[PVE-User] shrinking a qcow2 disk

2015-05-16 Thread Miguel Gonzalez
Dear all,   I have been searching around how to resize a disk that was created for 256 Gb but currently only has 50 Gb. Unfortunately it grew up to 108 Gb and now I can't claim the spaces by the files I have already deleted.   If possible, I would like to avoid any downtime or minimize it. Some

Re: [PVE-User] New wiki article: Serial Terminal with PVE

2015-05-16 Thread Wolfgang Bumiller
On May 16, 2015 at 4:56 AM Adam Thompson athom...@athompso.net wrote: On 2015-05-12 04:04 AM, Emmanuel Kasper wrote: Hi I found out the *qm terminal* command line switch was lacking a comprehensive documentation so I wrote a wiki article about it.

Re: [PVE-User] Ceph cache tiering

2015-05-16 Thread Alexandre DERUMIER
A lot of users on ceph mailing have reported problem with samsung evo drives, mainly because they are pretty slow for O_DSYNC writes See this for benching them. http://www.sebastien-han.fr/blog/2014/10/10/ceph-how-to-test-if-your-ssd-is-suitable-as-a-journal-device/ - Mail original -

[PVE-User] Ceph cache tiering

2015-05-16 Thread Fabrizio Cuseo
Hallo there. I am testing the ceph performances with a SSD cache journal. My setup is: - 3 hosts, 2 x quad opteron, 64 Gbyte, 1 x giga ethernet (for proxmox), 1 infiniband 20Gbit (for ceph), 1 x Perc6I with 7 x WD 1Tbyte 128Mb cache (enterprise edition), 1 for proxmox, 6 for ceph OSD, and 1 x