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I guess we could add more than one cluster in the PBS you provide ?

Hi, I just subscribed :) 2 backups of 3 vms (1 full and second incremental) works as expected - very fast servers - first backup was done in 2-3 min - second less than 10s Thanks for allowing us make external backups for free ;)

Hi, Sure, I will :) I'm about to take 2 Samsung PM1635a 400 GB (write intensive) SAS 12Gb and 10 x 4TB SATA 512n. My pool should be a stripe of 2 raidz2 vdevs or 3 raidz with these 2 SSDs for special device (some kind of raid60 / 50). That should be convenient. However, I have to replicate...

Thanks, Seems that ZIL used for writes and ARC for reads cf interesting article here : https://linuxhint.com/configuring-zfs-cache/ so logs need to be mirrored IMHO, and ZIL is the must important matter in PBS work way.

Hi, Is there a way to make PBS work with Freenas in order to have all functionalities you provide via ZFS but on a remote (ZFS compliant) NAS ? Thanks !

Thanks, that's why I specified special mirror Thus, is it possible to create a pool like this ? zpool create -f -o ashift=12 <pool> raidz2 <sata1> <sata2> <sata3> <sata4>...<sata10> cache mirror <ssd1> <ssd2> log mirror <ssd1> <ssd2> special mirror <ssd1> <ssd2> In order to put everything...

Thanks ! So you suggest using special device instead of log. So when building the pool : zpool create -f -o ashift=12 <pool> raidz2 <sata1> <sata2> <sata3> <sata4>...<sata10> special mirror <ssd1> <ssd2> and then zfs set special_small_blocks=4K <pool> I have 3 clusters (6 nodes each), hope...

Hi ! I plan to install a dedicated PBS for all my PVE clusters. Which is composed by : 1 Intel Xeon Silver 4216 (2,1GHz, 16C/32T) 64 Go RAM 2 sata disks for OS 10 x 4To sata disk for ZFS 2x 25Gb NICs I also added 2x SAS SSD drives (400 Go) writes intensive. What is the best way to configure...

Thanks... I ran the command line instead Also, did you ever seen some bad writes performances with ceph just after building the first pool ? For example, with 18 SSD ODS => 400Mbytes/s writes and 2000Mbytes/s read. I was expecting 900Mbytes/s for writes With same hardware on proxmox 5.4 =>...

Here is a screenshot

Same behaviour on a fresh install of pve on vmware workstation

Hi, Yes, works as expected

Hi, After installing 3 nodes on a fresh cluster (6.2-11) I'm not able to install Ceph from GUI. Error is : nothing interesting on syslog. Thanks in advance ! Antoine

I was wrong common/options: Disable bluefs_buffered_io by default again (pr#34297, Mark Nelson) Good !

thanks... seems not :/

Hi, Is 14.2.11 fix this issue ?

From my understanding writes should go on a queue in RAM until FS becomes writable.

Hi, Yes but only the time needed for taking the snapshot. In fact no more than few seconds