[ceph-users] Re: monitoring drives

2022-10-14 Thread John Petrini
We run a mix of Samsung and Intel SSD's, our solution was to write a script that parses the output of the Samsung SSD Toolkit and Intel ISDCT CLI tools respectively. In our case, we expose those metrics using node_exporter's textfile collector for ingestion by prometheus. It's mostly the same smart

[ceph-users] Re: Ceph container image repos

2021-12-13 Thread John Petrini
"As of August 2021, new container images are pushed to quay.io registry only. Docker hub won't receive new content for that specific image but current images remain available.As of August 2021, new container images are pushed to quay.io registry only. Docker hub won't receive new content for that s

[ceph-users] Re: Large rbd

2021-01-21 Thread John Petrini
I've always been curious about this. Does anyone have any experience spanning an LVM VG over multiple RBDs? ___ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io

[ceph-users] Re: guest fstrim not showing free space

2020-12-07 Thread John Petrini
I should have started out by asking how is the RBD mounted? Directly on a host of through a hypervisor like KVM? ___ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io

[ceph-users] Re: guest fstrim not showing free space

2020-12-07 Thread John Petrini
What driver did you use to mount the volumes? I believe only virtio-scsi supports fstrim commands. ___ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io

[ceph-users] Re: Ceph Apply/Commit vs Read/Write Op Latency

2020-05-12 Thread John Petrini
Hello, Bumping this in hopes that someone can shed some light on this. I've tried to find details on these metrics but I've come up empty handed. Thank you, John ___ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-use

[ceph-users] Ceph Apply/Commit vs Read/Write Op Latency

2020-04-22 Thread John Petrini
Hello, I was hoping someone could clear up the difference between these metrics. In filestore the difference between Apply and Commit Latency was pretty clear and these metrics gave a good representation of how the cluster was performing. High commit usually meant our journals were performing poor

[ceph-users] Re: pg_num as power of two adjustment: only downwards?

2020-03-04 Thread John Petrini
You need to increase the pg number (number of placement groups) before you increase the pgp number (number of placement groups for placement). The former creates the pg's and the latter activates them and triggers a rebalance. ___ ceph-users mailing list

[ceph-users] Re: bluestore worries

2019-12-16 Thread John Petrini
I had similar concerns when we moved to bluestore. We run filestore clusters with HDD OSD's and SSD journals and I was worried bluestore wouldn't perform as well with the change from journals to WAL. As it turns out our bluestore clusters outperform our filestore clusters in all regards, latency, t