Re: [OmniOS-discuss] Slow scrub on SSD-only pool

Am 22.04.16 um 19:28 schrieb Dan McDonald: On Apr 22, 2016, at 1:13 PM, Richard Elling wrote: If you're running Solaris 11 or pre-2015 OmniOS, then the old write throttle is impossible to control and you'll chase your tail trying to balance scrubs/resilvers

Re: [OmniOS-discuss] Slow scrub on SSD-only pool

> On Apr 22, 2016, at 1:13 PM, Richard Elling > wrote: > > If you're running Solaris 11 or pre-2015 OmniOS, then the old write throttle > is impossible > to control and you'll chase your tail trying to balance scrubs/resilvers > against any other > workload.

Re: [OmniOS-discuss] Slow scrub on SSD-only pool

> On Apr 22, 2016, at 10:28 AM, Dan McDonald wrote: > > >> On Apr 22, 2016, at 1:13 PM, Richard Elling >> wrote: >> >> If you're running Solaris 11 or pre-2015 OmniOS, then the old write throttle >> is impossible >> to control and you'll

Re: [OmniOS-discuss] Slow scrub on SSD-only pool

> On Apr 22, 2016, at 5:00 AM, Stephan Budach wrote: > > Am 21.04.16 um 18:36 schrieb Richard Elling: >>> On Apr 21, 2016, at 7:47 AM, Chris Siebenmann wrote: >>> >>> [About ZFS scrub tunables:] Interesting read - and it surely works. If you

Re: [OmniOS-discuss] Slow scrub on SSD-only pool

> On Apr 21, 2016, at 7:47 AM, Chris Siebenmann wrote: > > [About ZFS scrub tunables:] >> Interesting read - and it surely works. If you set the tunable before >> you start the scrub you can immediately see the thoughput being much >> higher than with the standard setting.

Re: [OmniOS-discuss] Slow scrub on SSD-only pool

[About ZFS scrub tunables:] > Interesting read - and it surely works. If you set the tunable before > you start the scrub you can immediately see the thoughput being much > higher than with the standard setting. [...] It's perhaps worth noting here that the scrub rate shown in 'zpool status' is

Re: [OmniOS-discuss] Slow scrub on SSD-only pool

Am 19.04.16 um 23:31 schrieb wuffers: You might want to check this old thread: http://lists.omniti.com/pipermail/omnios-discuss/2014-July/002927.html Richard Elling had some interesting insights on how the scrub works: "So I think the pool is not scheduling scrub I/Os very well. You can

Re: [OmniOS-discuss] Slow scrub on SSD-only pool

You might want to check this old thread: http://lists.omniti.com/pipermail/omnios-discuss/2014-July/002927.html Richard Elling had some interesting insights on how the scrub works: "So I think the pool is not scheduling scrub I/Os very well. You can increase the number of scrub I/Os in the

Re: [OmniOS-discuss] Slow scrub on SSD-only pool

Am 17.04.16 um 20:42 schrieb Dale Ghent: On Apr 17, 2016, at 9:07 AM, Stephan Budach wrote: Well… searching the net somewhat more thoroughfully, I came across an archived discussion which deals also with a similar issue. Somewhere down the conversation, this parameter

[OmniOS-discuss] Slow scrub on SSD-only pool

Hi all, I am running a scrub on a SSD-only zpool on r018. This zpool consists of 16 iSCSI targets, which are served from two other OmniOS boxes - currently still running r016 over 10GbE connections. This zpool serves as a NFS share for my Oracle VM cluster and it delivers reasonable