Re: [ceph-users] RBD: Max queue size

2015-11-30 Thread Timofey Titovets
Big Thanks Ilya, for explanation 2015-11-30 22:15 GMT+03:00 Ilya Dryomov : > On Mon, Nov 30, 2015 at 7:47 PM, Timofey Titovets > wrote: >> >> On 30 Nov 2015 21:19, "Ilya Dryomov" wrote: >>> >>> On Mon, Nov 30, 2015 at 7:17 PM, Timofey Titovets >>> wrote: >>> > Hi list, >>> > Short: >>> > i jus

Re: [ceph-users] RBD: Max queue size

2015-11-30 Thread Ilya Dryomov
On Mon, Nov 30, 2015 at 7:47 PM, Timofey Titovets wrote: > > On 30 Nov 2015 21:19, "Ilya Dryomov" wrote: >> >> On Mon, Nov 30, 2015 at 7:17 PM, Timofey Titovets >> wrote: >> > Hi list, >> > Short: >> > i just want ask, why i can't do: >> > echo 129 > /sys/class/block/rbdX/queue/nr_requests >> >

Re: [ceph-users] RBD: Max queue size

2015-11-30 Thread Timofey Titovets
On 30 Nov 2015 21:19, "Ilya Dryomov" wrote: > > On Mon, Nov 30, 2015 at 7:17 PM, Timofey Titovets wrote: > > Hi list, > > Short: > > i just want ask, why i can't do: > > echo 129 > /sys/class/block/rbdX/queue/nr_requests > > > > i.e. why i can't set value greater then 128? > > Why such a restrict

Re: [ceph-users] RBD: Max queue size

2015-11-30 Thread Ilya Dryomov
On Mon, Nov 30, 2015 at 7:17 PM, Timofey Titovets wrote: > Hi list, > Short: > i just want ask, why i can't do: > echo 129 > /sys/class/block/rbdX/queue/nr_requests > > i.e. why i can't set value greater then 128? > Why such a restriction? > > Long: > Usage example: > i have slow CEPH HDD based st

[ceph-users] RBD: Max queue size

2015-11-30 Thread Timofey Titovets
Hi list, Short: i just want ask, why i can't do: echo 129 > /sys/class/block/rbdX/queue/nr_requests i.e. why i can't set value greater then 128? Why such a restriction? Long: Usage example: i have slow CEPH HDD based storage and i want it export by iSCSI proxy machine for ESXi cluster If i have