Vitaliy you are crazy ;) But really cool work. Why not combine efforts
with ceph? Especially with something as important as SDS and PB's of
clients data stored on it, everyone with a little bit of brain chooses a
solution from a 'reliable' source. For me it was decisive to learn that
CERN and NASA were using this on a large scale. I do not have the
expertise nor time (like probably 90% of ceph users) to test how they
have been testing and using ceph.
I often see opensource projects that could benefit from cooperation.
Some teams totally lack the expertise that others have, and vice versa.
Providing the community with 10 or 20 'shitty' projects instead of 3
'good' projects.
I think opensource projects should more often embrace a sort of modular
development solution. Where others can change functionality by replacing
just a module. If I ever get my idea funded, I would make it like this.
-----Original Message-----
Cc: dev(a)ceph.io; ceph-users(a)ceph.io
Subject: [ceph-users] Re: Vitastor, a fast Ceph-like block storage for
VMs
I love how it’s not possible to delete inodes yet. Data loss would be a
thing of the past!
Jokes aside, interesting project.
Sent from mobile
Op 23 sep. 2020 om 00:45 heeft vitalif(a)yourcmc.ru het
volgende
geschreven:
Hi!
After almost a year of development in my spare time I present my own
software-defined block storage system: Vitastor -
https://vitastor.io
I designed it similar to Ceph in many ways, it also has Pools, PGs,
OSDs,
different coding schemes, rebalancing and so on. However it's much
simpler and much faster. In a test cluster with SATA SSDs it achieved
Q1T1 latency of 0.14ms which is especially great compared to Ceph RBD's
1ms for writes and 0.57ms for reads. In an "iops saturation" parallel
load benchmark it reached 895k read / 162k write iops, compared to
Ceph's 480k / 100k on the same hardware, but the most interesting part
was CPU usage: Ceph OSDs were using 40 CPU cores out of 64 on each node
and Vitastor was only using 4.
Of course it's an early pre-release which means that, for example, it
lacks
snapshot support and other useful features. However the base is
finished - it works and runs QEMU VMs. I like the design and I plan to
develop it further.
There are more details in the README file which currently opens from
the domain
https://vitastor.io
Sorry if it was a bit off-topic, I just thought it could be
interesting for you :)
--
With best regards,
Vitaliy Filippov
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