Set write_cache for ceph disks persistent

Aug 28, 2017
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Hi,

we changed the write_cache setting for disk based ceph osds by chaging /sys/block/sdXX/queue/write_cache manually.
Is there a preffered way to set this in proxmox, or could this even be an enhancement request to set the write cache for ceph disks from pve?
 
Hi,

we changed the write_cache setting for disk based ceph osds by chaging /sys/block/sdXX/queue/write_cache manually.
Is there a preffered way to set this in proxmox, or could this even be an enhancement request to set the write cache for ceph disks from pve?

If you have SAS drives, you can run the following command as root: sdparm --set=WCE --save /dev/sd[X].

To confirm write cache is enabled as root, run: sdparm --get=WCE /dev/sd[X]

1 = on
0 = off
 

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