Hi Michael, El 8/6/21 a las 11:38, Ml Ml escribió:
Hello List, i used to build 3 Node Cluster with spinning Rust and later with (Enterprise) SSDs. All i did was to buy a 19" Server with 10/12 Slots, plug in the Disks and i was done. The Requirements were just 10/15TB Disk usage (30-45TB Raw). Now i was asked if i could also build a cheap 200-500TB Cluster Storage, which should also scale. Just for Data Storage such as NextCloud/OwnCloud. Buying 3x 24 Slot Server with 8TB Enterprise SSDs ends up at about 3x 45k EUR = 135k EUR. Where the SSDs are 90% of the price. (about 1.700EUR per 8TB SSD) How do the "big boys" do this? Just throw money at it? Would a mix of OSD SSD Metadata + Spinning Rust do the job? My experience so far is that each time i had a crash/problem it was always such a pain to wait for the spinning rust. Do you have any experience/hints on this? Maybe combine 3x 10TB HDDs to a 30TB Raid0/striping Disk => which would speed up the performance, but have a bigger impact on a dying disk. My requirements are more or less low IO Traffic but loads of disk space usage. Any hints/ideas/links are welcome.
You don't give details about RAM and CPU, but at 24xEnterprise SSD per server I think you'll be wasting much of those SSD's performance...
I suggest you consider a 4-6 server cluster, and SSD for wal + Spinning disks for storage. This will give you more redundancy for less money, and more peace of mind when a spinning disk fails.
Cheers Eneko Lacunza Zuzendari teknikoa | Director técnico Binovo IT Human Project Tel. +34 943 569 206 | https://www.binovo.es Astigarragako Bidea, 2 - 2º izda. Oficina 10-11, 20180 Oiartzun https://www.youtube.com/user/CANALBINOVO https://www.linkedin.com/company/37269706/ _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
