What about PXE booting the OSD's server ? I am considering doing these sort of things as it doesn't seem that complicated. A simple script could easily bring the osd back onine using some lvm commands to bring the lvm back online and then some ceph-lvm activate command to fire the osd's back up.
2018-08-15 16:09 GMT+02:00 Götz Reinicke <goetz.reini...@filmakademie.de>: > Hi, > >> Am 15.08.2018 um 15:11 schrieb Steven Vacaroaia <ste...@gmail.com>: >> >> Thank you all >> >> Since all concerns were about reliability I am assuming performance impact >> of having OS running on SD card is minimal / negligible > > some time ago we had a some Cisco Blades booting VMware esxi from SD cards > and hat no issue for month …till after an update the blade was rebooted and > the SD failed …and then an other on an other server … From my POV at that > time the „server" SDs where not close as reliable as SSDs or rotating disks. > My experiences from some years ago. > >> >> In other words, an OSD server is not writing/reading from Linux OS >> partitions too much ( especially with logs at minimum ) >> so its performance is not dependent on what type of disk OS resides on > > Regarding performance: What kind of SDs are supported? You can get some > "SDXCTM | UHS-II | U3 | Class 10 | V90“ which can handle up to 260 > MBytes/sec; like „Angelbird Matchpack EVA1“ ok they are Panasonic 4K Camera > certified (and we use them currently to record 4K video) > > https://www.angelbird.com/prod/match-pack-for-panasonic-eva1-1836/ > > My2cents . Götz > > > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
