On 29/11/2016 12:30, Eugene M. Zheganin wrote:
Hi.
On 28.11.2016 23:07, Steven Hartland wrote:
Check your gstat with -dp so you also see deletes, it may be that your
drives have a very slow TRIM.
Indeed, I see a bunch of delete operations, and when TRIM disabled my
engineers report that the
Hi.
On 28.11.2016 23:07, Steven Hartland wrote:
> Check your gstat with -dp so you also see deletes, it may be that your
> drives have a very slow TRIM.
>
Indeed, I see a bunch of delete operations, and when TRIM disabled my
engineers report that the performance is greatly increasing. Is this it
Check your gstat with -dp so you also see deletes, it may be that your
drives have a very slow TRIM.
On 28/11/2016 17:54, Eugene M. Zheganin wrote:
Hi,
recently we bough a bunch of "Sandisk CloudSpeed Gen. II Eco Channel"
disks (the model name by itself should already made me suspicious) for
Hi,
recently we bough a bunch of "Sandisk CloudSpeed Gen. II Eco Channel"
disks (the model name by itself should already made me suspicious) for
using with zfs SAN on FreeBSD, we're plugged them into the LSI SAS3008
and now we are experiencing the performance that I would call "literally
