users] Re: RBD + ZFS + NFS = bad performance. How to speed up?

2021-06-05 Thread mhnx
Hi again! I've found an open issue at ZFS and there are some good informations: https://github.com/openzfs/zfs/issues/3324 For example max_recordsize=4M very helps due to Ceph recordsize. I was getting 30-50MiB/s with fio %50 RW now I can reach 200MiBs that's good but still not good as I expected.

[ceph-users] RBD + ZFS + NFS = bad performance. How to speed up?

2021-06-05 Thread mhnx
Hello. I'm using rbd disks for zfs and on the zfs I use NFS. I see 10-50MB/s top. When I use the rbd disk in the VM environment it can reach 1GB/s RW so there is nothing wrong with the rbd and the cluster. Also I'm sure about ZFS+NFS performance when zfs on the real device. But when they work toge

[ceph-users] Re: Connect ceph to proxmox

2021-06-05 Thread Andrew Walker-Brown
Hi Yes you can, check on the Proxmox forums for details, but that’s how I run my setup. Andrew Sent from my iPhone On 5 Jun 2021, at 03:18, Szabo, Istvan (Agoda) wrote: Hi, Is there a way to connect from my nautilus ceph setup the pool that I created in ceph to proxmox? Or need a totally