Re: [OmniOS-discuss] iSCSI poor write performance

Hi Martin, On 23.09.2015 10:51, Martin Truhlář wrote: Tests revealed, that problem is somewhere in disk array itself. are you familiar with the ashift problem on 4k drives? My best guess would be that the 1 TB WD drives are emulating a block size of 512 bytes while using 4k sectors

Re: [OmniOS-discuss] iSCSI poor write performance

: [OmniOS-discuss] iSCSI poor write performance Hi Martin, On 23.09.2015 10:51, Martin Truhlář wrote: > Tests revealed, that problem is somewhere in disk array itself. are you familiar with the ashift problem on 4k drives? My best guess would be that the 1 TB WD drives are emulating a block size of

Re: [OmniOS-discuss] iSCSI poor write performance

id: 1 > guid: 3033691275784652782 >path: '/dev/dsk/c1t50014EE0AEB44327d0s0' >devid: 'id1,sd@n50014ee0aeb44327/a' >phys_path: '/scsi_vhci/disk@g50014ee0aeb44327:a' >whole_disk: 1 >cre

Re: [OmniOS-discuss] iSCSI poor write performance

-discuss] iSCSI poor write performance On Sep 16, 2015, at 4:04 AM, Martin Truhlář <martin.truh...@archcon.cz> wrote: Yes, I'm aware, that problem can be hidden in many places. MTU is 1500. All nics and their setup are included at this email. Start by making your 10GigE network use 90

Re: [OmniOS-discuss] iSCSI poor write performance

To: Martin Truhlář Cc: omnios-discuss@lists.omniti.com; Dan McDonald Subject: Re: [OmniOS-discuss] iSCSI poor write performance On Sep 16, 2015, at 4:04 AM, Martin Truhlář <martin.truh...@archcon.cz> wrote: Yes, I'm aware, that problem can be hidden in many places. MTU is 1500. Al

Re: [OmniOS-discuss] iSCSI poor write performance

: com.delphix:hole_birth com.delphix:embedded_data -Original Message- From: Hanno Hirschberger [mailto:hannohirschber...@googlemail.com] Sent: Wednesday, September 23, 2015 2:43 PM To: omnios-discuss@lists.omniti.com Subject: Re: [OmniOS-discuss] iSCSI poor write performance Hi

Re: [OmniOS-discuss] iSCSI poor write performance

On Wed, 23 Sep 2015 17:23:24 +0200 Stephan Budach wrote: > > At any way, you will need to get the performance of your zpools straight > first, before even beginning to think on how to tweak the performance over > the network. > Since his pool is comprised of vdev

Re: [OmniOS-discuss] iSCSI poor write performance

Am 23.09.15 um 18:59 schrieb Michael Rasmussen: On Wed, 23 Sep 2015 17:23:24 +0200 Stephan Budach wrote: At any way, you will need to get the performance of your zpools straight first, before even beginning to think on how to tweak the performance over the network.

Re: [OmniOS-discuss] iSCSI poor write performance

@lists.omniti.com; Dan McDonald Subject: Re: [OmniOS-discuss] iSCSI poor write performance > On Sep 16, 2015, at 4:04 AM, Martin Truhlář <martin.truh...@archcon.cz> wrote: > > Yes, I'm aware, that problem can be hidden in many places. > MTU is 1500. All nics and their setup are included at

Re: [OmniOS-discuss] iSCSI poor write performance

On Wed, 23 Sep 2015 19:56:26 +0200 Stephan Budach wrote: > Huh? Where did that escape me? I don't think, that the pool layout showed any > remote disks, they all Sorry, reading to hastig. Misread phys_path: '/scsi_vhci/disk@g50014ee00400fa16:a' for iscsi. --

Re: [OmniOS-discuss] iSCSI poor write performance

@lists.omniti.com; Dan McDonald Subject: Re: [OmniOS-discuss] iSCSI poor write performance > On Sep 9, 2015, at 12:24 PM, Martin Truhlář <martin.truh...@archcon.cz> wrote: > > Hello everybody, > > I have a problem here, I can’t move with. My Windows server runs as virtual > mach

Re: [OmniOS-discuss] iSCSI poor write performance

> On Sep 16, 2015, at 4:04 AM, Martin Truhlář wrote: > > Yes, I'm aware, that problem can be hidden in many places. > MTU is 1500. All nics and their setup are included at this email. Start by making your 10GigE network use 9000 MTU. You'll need to configure this