Hi all
I'm building a small ceph cluster with 3 nodes (my first ceph cluster).Each
Node with one System Disk, one Journal SSD Disk and one SATA OSD Disk.
My question is now should I use Desktop or Enterprise SATA Drives? Enterprise
Drives have a higher MTBF but the Firmware is actually build for RAID
Controllerswhich have different timing. WD calls that TELR, Seagate Error
Recovery Control (ERC).In case of an error, they make shure the RAID Controller
doesn't throw them out of the arrayafter short time.
Desktop Drives can try seconds to minutes until they give up.Can Rados/Ceph
handle such long time without get answer from the Drive?Will the Node then
marked bad/out from the cluster?
Thank you in advance for your answers.
Regards,Stefan
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